/* ==========================================================================
   Design tokens — "Ledger" theme: academic navy + brass, ledger-style tables
   ========================================================================== */
:root {
  --color-bg: #eef1f6;
  --color-surface: #ffffff;
  --color-ink: #16233d;
  --color-ink-soft: #45526b;
  --color-accent: #b8863b;
  --color-accent-dark: #8c6528;
  --color-success: #2f7d5b;
  --color-success-bg: #e7f4ed;
  --color-danger: #b0413e;
  --color-danger-bg: #fbeceb;
  --color-border: #d7dce3;
  --radius: 8px;
  --font-display: "Source Serif 4", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-figure: "IBM Plex Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-ink);
  font-weight: 600;
  margin: 0 0 0.5rem 0;
}

a { color: var(--color-accent-dark); }
a:hover { color: var(--color-accent); }

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

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

.navbar {
  background: var(--color-ink);
  color: #fff;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.navbar .brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.navbar .brand .brand-accent { color: var(--color-accent); }

.navbar nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  align-items: center;
}

.navbar nav a {
  color: #cdd6e6;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}

.navbar nav a:hover,
.navbar nav a.active {
  color: #fff;
  border-bottom-color: var(--color-accent);
}

.navbar form { margin: 0; }

.navbar .logout-btn {
  background: transparent;
  border: 1px solid #47526b;
  color: #cdd6e6;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.85rem;
}
.navbar .logout-btn:hover { border-color: var(--color-accent); color: #fff; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  width: 100%;
  flex: 1;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.75rem;
}

.page-header .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  color: var(--color-accent-dark);
  font-weight: 700;
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card h2, .card h3 { margin-top: 0; }

.grid {
  display: grid;
  gap: 1.5rem;
}
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}
.stat-card .stat-value {
  font-family: var(--font-figure);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-ink);
}
.stat-card .stat-label {
  font-size: 0.82rem;
  color: var(--color-ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------- Forms ---------- */
label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  margin-bottom: 0.3rem;
}

input[type="text"], input[type="number"], input[type="password"],
input[type="date"], input[type="email"], input[type="tel"], select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: #fff;
  color: var(--color-ink);
}
input:focus, select:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.field { margin-bottom: 1rem; }

.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 260px;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem;
}
.checkbox-list label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 400;
  color: var(--color-ink);
  margin: 0;
}
.checkbox-list input { width: auto; }

.btn {
  display: inline-block;
  background: var(--color-ink);
  color: #fff;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--color-accent-dark); color: #fff; }
.btn.btn-accent { background: var(--color-accent); }
.btn.btn-accent:hover { background: var(--color-accent-dark); }
.btn.btn-small { padding: 0.4rem 0.8rem; font-size: 0.82rem; }
.btn.btn-danger { background: var(--color-danger); }
.btn.btn-danger:hover { background: #8f322f; }

/* ---------- Typeahead search box ---------- */
.search-wrap { position: relative; }
.search-results {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 2px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  max-height: 240px;
  overflow-y: auto;
  z-index: 20;
  box-shadow: 0 6px 16px rgba(22, 35, 61, 0.12);
}
.search-results.active { display: block; }
.search-results .search-item {
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  font-size: 0.92rem;
}
.search-results .search-item:hover,
.search-results .search-item.highlighted { background: var(--color-bg); }
.search-results .search-empty {
  padding: 0.5rem 0.75rem;
  color: var(--color-ink-soft);
  font-size: 0.85rem;
}

/* ---------- Tables (ledger style) ---------- */
table.ledger {
  width: 100%;
  border-collapse: collapse;
}
table.ledger th {
  text-align: left;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-soft);
  border-bottom: 2px solid var(--color-ink);
  padding: 0.6rem 0.75rem;
}
table.ledger td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
table.ledger tr:hover td { background: #f7f9fc; }
table.ledger td.num, table.ledger th.num { text-align: right; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
}
.badge.positive { background: var(--color-success-bg); color: var(--color-success); }
.badge.negative { background: var(--color-danger-bg); color: var(--color-danger); }

/* ---------- Alerts ---------- */
.alert {
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  border: 1px solid transparent;
}
.alert.success { background: var(--color-success-bg); color: var(--color-success); border-color: #bfe3cf; }
.alert.error { background: var(--color-danger-bg); color: var(--color-danger); border-color: #f0c4c2; }

.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--color-ink-soft);
}

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
  .navbar { flex-direction: column; align-items: flex-start; }
  table.ledger, table.ledger thead, table.ledger tbody, table.ledger tr, table.ledger td, table.ledger th {
    display: block;
  }
  table.ledger thead { display: none; }
  table.ledger tr {
    margin-bottom: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
  }
  table.ledger td {
    border-bottom: none;
    padding: 0.35rem 0;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
  }
  table.ledger td.num { text-align: right; }
  table.ledger td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--color-ink-soft);
    font-size: 0.75rem;
    text-transform: uppercase;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}