/* =====================================
   Antigravity-Style Design System
   eroomworks - eroom.ai.kr
   ===================================== */
:root {
    --color-bg: #F8F9FA;
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-text: #1A1A2E;
    --color-text-secondary: #64748B;
    --color-accent: #4285F4;
    --color-accent-light: rgba(66, 133, 244, 0.08);
    --color-glow: rgba(66, 133, 244, 0.15);
    --color-card: #F1F3F5;
    --color-card-hover: #E8ECF0;
    --color-hero-bg: #0F172A;
    --color-cyan: #06B6D4;
    --color-purple: #7C3AED;
    --color-green: #10B981;
    --color-red: #EF4444;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-xl: 48px;

    --shadow-soft: 0 2px 20px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.1);

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =====================================
   Global Styles
   ===================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* =====================================
   Blue Glow Frame (Antigravity signature)
   ===================================== */
.glow-frame {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 9999;
    box-shadow:
        inset 0 0 80px rgba(66, 133, 244, 0.08),
        inset 0 0 200px rgba(66, 133, 244, 0.04);
}

/* =====================================
   Navigation
   ===================================== */
.navbar {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 1100px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0;
}

.nav-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 10px;
}

.logo {
    height: 38px;
    width: auto;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.brand-sub {
    font-size: 0.6rem;
    font-weight: 500;
    color: var(--color-cyan);
    letter-spacing: 0.06em;
}

.nav-kr-brand {
    font-family: 'Black Han Sans', sans-serif;
    font-size: 1.65rem;
    font-weight: 400;
    letter-spacing: 0.45em;
    background: linear-gradient(135deg, #06B6D4, #7C3AED, #3B82F6);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease-in-out infinite;
    margin: 0 auto;
    filter: drop-shadow(0 0 8px rgba(6, 182, 212, 0.3));
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    letter-spacing: -0.01em;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* =====================================
   Hero Section
   ===================================== */
.hero {
    padding: 100px 24px 60px;
    display: flex;
    justify-content: center;
}

.hero-dark-container {
    position: relative;
    width: 100%;
    max-width: 1100px;
    min-height: 580px;
    background:
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(6, 182, 212, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse 50% 30% at 20% 60%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, #0B1120 0%, #111827 40%, #0F172A 100%);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* Floating glow orbs */
.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    opacity: 0.4;
}

.hero-orb-1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.6), transparent 70%);
    top: -60px;
    right: -40px;
    animation: orbFloat1 8s ease-in-out infinite;
}

.hero-orb-2 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.5), transparent 70%);
    bottom: -40px;
    left: -30px;
    animation: orbFloat2 10s ease-in-out infinite;
}

.hero-orb-3 {
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.4), transparent 70%);
    top: 40%;
    left: 50%;
    animation: orbFloat3 12s ease-in-out infinite;
}

@keyframes orbFloat1 {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(-40px, 30px) scale(1.1);
    }

    66% {
        transform: translate(20px, -20px) scale(0.9);
    }
}

@keyframes orbFloat2 {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -40px) scale(1.15);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.85);
    }
}

@keyframes orbFloat3 {

    0%,
    100% {
        transform: translate(-50%, 0) scale(1);
        opacity: 0.3;
    }

    50% {
        transform: translate(-50%, -30px) scale(1.2);
        opacity: 0.5;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 60px 40px;
    color: var(--color-white);
}

.hero-eyebrow {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 24px;
    color: rgba(255, 255, 255, 0.4);
}

/* Animated gradient title */
.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg,
            #FFFFFF 0%,
            #06B6D4 25%,
            #FFFFFF 50%,
            #A78BFA 75%,
            #FFFFFF 100%);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 6s ease-in-out infinite;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 28px;
}

.hero-divisions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.division-tag {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--color-cyan);
    text-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
    transition: var(--transition);
}

.division-tag:hover {
    text-shadow: 0 0 30px rgba(6, 182, 212, 0.8);
    transform: scale(1.05);
}

.division-dot {
    color: rgba(255, 255, 255, 0.2);
    font-size: 1.2rem;
}

.hero-cta {
    display: flex;
    gap: 14px;
    justify-content: center;
}

/* Scroll indicator */
.scroll-hint {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 1;
}

.scroll-hint span {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.3);
}

.scroll-line {
    width: 1px;
    height: 32px;
    background: linear-gradient(to bottom, rgba(6, 182, 212, 0.6), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

    0%,
    100% {
        opacity: 0.3;
        transform: scaleY(0.6);
    }

    50% {
        opacity: 1;
        transform: scaleY(1);
    }
}

/* =====================================
   Buttons
   ===================================== */
.btn {
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
}

.btn-primary {
    background: var(--color-white);
    color: var(--color-text);
}

.btn-primary:hover {
    background: #F1F3F5;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* =====================================
   Section Headers
   ===================================== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-eyebrow {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.03em;
    color: var(--color-text);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-top: 12px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

/* =====================================
   Divisions Section
   ===================================== */
.division-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.division-card {
    background: var(--color-white);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}

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

.division-card-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.division-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.division-card p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.division-features {
    list-style: none;
}

.division-features li {
    padding: 6px 0;
    font-size: 0.88rem;
    color: var(--color-text);
    position: relative;
    padding-left: 16px;
}

.division-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-cyan);
    font-weight: 700;
}

/* =====================================
   Solution Section
   ===================================== */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.comparison-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.card-label {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 24px;
    color: var(--color-text-secondary);
}

.comparison-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.problem-item {
    padding: 12px 16px;
    background: #FEF2F2;
    border-radius: var(--radius-sm);
    color: #991B1B;
    font-size: 0.92rem;
}

.problem-item::before {
    content: '✕ ';
    font-weight: 700;
}

.solution-item {
    padding: 12px 16px;
    background: #F0FDF4;
    border-radius: var(--radius-sm);
    color: #166534;
    font-size: 0.92rem;
}

.solution-item::before {
    content: '✓ ';
    font-weight: 700;
}

/* =====================================
   Scenarios Section
   ===================================== */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.scenario-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}

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

.scenario-thumb {
    height: 200px;
    overflow: hidden;
}

.scenario-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.scenario-card:hover .scenario-thumb img {
    transform: scale(1.05);
}

.scenario-body {
    padding: 28px;
}

.scenario-icon {
    font-size: 1.5rem;
}

.scenario-body h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 8px 0;
    letter-spacing: -0.02em;
}

.scenario-body p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* =====================================
   Demo Videos Section
   ===================================== */
.demos {
    background: var(--color-white);
    border-radius: 0;
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.demo-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}

.demo-card:hover {
    box-shadow: var(--shadow-hover);
}

.video-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: var(--color-hero-bg);
    overflow: hidden;
}

.demo-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: var(--transition);
    cursor: pointer;
}

.video-overlay.playing {
    opacity: 0;
    pointer-events: none;
}

.play-button {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(12px);
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: var(--color-white);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    padding-left: 4px;
}

.play-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.demo-info {
    padding: 24px;
}

.demo-info h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.demo-info p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* =====================================
   Technology Section
   ===================================== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.tech-card {
    background: var(--color-white);
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}

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

.tech-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.tech-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.tech-card p {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* =====================================
   Patent Section
   ===================================== */
.patent {
    background: var(--color-bg);
}

.patent-container {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 64px 48px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    text-align: center;
}

.patent-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 40px;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.patent-highlights {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.highlight-chip {
    background: var(--color-bg);
    padding: 10px 20px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text);
    border: 1px solid rgba(0, 0, 0, 0.06);
}

/* =====================================
   Contact Section
   ===================================== */
.contact {
    background: var(--color-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.contact-info-card {
    background: var(--color-hero-bg);
    color: var(--color-white);
    padding: 48px 36px;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.info-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.info-icon {
    font-size: 1.5rem;
}

.info-row div {
    display: flex;
    flex-direction: column;
}

.info-row strong {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 2px;
}

.info-row span,
.info-row a {
    font-size: 1rem;
    color: var(--color-white);
    text-decoration: none;
}

.info-row a:hover {
    color: var(--color-cyan);
}

.contact-form-card {
    background: var(--color-bg);
    padding: 48px 36px;
    border-radius: var(--radius-lg);
}

.contact-form-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.form-group {
    margin-bottom: 14px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 0, 0, 0.1);
    background: var(--color-white);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-secondary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.08);
}

.contact .btn-primary {
    background: var(--color-text);
    color: var(--color-white);
    margin-top: 8px;
}

.contact .btn-primary:hover {
    background: #333;
}

/* =====================================
   Footer
   ===================================== */
.footer {
    background: var(--color-bg);
    padding: 64px 0 32px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 48px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.footer-brand-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.footer-logo {
    height: 40px;
    width: auto;
}

.footer-logo {
    height: 40px;
    width: auto;
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-top: 12px;
}

.footer-links {
    display: flex;
    gap: 64px;
}

.footer-col h4 {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.8rem;
}

/* =====================================
   Animations
   ===================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in-delay-1 {
    animation: fadeInUp 0.6s ease 0.15s forwards;
    opacity: 0;
}

.fade-in-delay-2 {
    animation: fadeInUp 0.6s ease 0.3s forwards;
    opacity: 0;
}

.fade-in-delay-3 {
    animation: fadeInUp 0.6s ease 0.45s forwards;
    opacity: 0;
}

.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* =====================================
   Responsive Design
   ===================================== */
@media (max-width: 900px) {

    .division-grid,
    .tech-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        top: 8px;
        width: calc(100% - 24px);
        padding: 10px 16px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        padding: 16px 24px;
        flex-direction: column;
        gap: 12px;
        box-shadow: var(--shadow-card);
        margin-top: 8px;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        padding: 80px 16px 40px;
    }

    .hero-dark-container {
        min-height: 420px;
        border-radius: var(--radius-lg);
    }

    .hero-content {
        padding: 40px 20px;
    }

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

    .hero-cta .btn {
        width: 100%;
        max-width: 260px;
    }

    section {
        padding: 64px 0;
    }

    .comparison-grid,
    .scenario-grid,
    .demo-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .patent-container {
        padding: 40px 24px;
    }

    .patent-stats {
        gap: 24px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 32px;
    }

    .footer-links {
        gap: 40px;
    }
}