/* ================================================
   Neon Sync Website — Shared Styles
   Dark theme matching the app's neon aesthetic
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --neon-green: #4ade80;
    --neon-green-dim: #4ade8033;
    --neon-cyan: #22d3ee;
    --neon-purple: #9333ea;
    --border-color: #334155;
    --accent-gradient: linear-gradient(180deg, #22d3ee, #9333ea);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--neon-green);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--neon-cyan);
}

/* Layout */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

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

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-brand .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--neon-green);
    box-shadow: 0 0 8px var(--neon-green);
}

.nav-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--neon-green);
}

/* Hero */
.hero {
    padding: 80px 0 60px;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    background: linear-gradient(180deg, #22d3ee, #9333ea);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.5));
    line-height: 1.1;
}

.app-icon {
    width: 100px;
    height: 100px;
    border-radius: 22px;
    margin: 0 auto 24px;
    box-shadow: 0 0 30px rgba(34, 211, 238, 0.3), 0 8px 32px rgba(0, 0, 0, 0.4);
}

.hero .tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 300;
}

.hero .cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 32px;
    background: var(--neon-green);
    color: var(--bg-primary);
    font-weight: 700;
    font-size: 1rem;
    border-radius: 50px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 0 20px var(--neon-green-dim);
}

.hero .cta:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px var(--neon-green-dim);
    color: var(--bg-primary);
}

.hero .cta img {
    height: 24px;
}

/* Screenshots */
.screenshots {
    padding: 40px 0 80px;
    text-align: center;
}

.screenshot-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.screenshot-grid img {
    width: 200px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s;
}

.screenshot-grid img:hover {
    transform: translateY(-4px);
}

/* Features */
.features {
    padding: 60px 0;
}

.features h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: border-color 0.3s, transform 0.3s;
}

.feature-card:hover {
    border-color: var(--neon-green);
    transform: translateY(-2px);
}

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

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-links a:hover {
    color: var(--neon-green);
}

.footer .copyright {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Legal Pages */
.legal {
    padding: 60px 0;
    max-width: 720px;
    margin: 0 auto;
}

.legal h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.legal .last-updated {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 40px;
}

.legal h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--neon-green);
}

.legal p,
.legal li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 12px;
    line-height: 1.7;
}

.legal ul {
    padding-left: 24px;
    margin-bottom: 16px;
}

.legal li {
    margin-bottom: 6px;
}

/* Support Page */
.support {
    padding: 80px 0;
    text-align: center;
}

.support h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.support .subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 48px;
}

.support-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    max-width: 480px;
    margin: 0 auto;
}

.support-card .email-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.support-card .email {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--neon-green);
}

.support-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 16px;
}

/* Responsive */
@media (max-width: 640px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero .tagline {
        font-size: 1rem;
    }

    .nav-links {
        gap: 16px;
    }

    .nav-links a {
        font-size: 0.75rem;
    }

    .screenshot-grid img {
        width: 140px;
    }

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