/* ==========================================================================
   Third Wave Trivia - Landing Page Styles
   Aesthetic: Scholastic Utopian - Early Internet Wonder meets Academic Curiosity
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables - Design Tokens
   -------------------------------------------------------------------------- */
:root {
    /* Typography */
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'Lora', Georgia, serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    /* Colors - Scholastic Utopian Palette */
    --color-sky-deep: #1a3a4a;
    --color-sky-mid: #2d5a6b;
    --color-sky-light: #4a8fa4;
    --color-sky-soft: #89b8c9;
    --color-sky-pale: #c5dde6;

    --color-cream: #faf7f2;
    --color-cream-warm: #f5ebe0;
    --color-paper: #fdf8f3;
    --color-paper-aged: #f0e6d8;

    --color-gold: #c9956c;
    --color-gold-light: #ddb892;
    --color-copper: #b87333;

    --color-ink: #1a2a3a;
    --color-ink-light: #3d4f5f;
    --color-ink-muted: #6b7c8c;

    /* Gradients */
    --gradient-sky: linear-gradient(135deg, #1a3a4a 0%, #2d5a6b 30%, #4a8fa4 70%, #89b8c9 100%);
    --gradient-sky-soft: linear-gradient(180deg, #4a8fa4 0%, #89b8c9 50%, #c5dde6 100%);
    --gradient-warm: linear-gradient(135deg, #faf7f2 0%, #f5ebe0 100%);
    --gradient-paper: linear-gradient(180deg, #fdf8f3 0%, #f5ebe0 100%);

    /* Shadows */
    --shadow-soft: 0 4px 20px rgba(26, 58, 74, 0.08);
    --shadow-medium: 0 8px 30px rgba(26, 58, 74, 0.12);
    --shadow-strong: 0 12px 40px rgba(26, 58, 74, 0.16);
    --shadow-glow: 0 0 40px rgba(74, 143, 164, 0.15);

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

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-medium: 300ms ease;
    --transition-slow: 500ms ease;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-ink);
    background: var(--color-cream);
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) var(--space-lg);
    transition: all var(--transition-medium);
}

.nav.scrolled {
    background: rgba(250, 247, 242, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-soft);
    padding: var(--space-sm) var(--space-lg);
}

.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1.25rem;
    color: var(--color-cream);
    transition: color var(--transition-fast);
}

.nav.scrolled .nav-logo {
    color: var(--color-ink);
}

.logo-icon {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-gold);
}

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

.nav-link {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    transition: color var(--transition-fast);
}

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

.nav.scrolled .nav-link {
    color: var(--color-ink-light);
}

.nav.scrolled .nav-link:hover {
    color: var(--color-sky-light);
}

.nav-cta {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.6rem 1.25rem;
    background: var(--color-gold);
    color: white;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--color-copper);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-cream);
    transition: all var(--transition-fast);
}

.nav.scrolled .nav-toggle span {
    background: var(--color-ink);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-sky-deep);
    z-index: 99;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-link {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-cream);
    opacity: 0.9;
}

.mobile-link:hover {
    opacity: 1;
    color: var(--color-gold);
}

.mobile-cta {
    margin-top: var(--space-md);
    padding: 1rem 2rem;
    background: var(--color-gold);
    color: white;
    font-family: var(--font-body);
    font-weight: 600;
    border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-3xl);
    padding: calc(80px + var(--space-3xl)) var(--space-lg) var(--space-3xl);
    background: var(--gradient-sky);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(201, 149, 108, 0.4) 0%, transparent 70%);
    top: -200px;
    right: -100px;
    animation: float-orb 20s ease-in-out infinite;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(137, 184, 201, 0.5) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    animation: float-orb 15s ease-in-out infinite reverse;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(197, 221, 230, 0.3) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse-orb 10s ease-in-out infinite;
}

@keyframes float-orb {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

@keyframes pulse-orb {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.5; transform: translate(-50%, -50%) scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    margin-left: auto;
    padding-left: var(--space-lg);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-cream);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-gold);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    color: var(--color-cream);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.title-accent {
    display: block;
    font-style: italic;
    font-weight: 300;
    color: var(--color-gold-light);
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-xl);
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.9rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-gold);
    color: white;
    box-shadow: 0 4px 15px rgba(201, 149, 108, 0.3);
}

.btn-primary:hover {
    background: var(--color-copper);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(201, 149, 108, 0.4);
}

.btn-primary svg {
    transition: transform var(--transition-fast);
}

.btn-primary:hover svg {
    transform: translateX(3px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-cream);
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--color-cream);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-large {
    padding: 1.1rem 2rem;
    font-size: 1rem;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-cream);
}

.stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.02em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    z-index: 2;
    height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-card {
    position: absolute;
    background: var(--color-paper);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-strong);
    transition: transform var(--transition-medium);
}

.visual-card.card-1 {
    width: 320px;
    padding: var(--space-lg);
    top: 20%;
    left: 10%;
    transform: rotate(-3deg);
    z-index: 3;
    animation: float-card 6s ease-in-out infinite;
}

.card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-sky-light);
    color: white;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
}

.card-text {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-ink);
}

.visual-card.card-2 {
    width: 200px;
    padding: var(--space-md);
    top: 55%;
    right: 15%;
    transform: rotate(4deg);
    z-index: 2;
    animation: float-card 7s ease-in-out infinite reverse;
}

.card-category {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--color-ink-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.card-answer {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 500;
    color: var(--color-sky-mid);
}

.visual-card.card-3 {
    width: 120px;
    padding: var(--space-md);
    top: 10%;
    right: 25%;
    transform: rotate(8deg);
    z-index: 1;
    text-align: center;
    animation: float-card 5s ease-in-out infinite;
    animation-delay: -2s;
}

.card-emoji {
    font-family: var(--font-mono);
    font-size: 2rem;
    color: var(--color-gold);
    margin-bottom: var(--space-xs);
}

.card-points {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-gold);
}

@keyframes float-card {
    0%, 100% { transform: rotate(var(--rotation, 0deg)) translateY(0); }
    50% { transform: rotate(var(--rotation, 0deg)) translateY(-10px); }
}

.card-1 { --rotation: -3deg; }
.card-2 { --rotation: 4deg; }
.card-3 { --rotation: 8deg; }

/* --------------------------------------------------------------------------
   Philosophy Section
   -------------------------------------------------------------------------- */
.philosophy {
    position: relative;
    background: linear-gradient(135deg, #3d6b7a 0%, #4a8fa4 50%, #6ba3b5 100%);
    padding: var(--space-3xl) var(--space-lg);
    text-align: center;
    overflow: hidden;
}

.philosophy::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(201, 149, 108, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.philosophy::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
}

.philosophy-inner {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.philosophy-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gold-light);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
}

.philosophy-quote {
    position: relative;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 300;
    font-style: italic;
    line-height: 1.6;
    color: var(--color-cream);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.philosophy-quote::before {
    content: '"';
    position: absolute;
    top: -0.5em;
    left: -0.5em;
    font-family: var(--font-display);
    font-size: 4rem;
    font-style: normal;
    color: rgba(255, 255, 255, 0.1);
    line-height: 1;
}

.philosophy-decoration {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.philosophy-decoration span {
    width: 8px;
    height: 8px;
    background: var(--color-gold);
    border-radius: 50%;
    opacity: 0.6;
}

.philosophy-decoration span:nth-child(2) {
    opacity: 0.8;
    width: 10px;
    height: 10px;
}

/* --------------------------------------------------------------------------
   Features Section
   -------------------------------------------------------------------------- */
.features {
    background: var(--gradient-paper);
    padding: var(--space-3xl) var(--space-lg);
}

.features-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-3xl);
}

.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-sky-light);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--space-md);
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-ink-light);
    line-height: 1.7;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: var(--space-xl);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    transition: all var(--transition-medium);
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.feature-card-highlight {
    background: linear-gradient(135deg, var(--color-sky-deep) 0%, var(--color-sky-mid) 100%);
}

.feature-card-highlight .feature-title,
.feature-card-highlight .feature-description {
    color: white;
}

.feature-card-highlight .feature-description {
    opacity: 0.9;
}

.feature-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: 0.3rem 0.75rem;
    background: var(--color-gold);
    color: white;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 100px;
}

.feature-icon-wrap {
    margin-bottom: var(--space-lg);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-sky-pale);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.feature-card-highlight .feature-icon {
    background: rgba(255, 255, 255, 0.15);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--color-sky-mid);
}

.feature-card-highlight .feature-icon svg {
    stroke: white;
}

.feature-card:hover .feature-icon {
    transform: scale(1.05);
}

.feature-content {
    flex: 1;
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--space-sm);
}

.feature-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-ink-light);
    margin-bottom: var(--space-md);
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.tag {
    padding: 0.25rem 0.6rem;
    background: var(--color-cream);
    color: var(--color-ink-muted);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    border-radius: 4px;
}

.feature-card-highlight .tag {
    background: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
}

.feature-arrow {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-top: auto;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-cream-warm);
}

.feature-card-highlight .feature-arrow {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.feature-arrow svg {
    stroke: var(--color-gold);
    transition: transform var(--transition-fast);
}

.feature-card-highlight .feature-arrow svg {
    stroke: var(--color-gold-light);
}

.feature-card:hover .feature-arrow svg {
    transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   How It Works Section
   -------------------------------------------------------------------------- */
.how-it-works {
    background: var(--color-cream);
    padding: var(--space-3xl) var(--space-lg);
}

.how-inner {
    max-width: 1000px;
    margin: 0 auto;
}

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

.step {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--space-xl);
    align-items: center;
    padding: var(--space-xl);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-medium);
}

.step.visible {
    opacity: 1;
    transform: translateY(0);
}

.step:hover {
    box-shadow: var(--shadow-medium);
}

.step-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 300;
    color: var(--color-sky-pale);
    line-height: 1;
}

.step-content {
    max-width: 500px;
}

.step-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--space-xs);
}

.step-description {
    font-size: 0.95rem;
    color: var(--color-ink-light);
    line-height: 1.7;
}

.step-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-cream);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.step-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--color-sky-light);
}

.step:hover .step-icon {
    background: var(--color-sky-light);
}

.step:hover .step-icon svg {
    stroke: white;
}

.step-connector {
    height: 40px;
    color: var(--color-sky-pale);
    display: flex;
    justify-content: center;
}

.step-connector svg {
    width: 100px;
    height: 40px;
}

/* --------------------------------------------------------------------------
   Differentiator Section
   -------------------------------------------------------------------------- */
.differentiator {
    background: var(--gradient-sky);
    padding: var(--space-3xl) var(--space-lg);
    overflow: hidden;
}

.diff-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.diff-content {
    color: white;
}

.diff-content .section-label {
    color: var(--color-gold-light);
}

.diff-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-cream);
    margin-bottom: var(--space-md);
}

.diff-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.diff-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.diff-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.diff-check {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(201, 149, 108, 0.2);
    border-radius: 50%;
}

.diff-check svg {
    width: 14px;
    height: 14px;
    stroke: var(--color-gold);
}

.diff-visual {
    display: flex;
    justify-content: center;
}

.diff-card {
    width: 100%;
    max-width: 400px;
    padding: var(--space-xl);
    background: var(--color-paper);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-strong);
    transform: rotate(2deg);
    opacity: 0;
    transition: all var(--transition-medium);
}

.diff-card.visible {
    opacity: 1;
}

.diff-card:hover {
    transform: rotate(0deg) scale(1.02);
}

.diff-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.diff-card-category {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--color-sky-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.diff-card-round {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-ink-muted);
}

.diff-card-question {
    font-family: var(--font-body);
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--color-ink);
    margin-bottom: var(--space-lg);
}

.diff-card-footer {
    padding-top: var(--space-md);
    border-top: 1px dashed var(--color-cream-warm);
}

.diff-card-hint {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-style: italic;
    color: var(--color-ink-muted);
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta {
    position: relative;
    background: var(--color-cream);
    padding: var(--space-3xl) var(--space-lg);
    overflow: hidden;
}

.cta-inner {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-3xl);
    background: var(--gradient-sky);
    border-radius: var(--radius-xl);
    text-align: center;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.cta-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 400;
    color: var(--color-cream);
    margin-bottom: var(--space-md);
}

.cta-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-xl);
}

.cta-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background: var(--color-ink);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-3xl) var(--space-lg) var(--space-xl);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-3xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--space-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1.25rem;
    color: var(--color-cream);
    margin-bottom: var(--space-md);
}

.footer-tagline {
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 280px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-heading {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-cream);
    margin-bottom: var(--space-xs);
}

.footer-column a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-gold);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copyright {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal a:hover {
    color: var(--color-gold);
}

/* --------------------------------------------------------------------------
   Responsive Styles
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        min-height: auto;
        padding-top: 120px;
    }

    .hero-content {
        max-width: 600px;
        margin: 0 auto;
        padding: 0;
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .features-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .diff-inner {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .diff-content {
        text-align: center;
    }

    .diff-list {
        max-width: 400px;
        margin: 0 auto;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .footer-brand {
        text-align: center;
    }

    .footer-tagline {
        max-width: none;
    }
}

@media (max-width: 768px) {
    :root {
        --space-3xl: 4rem;
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .mobile-menu {
        display: flex;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }

    .stat-divider {
        width: 60px;
        height: 1px;
    }

    .step {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-md);
    }

    .step-number {
        font-size: 2rem;
    }

    .step-connector {
        display: none;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-3xl: 3rem;
    }

    .nav {
        padding: var(--space-sm);
    }

    .hero {
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
    }

    .philosophy-quote {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .feature-card {
        padding: var(--space-lg);
    }

    .step {
        padding: var(--space-lg);
    }

    .diff-card {
        padding: var(--space-lg);
    }

    .cta-inner {
        padding: var(--space-xl);
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   Animation Delays for Staggered Reveals
   -------------------------------------------------------------------------- */
.feature-card:nth-child(1) { transition-delay: 0ms; }
.feature-card:nth-child(2) { transition-delay: 100ms; }
.feature-card:nth-child(3) { transition-delay: 200ms; }

.step:nth-child(1) { transition-delay: 0ms; }
.step:nth-child(3) { transition-delay: 100ms; }
.step:nth-child(5) { transition-delay: 200ms; }

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
    .nav,
    .hero-bg,
    .mobile-menu {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}