/* QAIL Website - Cyberpunk Dark Theme */

:root {
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --bg-code: #1a1a24;
    --text-primary: #e8e8f0;
    --text-secondary: #9090a0;
    --accent-cyan: #00f0ff;
    --accent-purple: #a855f7;
    --accent-pink: #f472b6;
    --accent-green: #22c55e;
    --gradient-primary: linear-gradient(135deg, #00f0ff 0%, #a855f7 100%);
    --gradient-glow: radial-gradient(ellipse at 50% 0%, rgba(0, 240, 255, 0.15) 0%, transparent 50%);
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

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

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-cyan);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-dark);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0, 240, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.btn-github {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-github:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-large {
    padding: 14px 32px;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glow);
    pointer-events: none;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 50%);
    transform: translate(-50%, -50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }

    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.8;
    }
}

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

.hero-title {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 800;
    margin-bottom: 8px;
    /* display: flex; removed to allow <br> to work */
    /* align-items: center; */
    /* justify-content: center; */
    /* gap: 16px; */
}

.hero-icon {
    font-size: 0.8em;
    animation: swing 3s ease-in-out infinite;
}

@keyframes swing {

    0%,
    100% {
        transform: rotate(-5deg);
    }

    50% {
        transform: rotate(5deg);
    }
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 16px;
}

.hero-tagline {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: 48px;
}

.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

/* Demo Comparison */
.hero-demo {
    margin-bottom: 48px;
}

.demo-compare {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.demo-old,
.demo-new {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: left;
    min-width: 300px;
}

.demo-old {
    opacity: 0.6;
}

.demo-new {
    border-color: rgba(0, 240, 255, 0.3);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.1);
}

.demo-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.demo-old code,
.demo-new code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-primary);
}

.demo-new code {
    color: var(--accent-cyan);
}

.demo-arrow {
    font-size: 2rem;
    color: var(--accent-purple);
}

/* CTA Buttons */
.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 32px;
}

.hero-install {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-code);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 999px;
    padding: 8px 8px 8px 20px;
}

.hero-install code {
    font-family: var(--font-mono);
    color: var(--accent-green);
}

.copy-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

/* Features */
.features {
    padding: 120px 0;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 64px;
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 32px;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: rgba(0, 240, 255, 0.2);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Symbols Table */
.symbols {
    padding: 120px 0;
    background: var(--bg-card);
}

.symbols-table-wrapper {
    overflow-x: auto;
}

.symbols-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.symbols-table th,
.symbols-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.symbols-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.symbols-table td.symbol {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-cyan);
    width: 80px;
}

.symbols-table code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background: rgba(0, 0, 0, 0.3);
    padding: 4px 8px;
    border-radius: 4px;
    color: var(--text-secondary);
}

.symbols-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Examples */
.examples {
    padding: 120px 0;
}

.example-cards {
    display: grid;
    gap: 24px;
}

.example-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 24px;
}

.example-card h3 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.code-block {
    background: var(--bg-code);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
    overflow-x: auto;
}

.code-block:last-child {
    margin-bottom: 0;
}

.code-block code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    white-space: pre-wrap;
    word-break: break-all;
}

.code-block code.qail {
    color: var(--accent-cyan);
}

.code-block.sql code {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.code-block.rust code {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.highlight-card {
    border-color: rgba(0, 240, 255, 0.3);
    background: linear-gradient(180deg, rgba(0, 240, 255, 0.05) 0%, rgba(18, 18, 26, 0) 100%);
}

.highlight-card h3 {
    color: var(--accent-cyan);
}

/* CTA Section */
.cta {
    padding: 120px 0;
    text-align: center;
    background: var(--gradient-glow);
}

.cta h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 32px;
}

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

/* Footer */
.footer {
    padding: 48px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        gap: 16px;
    }

    .nav-links a:not(.btn) {
        display: none;
    }

    .demo-compare {
        flex-direction: column;
    }

    .demo-arrow {
        transform: rotate(90deg);
    }

    .demo-old,
    .demo-new {
        min-width: 100%;
    }

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

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

/* Page Header & Common Elements */
.page-header {
    padding: 120px 0 60px;
    text-align: center;
    background: var(--gradient-glow);
}

.page-header h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.page-header .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.pill {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(0, 240, 255, 0.1);
    color: var(--accent-cyan);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(0, 240, 255, 0.2);
    text-decoration: none;
    transition: var(--transition);
}

.pill:hover {
    background: rgba(0, 240, 255, 0.2);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}
/* Prose & Content Styling */
.page-content {
    padding: 60px 0 120px;
}

.prose {
    max-width: 800px;
    margin: 0 auto;
}

.prose section {
    margin-bottom: 60px;
}

.prose h2 {
    font-size: 2rem;
    margin-bottom: 24px;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 16px;
}

.prose p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

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

.prose ol, .prose ul {
    margin-bottom: 24px;
    padding-left: 24px;
}

.prose li {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.prose li strong {
    color: var(--accent-cyan);
}

/* Comparison Grid (Philosophy Page) */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 32px 0;
}

.comparison-grid .code-block {
    height: 100%;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
}

.comparison-grid small {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Alert Boxes */
.alert {
    padding: 24px;
    border-radius: var(--border-radius);
    margin-bottom: 32px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.alert-info {
    background: rgba(0, 240, 255, 0.05);
    border-color: rgba(0, 240, 255, 0.2);
}

.alert-info strong {
    color: var(--accent-cyan);
}

@media (max-width: 768px) {
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
}