/**
 * Neurosync Lab Landing Page Styles
 * Matching the app's cosmic precision aesthetic
 */

/* ===== CSS VARIABLES ===== */
:root {
    /* Colors - Matching App Palette */
    --primary: #D4A574;           /* Bronze/gold accent */
    --primary-dark: #C9A571;
    --primary-light: #E4B584;
    --secondary: #00D9B1;         /* Cyan/teal for success states */
    --accent: #B8C5D6;            /* Light blue-gray */

    /* Background - Dark Gradient */
    --bg-dark-start: #1A1D23;
    --bg-dark-end: #0F1115;
    --bg-primary: #0F1115;
    --bg-secondary: rgba(45, 42, 39, 0.3);
    --bg-tertiary: rgba(45, 42, 39, 0.5);
    --bg-card: rgba(26, 29, 35, 0.6);

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #9CA3AF;
    --text-tertiary: #6B7280;
    --text-accent: #D4A574;

    /* Borders */
    --border: #3A3733;
    --border-hover: #4A4743;
    --border-active: #D4A574;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography - Monospace Like App */
    --font-mono: 'SF Mono', 'Monaco', 'Consolas', 'Courier New', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Shadows - Subtle */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-mono);
    background: linear-gradient(180deg, var(--bg-dark-start) 0%, var(--bg-dark-end) 100%);
    min-height: 100vh;
    color: var(--text-secondary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: 2px;
}

h1 { font-size: 2.5rem; letter-spacing: 6px; }
h2 { font-size: 2rem; letter-spacing: 4px; }
h3 { font-size: 1.5rem; letter-spacing: 3px; }
h4 { font-size: 1.25rem; letter-spacing: 2px; }
h5 { font-size: 1.125rem; letter-spacing: 1.5px; }
h6 { font-size: 1rem; letter-spacing: 1px; }

@media (max-width: 768px) {
    h1 { font-size: 2rem; letter-spacing: 4px; }
    h2 { font-size: 1.75rem; letter-spacing: 3px; }
    h3 { font-size: 1.5rem; letter-spacing: 2px; }
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.8;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-light);
}

ul {
    list-style: none;
}

/* ===== BUTTONS ===== */
.btn-primary,
.btn-secondary,
.btn-large {
    display: inline-block;
    padding: 14px 28px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 13px;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-family: var(--font-mono);
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-dark-end);
    box-shadow: var(--shadow-md);
    white-space: nowrap;
}

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(212, 165, 116, 0.4);
    color: var(--bg-dark-end);
}

.btn-secondary {
    background: transparent;
    color: #E8E8E8;
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--primary);
    color: var(--primary);
}

.btn-large {
    padding: 16px 32px;
    font-size: 15px;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 17, 21, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
    letter-spacing: 4px;
}

.logo {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(15, 17, 21, 0.98);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        box-shadow: var(--shadow-xl);
        transform: translateY(-150%);
        transition: var(--transition);
        border-bottom: 1px solid var(--border);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .hamburger {
        display: flex;
    }
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    background: linear-gradient(180deg, rgba(15, 17, 21, 0.48) 0%, rgba(10, 12, 16, 0.52) 100%);
    color: var(--text-primary);
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.12);
    z-index: 0;
    pointer-events: none;
}

/* Lighter overlay for desktop */
@media (min-width: 1024px) {
    .hero {
        background: linear-gradient(180deg, rgba(15, 17, 21, 0.32) 0%, rgba(10, 12, 16, 0.36) 100%);
    }

    .hero::after {
        background: rgba(0, 0, 0, 0.04);
    }
}

/* Hero background video */
.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    pointer-events: none;
    transition: opacity 1s ease-in;
}

.hero-video.loaded {
    opacity: 0.6 !important;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(212, 165, 116, 0.03) 2px,
        rgba(212, 165, 116, 0.03) 4px
    );
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    letter-spacing: 8px;
    color: var(--text-primary);
    text-transform: uppercase;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
        letter-spacing: 4px;
    }
}

.gradient-text {
    display: block;
    color: var(--primary);
    margin-top: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 14px;
    margin-bottom: var(--spacing-xl);
    color: #E8E8E8;
    line-height: 1.8;
    letter-spacing: 1px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-2xl);
}

.stat-container {
    position: relative;
    padding: var(--spacing-lg);
    background: rgba(15, 17, 21, 0.9);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    min-width: 160px;
    overflow: hidden;
}

.wave-interference-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.12;
    pointer-events: none;
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 4px, #4B5563 4px, #4B5563 5px),
        repeating-linear-gradient(90deg, transparent, transparent 12px, #6B7280 12px, #6B7280 13px),
        repeating-linear-gradient(45deg, transparent, transparent 8px, #374151 8px, #374151 9px);
    animation: waveShift 10s linear infinite;
}

@keyframes waveShift {
    0% { transform: translateX(0) translateY(0); }
    100% { transform: translateX(24px) translateY(24px); }
}

.stat {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1;
}

.stat-number {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 2px;
}

.stat-label {
    font-size: 10px;
    color: #E0E0E0;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.25rem;
}

/* ===== SECTIONS ===== */
section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, var(--border), transparent);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--bg-secondary);
    color: var(--primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-md);
}

.section-title {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    text-transform: uppercase;
}

.section-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--bg-primary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.about-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(212, 165, 116, 0.1),
        transparent
    );
    transition: left 0.5s ease;
}

.about-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.about-card:hover::before {
    left: 100%;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.about-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    color: var(--primary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.about-card p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.8;
}

/* ===== CARDS (GENERAL) ===== */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.card:hover {
    border-color: var(--border-hover);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--text-accent);
    text-transform: uppercase;
}

.card-title {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

/* ===== FEATURE CARDS ===== */
.features {
    background: var(--bg-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(212, 165, 116, 0.1),
        transparent
    );
    transition: left 0.5s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.feature-card:hover::before {
    left: 100%;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    animation: float 3s ease-in-out infinite;
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    color: var(--primary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.feature-card p {
    margin-bottom: var(--spacing-md);
    font-size: 13px;
    color: var(--text-secondary);
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 12px;
    position: relative;
    padding-left: 1.5rem;
}

.feature-list li:before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 600;
}

.feature-list li:last-child {
    border-bottom: none;
}

/* ===== USE CASES ===== */
.use-cases {
    background: var(--bg-primary);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.use-case-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    transition: var(--transition);
    border: 2px solid var(--border);
}

.use-case-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.use-case-image {
    font-size: 3.5rem;
    text-align: center;
    margin-bottom: var(--spacing-md);
    animation: float 3s ease-in-out infinite;
}

.use-case-card h3 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
    font-size: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.use-case-description {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: 13px;
}

.use-case-details {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary);
}

.use-case-details h4 {
    font-size: 11px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-accent);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.use-case-details ul {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.use-case-details li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 12px;
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.6;
}

.use-case-details li:before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 600;
}

.use-case-result {
    margin: 0;
    padding: var(--spacing-sm);
    background: rgba(212, 165, 116, 0.1);
    border-radius: var(--radius-sm);
    font-size: 11px;
    color: var(--text-secondary);
}

.use-case-result strong {
    color: var(--primary);
}

/* ===== TESTIMONIALS ===== */
.testimonials {
    background: var(--bg-primary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.testimonial-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 2px solid var(--border);
    transition: var(--transition);
    position: relative;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(212, 165, 116, 0.1),
        transparent
    );
    transition: left 0.5s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.testimonial-card:hover::before {
    left: 100%;
}

.testimonial-card.featured {
    border-color: var(--primary);
    background: rgba(212, 165, 116, 0.05);
}

.featured-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-lg);
    background: var(--primary);
    color: var(--bg-dark-end);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.testimonial-rating {
    color: var(--primary);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    border: 1px solid var(--border);
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 13px;
    letter-spacing: 1px;
}

.author-title {
    font-size: 11px;
    color: var(--text-tertiary);
}

.testimonial-tag {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--bg-card);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: 9px;
    font-weight: 600;
    border: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.testimonial-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
}

.stat-item {
    text-align: center;
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.25rem;
    letter-spacing: 2px;
}

.stat-label {
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== TRUST BADGES ===== */
.trust-badges {
    background:
        linear-gradient(180deg, rgba(26, 29, 35, 0.85) 0%, rgba(15, 17, 21, 0.9) 100%),
        url('cta-bg.webp') center center / cover no-repeat;
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--border);
}

.trust-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.badges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
}

.badge-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.badge-item:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.badge-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    animation: float 3s ease-in-out infinite;
}

.badge-item h4 {
    font-size: 12px;
    margin-bottom: 0.5rem;
    color: var(--primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.badge-item p {
    font-size: 11px;
    color: var(--text-secondary);
    margin: 0;
}

/* ===== FAQ ===== */
.faq {
    background: var(--bg-primary);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

@media (max-width: 768px) {
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

.faq-item {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-tertiary);
}

.faq-question h4 {
    margin: 0;
    font-size: 13px;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary);
    transition: var(--transition);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta {
    position: relative;
    background: linear-gradient(180deg, rgba(26, 29, 35, 1) 0%, rgba(15, 17, 21, 1) 100%);
    color: var(--text-primary);
    padding: var(--spacing-3xl) 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

.cta-waves {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.4;
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: 4px;
}

.cta p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: var(--spacing-xl);
}

.cta-note {
    margin-top: var(--spacing-md);
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
}

/* ===== FOOTER ===== */
.footer {
    background: rgba(10, 12, 16, 0.8);
    color: var(--text-secondary);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: 3px;
}

.footer-description {
    color: var(--text-tertiary);
    font-size: 12px;
}

.footer-column h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-tertiary);
    transition: var(--transition);
    font-size: 12px;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border);
    color: var(--text-tertiary);
    font-size: 11px;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
    color: var(--text-tertiary);
}

.disclaimer {
    font-size: 10px;
    opacity: 0.7;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.feature-icon:hover,
.use-case-image:hover,
.badge-icon:hover {
    animation: pulse 0.5s ease-in-out;
}

/* Staggered fade-in for cards */
.about-card:nth-child(1),
.feature-card:nth-child(1) { animation-delay: 0.1s; }
.about-card:nth-child(2),
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.about-card:nth-child(3),
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.about-card:nth-child(4),
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.about-card:nth-child(5),
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.about-card:nth-child(6),
.feature-card:nth-child(6) { animation-delay: 0.6s; }

/* Hover glow effect */
.btn-primary:hover {
    box-shadow: 0 0 20px rgba(212, 165, 116, 0.5);
}

/* ===== SCIENCE SECTION ===== */
.science {
    position: relative;
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, rgba(15, 17, 21, 0.48) 0%, rgba(10, 12, 16, 0.52) 100%);
    color: var(--text-primary);
    overflow: hidden;
}

.science::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.12);
    z-index: 0;
    pointer-events: none;
}

/* Lighter overlay for desktop */
@media (min-width: 1024px) {
    .science {
        background: linear-gradient(180deg, rgba(15, 17, 21, 0.32) 0%, rgba(10, 12, 16, 0.36) 100%);
    }

    .science::after {
        background: rgba(0, 0, 0, 0.04);
    }
}

/* Science background video */
.science-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    pointer-events: none;
    transition: opacity 1s ease-in;
}

.science-video.loaded {
    opacity: 0.6 !important;
}

.science::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(90deg, rgba(212, 165, 116, 0.03) 1px, transparent 1px),
        linear-gradient(rgba(212, 165, 116, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 1;
    pointer-events: none;
}

.science .container {
    position: relative;
    z-index: 2;
}

.compensatory-section {
    position: relative;
    padding: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    background:
        linear-gradient(180deg, rgba(26, 29, 35, 0.85) 0%, rgba(15, 17, 21, 0.9) 100%),
        url('compensatory-bg.webp') center center / cover no-repeat;
    border-radius: var(--radius-lg);
}

.science-content {
    max-width: 900px;
    margin: 0 auto;
}

.science-block {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--border);
}

.science-block:last-child {
    border-bottom: none;
}

.science-block h3 {
    margin-bottom: var(--spacing-md);
    color: var(--primary);
    font-size: 16px;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.science-block h3 i {
    margin-right: var(--spacing-sm);
    color: var(--accent);
}

.science-block h4 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-size: 14px;
    letter-spacing: 2px;
}

.science-block h4 i {
    margin-right: var(--spacing-sm);
    color: var(--primary);
}

.science-block p {
    font-size: 13px;
    line-height: 1.8;
}

.brainwave-chart {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.brainwave-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.wave-bar {
    width: 100px;
    height: 40px;
    border-radius: var(--radius-md);
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.wave-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.wave-bar.delta { background: linear-gradient(135deg, #663399 0%, #5a2d82 100%); }
.wave-bar.theta { background: linear-gradient(135deg, #4B7BEC 0%, #3867d6 100%); }
.wave-bar.alpha { background: linear-gradient(135deg, #00D9B1 0%, #00b894 100%); }
.wave-bar.beta { background: linear-gradient(135deg, #FFB627 0%, #e0a219 100%); }
.wave-bar.gamma { background: linear-gradient(135deg, #FF4757 0%, #e03e4a 100%); }

.wave-info h4 {
    font-size: 13px;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    letter-spacing: 1.5px;
}

.wave-info p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 12px;
}

.research-list {
    list-style: none;
    padding-left: 0;
}

.research-list li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 12px;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.8;
}

.research-list li:before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* ===== REDESIGNED SCIENCE SECTIONS ===== */

/* Section intro text */
.section-intro {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Hypothesis Grid */
.hypothesis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.hypothesis-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all 0.3s ease;
}

.hypothesis-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(212, 165, 116, 0.15);
}

.hypothesis-card.nullfield {
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.05) 0%, rgba(0, 217, 177, 0.05) 100%);
}

.hypothesis-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

.hypothesis-card h4 {
    font-size: 14px;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hypothesis-card p {
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.approach-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.approach-label.highlight {
    background: rgba(0, 217, 177, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.analogy-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(212, 165, 116, 0.05);
    border-left: 4px solid var(--primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-xl);
}

.analogy-box i {
    font-size: 2rem;
    color: var(--primary);
    flex-shrink: 0;
}

.analogy-box p {
    margin: 0;
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* Detection Grid */
.detection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.detection-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.detection-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.detection-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.detection-card h4 {
    font-size: 12px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.detection-card p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Protocol Steps */
.protocol-steps {
    display: grid;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.protocol-step {
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.protocol-step:hover {
    border-color: var(--primary);
    transform: translateX(4px);
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--bg-dark-end);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
}

.step-content {
    flex: 1;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.step-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
}

.step-text {
    flex: 1;
}

.step-text h4 {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.step-text p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.result-box {
    display: flex;
    gap: var(--spacing-md);
    background: linear-gradient(135deg, rgba(0, 217, 177, 0.1) 0%, rgba(212, 165, 116, 0.05) 100%);
    border: 2px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.result-box i {
    font-size: 2rem;
    color: var(--accent);
    flex-shrink: 0;
}

.result-box strong {
    color: var(--text-primary);
}

.highlight-value {
    color: var(--accent);
    font-size: 1.1em;
    font-weight: bold;
}

.result-box p {
    margin-top: var(--spacing-sm);
    font-size: 12px;
    color: var(--text-secondary);
}

/* Mechanism Grid */
.mechanism-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.mechanism-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.mechanism-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.mechanism-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.mechanism-card h5 {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1.5px;
}

.mechanism-card p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* Impact Grid */
.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.impact-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.impact-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.impact-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: var(--spacing-md);
}

.impact-card h5 {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1.5px;
}

.impact-card p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* Warning Box */
.warning-box {
    display: flex;
    gap: var(--spacing-md);
    background: rgba(255, 184, 39, 0.05);
    border: 2px solid rgba(255, 184, 39, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.warning-icon {
    flex-shrink: 0;
    font-size: 2.5rem;
    color: #FFB627;
}

.warning-content h4 {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1.5px;
}

.warning-content p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* Research Grid */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.research-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.research-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.research-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.research-card h5 {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1.5px;
}

.research-card p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* Citation Grid */
.citation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.citation-card {
    background: var(--bg-secondary);
    border-left: 4px solid var(--accent);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.citation-card:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 217, 177, 0.1);
}

.citation-icon {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: var(--spacing-sm);
    opacity: 0.5;
}

.citation-card h5 {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1px;
}

.citation-card p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.citation-source {
    font-size: 11px;
    color: var(--primary);
    font-style: italic;
    font-weight: 600;
}

/* Updated Compliance Notice */
.compliance-notice {
    display: flex;
    gap: var(--spacing-md);
    background: rgba(255, 71, 87, 0.05);
    border: 2px solid rgba(255, 71, 87, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.compliance-icon {
    flex-shrink: 0;
    font-size: 2rem;
    color: #FF4757;
}

.compliance-content h4 {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1.5px;
}

.compliance-content p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hypothesis-grid,
    .detection-grid,
    .mechanism-grid,
    .impact-grid,
    .research-grid,
    .citation-grid {
        grid-template-columns: 1fr;
    }

    .protocol-step {
        flex-direction: row;
        align-items: flex-start;
    }

    .step-content {
        flex-direction: row;
        align-items: flex-start;
    }

    .step-number {
        margin-top: 0.25rem;
    }

    .warning-box,
    .compliance-notice,
    .analogy-box {
        flex-direction: column;
        text-align: center;
    }

    .result-box {
        flex-direction: column;
        text-align: center;
    }
}

/* ===== HOW TO USE ===== */
.how-to-use {
    background:
        linear-gradient(180deg, rgba(26, 29, 35, 0.85) 0%, rgba(15, 17, 21, 0.9) 100%),
        url('steps-bg.webp') center center / cover no-repeat;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.step-card {
    text-align: center;
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
}

.step-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: var(--bg-dark-end);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 10px;
    margin-bottom: var(--spacing-md);
    letter-spacing: 1.5px;
}

.step-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.step-card h3 {
    margin-bottom: var(--spacing-md);
    font-size: 14px;
    letter-spacing: 2px;
}

.step-card p {
    font-size: 13px;
    line-height: 1.8;
}

.practices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.practice-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.practice-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.practice-item h4 {
    margin-bottom: 0.5rem;
    font-size: 12px;
    color: var(--primary);
    letter-spacing: 1.5px;
}

.practice-item p {
    font-size: 11px;
    margin: 0;
}

/* Safety Notice */
.safety-notice {
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-lg);
    background: rgba(255, 107, 107, 0.1);
    border: 2px solid rgba(255, 107, 107, 0.3);
    border-radius: var(--radius-lg);
    text-align: center;
}

.safety-notice h4 {
    margin: 0 0 var(--spacing-md) 0;
    font-size: 14px;
    color: #FF6B6B;
    letter-spacing: 1.5px;
    font-weight: 600;
}

.safety-notice p {
    margin: 0;
    font-size: 12px;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
    :root {
        --spacing-xs: 0.25rem;
        --spacing-sm: 0.75rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 2.5rem;
        --spacing-3xl: 3rem;
    }

    .hero {
        padding: calc(60px + var(--spacing-2xl)) 0 var(--spacing-2xl);
    }

    section {
        padding: var(--spacing-2xl) 0;
    }

    .safety-notice {
        margin-top: var(--spacing-2xl);
        padding: var(--spacing-md);
    }

    .safety-notice h4 {
        font-size: 12px;
        margin-bottom: var(--spacing-sm);
    }

    .safety-notice p {
        font-size: 11px;
        line-height: 1.6;
    }
}

/* ===== COMPARISON BOXES ===== */
.comparison-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    position: relative;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.comparison-box.highlight {
    border-color: var(--primary);
    background: rgba(212, 165, 116, 0.05);
}

.comparison-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.comparison-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
}

.error-icon {
    background: rgba(255, 107, 107, 0.2);
    border: 2px solid #FF6B6B;
}

.error-icon::before,
.error-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 2px;
    background: #FF6B6B;
}

.error-icon::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.error-icon::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.success-icon {
    background: rgba(0, 217, 177, 0.2);
    border: 2px solid var(--secondary);
}

.success-icon::before {
    content: '';
    position: absolute;
    top: 45%;
    left: 25%;
    width: 6px;
    height: 12px;
    border-right: 2px solid var(--secondary);
    border-bottom: 2px solid var(--secondary);
    transform: translate(-50%, -50%) rotate(45deg);
}

.vs-divider {
    position: relative;
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.vs-text {
    display: inline-block;
    background: var(--bg-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--primary);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-weight: 700;
    letter-spacing: 4px;
    font-size: var(--font-size-lg);
    z-index: 1;
    position: relative;
}

.vs-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--border) 20%, var(--border) 80%, transparent);
    z-index: 0;
}

.model-description {
    text-align: center;
    font-size: var(--font-size-lg);
    margin: var(--spacing-lg) 0;
    color: var(--text-primary);
}

.comparison-box h4 {
    margin: 0;
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.comparison-box ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.comparison-box li {
    margin: var(--spacing-xs) 0;
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}

.math-formula {
    font-family: var(--font-mono);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary);
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    margin: var(--spacing-md) 0;
    letter-spacing: 2px;
}

/* ===== HYPOTHESIS BOXES ===== */
.hypothesis-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.hypothesis-box.highlight {
    border-color: var(--primary);
    background: rgba(212, 165, 116, 0.05);
}

.hypothesis-box h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
}

.hypothesis-box p {
    margin: 0;
    font-size: var(--font-size-base);
    line-height: 1.6;
}

/* ===== CALCULATION EXAMPLE ===== */
.calculation-example {
    background: var(--bg-primary);
    border: 1px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.calculation-example h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
}

.calculation-example p {
    margin: var(--spacing-sm) 0;
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}

.calculation-example strong {
    color: var(--primary);
}

/* ===== COMPLIANCE NOTICE ===== */
.compliance-notice {
    background: rgba(212, 165, 116, 0.1);
    border: 2px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-2xl) 0;
}

.compliance-notice h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
}

.compliance-notice p {
    margin: 0;
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
}

/* ===== LUNAR CHRONOBIOLOGY SECTION ===== */
.lunar-section {
    background:
        linear-gradient(180deg, rgba(26, 29, 35, 0.85) 0%, rgba(15, 17, 21, 0.9) 100%),
        url('lunar-bg.webp') center center / cover no-repeat;
    padding: var(--spacing-3xl) 0;
}

.lunar-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
}

.lunar-phases-container,
.magnetosphere-diagram {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
}

.lunar-phases-container h3,
.magnetosphere-diagram h3 {
    text-align: center;
    color: var(--primary);
    margin-bottom: var(--spacing-xl);
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: var(--font-size-lg);
}

/* Lunar Phases */
.lunar-phases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

.lunar-phase {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.moon-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    position: relative;
    background: var(--text-secondary);
    box-shadow: 0 0 20px rgba(212, 165, 116, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: lunarPulse 4s ease-in-out infinite;
}

.moon-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 0 40px rgba(212, 165, 116, 0.6);
}

@keyframes lunarPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(212, 165, 116, 0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(212, 165, 116, 0.5);
    }
}

/* Moon Phase Styles */
.new-moon {
    background: var(--bg-dark-end);
    border: 2px solid var(--border);
    animation-delay: 0s;
}

.waxing-crescent {
    background: linear-gradient(90deg, var(--bg-dark-end) 50%, var(--text-secondary) 50%);
    animation-delay: 0.5s;
}

.first-quarter {
    background: linear-gradient(90deg, var(--bg-dark-end) 50%, var(--text-secondary) 50%);
    animation-delay: 1s;
}

.waxing-gibbous {
    background: linear-gradient(90deg, var(--bg-dark-end) 25%, var(--text-secondary) 25%);
    animation-delay: 1.5s;
}

.full-moon {
    background: var(--text-secondary);
    box-shadow: 0 0 30px rgba(212, 165, 116, 0.6);
    animation: fullMoonGlow 3s ease-in-out infinite;
    animation-delay: 2s;
}

@keyframes fullMoonGlow {
    0%, 100% {
        box-shadow: 0 0 30px rgba(212, 165, 116, 0.6);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 50px rgba(212, 165, 116, 0.9);
        transform: scale(1.05);
    }
}

.waning-gibbous {
    background: linear-gradient(90deg, var(--text-secondary) 75%, var(--bg-dark-end) 75%);
    animation-delay: 2.5s;
}

.last-quarter {
    background: linear-gradient(90deg, var(--text-secondary) 50%, var(--bg-dark-end) 50%);
    animation-delay: 3s;
}

.waning-crescent {
    background: linear-gradient(90deg, var(--text-secondary) 50%, var(--bg-dark-end) 50%);
    animation-delay: 3.5s;
}

.phase-name {
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.phase-angle {
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    color: var(--primary);
    font-weight: 600;
}

/* Magnetosphere Diagram */
.diagram-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.magnetosphere-svg {
    width: 80%;
    height: auto;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

@media (max-width: 768px) {
    .magnetosphere-svg {
        width: 100vw;
        margin-left: calc(-50vw + 50%);
        border-radius: 0;
        padding: var(--spacing-md) 0;
    }
}

.diagram-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    padding: var(--spacing-md);
    background: rgba(212, 165, 116, 0.05);
    border-radius: var(--radius-md);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    display: inline-block;
}

.legend-text {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.perigee-info {
    background: rgba(212, 165, 116, 0.1);
    border: 2px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.perigee-info h4 {
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
}

.perigee-info p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.risk-window {
    background: var(--bg-primary);
    padding: var(--spacing-sm);
    border-left: 3px solid var(--primary);
    margin-top: var(--spacing-md);
}

.risk-window strong {
    color: var(--primary);
}

/* Responsive Lunar Section */
@media (max-width: 768px) {
    .lunar-phases {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-md);
    }

    .moon-icon {
        width: 48px;
        height: 48px;
    }

    .phase-name {
        font-size: 8px;
    }

    .phase-angle {
        font-size: 9px;
    }

    .magnetosphere-svg {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .lunar-phases {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-sm);
    }

    .moon-icon {
        width: 40px;
        height: 40px;
    }

    .phase-name {
        font-size: 7px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 50px;
    }

    .phase-angle {
        font-size: 8px;
    }
}

/* ===== CSS ICONS ===== */
.css-icon {
    position: relative;
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Lightning / EMF Icon */
.icon-lightning {
    position: relative;
    width: 24px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-lightning::before {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 16px solid var(--primary);
    top: 0;
}

.icon-lightning::after {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 16px solid var(--primary);
    bottom: 0;
    transform: translateX(4px);
}

/* Lightning NF Logo Icon */
.icon-lightning-nf {
    position: relative;
    width: 28px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-lightning-nf::before {
    content: 'N';
    position: absolute;
    width: 20px;
    height: 18px;
    background: var(--primary);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 900;
    color: var(--bg-dark-end);
    padding-top: 3px;
}

.icon-lightning-nf::after {
    content: 'F';
    position: absolute;
    width: 20px;
    height: 18px;
    background: var(--primary);
    clip-path: polygon(50% 100%, 0% 0%, 100% 0%);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 900;
    color: var(--bg-dark-end);
    padding-bottom: 3px;
}

/* LAB text next to logo */
.lab-text {
    font-size: 10px;
    color: #E5E5E5;
    letter-spacing: 2px;
    font-weight: 600;
    margin-left: 4px;
    margin-right: 8px;
}

/* Magnet Icon */
.icon-magnet {
    position: relative;
    width: 32px;
    height: 28px;
    border: 3px solid var(--primary);
    border-bottom: none;
    border-radius: 16px 16px 0 0;
}

.icon-magnet::before,
.icon-magnet::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 12px;
    background: var(--primary);
    bottom: -12px;
}

.icon-magnet::before {
    left: 2px;
}

.icon-magnet::after {
    right: 2px;
}

/* Target / Precision Icon */
.icon-target {
    position: relative;
    width: 32px;
    height: 32px;
    border: 3px solid var(--primary);
    border-radius: 50%;
}

.icon-target::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    border: 2px solid var(--primary);
    border-radius: 50%;
}

.icon-target::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* Tool / Engineering Icon */
.icon-tool {
    position: relative;
    width: 28px;
    height: 28px;
    border: 3px solid var(--primary);
    border-radius: 4px;
    transform: rotate(45deg);
}

.icon-tool::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 8px;
    background: var(--primary);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
}

/* Moon / Lunar Icon */
.icon-moon {
    position: relative;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: inset -8px 0 0 0 var(--bg-dark-end);
}

/* Microscope / Research Icon */
.icon-microscope {
    position: relative;
    width: 24px;
    height: 32px;
}

.icon-microscope::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 18px;
    background: var(--primary);
}

.icon-microscope::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 3px;
    background: var(--primary);
}

/* Chart / Data Icon */
.icon-chart {
    position: relative;
    width: 32px;
    height: 28px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 4px;
}

.icon-chart::before,
.icon-chart::after {
    content: '';
    width: 8px;
    background: var(--primary);
}

.icon-chart::before {
    height: 100%;
}

.icon-chart::after {
    height: 60%;
}

/* Signal / Broadcast Icon */
.icon-signal {
    position: relative;
    width: 32px;
    height: 32px;
}

.icon-signal::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-left: 12px solid var(--primary);
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
}

.icon-signal::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 4px;
    transform: translateY(-50%);
    width: 12px;
    height: 3px;
    background: var(--primary);
}

/* Brain / Neural Icon */
.icon-brain {
    position: relative;
    width: 32px;
    height: 28px;
    border: 3px solid var(--primary);
    border-radius: 50% 50% 45% 45%;
}

.icon-brain::before,
.icon-brain::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 12px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    top: 4px;
}

.icon-brain::before {
    left: 4px;
}

.icon-brain::after {
    right: 4px;
}

/* Wave / Frequency Icon */
.icon-wave {
    position: relative;
    width: 32px;
    height: 20px;
}

.icon-wave::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--primary) 10%,
        transparent 20%,
        var(--primary) 30%,
        transparent 40%,
        var(--primary) 50%,
        transparent 60%,
        var(--primary) 70%,
        transparent 80%,
        var(--primary) 90%,
        transparent 100%
    );
}

/* Grid / Power Icon */
.icon-grid {
    position: relative;
    width: 28px;
    height: 28px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 2px;
}

.icon-grid::before,
.icon-grid::after {
    content: '';
    background: var(--primary);
}

.icon-grid::before {
    grid-column: 1 / 4;
    grid-row: 2;
    height: 3px;
}

.icon-grid::after {
    grid-column: 2;
    grid-row: 1 / 4;
    width: 3px;
}

/* Clock / Time Icon */
.icon-clock {
    position: relative;
    width: 32px;
    height: 32px;
    border: 3px solid var(--primary);
    border-radius: 50%;
}

.icon-clock::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform-origin: bottom center;
    width: 2px;
    height: 10px;
    background: var(--primary);
    transform: translate(-50%, -100%);
}

.icon-clock::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform-origin: bottom center;
    width: 2px;
    height: 6px;
    background: var(--primary);
    transform: translate(-50%, -100%) rotate(90deg);
}

/* Silence / Quiet Icon */
.icon-silence {
    position: relative;
    width: 32px;
    height: 32px;
}

.icon-silence::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 8px;
    transform: translateY(-50%);
    width: 12px;
    height: 8px;
    background: var(--primary);
    clip-path: polygon(0% 30%, 100% 0%, 100% 100%, 0% 70%);
}

.icon-silence::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 4px;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background: var(--primary);
    transform: translateY(-50%) rotate(45deg);
    box-shadow: 0 0 0 3px var(--bg-primary);
}

/* Droplet / Water Icon */
.icon-droplet {
    position: relative;
    width: 24px;
    height: 32px;
}

.icon-droplet::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 24px;
    background: var(--primary);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
}

.icon-droplet::after {
    content: '';
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 8px solid var(--primary);
}

/* Volume / Speaker Icon */
.icon-volume {
    position: relative;
    width: 32px;
    height: 28px;
}

.icon-volume::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    background: var(--primary);
    clip-path: polygon(100% 0%, 100% 100%, 0% 70%, 0% 30%);
}

.icon-volume::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 4px;
    transform: translateY(-50%);
    width: 12px;
    height: 18px;
    border: 3px solid var(--primary);
    border-left: none;
    border-radius: 0 12px 12px 0;
}

/* Timer / Stopwatch Icon */
.icon-timer {
    position: relative;
    width: 28px;
    height: 32px;
}

.icon-timer::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 26px;
    border: 3px solid var(--primary);
    border-radius: 50%;
}

.icon-timer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 4px;
    background: var(--primary);
    border-radius: 2px;
}

/* Headphones Icon */
.icon-headphones {
    position: relative;
    width: 32px;
    height: 28px;
}

.icon-headphones::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 20px;
    border: 3px solid var(--primary);
    border-bottom: none;
    border-radius: 14px 14px 0 0;
}

.icon-headphones::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 10px;
    background: linear-gradient(90deg,
        var(--primary) 0%,
        var(--primary) 25%,
        transparent 25%,
        transparent 75%,
        var(--primary) 75%,
        var(--primary) 100%
    );
}

/* Play Button Icon */
.icon-play {
    position: relative;
    width: 32px;
    height: 32px;
    border: 3px solid var(--primary);
    border-radius: 50%;
}

.icon-play::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-left: 12px solid var(--primary);
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
}

/* Lock / Privacy Icon */
.icon-lock {
    position: relative;
    width: 24px;
    height: 28px;
}

.icon-lock::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 12px;
    border: 3px solid var(--primary);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
}

.icon-lock::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 16px;
    background: var(--primary);
    border-radius: 3px;
}

/* Check Circle Icon */
.icon-check-circle {
    position: relative;
    width: 32px;
    height: 32px;
    border: 3px solid var(--primary);
    border-radius: 50%;
}

.icon-check-circle::before {
    content: '';
    position: absolute;
    top: 40%;
    left: 25%;
    width: 6px;
    height: 12px;
    border-right: 3px solid var(--primary);
    border-bottom: 3px solid var(--primary);
    transform: translate(-50%, -50%) rotate(45deg);
}

/* Devices Icon */
.icon-devices {
    position: relative;
    width: 32px;
    height: 28px;
}

.icon-devices::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 18px;
    height: 24px;
    border: 2px solid var(--primary);
    border-radius: 3px;
}

.icon-devices::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 12px;
    height: 16px;
    border: 2px solid var(--primary);
    border-radius: 2px;
}

/* Apple Logo */
.icon-apple-logo {
    position: relative;
    width: 24px;
    height: 28px;
    display: inline-block;
}

.icon-apple-logo::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: 60% 60% 60% 10%;
    transform: rotate(-45deg);
    top: 6px;
    left: 2px;
}

.icon-apple-logo::after {
    content: '';
    position: absolute;
    top: 0;
    right: 6px;
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 3px 3px 0 0;
    transform: rotate(20deg);
}

/* Android Logo */
.icon-android-logo {
    position: relative;
    width: 24px;
    height: 28px;
    display: inline-block;
}

.icon-android-logo::before {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 16px;
    background: var(--primary);
    border-radius: 4px 4px 3px 3px;
}

.icon-android-logo::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 10px;
    background: var(--primary);
    border-radius: 10px 10px 0 0;
}

/* Chrome/Browser Logo */
.icon-chrome {
    position: relative;
    width: 24px;
    height: 24px;
    display: inline-block;
    border: 3px solid var(--primary);
    border-radius: 50%;
}

.icon-chrome::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
}

/* Device Compatibility Container */
.device-compatibility {
    display: flex;
    gap: 16px;
    justify-content: center;
    align-items: center;
    margin-top: 16px;
    opacity: 0.8;
}

/* Hero Stats Compact */
.hero-stats-compact {
    display: flex;
    gap: 12px;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.stat-item-compact {
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-icon-small {
    width: 16px;
    height: 16px;
}

.stat-text-compact {
    font-size: 13px;
    color: #E0E0E0;
    letter-spacing: 1px;
}

.stat-separator {
    color: var(--primary);
    font-size: 14px;
    opacity: 0.5;
}

/* ===== STEP CARD ANIMATIONS ===== */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-step {
    opacity: 0;
    animation: slideInUp 0.6s ease-out forwards;
}

.step-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.step-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(212, 165, 116, 0.15);
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== DOCUMENTATION & LEGAL PAGES ===== */

.docs-section {
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl) 0;
    background: var(--bg-primary);
    min-height: 100vh;
}

.docs-content {
    max-width: 900px;
    margin: 0 auto;
}

.doc-block {
    margin-bottom: var(--spacing-3xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--border);
}

.doc-block:last-child {
    border-bottom: none;
}

.doc-block h2 {
    color: var(--primary);
    font-size: 18px;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-xl);
    text-transform: uppercase;
}

.doc-block h2 i {
    margin-right: var(--spacing-sm);
    color: var(--accent);
}

.doc-block h3 {
    color: var(--text-primary);
    font-size: 15px;
    margin-bottom: var(--spacing-md);
    letter-spacing: 1.5px;
}

.doc-block p {
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Step List */
.step-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.step-item {
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.step-item .step-badge {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--bg-dark-end);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
}

.step-info {
    flex: 1;
}

.step-info h3 {
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    letter-spacing: 1.5px;
}

.step-info p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.step-info ul {
    list-style: none;
    padding-left: 0;
    margin-top: var(--spacing-sm);
}

.step-info ul li {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.step-info ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Interface Grid */
.interface-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.interface-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.interface-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.interface-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.interface-card h3 {
    font-size: 13px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    letter-spacing: 1.5px;
}

.interface-card p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Formula & Example Boxes */
.formula-box {
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.1) 0%, rgba(0, 217, 177, 0.05) 100%);
    border-left: 4px solid var(--primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
}

.formula-box h3 {
    font-size: 14px;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.formula-box code {
    display: block;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: var(--accent);
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin: var(--spacing-sm) 0;
}

.formula-note {
    font-size: 11px;
    color: var(--text-secondary);
    font-style: italic;
}

.example-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.example-box h4 {
    font-size: 13px;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: 1.5px;
}

.calc-step {
    padding: var(--spacing-sm) 0;
    font-size: 12px;
    color: var(--text-secondary);
    border-left: 2px solid var(--border);
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.calc-result {
    background: rgba(0, 217, 177, 0.1);
    border-left: 4px solid var(--accent);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-primary);
}

/* Best Practices Grid */
.best-practices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.practice-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.practice-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.practice-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: var(--spacing-md);
}

.practice-card h3 {
    font-size: 13px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    letter-spacing: 1.5px;
}

.practice-card p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Troubleshooting */
.troubleshooting-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.trouble-item {
    background: var(--bg-secondary);
    border-left: 4px solid rgba(255, 184, 39, 0.5);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.trouble-item h3 {
    font-size: 13px;
    color: #FFB627;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.trouble-item p {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

/* Specs Grid */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    font-size: 12px;
}

.spec-item strong {
    color: var(--text-primary);
}

.spec-item span {
    color: var(--accent);
    font-weight: 600;
}

/* Research Papers */
.research-paper-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.paper-card {
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.paper-card:hover {
    transform: translateX(4px);
    border-color: var(--primary);
}

.paper-icon {
    flex-shrink: 0;
    font-size: 2rem;
    color: var(--primary);
}

.paper-content {
    flex: 1;
}

.paper-content h3 {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1px;
}

.paper-authors {
    font-size: 11px;
    color: var(--primary);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.paper-abstract {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.paper-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 11px;
    color: var(--text-secondary);
}

.paper-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.paper-meta i {
    color: var(--accent);
}

/* Legal Pages */
.legal-list {
    list-style: none;
    padding-left: 0;
}

.legal-list li {
    padding: var(--spacing-sm) 0;
    padding-left: 2rem;
    position: relative;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.legal-list li i {
    position: absolute;
    left: 0;
    top: var(--spacing-sm);
    color: var(--accent);
}

.legal-notice {
    background: rgba(255, 71, 87, 0.05);
    border: 2px solid rgba(255, 71, 87, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.legal-notice p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.legal-notice ul {
    list-style: disc;
    padding-left: 2rem;
    margin: var(--spacing-sm) 0;
}

.legal-notice ul li {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.privacy-note {
    background: rgba(0, 217, 177, 0.05);
    border-left: 4px solid var(--accent);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    margin-top: var(--spacing-lg);
}

.privacy-note i {
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.data-processing-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.data-processing-card h3 {
    font-size: 14px;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.data-processing-card p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.data-processing-card ul {
    list-style: disc;
    padding-left: 2rem;
    margin-top: var(--spacing-sm);
}

.data-processing-card ul li {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.permission-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.permission-item {
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.permission-icon {
    flex-shrink: 0;
    font-size: 2rem;
    color: var(--primary);
}

.permission-content h3 {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1px;
}

.permission-content p {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.responsibility-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.responsibility-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--accent);
}

.responsibility-item i {
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.responsibility-item div {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.responsibility-item strong {
    color: var(--text-primary);
}

.calculation-explanation {
    margin-top: var(--spacing-lg);
}

.calculation-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Responsive */
@media (max-width: 768px) {
    .interface-grid,
    .best-practices-grid,
    .specs-grid {
        grid-template-columns: 1fr;
    }

    .step-item,
    .paper-card,
    .permission-item {
        flex-direction: column;
    }

    .paper-icon,
    .permission-icon {
        font-size: 1.5rem;
    }
}

/* Enhanced Science Section Styles */
.hypothesis-card h4 {
    font-size: 16px !important;
}

.hypothesis-card p {
    font-size: 15px !important;
    line-height: 1.8;
}

.approach-desc {
    font-size: 13px;
    opacity: 0.8;
}

/* Science Feature Cards - Single Row */
.science-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.science-feature-card {
    background: rgba(26, 29, 35, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 165, 116, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all 0.3s ease;
}

.science-feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 12px 32px rgba(212, 165, 116, 0.25);
    background: rgba(26, 29, 35, 0.98);
}

.science-feature-card .feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

.science-feature-card h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
    font-weight: 600;
}

.science-feature-card p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

@media (max-width: 768px) {
    .science-features-grid {
        grid-template-columns: 1fr;
    }
}

/* Remote Magnetometer Connection */
.remote-sensor-option {
    margin-top: var(--spacing-xl);
}

.remote-sensor-card {
    background: rgba(26, 29, 35, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 107, 107, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
}

.remote-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

.remote-icon i:nth-child(2) {
    font-size: 1.5rem;
    color: var(--accent);
}

.remote-sensor-card h4 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    color: #FF6B6B;
}

.remote-sensor-card p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.premium-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(212, 165, 116, 0.1) 100%);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: #FFD700;
    margin-top: var(--spacing-md);
}

.premium-badge i {
    color: #FFD700;
}

/* Usage Statistics Section */
.usage-stats {
    padding: var(--section-padding) 0;
    background: var(--bg-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat-card {
    background: rgba(26, 29, 35, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(212, 165, 116, 0.15);
}

.stat-card.wide {
    grid-column: span 3;
    flex-direction: column;
    align-items: flex-start;
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary);
    flex-shrink: 0;
}

.stat-content h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 0.5rem 0;
    font-family: var(--font-mono);
}

.stat-content p {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
}

.stat-detail {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.stat-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    width: 100%;
}

.stat-header h4 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin: 0;
}

.frequency-breakdown {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.freq-bar {
    width: 100%;
}

.freq-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.freq-name {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

.freq-time {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.freq-progress {
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.freq-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

.freq-fill.gamma {
    background: linear-gradient(90deg, var(--primary) 0%, rgba(212, 165, 116, 0.6) 100%);
}

.freq-fill.beta {
    background: linear-gradient(90deg, var(--accent) 0%, rgba(0, 217, 177, 0.6) 100%);
}

.freq-fill.alpha {
    background: linear-gradient(90deg, #7B68EE 0%, rgba(123, 104, 238, 0.6) 100%);
}

.freq-fill.delta {
    background: linear-gradient(90deg, #4A90E2 0%, rgba(74, 144, 226, 0.6) 100%);
}

.stats-note {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(212, 165, 116, 0.05);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
}

.stats-note i {
    font-size: 1.5rem;
    color: var(--primary);
    flex-shrink: 0;
}

.stats-note p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.stats-note a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.stats-note a:hover {
    text-decoration: underline;
}

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-card.wide {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card.wide {
        grid-column: span 1;
    }
}

/* Enhanced backdrop blur for all science cards */
.result-box {
    background: rgba(26, 29, 35, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.cta-science {
    background: rgba(26, 29, 35, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 165, 116, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

/* Mobile App Showcase Section */
.mobile-showcase {
    padding: calc(var(--section-padding) * 1.5) 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    overflow: hidden;
}

.mobile-showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.mobile-content {
    max-width: 600px;
}

.showcase-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin: var(--spacing-xl) 0;
}

.showcase-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.showcase-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: rgba(26, 29, 35, 0.5);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.showcase-feature:hover {
    border-color: var(--primary);
    transform: translateX(8px);
    background: rgba(26, 29, 35, 0.7);
}

.showcase-feature i {
    font-size: 1.8rem;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.showcase-feature h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
}

.showcase-feature p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* Mobile Device with Bezel */
.mobile-device {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    perspective: 1000px;
}

.phone-bezel {
    position: relative;
    width: 320px;
    height: 650px;
    background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 42px;
    padding: 12px;
    box-shadow: 
        0 0 0 3px rgba(255, 255, 255, 0.1),
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 40px 100px rgba(0, 0, 0, 0.3),
        inset 0 0 6px rgba(255, 255, 255, 0.05);
    animation: phoneFloat 6s ease-in-out infinite;
    transform-style: preserve-3d;
}

@keyframes phoneFloat {
    0%, 100% {
        transform: translateY(0) rotateY(-5deg);
    }
    50% {
        transform: translateY(-20px) rotateY(5deg);
    }
}

.phone-notch {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 160px;
    height: 28px;
    background: #1a1a1a;
    border-radius: 0 0 20px 20px;
    z-index: 10;
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.3),
        inset 0 0 2px rgba(255, 255, 255, 0.1);
}

.phone-notch::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.phone-notch::after {
    content: '';
    position: absolute;
    top: 8px;
    right: 20px;
    width: 10px;
    height: 10px;
    background: radial-gradient(circle, rgba(76, 175, 80, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    box-shadow: 
        0 0 4px rgba(76, 175, 80, 0.5),
        inset 0 0 2px rgba(76, 175, 80, 0.3);
}

.phone-screen {
    position: relative;
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 32px;
    overflow: hidden;
    box-shadow: 
        inset 0 0 0 1px rgba(255, 255, 255, 0.05),
        inset 0 4px 8px rgba(0, 0, 0, 0.3);
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.phone-home-indicator {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    z-index: 10;
}

/* Gloss effect on phone */
.phone-bezel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.1) 0%,
        rgba(255, 255, 255, 0.05) 50%,
        transparent 100%
    );
    border-radius: 42px 42px 0 0;
    pointer-events: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .mobile-showcase-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }

    .mobile-content {
        max-width: 100%;
        text-align: center;
    }

    .showcase-feature {
        justify-content: center;
        text-align: left;
    }

    .phone-bezel {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .mobile-showcase {
        padding: var(--section-padding) 0;
    }

    .phone-bezel {
        width: 280px;
        height: 570px;
        border-radius: 38px;
        padding: 10px;
    }

    .phone-notch {
        width: 140px;
        height: 24px;
        top: 10px;
    }

    .phone-screen {
        border-radius: 28px;
    }

    .showcase-features {
        gap: var(--spacing-md);
    }

    .showcase-feature {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .phone-bezel {
        width: 240px;
        height: 490px;
        border-radius: 32px;
        padding: 8px;
    }

    .phone-notch {
        width: 120px;
        height: 20px;
        top: 8px;
    }

    .phone-screen {
        border-radius: 24px;
    }

    .phone-home-indicator {
        bottom: 14px;
        width: 100px;
    }
}

/* Highlighted Feature Card */
.feature-card.highlight {
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.05) 0%, rgba(0, 217, 177, 0.05) 100%);
    border: 2px solid var(--primary);
    position: relative;
    overflow: visible;
}

.feature-card.highlight::before {
    content: 'NEW';
    position: absolute;
    top: -12px;
    right: 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--bg-primary);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    letter-spacing: 1px;
}

.premium-badge-inline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(212, 165, 116, 0.1) 100%);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: #FFD700;
    margin-top: var(--spacing-md);
}

.premium-badge-inline i {
    color: #FFD700;
}

/* Updated Mobile Device Dimensions */
.phone-bezel {
    width: 340px;
    height: 720px;
    border-radius: 32px;
}

.phone-notch {
    border-radius: 0 0 16px 16px;
}

.phone-screen {
    border-radius: 24px;
}

/* Increased Mobile Showcase Padding */
.mobile-showcase {
    padding: calc(var(--section-padding) * 2) 0;
}

/* Platform Icons */
.platform-icons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.platform-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.platform-icon:hover {
    opacity: 1;
}

.platform-icon i {
    font-size: 2.5rem;
    color: var(--primary);
}

.platform-icon span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Enhanced Hero Stats Sizing */
.hero-stats-compact .stat-text-compact {
    font-size: 1rem !important;
    font-weight: 600 !important;
}

.hero-stats-compact .stat-icon-small {
    font-size: 1.3rem !important;
}

/* Increased Opacity for Hypothesis Cards */
.hypothesis-card {
    background: rgba(26, 29, 35, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.hypothesis-card.nullfield {
    background: rgba(26, 29, 35, 0.95) !important;
}

.hypothesis-card.standard {
    background: rgba(26, 29, 35, 0.95) !important;
}

/* Enhanced Result Box Opacity */
.result-box {
    background: rgba(26, 29, 35, 0.98) !important;
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(212, 165, 116, 0.3);
}

.math-formula {
    color: var(--primary) !important;
    font-weight: 700 !important;
    font-size: 1.1rem !important;
}

/* CTA Science as Simple Button */
.cta-science {
    background: transparent !important;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    border-radius: 0;
    padding: var(--spacing-2xl) 0 0 0;
    text-align: center;
    margin-top: var(--spacing-2xl);
}

.cta-science .btn-large {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.cta-note {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .phone-bezel {
        width: 300px;
        height: 620px;
        border-radius: 28px;
    }
    
    .phone-screen {
        border-radius: 20px;
    }
    
    .platform-icons {
        gap: 1rem;
    }
    
    .platform-icon i {
        font-size: 2rem;
    }
}

/* Mobile Showcase Section - Matching About Section Padding */
.mobile-showcase {
    padding: var(--section-padding) 0 !important;
    margin-top: calc(var(--section-padding) * 1.5);
    margin-bottom: calc(var(--section-padding) * 0.5);
}

/* Title with Inline Platform Icons */
.title-with-icons {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: var(--spacing-lg);
}

.platform-icons-inline {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.platform-icons-inline i {
    font-size: 1.8rem;
    color: var(--primary);
    opacity: 0.8;
    transition: all 0.3s ease;
}

.platform-icons-inline i:hover {
    opacity: 1;
    transform: translateY(-2px);
}

/* Remove old platform icons styles */
.platform-icons {
    display: none;
}

@media (max-width: 768px) {
    .title-with-icons {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .platform-icons-inline {
        gap: 0.75rem;
    }
    
    .platform-icons-inline i {
        font-size: 1.5rem;
    }

    .mobile-showcase {
        margin-top: var(--section-padding);
    }
}

/* Fix Mobile Showcase Spacing - Prevent Hero Overlap */
.mobile-showcase {
    padding-top: calc(var(--section-padding) * 2) !important;
    padding-bottom: calc(var(--section-padding) * 1.5) !important;
    margin-top: 0 !important;
    position: relative;
    z-index: 2;
    background: var(--bg-primary);
}

.hero {
    position: relative;
    z-index: 1;
    margin-bottom: 0;
}

.hero-wave {
    margin-bottom: 0;
}

/* Ensure phone doesn't go under hero */
.phone-bezel {
    position: relative;
    z-index: 3;
}

@media (max-width: 768px) {
    .mobile-showcase {
        padding-top: var(--section-padding) !important;
        padding-bottom: var(--section-padding) !important;
    }
}
/* CRITICAL FIX: Force spacing between hero and mobile showcase */
section.mobile-showcase {
    margin-top: 120px !important;
    padding-top: 80px !important;
    padding-bottom: 80px !important;
    background: var(--bg-primary) !important;
    position: relative !important;
    z-index: 10 !important;
}

.hero {
    margin-bottom: 0 !important;
    position: relative !important;
    z-index: 1 !important;
}

@media (max-width: 768px) {
    section.mobile-showcase {
        margin-top: 60px !important;
        padding-top: 40px !important;
        padding-bottom: 40px !important;
    }
}

/* Fix Mobile Showcase Background Color Match */
section.mobile-showcase {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%) !important;
}

/* Ensure seamless transition from hero */
.hero {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.about {
    background: var(--bg-primary) !important;
}

/* Remove any pseudo-element backgrounds that might be causing grey padding */
section.mobile-showcase::before,
section.mobile-showcase::after {
    display: none !important;
    content: none !important;
}

.mobile-showcase::before,
.mobile-showcase::after {
    display: none !important;
    content: none !important;
}

/* Ensure container has no conflicting background */
.mobile-showcase .container {
    background: transparent !important;
}

/* FORCE mobile-showcase to match exact hero background */
section.mobile-showcase {
    background: #0A0C10 !important;
}

.hero {
    background: #0A0C10 !important;
}

.about {
    background: #0A0C10 !important;
}

/* Remove any section-level backgrounds that might override */
section {
    background: transparent;
}

/* Fix Feature Card Gradient Effects - Hide by Default */
.feature-card::before {
    opacity: 0 !important;
    transition: opacity 0.3s ease !important;
}

.feature-card:hover::before {
    opacity: 1 !important;
}

.feature-card::after {
    opacity: 0 !important;
    transition: opacity 0.3s ease !important;
}

.feature-card:hover::after {
    opacity: 1 !important;
}

/* Fix Cross-Device Sensor Sync (highlight) card */
.feature-card.highlight::before {
    opacity: 0 !important;
    left: 0 !important;
    right: auto !important;
    transform: none !important;
}

.feature-card.highlight:hover::before {
    opacity: 1 !important;
}

.feature-card.highlight::after {
    opacity: 0 !important;
}

.feature-card.highlight:hover::after {
    opacity: 1 !important;
}

/* Ensure gradients stay within card boundaries */
.feature-card {
    overflow: hidden !important;
    position: relative !important;
}

.features-grid {
    overflow: visible !important;
}

/* CRITICAL FIX: Contain gradient effects within cards */
.feature-card {
    overflow: hidden !important;
}

/* Allow "NEW" badge to show outside highlight card */
.feature-card.highlight {
    overflow: visible !important;
}

/* Remove gradient sweep from highlight card since it has different ::before */
.feature-card.highlight::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(212, 165, 116, 0.1),
        transparent
    );
    transition: left 0.5s ease;
    z-index: 0;
}

.feature-card.highlight:hover::after {
    left: 100%;
}

/* Ensure content stays above gradient effects */
.feature-card > * {
    position: relative;
    z-index: 1;
}

.feature-card.highlight > * {
    position: relative;
    z-index: 1;
}

/* Fix Hero Video Background Coverage */
.hero {
    position: relative !important;
    overflow: hidden !important;
    min-height: 100vh !important;
}

.hero-video {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    z-index: 0 !important;
}

.hero .container {
    position: relative !important;
    z-index: 2 !important;
}

/* Ensure navbar is above hero video */
.navbar {
    position: relative !important;
    z-index: 100 !important;
    background: rgba(15, 17, 21, 0.95) !important;
    backdrop-filter: blur(10px) !important;
}

/* Remove video showing under navbar */
body {
    background: var(--bg-primary) !important;
}

/* Normalize Cross-Device Sensor Sync Hover Effect */
.feature-card.highlight:hover {
    transform: translateY(-4px) !important;
    border-color: var(--primary) !important;
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.05) 0%, rgba(0, 217, 177, 0.05) 100%) !important;
    box-shadow: 0 8px 24px rgba(212, 165, 116, 0.15) !important;
}

/* Remove any conflicting hover backgrounds */
.feature-card.highlight:hover::after {
    opacity: 0.3 !important;
}

/* Ensure text stays readable on hover */
.feature-card.highlight:hover h3,
.feature-card.highlight:hover p,
.feature-card.highlight:hover li {
    color: inherit !important;
    opacity: 1 !important;
}

/* Sticky/Floating Navbar */
.navbar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 1000 !important;
    background: rgba(15, 17, 21, 0.95) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3) !important;
}

/* Add padding to body to account for fixed navbar */
body {
    padding-top: 70px !important;
}

/* Go to Top Button */
.go-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border: none;
    border-radius: 50%;
    color: var(--bg-primary);
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}

.go-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.go-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(212, 165, 116, 0.4);
}

.go-to-top:active {
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .go-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
    }
}

/* Profile Menu */
.profile-menu {
    position: relative;
    margin-left: 1rem;
}

.profile-btn {
    background: transparent;
    border: 2px solid var(--primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-btn:hover {
    background: var(--primary);
    color: var(--bg-primary);
    transform: scale(1.05);
}

.profile-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.profile-menu.active .profile-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background: rgba(212, 165, 116, 0.1);
    color: var(--primary);
}

.dropdown-item i {
    font-size: 1rem;
    width: 20px;
}

@media (max-width: 768px) {
    .profile-menu {
        margin-left: 0;
        margin-top: 1rem;
    }

    .profile-btn {
        width: 100%;
        border-radius: var(--radius-md);
        justify-content: flex-start;
        padding: 0.75rem 1rem;
        gap: 0.75rem;
    }

    .profile-btn::after {
        content: 'Account';
        font-size: 1rem;
    }

    .profile-dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        margin-top: 0.5rem;
        display: none;
    }

    .profile-menu.active .profile-dropdown {
        display: block;
    }
}