/* Compliance Intelligence Platform — enterprise UI shell.
   Vanilla CSS, no framework. Desktop-first, responsive down to tablet. */

:root {
  --bg: #0f1218;
  --surface: #171b23;
  --surface-2: #1e232d;
  --border: #2a313d;
  --text: #e7ebf0;
  --text-dim: #9aa4b2;
  --accent: #3b82f6;
  --accent-ink: #ffffff;
  --ok: #22c55e;
  --warn: #f59e0b;
  --high: #f97316;
  --crit: #ef4444;
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6f9; --surface: #ffffff; --surface-2: #f0f3f7; --border: #d9dfe7;
    --text: #1b2430; --text-dim: #5b6675; --accent-ink: #ffffff;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; line-height: 1.5; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.boot { display: grid; place-items: center; height: 100vh; color: var(--text-dim); }

/* ---------- Auth ---------- */
.auth { display: grid; place-items: center; min-height: 100vh; padding: 32px; }
.auth-card {
  width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 40px;
}
.auth-card h1 { font-size: 18px; margin: 0 0 8px; }
.auth-card .sub { color: var(--text-dim); margin: 0 0 28px; font-size: 13px; }

.field { margin-bottom: 20px; }
.field label { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .04em; }
.field input {
  width: 100%; padding: 12px 14px; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 14px; font-family: var(--font);
}
.field input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: 8px; border: 1px solid transparent; cursor: pointer;
  font-size: 14px; font-family: var(--font); font-weight: 600;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); width: 100%; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.form-error {
  background: color-mix(in srgb, var(--crit) 15%, transparent);
  border: 1px solid var(--crit); color: var(--text);
  padding: 12px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 20px;
}
.notice { color: var(--text-dim); font-size: 12px; margin-top: 18px; }

/* ---------- App shell ---------- */
.shell { display: grid; grid-template-columns: 240px 1fr; grid-template-rows: 64px 1fr; height: 100vh; }
.sidebar { grid-row: 1 / 3; background: var(--surface); border-right: 1px solid var(--border); padding: 20px 14px; overflow-y: auto; }
.brand { font-weight: 700; font-size: 14px; padding: 10px 12px 22px; letter-spacing: .01em; }
.brand small { display: block; color: var(--text-dim); font-weight: 500; font-size: 11px; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px;
  color: var(--text-dim); font-size: 13px; margin-bottom: 4px;
}
.nav a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav a.active { background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--text); }
.nav .group { font-size: 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim); padding: 18px 12px 8px; }

.topbar { grid-column: 2; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; background: var(--surface); border-bottom: 1px solid var(--border); }
.topbar .search { flex: 1; max-width: 420px; }
.topbar .search input { width: 100%; padding: 8px 12px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px; color: var(--text); }
.topbar .who { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-dim); }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 700; font-size: 12px; }

.main { grid-column: 2; padding: 32px; overflow-y: auto; }
.page-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 28px; }
.page-head h2 { margin: 0; font-size: 20px; }
.page-head .crumb { color: var(--text-dim); font-size: 12px; }

.demo-banner {
  background: color-mix(in srgb, var(--warn) 16%, transparent); border: 1px solid var(--warn);
  color: var(--text); padding: 10px 16px; border-radius: 8px; font-size: 12px; margin-bottom: 22px;
}

/* ---------- Cards / tiles ---------- */
.grid { display: grid; gap: 20px; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; }
.stat .label { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.stat .value { font-size: 26px; font-weight: 700; margin-top: 8px; font-variant-numeric: tabular-nums; }
.stat .value.muted { color: var(--text-dim); }
.stat .foot { color: var(--text-dim); font-size: 11px; margin-top: 6px; }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--text-dim); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; background: var(--surface-2); }
tr:last-child td { border-bottom: none; }

/* ---------- Badges / risk ---------- */
.badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; border: 1px solid var(--border); }
.risk-LOW { color: var(--ok); border-color: var(--ok); }
.risk-MEDIUM { color: var(--warn); border-color: var(--warn); }
.risk-HIGH { color: var(--high); border-color: var(--high); }
.risk-CRITICAL { color: var(--crit); border-color: var(--crit); }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 100; padding: 24px;
  background: color-mix(in srgb, black 60%, transparent);
  display: grid; place-items: center;
}
.modal-dialog { max-height: 90vh; overflow-y: auto; }
.modal-dialog .auth-card { box-shadow: 0 20px 60px color-mix(in srgb, black 45%, transparent); }

/* ---------- Misc ---------- */
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 10px 20px; font-size: 13px; }
.kv dt { color: var(--text-dim); }
.kv dd { margin: 0; }
.pill-list { display: flex; flex-wrap: wrap; gap: 8px; }
.muted { color: var(--text-dim); }
.mono { font-family: var(--mono); font-size: 12px; }

@media (max-width: 1100px) { .grid.cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; grid-template-rows: 64px auto 1fr; }
  .sidebar { grid-row: auto; grid-column: 1; display: flex; gap: 8px; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .nav { display: flex; gap: 4px; }
  .nav .group, .brand small { display: none; }
  .topbar, .main { grid-column: 1; }
  .grid.cols-2, .grid.cols-4 { grid-template-columns: 1fr; }
}