/* ============================================================
   InfinityQ - Public website stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg-canvas: #0a0e27;
    --bg-elevated: #131734;
    --bg-card: #1a1f3f;
    --border: rgba(255, 255, 255, 0.08);
    --border-bright: rgba(255, 255, 255, 0.16);

    --text-primary: #ffffff;
    --text-secondary: #b8bcd9;
    --text-tertiary: #6b7197;

    --brand-purple: #8b5cf6;
    --brand-pink: #ec4899;
    --brand-gradient: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);

    --gold: #f5c842;
    --gold-soft: rgba(245, 200, 66, 0.12);

    --max-content: 1100px;
    --max-legal: 760px;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-pill: 999px;

    --space-xs: 6px;
    --space-sm: 12px;
    --space-md: 20px;
    --space-lg: 32px;
    --space-xl: 56px;
    --space-2xl: 96px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-canvas);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* ============================================================
   Starry background — subtle ambient effect
   ============================================================ */

.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(1px 1px at 20% 30%, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(1px 1px at 60% 70%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(2px 2px at 50% 50%, rgba(139, 92, 246, 0.2), transparent),
        radial-gradient(1px 1px at 80% 20%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1px 1px at 30% 80%, rgba(236, 72, 153, 0.2), transparent),
        radial-gradient(1px 1px at 90% 60%, rgba(255, 255, 255, 0.3), transparent);
    background-size: 200% 200%;
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

body::before {
    content: '';
    position: fixed;
    top: -30%;
    left: -10%;
    width: 60%;
    height: 70%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    bottom: -30%;
    right: -10%;
    width: 60%;
    height: 70%;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

/* ============================================================
   Navigation
   ============================================================ */

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    max-width: var(--max-content);
    margin: 0 auto;
    position: relative;
    z-index: 10;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* ============================================================
   Hero section
   ============================================================ */

main {
    position: relative;
    z-index: 1;
}

.hero {
    padding: var(--space-2xl) var(--space-lg) var(--space-xl);
    max-width: var(--max-content);
    margin: 0 auto;
    text-align: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 6px 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-weight: 500;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--brand-purple);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--brand-purple);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

.hero h1 {
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-md);
}

.gradient-text {
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto var(--space-lg);
    line-height: 1.55;
}

.cta-group {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-md);
}

.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 14px 28px;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--brand-gradient);
    color: white;
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(139, 92, 246, 0.45);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-bright);
}

.btn-secondary:hover {
    background: var(--bg-card);
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.05rem;
}

.hero-meta {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ============================================================
   Features section
   ============================================================ */

.features {
    padding: var(--space-2xl) var(--space-lg);
    max-width: var(--max-content);
    margin: 0 auto;
}

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

.eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--brand-pink);
    margin-bottom: var(--space-sm);
}

.section-header h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.feature-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-bright);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(236, 72, 153, 0.2));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================================
   CTA Section
   ============================================================ */

.cta-section {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    max-width: var(--max-content);
    margin: 0 auto;
}

.cta-section h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
}

.cta-section p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--space-lg);
}

/* ============================================================
   Legal pages (privacy, terms, support)
   ============================================================ */

.legal-page {
    padding: var(--space-xl) var(--space-lg) var(--space-2xl);
}

.legal-content {
    max-width: var(--max-legal);
    margin: 0 auto;
}

.legal-header {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.legal-header h1 {
    font-size: clamp(2.25rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: var(--space-sm);
    line-height: 1.1;
}

.updated {
    color: var(--text-tertiary);
    font-size: 0.95rem;
    font-family: 'JetBrains Mono', monospace;
}

.legal-content section {
    margin-bottom: var(--space-xl);
}

.legal-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    margin-top: var(--space-md);
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.legal-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: var(--space-md);
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.legal-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    font-size: 1rem;
    line-height: 1.7;
}

.legal-content p.lead {
    font-size: 1.15rem;
    color: var(--text-primary);
    line-height: 1.6;
    padding: var(--space-md);
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--brand-purple);
}

.legal-content ul {
    margin-bottom: var(--space-md);
    padding-left: var(--space-md);
    color: var(--text-secondary);
}

.legal-content li {
    margin-bottom: var(--space-xs);
    line-height: 1.7;
}

.legal-content a {
    color: var(--brand-pink);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid rgba(236, 72, 153, 0.3);
    transition: border-color 0.2s ease;
}

.legal-content a:hover {
    border-bottom-color: var(--brand-pink);
}

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

/* ============================================================
   Contact card (support page)
   ============================================================ */

.contact-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    margin-bottom: var(--space-xl);
}

.contact-card h2 {
    margin-top: 0;
    margin-bottom: var(--space-sm);
}

.contact-card p {
    margin-bottom: var(--space-md);
}

.contact-card .btn-primary {
    margin-bottom: var(--space-sm);
}

.small-note {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: 0;
    font-family: 'JetBrains Mono', monospace;
}

/* ============================================================
   FAQ accordion
   ============================================================ */

.faq-item {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.faq-item:hover {
    border-color: var(--border-bright);
}

.faq-item summary {
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    list-style: none;
    position: relative;
    padding-right: 48px;
    transition: background 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--brand-purple);
    transition: transform 0.2s ease;
    font-weight: 300;
}

.faq-item[open] summary::after {
    transform: translateY(-50%) rotate(45deg);
}

.faq-item p {
    padding: 0 var(--space-lg) var(--space-md);
    margin-bottom: 0;
    color: var(--text-secondary);
}

.faq-item p a {
    color: var(--brand-pink);
    text-decoration: none;
    border-bottom: 1px solid rgba(236, 72, 153, 0.3);
}

/* ============================================================
   Footer
   ============================================================ */

footer {
    border-top: 1px solid var(--border);
    margin-top: var(--space-2xl);
    padding: var(--space-xl) var(--space-lg);
    background: rgba(10, 14, 39, 0.5);
    backdrop-filter: blur(8px);
}

.footer-content {
    max-width: var(--max-content);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer-left p {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    margin-top: var(--space-xs);
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    max-width: var(--max-content);
    margin: 0 auto;
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

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

@media (max-width: 640px) {
    .nav {
        padding: var(--space-md) var(--space-md);
    }

    .nav-links {
        gap: var(--space-md);
    }

    .hero {
        padding: var(--space-xl) var(--space-md) var(--space-lg);
    }

    .features,
    .cta-section {
        padding: var(--space-xl) var(--space-md);
    }

    .legal-page {
        padding: var(--space-lg) var(--space-md) var(--space-xl);
    }

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

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .cta-group {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-primary,
    .btn-secondary {
        text-align: center;
    }
}