:root {
    --cs-bg: #0a0a12;
    --cs-bg-2: #12121f;
    --cs-surface: rgba(30, 25, 55, 0.55);
    --cs-border: rgba(139, 92, 246, 0.22);
    --cs-accent: #8b5cf6;
    --cs-accent-2: #6366f1;
    --cs-text: #e8e6f5;
    --cs-muted: #9a95b8;
    --cs-radius: 14px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--cs-text);
    line-height: 1.65;
    background:
        radial-gradient(1200px 800px at 10% -10%, rgba(139,92,246,0.15), transparent 60%),
        radial-gradient(900px 700px at 110% 110%, rgba(99,102,241,0.12), transparent 60%),
        var(--cs-bg);
    min-height: 100%;
}
.cs-container { max-width: 900px; margin: 0 auto; padding: 0 24px; }

.cs-site-header {
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    background: rgba(10, 10, 18, 0.6);
    border-bottom: 1px solid var(--cs-border);
    position: sticky; top: 0; z-index: 10;
}
.cs-site-header .cs-container {
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 18px; padding-bottom: 18px;
}
.cs-brand { text-decoration: none; color: var(--cs-text); }
.cs-brand-name {
    font-weight: 700; font-size: 20px; letter-spacing: -0.3px;
    background: linear-gradient(135deg, #a78bfa, #818cf8);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.cs-brand-tagline { color: var(--cs-muted); font-size: 13px; margin-left: 10px; }
.cs-nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.cs-nav a { color: var(--cs-muted); text-decoration: none; font-size: 14px; transition: color .15s; }
.cs-nav a:hover { color: var(--cs-text); }
.cs-nav-admin {
    background: linear-gradient(135deg, var(--cs-accent), var(--cs-accent-2));
    color: #fff !important; padding: 6px 14px; border-radius: 8px; font-weight: 500;
}

.cs-content { padding: 60px 24px 80px; }
.cs-heading { margin: 36px 0 16px; font-weight: 700; letter-spacing: -0.4px; }
h1.cs-heading { font-size: 42px; margin-top: 0; }
h2.cs-heading { font-size: 30px; }
h3.cs-heading { font-size: 22px; }
.cs-text { color: var(--cs-text); margin: 14px 0; }
.cs-image { margin: 24px 0; }
.cs-image img { width: 100%; border-radius: var(--cs-radius); border: 1px solid var(--cs-border); }
.cs-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--cs-accent), var(--cs-accent-2));
    color: #fff; padding: 12px 26px; border-radius: 10px;
    font-weight: 600; text-decoration: none;
    transition: transform .1s, box-shadow .15s;
}
.cs-button:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(139,92,246,0.35); }
.cs-divider { border: none; border-top: 1px solid var(--cs-border); margin: 36px 0; }
.cs-quote {
    margin: 24px 0;
    padding: 18px 22px;
    background: var(--cs-surface);
    border-left: 3px solid var(--cs-accent);
    border-radius: 0 var(--cs-radius) var(--cs-radius) 0;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.cs-quote cite { display: block; margin-top: 8px; color: var(--cs-muted); font-style: normal; font-size: 14px; }
.cs-code {
    background: rgba(0,0,0,0.35);
    border: 1px solid var(--cs-border);
    padding: 16px 18px;
    border-radius: var(--cs-radius);
    overflow-x: auto;
    font-family: "SF Mono", Menlo, monospace;
    font-size: 13px;
    line-height: 1.55;
}
.cs-columns { display: grid; gap: 20px; margin: 24px 0; }
.cs-columns[data-count="2"] { grid-template-columns: 1fr 1fr; }
.cs-columns[data-count="3"] { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 640px) { .cs-columns { grid-template-columns: 1fr !important; } }

.cs-site-footer {
    border-top: 1px solid var(--cs-border);
    padding: 28px 0; margin-top: 60px;
    color: var(--cs-muted); font-size: 13px; text-align: center;
}
.cs-site-footer a { color: var(--cs-accent); text-decoration: none; }
.cs-site-footer a:hover { text-decoration: underline; }