:root {
  --bg: #F6F7FA;
  --surface: #FFFFFF;
  --surface-alt: #EEF1F6;
  --border: #DDE2EA;
  --ink: #16213A;
  --ink-soft: #5B6478;
  --ink-faint: #8991A3;
  --brand: #1E3A5F;
  --brand-deep: #142942;
  --accent: #D97B29;
  --accent-soft: #D97B2917;
  --success: #1B8A5A;
  --success-soft: #1B8A5A14;
  --warning: #C08A1E;
  --warning-soft: #C08A1E14;
  --critical: #C4432B;
  --critical-soft: #C4432B14;
  --radius: 8px;
  --radius-sm: 5px;
  --shadow: 0 1px 2px rgba(20, 30, 60, 0.06), 0 1px 8px rgba(20, 30, 60, 0.05);
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Consolas, Menlo, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 { margin: 0; text-wrap: balance; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: 1.375rem; }
h2 { font-size: 1.0625rem; }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- app shell ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  order: -1;
  width: 216px;
  flex-shrink: 0;
  background: var(--brand);
  color: #E7ECF3;
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
}
.sidebar .wordmark {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 4px 8px 22px;
  color: #fff;
}
.sidebar .wordmark svg { flex-shrink: 0; }
.sidebar .wordmark span { font-size: 1.05rem; font-weight: 800; letter-spacing: -0.01em; }
.sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar nav a {
  color: #C6D0E0;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  transition: background 0.12s, color 0.12s;
}
.sidebar nav a:hover { background: rgba(255,255,255,0.07); color: #fff; }
.sidebar nav a.active { background: var(--accent); color: #fff; }
.sidebar .spacer { flex: 1; }
.sidebar .who {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 14px;
  font-size: 0.8rem;
  color: #B7C2D6;
}
.sidebar .who .name { color: #fff; font-weight: 600; display: block; margin-bottom: 2px; }
.sidebar .who form { margin-top: 6px; }
.sidebar .who button {
  background: none; border: none; padding: 0; cursor: pointer;
  color: #B7C2D6; font-size: 0.8rem; text-decoration: underline;
  font-family: inherit;
}
.sidebar .who button:hover { color: #fff; }

.main { flex: 1; min-width: 0; padding: 30px 40px 60px; }
.main-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 22px; gap: 16px; flex-wrap: wrap;
}
.main-head .eyebrow {
  text-transform: uppercase; letter-spacing: 0.07em; font-size: 0.72rem;
  color: var(--ink-faint); font-weight: 700; margin-bottom: 2px; display: block;
}

/* ---------- cards / surfaces ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
}
.card + .card { margin-top: 18px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: inherit; font-size: 0.875rem; font-weight: 600;
  padding: 8px 16px; border-radius: var(--radius-sm); border: 1px solid transparent;
  cursor: pointer; text-decoration: none; transition: filter 0.12s, background 0.12s;
}
.btn:hover { text-decoration: none; filter: brightness(1.05); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #C36F22; }
.btn-ghost { background: transparent; color: var(--ink-soft); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-alt); }

/* ---------- forms ---------- */
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 0.75rem; font-weight: 600; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.04em; }
input[type="text"], input[type="password"], input[type="search"] {
  font-family: inherit; font-size: 0.9rem; padding: 8px 11px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--ink);
  transition: border-color 0.12s, box-shadow 0.12s;
}
input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
select { font-family: inherit; font-size: 0.9rem; padding: 7px 10px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); }select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }.flash-success { background: var(--success-soft); color: var(--success); font-size: 0.875rem; font-weight: 600; padding: 10px 16px; border-radius: var(--radius-sm); margin-bottom: 18px; }

form.search-bar { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 20px; }
form.search-bar .field { min-width: 200px; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
table.data th {
  text-align: left; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--ink-faint); font-weight: 700; padding: 0 12px 10px; border-bottom: 2px solid var(--border);
}
table.data td { padding: 11px 12px; border-bottom: 1px solid var(--border); }
table.data tbody tr:hover { background: var(--surface-alt); }
table.data tbody tr:last-child td { border-bottom: none; }
table.data td a { color: var(--ink); font-weight: 600; }
table.data td a:hover { color: var(--accent); }

/* ---------- detail grid ---------- */
.detail-grid { display: grid; grid-template-columns: repeat(2, minmax(240px, 1fr)); gap: 16px 32px; }
.detail-grid .item span.label {
  display: block; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--ink-faint); font-weight: 700; margin-bottom: 3px;
}
.detail-grid .item span.value { font-size: 0.9375rem; }
.section-heading {
  font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--brand); margin: 26px 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.section-heading:first-child { margin-top: 0; }

/* ---------- badges ---------- */
.badge {
  display: inline-flex; align-items: center; font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em; padding: 2px 8px; border-radius: 100px;
}
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-critical { background: var(--critical-soft); color: var(--critical); }
.badge-neutral { background: var(--surface-alt); color: var(--ink-soft); }

.empty-state { color: var(--ink-faint); padding: 32px 0; text-align: center; font-size: 0.9rem; }

.back-link { display: inline-block; margin-bottom: 16px; font-size: 0.875rem; font-weight: 600; }

/* ---------- login ---------- */
.login-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, var(--brand-deep), var(--brand) 65%);
}
.login-card {
  background: var(--surface); border-radius: 12px; box-shadow: 0 20px 60px rgba(10, 20, 45, 0.35);
  padding: 40px 38px; width: 340px;
}
.login-card .wordmark { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; color: var(--brand); }
.login-card .wordmark span { font-size: 1.2rem; font-weight: 800; letter-spacing: -0.01em; }
.login-card .field { margin-bottom: 16px; }
.login-card .btn-primary { width: 100%; justify-content: center; padding: 10px; }
.login-error {
  background: var(--critical-soft); color: var(--critical); font-size: 0.825rem;
  padding: 9px 12px; border-radius: var(--radius-sm); margin-bottom: 16px;
}
.powered-by {
  text-align: center; margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--border);
  font-size: 0.72rem; color: var(--ink-faint); letter-spacing: 0.02em;
}
.powered-by strong { color: var(--ink-soft); font-weight: 700; }

@media (max-width: 860px) {
  .app-shell { flex-direction: column; }
  .sidebar { width: auto; flex-direction: row; align-items: center; padding: 10px 16px; }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; }
  .sidebar .spacer { display: none; }
  .sidebar .who { border-top: none; padding-top: 0; margin-left: auto; }
  .main { padding: 22px 20px 40px; }
  .detail-grid { grid-template-columns: 1fr; }
}