/* ============================================
   KC QR Menü — Landing Page
   Colors inspired by kocancreative.com
   ============================================ */

:root {
    --bg-primary: #050508;
    --bg-secondary: #0a0a10;
    --bg-tertiary: #111118;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --accent-primary: #6366f1;
    --accent-primary-light: #818cf8;
    --accent-secondary: #8b5cf6;
    --accent-warm: #f59e0b;
    --accent-warm-light: #fbbf24;

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 60px rgba(99, 102, 241, 0.15);

    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;

    --container-max: 1200px;
    --section-padding: 120px;
}

/* 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);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Gradient Text
   ============================================ */
.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, var(--accent-warm) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    border-radius: var(--radius-md);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--accent-primary-light);
    border: 1px solid var(--accent-primary);
    padding: 12px 24px;
    font-size: 14px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

/* ============================================
   Navbar
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s;
}

.navbar.scrolled {
    background: rgba(5, 5, 8, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 12px 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-highlight {
    color: var(--accent-primary-light);
}

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

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width 0.3s;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

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

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
    border-radius: 2px;
}

/* ============================================
   Hero
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

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

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(99, 102, 241, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse 60% 50% at 80% 50%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 70%);
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}

.hero-glow-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-primary);
    top: -100px;
    left: 10%;
    opacity: 0.06;
}

.hero-glow-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    bottom: 10%;
    right: 5%;
    opacity: 0.05;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px 6px 10px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-primary-light);
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-primary);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-subtitle strong {
    color: var(--text-primary);
    font-weight: 600;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-light);
}

/* Hero Mockup */
.hero-visual {
    position: relative;
}

.hero-mockup {
    position: relative;
}

.mockup-browser {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.browser-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

.browser-dots {
    display: flex;
    gap: 6px;
}

.browser-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.browser-dots span:first-child { background: #ef4444; }
.browser-dots span:nth-child(2) { background: #f59e0b; }
.browser-dots span:last-child { background: #10b981; }

.browser-url {
    flex: 1;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    font-size: 12px;
    color: var(--text-muted);
}

.browser-content {
    padding: 20px;
}

.mock-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.mock-logo-area {
    width: 80px;
    height: 24px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 4px;
    opacity: 0.6;
}

.mock-search {
    width: 140px;
    height: 28px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
}

.mock-categories {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    overflow: hidden;
}

.mock-cat {
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 11px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    white-space: nowrap;
}

.mock-cat.active {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
}

.mock-products {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.mock-product {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 10px;
}

.mock-img {
    width: 100%;
    height: 60px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.1));
    border-radius: 6px;
    margin-bottom: 8px;
}

.mock-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mock-name {
    width: 60%;
    height: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.mock-price {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-warm);
}

/* Phone mockup */
.mockup-phone {
    position: absolute;
    bottom: -20px;
    right: -30px;
    width: 160px;
}

.phone-frame {
    background: var(--bg-card);
    border: 2px solid var(--border-light);
    border-radius: 24px;
    padding: 8px;
    box-shadow: var(--shadow-lg);
}

.phone-notch {
    width: 60px;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin: 4px auto 8px;
}

.phone-content {
    padding: 8px;
}

.phone-header {
    width: 70%;
    height: 12px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 4px;
    opacity: 0.5;
    margin-bottom: 12px;
}

.phone-item {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
    padding: 6px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
}

.phone-item-img {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(239, 68, 68, 0.15));
    flex-shrink: 0;
}

.phone-item-info {
    flex: 1;
}

.phone-item-name {
    width: 75%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    margin-bottom: 4px;
}

.phone-item-price {
    font-size: 10px;
    font-weight: 700;
    color: var(--accent-warm);
}

.phone-btn {
    width: 100%;
    height: 24px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 6px;
    margin-top: 8px;
    opacity: 0.8;
}

/* Scroll indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 12px;
    animation: float-scroll 3s ease-in-out infinite;
}

@keyframes float-scroll {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   Section Header
   ============================================ */
.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-primary-light);
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 64px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   Features Grid
   ============================================ */
.features {
    padding: var(--section-padding) 0;
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--icon-color), transparent);
    opacity: 0;
    transition: opacity 0.4s;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.feature-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    background: color-mix(in srgb, var(--icon-color) 12%, transparent);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: var(--icon-color);
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   How it Works
   ============================================ */
.how-it-works {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
    position: relative;
}

.steps {
    display: flex;
    gap: 32px;
    position: relative;
}

.steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 60px;
    right: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-warm));
    opacity: 0.3;
}

.step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-primary-light);
    background: var(--bg-tertiary);
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.15);
}

.step-content h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 280px;
    margin: 0 auto;
}

/* ============================================
   Modules
   ============================================ */
.modules {
    padding: var(--section-padding) 0;
}

.module-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 120px;
}

.module-row:last-child {
    margin-bottom: 0;
}

.module-row-reverse {
    direction: rtl;
}

.module-row-reverse > * {
    direction: ltr;
}

.module-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.08);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-primary-light);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.module-info h3 {
    font-family: var(--font-heading);
    font-size: clamp(28px, 3vw, 36px);
    font-weight: 800;
    margin-bottom: 16px;
}

.module-info > p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.module-features {
    margin-bottom: 28px;
}

.module-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    font-size: 15px;
    color: var(--text-secondary);
}

.module-features li svg {
    flex-shrink: 0;
}

/* Module Mockup */
.module-visual {
    position: relative;
}

.module-mockup {
    width: 100%;
    height: 380px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.qr-mockup {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.04) 100%);
}

.waiter-mockup {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(239, 68, 68, 0.04) 100%);
}

.admin-mockup {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(6, 182, 212, 0.04) 100%);
}

/* Floating cards on mockups */
.float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    animation: float-card 6s ease-in-out infinite;
}

.float-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.float-card-1 {
    top: 30px;
    left: 30px;
    animation-delay: 0s;
}

.float-card-2 {
    bottom: 40px;
    right: 30px;
    animation-delay: 2s;
}

.float-card-3 {
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    animation-delay: 4s;
}

@keyframes float-card {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.float-card-3 {
    animation-name: float-card-alt;
}

@keyframes float-card-alt {
    0%, 100% { transform: translateY(-50%); }
    50% { transform: translateY(calc(-50% - 8px)); }
}

/* ============================================
   Advantages
   ============================================ */
.advantages {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.advantage-card {
    padding: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all 0.4s;
    text-align: center;
}

.advantage-card:hover {
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.08));
    border-radius: var(--radius-md);
    color: var(--accent-primary-light);
}

.advantage-card h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.advantage-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   Tech Stack
   ============================================ */
.tech-stack {
    padding: 80px 0;
}

.tech-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
}

.tech-info h2 {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
}

.tech-info p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: all 0.3s;
}

.tech-item:hover {
    border-color: var(--border-light);
    background: rgba(255, 255, 255, 0.05);
}

.tech-icon-box {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-sm);
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 700;
    color: white;
}

.tech-item span {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   Demo Section
   ============================================ */
.demo-section {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.demo-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 36px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all 0.4s;
    cursor: pointer;
}

.demo-card:hover {
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.demo-card-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: color-mix(in srgb, var(--demo-color) 12%, transparent);
    border-radius: var(--radius-md);
    color: var(--demo-color);
    margin-bottom: 20px;
}

.demo-card h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.demo-card p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.demo-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-primary-light);
    transition: gap 0.3s;
}

.demo-card:hover .demo-link {
    gap: 10px;
}

/* ============================================
   Final CTA
   ============================================ */
.final-cta {
    padding: var(--section-padding) 0;
}

.cta-inner {
    text-align: center;
    padding: 80px 40px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.04) 50%, rgba(245, 158, 11, 0.04) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.cta-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    opacity: 0.5;
}

.cta-inner h2 {
    font-family: var(--font-heading);
    font-size: clamp(28px, 3.5vw, 42px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.cta-inner p {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 60px 0 0;
    border-top: 1px solid var(--border-subtle);
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
}

.footer-brand p {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-muted);
    max-width: 280px;
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: var(--text-muted);
    padding: 4px 0;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding: 20px 0;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--accent-primary-light);
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* ============================================
   Animations
   ============================================ */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate="fade-left"] {
    transform: translateX(40px);
}

[data-animate].animated {
    opacity: 1;
    transform: translateY(0) translateX(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .hero-visual {
        max-width: 500px;
        margin: 0 auto;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .module-row,
    .module-row-reverse {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .module-row-reverse {
        direction: ltr;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .tech-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 64px;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(5, 5, 8, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 24px;
        z-index: 999;
    }

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

    .nav-links a {
        font-size: 20px;
    }

    .mobile-toggle {
        display: flex;
        z-index: 1001;
    }

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

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

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

    .nav-actions .btn {
        display: none;
    }

    .hero {
        min-height: auto;
        padding-top: 120px;
        padding-bottom: 80px;
    }

    .hero-title {
        font-size: clamp(32px, 8vw, 48px);
    }

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

    .hero-stats {
        flex-wrap: wrap;
        gap: 16px;
    }

    .stat-divider {
        display: none;
    }

    .mockup-phone {
        display: none;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .steps {
        flex-direction: column;
        gap: 40px;
    }

    .steps::before {
        display: none;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .demo-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .hero-scroll-indicator {
        display: none;
    }

    .module-mockup {
        height: 280px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .feature-card,
    .advantage-card {
        padding: 24px;
    }

    .cta-inner {
        padding: 48px 24px;
    }

    .tech-inner {
        padding: 32px 24px;
    }
}