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

:root {
    --bg: #0a0a1a;
    --surface: #12122a;
    --border: rgba(255,255,255,0.08);
    --text: #e8e8f0;
    --text-secondary: rgba(255,255,255,0.55);
    --text-muted: rgba(255,255,255,0.3);
    --accent: #6366f1;
    --accent-light: #818cf8;
    --warning: #f59e0b;
    --success: #10b981;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* Nav */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10,10,26,0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}
.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-light);
    text-decoration: none;
    letter-spacing: -0.5px;
}
.nav-links {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 8px;
    transition: all 0.2s;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--text);
    background: rgba(255,255,255,0.06);
}

/* Main */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

/* Hero */
.hero {
    text-align: center;
    padding: 60px 0 40px;
}
.hero h1 {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--accent-light), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.subtitle {
    color: var(--text-secondary);
    font-size: 16px;
    margin-top: 8px;
}
.version {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 12px;
}

/* Cards grid */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    text-decoration: none;
    color: var(--text);
    transition: all 0.2s;
}
.card:hover {
    border-color: rgba(99,102,241,0.3);
    transform: translateY(-2px);
}
.card-icon {
    font-size: 28px;
    margin-bottom: 12px;
}
.card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
}
.card p {
    color: var(--text-secondary);
    font-size: 13px;
}

/* Content article */
.content {
    padding-top: 48px;
}
.content h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}
.updated {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 32px;
}
.content h2 {
    font-size: 20px;
    font-weight: 600;
    margin-top: 36px;
    margin-bottom: 12px;
    color: var(--accent-light);
}
.content p {
    margin-bottom: 14px;
    color: var(--text-secondary);
}
.content ul, .content ol {
    margin-bottom: 14px;
    padding-left: 24px;
}
.content li {
    margin-bottom: 6px;
    color: var(--text-secondary);
}
.content strong {
    color: var(--text);
}
.content a {
    color: var(--accent-light);
    text-decoration: none;
}
.content a:hover {
    text-decoration: underline;
}
.content code {
    background: rgba(99,102,241,0.12);
    color: var(--accent-light);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 13px;
    font-family: 'SF Mono', 'Fira Code', monospace;
}
.content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 14px;
}
.content th, .content td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
}
.content th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: 160px;
}
.content td {
    color: var(--text-secondary);
}

/* Source cards */
.source-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin: 16px 0;
}
.source-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text);
}
.source-note {
    font-size: 12px;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 8px;
    margin-bottom: 0;
}

/* Algorithm box */
.algorithm {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 20px;
    margin: 12px 0 16px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 14px;
    color: var(--accent-light);
}
.algorithm p { margin-bottom: 10px; color: var(--accent-light); }
.algorithm p:last-child { margin-bottom: 0; }

/* Warning box */
.warning-box {
    background: rgba(245,158,11,0.08);
    border: 1px solid rgba(245,158,11,0.2);
    border-radius: 12px;
    padding: 20px 24px;
    margin: 24px 0;
}
.warning-box h3 {
    color: var(--warning);
    font-size: 16px;
    margin-bottom: 8px;
}
.warning-box p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Info banner (appears on every page) */
.info-banner {
    background: rgba(99,102,241,0.06);
    border: 1px solid rgba(99,102,241,0.15);
    border-radius: 12px;
    padding: 20px 24px;
    margin-top: 48px;
}
.info-banner h3 {
    color: var(--accent-light);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
}
.info-banner p {
    color: var(--text-secondary);
    font-size: 13px;
    margin: 0;
}
.info-banner a { color: var(--accent-light); text-decoration: none; }
.info-banner a:hover { text-decoration: underline; }

/* Contact */
.contact {
    text-align: center;
    padding: 32px 0 0;
}
.contact h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}
.contact p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 4px;
}
.contact a { color: var(--accent-light); text-decoration: none; }

/* Footer */
footer {
    max-width: 900px;
    margin: 0 auto;
    padding: 32px 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}
.footer-privacy {
    background: rgba(16,185,129,0.06);
    border: 1px solid rgba(16,185,129,0.15);
    border-radius: 10px;
    padding: 14px 20px;
    margin-bottom: 16px;
    font-size: 12px;
    color: var(--text-secondary);
}
.footer-privacy strong { color: var(--success); }
footer > p {
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 10px;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 12px;
}
.footer-links a:hover { color: var(--accent-light); }

/* Google Translate widget */
#google_translate_element { flex-shrink: 0; }
.goog-te-gadget { font-size: 0 !important; }
.goog-te-gadget select {
    background: rgba(255,255,255,0.06);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 12px;
    outline: none;
    cursor: pointer;
}
.goog-te-gadget .goog-te-combo { margin: 0 !important; }
.goog-te-banner-frame { display: none !important; }
body { top: 0 !important; }
.skiptranslate { display: none !important; }
#goog-gt-tt { display: none !important; }

/* Responsive */
@media (max-width: 600px) {
    .hero h1 { font-size: 28px; }
    .content h1 { font-size: 26px; }
    .content th { width: 100px; font-size: 11px; }
    .nav-links { gap: 2px; }
    .nav-links a { font-size: 12px; padding: 5px 8px; }
    .cards { grid-template-columns: 1fr; }
}