:root {
  --bg: #0d1117; --panel: #161b22; --panel2: #1c2330; --border: #2b3444;
  --text: #e6edf3; --muted: #8b98a9; --accent: #6c8cff; --accent2: #b48af7;
  --danger: #f47067; --warn: #e3b341; --ok: #57ab5a; --radius: 10px;
}
* { box-sizing: border-box; margin: 0; }
body { background: var(--bg); color: var(--text); font: 15px/1.55 "Segoe UI", system-ui, sans-serif; min-height: 100vh; display: flex; flex-direction: column; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar { display: flex; justify-content: space-between; align-items: center; padding: 14px 28px; border-bottom: 1px solid var(--border); background: var(--panel); }
.brand { font-size: 20px; font-weight: 700; color: var(--text); letter-spacing: -0.5px; }
.brand span { color: var(--accent); }
.topbar nav { display: flex; gap: 18px; align-items: center; }
.topbar nav a { color: var(--muted); }
.topbar nav a:hover { color: var(--text); text-decoration: none; }

.container { max-width: 1100px; margin: 0 auto; padding: 28px; width: 100%; flex: 1; }
.footer { text-align: center; color: var(--muted); font-size: 13px; padding: 24px; border-top: 1px solid var(--border); }

.btn { display: inline-block; background: var(--accent); color: #fff; padding: 10px 20px; border-radius: var(--radius); border: none; font-size: 15px; font-weight: 600; cursor: pointer; }
.btn:hover { filter: brightness(1.1); text-decoration: none; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-danger { background: var(--danger); }

.badge { background: var(--danger); color: #fff; border-radius: 10px; padding: 1px 7px; font-size: 11px; }
.plan-pill { border: 1px solid var(--accent); border-radius: 20px; padding: 3px 12px; font-size: 12px; color: var(--accent) !important; }
.banner { padding: 10px 28px; font-size: 14px; }
.banner.warn { background: #3a2d12; color: var(--warn); border-bottom: 1px solid #5c4a1e; }

.grid { display: grid; gap: 16px; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .grid.cols-4, .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr 1fr; } }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.card h3 { font-size: 13px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; }
.metric { font-size: 28px; font-weight: 700; letter-spacing: -0.5px; }
.metric small { font-size: 14px; color: var(--muted); font-weight: 400; }
.sub { color: var(--muted); font-size: 13px; margin-top: 4px; }

h1 { font-size: 26px; margin-bottom: 6px; letter-spacing: -0.5px; }
h2 { font-size: 19px; margin: 26px 0 12px; }
.lede { color: var(--muted); margin-bottom: 22px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; padding: 8px 10px; border-bottom: 1px solid var(--border); }
td { padding: 9px 10px; border-bottom: 1px solid var(--panel2); }
tr:hover td { background: var(--panel2); }

.pill { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; }
.pill.critical { background: #4a1f1c; color: var(--danger); }
.pill.warning { background: #3a2d12; color: var(--warn); }
.pill.healthy { background: #1c3a24; color: var(--ok); }
.pill.inactive { background: var(--panel2); color: var(--muted); }

form.stack { display: flex; flex-direction: column; gap: 12px; max-width: 380px; }
input, select, textarea { background: var(--panel2); border: 1px solid var(--border); border-radius: 8px; color: var(--text); padding: 10px 12px; font-size: 15px; width: 100%; }
label { font-size: 13px; color: var(--muted); }
.error { background: #4a1f1c; color: var(--danger); padding: 10px 14px; border-radius: 8px; font-size: 14px; }
.success { background: #1c3a24; color: var(--ok); padding: 10px 14px; border-radius: 8px; font-size: 14px; }

.chart { background: var(--panel2); border-radius: 8px; }
.chart polyline { fill: none; stroke: var(--accent); stroke-width: 2.5; }
.chart .area { fill: rgba(108, 140, 255, 0.14); stroke: none; }

.hero { text-align: center; padding: 64px 20px 48px; }
.hero h1 { font-size: 42px; line-height: 1.15; max-width: 720px; margin: 0 auto 16px; }
.hero p { font-size: 18px; color: var(--muted); max-width: 560px; margin: 0 auto 28px; }
.hero .accent { color: var(--accent); }

.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 24px; }
.price-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; text-align: center; }
.price-card.featured { border-color: var(--accent); position: relative; }
.price-card .price { font-size: 36px; font-weight: 700; margin: 10px 0; }
.price-card .price small { font-size: 15px; color: var(--muted); font-weight: 400; }
.price-card ul { list-style: none; padding: 0; margin: 16px 0 20px; color: var(--muted); font-size: 14px; }
.price-card li { padding: 4px 0; }
.tag { position: absolute; top: -11px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 12px; border-radius: 12px; }

.cohort-cell { text-align: center; min-width: 52px; }
.digest-pre { background: var(--panel2); border: 1px solid var(--border); border-radius: 8px; padding: 18px; white-space: pre-wrap; font-family: Consolas, monospace; font-size: 13px; }
.reasons { color: var(--muted); font-size: 12px; }
.mono { font-family: Consolas, monospace; font-size: 13px; }
.actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }