:root {
    --bg: #0b1220;
    --bg-card: #131b2e;
    --bg-soft: #0f172a;
    --border: #1f2a44;
    --text: #e6ecff;
    --text-muted: #8a97b8;
    --accent: #4f9eff;
    --accent-soft: rgba(79, 158, 255, 0.12);
    --success: #3ddc97;
    --radius: 12px;
    --max-width: 960px;
    --font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre {
    font-family: var(--mono);
    font-size: 0.92em;
}

pre {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    overflow-x: auto;
}

code {
    background: var(--accent-soft);
    color: #c8deff;
    padding: 1px 6px;
    border-radius: 4px;
}

pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    border-bottom: 1px solid var(--border);
    background: rgba(11, 18, 32, 0.8);
    backdrop-filter: saturate(140%) blur(6px);
    position: sticky;
    top: 0;
    z-index: 10;
}
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 24px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 600;
}
.brand:hover { text-decoration: none; }
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, #4f9eff, #7c5cff);
    color: white;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.brand-text em {
    font-style: normal;
    color: var(--text-muted);
    margin: 0 4px;
}
.site-header nav {
    display: flex;
    gap: 20px;
}
.site-header nav a {
    color: var(--text-muted);
    font-size: 14px;
}
.site-header nav a:hover,
.site-header nav a.active {
    color: var(--text);
    text-decoration: none;
}

/* Hero */
.hero {
    padding: 72px 0 24px;
    text-align: center;
}
.hero.narrow { padding-bottom: 8px; }
.hero h1 {
    font-size: 44px;
    line-height: 1.1;
    margin: 16px 0 12px;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #a7c4ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero .lead {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 640px;
    margin: 0 auto;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--success);
    background: rgba(61, 220, 151, 0.08);
    border: 1px solid rgba(61, 220, 151, 0.25);
    padding: 6px 12px;
    border-radius: 999px;
}
.pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 0 0 rgba(61, 220, 151, 0.6);
    animation: pulse 1.8s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(61, 220, 151, 0.6); }
    70% { box-shadow: 0 0 0 10px rgba(61, 220, 151, 0); }
    100% { box-shadow: 0 0 0 0 rgba(61, 220, 151, 0); }
}
.hero-actions {
    margin-top: 28px;
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 11px 20px;
    border-radius: 10px;
    font-weight: 500;
    font-size: 15px;
    border: 1px solid transparent;
    transition: transform 0.1s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
    background: var(--accent);
    color: #06142b;
}
.btn-primary:hover { background: #6db0ff; }
.btn-ghost {
    border-color: var(--border);
    color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Cards grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    padding: 48px 0 16px;
}
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
}
.card h3 {
    margin: 0 0 8px;
    font-size: 18px;
}
.card p {
    margin: 0;
    color: var(--text-muted);
}

/* Info panel */
.info-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    margin: 40px 0;
}
.info-panel h2 {
    margin: 0 0 16px;
    font-size: 20px;
}
.info-grid {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 8px 24px;
    margin: 0;
}
.info-grid dt {
    color: var(--text-muted);
    font-size: 14px;
}
.info-grid dd {
    margin: 0;
    font-family: var(--mono);
    font-size: 14px;
    word-break: break-word;
}
.info-panel .note {
    margin-top: 20px;
    color: var(--text-muted);
    font-size: 14px;
}

/* Steps */
.steps ol {
    counter-reset: step;
    list-style: none;
    padding: 0;
    margin: 40px 0;
}
.steps li {
    counter-increment: step;
    position: relative;
    padding: 24px 24px 24px 72px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 14px;
}
.steps li::before {
    content: counter(step);
    position: absolute;
    left: 22px;
    top: 24px;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--mono);
}
.steps h3 {
    margin: 0 0 6px;
    font-size: 17px;
}
.steps p { margin: 0 0 8px; color: var(--text-muted); }
.steps pre { margin: 12px 0 0; }

/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 32px 0 48px;
    margin-top: 64px;
    color: var(--text-muted);
    font-size: 14px;
}
.site-footer p { margin: 0 0 4px; }
.site-footer .muted { font-size: 13px; opacity: 0.7; }

@media (max-width: 600px) {
    .hero h1 { font-size: 32px; }
    .site-header nav { gap: 14px; }
    .site-header nav a:last-child { display: none; }
    .info-grid { grid-template-columns: 1fr; gap: 2px 0; }
    .info-grid dd { margin-bottom: 10px; }
}