:root {
  --bg: #f8f9fa;
  --surface: #ffffff;
  --border: #dee2e6;
  --text: #212529;
  --text-muted: #6c757d;
  --accent: #1a3a5c;
  --accent-light: #e8f0fe;
  --danger: #dc3545;
  --success: #198754;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

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

/* ---------- Nav institucional ---------- */
.nav {
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.nav__brand {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav__brand strong {
  font-size: 1rem;
  letter-spacing: 0.03em;
}

.nav__brand span {
  font-size: 0.72rem;
  color: #cfe0f2;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav__links a, .nav__links button {
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  background: none;
  border: 1px solid rgba(255,255,255,0.4);
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
}

.nav__links a:hover, .nav__links button:hover {
  background: rgba(255,255,255,0.12);
}

.nav__user {
  font-size: 0.85rem;
  color: #cfe0f2;
}

/* ---------- Contenedores ---------- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}

.page-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.page-header h1 {
  font-size: 1.35rem;
  margin: 0;
  color: var(--accent);
}

.badge-count {
  background: var(--accent-light);
  color: var(--accent);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* ---------- Card / secciones tipo documento ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.section-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--accent);
  border-bottom: 2px solid var(--accent-light);
  padding-bottom: 0.5rem;
  margin: 0 0 1rem 0;
}

/* ---------- Formularios ---------- */
label, .field-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.3rem;
}

input[type="text"],
input[type="date"],
input[type="number"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 0.92rem;
}

textarea { resize: vertical; min-height: 4.5rem; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.field {
  margin-bottom: 0.9rem;
}

.field.error input,
.field.error select,
.field.error textarea {
  border-color: var(--danger);
}

.field-error {
  color: var(--danger);
  font-size: 0.78rem;
  margin-top: 0.25rem;
  display: none;
}

.field.error .field-error {
  display: block;
}

.grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.checkbox-group, .radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-top: 0.25rem;
}

.checkbox-group label, .radio-group label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-transform: none;
  font-weight: 400;
  font-size: 0.88rem;
  color: var(--text);
  margin-bottom: 0;
}

.checkbox-group input, .radio-group input {
  width: auto;
}

.condicional {
  margin-top: 0.6rem;
  display: none;
}

.condicional.visible {
  display: block;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  border-radius: 4px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  font-family: inherit;
}

.btn:hover { opacity: 0.92; }

.btn-secondary {
  background: var(--surface);
  color: var(--accent);
}

.btn-danger {
  background: var(--surface);
  color: var(--danger);
  border-color: var(--danger);
}

.btn-danger:hover { background: var(--danger); color: #fff; }

.actions-bar {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.filters {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.filters input, .filters select {
  width: auto;
  min-width: 160px;
}

/* ---------- Tabla ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
}

thead th {
  text-align: left;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
  padding: 0.6rem 0.75rem;
}

tbody td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

tbody tr.row-link {
  cursor: pointer;
}

tbody tr.row-link:hover {
  background: var(--accent-light);
}

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

.tag {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.tag--correctos { background: #d4edda; color: var(--success); }
.tag--discrepantes { background: #fff3cd; color: #8a6100; }
.tag--no-localizado { background: #f8d7da; color: var(--danger); }
.tag--default { background: var(--border); color: var(--text-muted); }

/* ---------- Paginación ---------- */
.pagination {
  display: flex;
  gap: 0.4rem;
  justify-content: center;
  margin-top: 1.25rem;
}

.pagination a, .pagination span {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  text-decoration: none;
  color: var(--text);
  font-size: 0.85rem;
}

.pagination .active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ---------- Detalle ---------- */
.detalle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.9rem;
}

.detalle-item .field-label { margin-bottom: 0.15rem; }
.detalle-item .valor {
  font-size: 0.92rem;
  color: var(--text);
}
.detalle-item .valor:empty::after {
  content: "—";
  color: var(--text-muted);
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  width: 100%;
  max-width: 360px;
}

.login-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.login-header strong {
  display: block;
  color: var(--accent);
  font-size: 1.1rem;
}

.login-header span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.login-error {
  background: #f8d7da;
  color: var(--danger);
  padding: 0.6rem 0.75rem;
  border-radius: 4px;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  display: none;
}

.login-error.visible { display: block; }

.footer-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 1rem;
}

/* ---------- Impresión ---------- */
@media print {
  .nav, .actions-bar, .no-print, .pagination {
    display: none !important;
  }
  body { background: #fff; }
  .container { max-width: 100%; padding: 0; }
  .card { border: 1px solid #999; break-inside: avoid; }
}