/* ============================================
   Ustoz ko'makchi - Landing Page Styles
   ============================================ */

/* Background Effects */
.bg-effects {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 8s ease-in-out infinite;
}

.bg-orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary-600);
    top: -200px;
    right: -100px;
    opacity: 0.15;
}

.bg-orb-2 {
    width: 400px;
    height: 400px;
    background: #8b5cf6;
    bottom: -100px;
    left: -100px;
    opacity: 0.1;
    animation-delay: -3s;
}

.bg-orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-500);
    top: 50%;
    left: 50%;
    opacity: 0.08;
    animation-delay: -5s;
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-line-color, rgba(255, 255, 255, 0.02)) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line-color, rgba(255, 255, 255, 0.02)) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: var(--space-4) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: var(--navbar-scrolled-bg, rgba(10, 14, 26, 0.85));
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--surface-glass-border);
    padding: var(--space-3) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-icon {
    display: flex;
    align-items: center;
}

.logo-text {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: #ffcc00;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.mobile-only-actions {
    display: none !important;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--gray-400);
    transition: color var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
    transition: width var(--transition-base);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--gray-300);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* Hero Section */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--header-height) + var(--space-12)) 0 var(--space-16);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--primary-400);
    margin-bottom: var(--space-6);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-500);
    border-radius: 50%;
    animation: pulse-glow 2s ease-in-out infinite;
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: 800;
    margin-bottom: var(--space-6);
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--gray-400);
    margin-bottom: var(--space-8);
    max-width: 520px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

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

.hero-stat-number {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--heading-color);
}

.hero-stat-suffix {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-400);
}

.hero-stat-label {
    display: block;
    font-size: var(--text-xs);
    color: var(--gray-500);
    margin-top: var(--space-1);
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-700);
}

/* Hero Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-mockup {
    width: 100%;
    max-width: 420px;
    background: var(--surface-card);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--surface-glass-border);
    background: rgba(255, 255, 255, 0.02);
}

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

.mockup-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.mockup-dots span:nth-child(1) {
    background: #ef4444;
}

.mockup-dots span:nth-child(2) {
    background: #f59e0b;
}

.mockup-dots span:nth-child(3) {
    background: #22c55e;
}

.mockup-title {
    font-size: var(--text-sm);
    color: var(--gray-400);
    font-weight: 500;
}

.mockup-body {
    padding: var(--space-5);
}

.mockup-ai-line {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
}

.ai-avatar {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
    position: relative;
}

.ai-anim-avatar {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.4);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.2) inset;
    overflow: visible;
}

.ai-anim-avatar::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    border: 1px solid rgba(59, 130, 246, 0.5);
    animation: ai-pulse-ring 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes ai-pulse-ring {
    0% {
        transform: scale(0.9);
        opacity: 0.8;
    }

    50% {
        transform: scale(1.3);
        opacity: 0;
    }

    100% {
        transform: scale(0.9);
        opacity: 0;
    }
}

.ai-loader-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
    width: 100%;
    height: 100%;
}

.ai-loader-box span {
    display: block;
    width: 4px;
    height: 12px;
    background: var(--primary-400);
    border-radius: 2px;
    animation: ai-equalizer 1.2s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.8);
}

.ai-loader-box span:nth-child(1) {
    animation-delay: -0.4s;
}

.ai-loader-box span:nth-child(2) {
    animation-delay: -0.2s;
    height: 16px;
    background: #fff;
}

.ai-loader-box span:nth-child(3) {
    animation-delay: 0s;
}

@keyframes ai-equalizer {

    0%,
    100% {
        transform: scaleY(0.4);
        opacity: 0.6;
    }

    50% {
        transform: scaleY(1.2);
        opacity: 1;
        box-shadow: 0 0 12px #fff, 0 0 4px #fff;
    }
}

.ai-message {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius-lg);
    border-top-left-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-4);
    flex: 1;
    min-height: 50px;
}

.ai-text {
    font-size: var(--text-sm);
    color: var(--gray-300);
    line-height: 1.5;
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--space-1) 0;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--primary-400);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

.mockup-score {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    margin-bottom: var(--space-5);
    padding: var(--space-4);
    background: var(--surface-glass);
    border-radius: var(--radius-lg);
}

.score-ring {
    position: relative;
    width: 80px;
    height: 80px;
    flex-shrink: 0;
}

.score-ring svg {
    transform: rotate(-90deg);
}

.score-value {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 800;
    color: var(--heading-color);
}

.score-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.score-item {
    font-size: var(--text-sm);
    color: var(--gray-400);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.score-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.score-item.correct .score-dot {
    background: var(--accent-500);
}

.score-item.wrong .score-dot {
    background: var(--error-500);
}

.mockup-feedback {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.feedback-tag {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 500;
    animation: slideInRight 0.5s ease both;
}

.feedback-tag.good {
    background: rgba(16, 185, 129, 0.1);
    border-left: 3px solid var(--accent-500);
    color: var(--accent-400);
    animation-delay: 1s;
}

.feedback-tag.warn {
    background: rgba(245, 158, 11, 0.1);
    border-left: 3px solid var(--warning-500);
    color: var(--warning-400);
    animation-delay: 1.3s;
}

.feedback-tag.info {
    background: rgba(59, 130, 246, 0.1);
    border-left: 3px solid var(--primary-500);
    color: var(--primary-400);
    animation-delay: 1.6s;
}

/* Sections Common */
section {
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-4);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--primary-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: var(--text-lg);
    color: var(--gray-400);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Grid */
.features {
    padding: var(--space-24) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, rgba(59, 130, 246, 0.05), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow-primary);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-5);
    color: var(--icon-color, var(--primary-500));
}

.feature-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.feature-text {
    font-size: var(--text-sm);
    color: var(--gray-400);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.feature-tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

/* How It Works */
.how-it-works {
    padding: var(--space-24) 0;
}

.steps-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
}

.step-card {
    flex: 1;
    max-width: 320px;
    background: var(--surface-card);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    position: relative;
    transition: all var(--transition-base);
}

.step-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-4px);
}

.step-number {
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
    position: absolute;
    top: var(--space-4);
    right: var(--space-5);
}

.step-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
}

.step-title {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.step-text {
    font-size: var(--text-sm);
    color: var(--gray-400);
    line-height: 1.7;
}

.step-connector {
    flex-shrink: 0;
}

/* AI Demo Section */
.ai-demo-section {
    padding: var(--space-24) 0;
}

.demo-container {
    background: var(--surface-card);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.demo-tabs {
    display: flex;
    border-bottom: 1px solid var(--surface-glass-border);
}

.demo-tab {
    flex: 1;
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-500);
    transition: all var(--transition-base);
    border-bottom: 2px solid transparent;
}

.demo-tab:hover {
    color: var(--gray-300);
    background: rgba(255, 255, 255, 0.02);
}

.demo-tab.active {
    color: var(--heading-color);
    border-bottom-color: var(--primary-500);
    background: rgba(59, 130, 246, 0.05);
}

.demo-panel {
    display: none;
    padding: var(--space-8);
}

.demo-panel.active {
    display: block;
}

.demo-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-6);
}

.demo-split h4 {
    font-size: var(--text-base);
    color: var(--heading-color);
    margin-bottom: var(--space-4);
    font-weight: 600;
}

.demo-questions {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.demo-q {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
}

.demo-q.correct {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.15);
}

.demo-q.wrong {
    background: rgba(244, 63, 94, 0.08);
    border: 1px solid rgba(244, 63, 94, 0.15);
}

.q-num {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: 700;
    flex-shrink: 0;
}

.demo-q.correct .q-num {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-400);
}

.demo-q.wrong .q-num {
    background: rgba(244, 63, 94, 0.2);
    color: var(--error-400);
}

.q-text {
    flex: 1;
    color: var(--gray-300);
}

.q-answer {
    font-weight: 600;
    font-size: var(--text-xs);
}

.demo-q.correct .q-answer {
    color: var(--accent-400);
}

.demo-q.wrong .q-answer {
    color: var(--error-400);
}

.demo-ai-output {
    min-height: 250px;
    background: var(--demo-output-bg, rgba(15, 23, 42, 0.5));
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.ai-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    height: 200px;
    color: var(--gray-500);
    font-size: var(--text-sm);
}

.ai-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(59, 130, 246, 0.2);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.demo-run-btn {
    display: block;
    margin: 0 auto;
}

/* Paper Demo */
.demo-paper-preview {
    background: var(--demo-output-bg, rgba(15, 23, 42, 0.5));
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    min-height: 250px;
}

.paper-doc {
    font-size: var(--text-sm);
    color: var(--gray-300);
    line-height: 1.8;
}

.paper-doc p {
    margin-bottom: var(--space-2);
}

.paper-doc ul {
    padding-left: var(--space-5);
    list-style: disc;
}

.paper-doc ul li {
    margin-bottom: var(--space-1);
    color: var(--gray-400);
}

.paper-doc.handwritten {
    font-style: italic;
    color: var(--gray-400);
}

.paper-ai-badge {
    margin-top: var(--space-4);
    padding: var(--space-3) var(--space-4);
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius-md);
    font-style: normal;
    font-size: var(--text-base);
}

/* Stats Section */
.stats-section {
    padding: var(--space-24) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.stat-card {
    background: var(--surface-card);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    transition: all var(--transition-base);
}

.stat-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-4px);
}

.stat-icon {
    font-size: 36px;
    margin-bottom: var(--space-4);
}

.stat-number {
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 900;
    color: var(--heading-color);
    display: inline;
}

.stat-unit {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--primary-400);
    display: inline;
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--gray-500);
    margin-top: var(--space-2);
}

/* CTA Section */
.cta-section {
    padding: var(--space-24) 0;
}

.cta-card {
    background: var(--gradient-card);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-2xl);
    padding: var(--space-16) var(--space-8);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-bg-effect {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.1), transparent 60%);
}

.cta-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    margin-bottom: var(--space-4);
    position: relative;
}

.cta-text {
    font-size: var(--text-lg);
    color: var(--gray-400);
    margin-bottom: var(--space-8);
    position: relative;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    position: relative;
}

/* Footer */
.footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--surface-glass-border);
    padding: var(--space-12) 0 var(--space-8);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-8);
}

.footer-desc {
    font-size: var(--text-sm);
    color: var(--text-color);
    margin-top: var(--space-3);
}

.footer-links {
    display: flex;
    gap: var(--space-6);
}

.footer-links a {
    font-size: var(--text-sm);
    color: var(--text-color);
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--primary-400);
}

.footer-bottom {
    padding-top: var(--space-6);
    border-top: 1px solid var(--surface-glass-border);
    text-align: center;
}

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

/* ============================================
   AI Demo Animation Styles
   ============================================ */

.ai-result {
    animation: fadeInUp 0.4s ease both;
}

.ai-result-item {
    margin-bottom: var(--space-4);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    line-height: 1.6;
}

.ai-result-item.error-analysis {
    background: rgba(244, 63, 94, 0.08);
    border-left: 3px solid var(--error-500);
    color: var(--gray-300);
}

.ai-result-item.recommendation {
    background: rgba(59, 130, 246, 0.08);
    border-left: 3px solid var(--primary-500);
    color: var(--gray-300);
}

.ai-result-item.success {
    background: rgba(16, 185, 129, 0.08);
    border-left: 3px solid var(--accent-500);
    color: var(--gray-300);
}

.ai-result-item strong {
    color: var(--heading-color);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-6);
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-12);
    }

    .hero-description {
        margin: 0 auto var(--space-8);
    }

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

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

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

    .steps-container {
        flex-direction: column;
        gap: var(--space-10);
    }

    .step-connector {
        transform: rotate(90deg);
        margin: -20px 0;
    }

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--surface-bg);
        flex-direction: column;
        padding: 100px var(--space-8);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 99;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-actions {
        display: none;
    }

    .nav-toggle {
        display: flex;
        z-index: 100;
    }

    .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);
    }

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

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

    .hero-title {
        font-size: var(--text-4xl);
    }

    .section-title {
        font-size: var(--text-3xl);
    }

    .cta-card {
        padding: var(--space-12) var(--space-4);
    }

    .cta-title {
        font-size: var(--text-3xl);
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-8);
    }

    .footer-links {
        flex-wrap: wrap;
        gap: var(--space-4);
    }

    .nav-actions {
        display: none !important;
    }

    .mobile-only-actions {
        display: flex !important;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-4);
    }

    .hero-stat-divider {
        display: none;
    }

    .hero-actions .btn {
        width: 100%;
    }
}

/* ============================================
   AI Playground Section
   ============================================ */
.ai-playground-section {
    padding: var(--space-24) 0;
    position: relative;
}

.playground-container {
    background: var(--surface-card);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-2xl);
    display: flex;
    overflow: hidden;
    min-height: 500px;
}

.playground-sidebar {
    width: 280px;
    background: var(--playground-sidebar-bg, rgba(15, 23, 42, 0.6));
    border-right: 1px solid var(--surface-glass-border);
    display: flex;
    flex-direction: column;
    padding: var(--space-4) 0;
}

.pg-tab {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-400);
    cursor: pointer;
    transition: all var(--transition-base);
    border-left: 3px solid transparent;
}

.pg-tab:hover {
    background: rgba(255, 255, 255, 0.02);
    color: var(--gray-200);
}

.pg-tab.active {
    background: rgba(59, 130, 246, 0.08);
    color: var(--heading-color);
    border-left-color: var(--primary-500);
}

.pg-icon {
    font-size: 18px;
}

.playground-content {
    flex: 1;
    padding: var(--space-8);
    background: transparent;
}

.pg-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.pg-panel.active {
    display: block;
}

.pg-panel-title {
    font-size: var(--text-xl);
    color: var(--heading-color);
    margin-bottom: var(--space-2);
}

.pg-panel-desc {
    font-size: var(--text-sm);
    color: var(--gray-400);
    margin-bottom: var(--space-6);
}

.pg-upload-area {
    border: 2px dashed var(--surface-glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-10) var(--space-6);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    margin-bottom: var(--space-4);
}

.pg-upload-area:hover,
.pg-upload-area.dragover {
    border-color: var(--primary-500);
    background: rgba(59, 130, 246, 0.05);
}

.pg-upload-icon {
    font-size: 40px;
    margin-bottom: var(--space-3);
}

.pg-upload-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--heading-color);
    margin-bottom: var(--space-1);
}

.pg-upload-text {
    font-size: var(--text-sm);
    color: var(--gray-500);
}

.pg-file-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    background: var(--surface-glass);
    border-radius: var(--radius-lg);
    border: 1px solid var(--surface-glass-border);
    margin-bottom: var(--space-4);
}

.pg-file-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.pg-file-icon {
    font-size: 24px;
}

.pg-file-name {
    font-size: var(--text-sm);
    color: var(--heading-color);
    font-weight: 500;
}

.pg-run-btn {
    width: 100%;
    margin-top: var(--space-4);
}

.pg-textarea,
.pg-textarea-sm {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    color: var(--input-color);
    font-size: var(--text-sm);
    line-height: 1.6;
    transition: all var(--transition-base);
}

.pg-textarea {
    height: 200px;
    resize: vertical;
}

.pg-textarea-sm {
    height: 100px;
    resize: none;
}

.pg-textarea.code-font {
    font-family: var(--font-mono);
    color: var(--accent-300);
}

.pg-textarea:focus,
.pg-textarea-sm:focus,
.pg-input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.pg-test-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.pg-input {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    color: var(--input-color);
    font-size: var(--text-sm);
    transition: all var(--transition-base);
}

.pg-result {
    margin-top: var(--space-6);
}

.pg-result .ai-result {
    margin-top: 0;
}

@media (max-width: 768px) {
    .playground-container {
        flex-direction: column;
    }

    .playground-sidebar {
        width: 100%;
        flex-direction: row;
        overflow-x: auto;
        border-right: none;
        border-bottom: 1px solid var(--surface-glass-border);
    }

    .pg-tab {
        white-space: nowrap;
        border-left: none;
        border-bottom: 3px solid transparent;
        justify-content: center;
    }

    .pg-tab.active {
        border-left: none;
        border-bottom-color: var(--primary-500);
    }
}

/* Pricing Section */
.pricing-section {
    padding: var(--space-24) 0;
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .pricing-section h2 {
        font-size: 1.8rem !important;
    }

    .pricing-section > .container > div:nth-child(2) {
        grid-template-columns: 1fr !important;
    }

    .pricing-section > .container > div:nth-child(2) > div:nth-child(2) {
        transform: scale(1) !important;
    }
}