/* =========================================================
Archivo: ad-admin.css
Ruta: /administrador/ad-css/ad-admin.css
Función:
- Estilos visuales del panel administrador.
- No depende de frameworks externos.
- Mantiene una interfaz clara, liviana y modular.
- Mantiene resaltada la opción activa del menú lateral.
========================================================= */

:root {
  --ad-bg: #f4f7fb;
  --ad-surface: #ffffff;
  --ad-surface-soft: #f8fafc;
  --ad-text: #102033;
  --ad-muted: #62748a;
  --ad-border: #dbe4ef;
  --ad-primary: #123c69;
  --ad-primary-strong: #0a2b4d;
  --ad-primary-soft: #e9f1fb;
  --ad-info: #1f6feb;
  --ad-success: #16803c;
  --ad-warning: #b86e00;
  --ad-danger: #b42318;
  --ad-danger-soft: #fff1f0;
  --ad-shadow: 0 16px 36px rgba(16, 32, 51, 0.08);
  --ad-radius: 18px;
  --ad-radius-sm: 12px;
  --ad-sidebar-width: 290px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--ad-bg);
  color: var(--ad-text);
  font-family: Arial, Helvetica, sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

[hidden] {
  display: none !important;
}

.ad-shell {
  display: grid;
  grid-template-columns: var(--ad-sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
}

.ad-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 18px;
  background: var(--ad-primary);
  color: #ffffff;
  overflow-y: auto;
}

.ad-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.ad-brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: #ffffff;
  color: var(--ad-primary);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.ad-brand h1 {
  margin: 0;
  font-size: 20px;
  line-height: 1.15;
}

.ad-brand p {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
}

.ad-nav {
  display: grid;
  gap: 8px;
}

.ad-nav a {
  padding: 12px 14px;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.82);
  transition:
    background 0.18s ease,
    color 0.18s ease,
    transform 0.18s ease;
}

.ad-nav a:hover,
.ad-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  outline: none;
  transform: translateX(2px);
}

.ad-nav a.is-active,
.ad-nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-weight: 700;
}

.ad-nav a.is-active:hover,
.ad-nav a.is-active:focus-visible,
.ad-nav a[aria-current="page"]:hover,
.ad-nav a[aria-current="page"]:focus-visible {
  background: rgba(255, 255, 255, 0.19);
}

.ad-view {
  min-width: 0;
}

.ad-main {
  min-width: 0;
  padding: 28px;
}

.ad-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 22px;
}

.ad-header h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.ad-header-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  min-width: 260px;
}

.ad-eyebrow {
  margin: 0 0 7px;
  color: var(--ad-info);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ad-muted {
  margin: 8px 0 0;
  color: var(--ad-muted);
  line-height: 1.55;
}

.ad-grid {
  display: grid;
  gap: 16px;
  margin-bottom: 18px;
}

.ad-grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.ad-card {
  background: var(--ad-surface);
  border: 1px solid var(--ad-border);
  border-radius: var(--ad-radius);
  box-shadow: var(--ad-shadow);
  padding: 18px;
}

.ad-kpi-card {
  min-height: 130px;
}

.ad-kpi-label {
  display: block;
  color: var(--ad-muted);
  font-size: 13px;
  margin-bottom: 12px;
}

.ad-kpi-card strong {
  display: block;
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1;
  letter-spacing: -0.04em;
}

.ad-kpi-card small {
  display: block;
  margin-top: 12px;
  color: var(--ad-muted);
}

.ad-section {
  margin-top: 22px;
  scroll-margin-top: 22px;
}

.ad-section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
  margin-bottom: 12px;
}

.ad-section h3 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.ad-danger-zone .ad-card {
  border-color: rgba(180, 35, 24, 0.28);
  background: linear-gradient(
    180deg,
    #ffffff 0%,
    var(--ad-danger-soft) 100%
  );
}

.ad-form-grid {
  display: grid;
  gap: 14px;
  align-items: end;
  margin-bottom: 16px;
}

.ad-form-grid-3 {
  grid-template-columns: 1fr 1fr auto;
}

.ad-form-grid-4 {
  grid-template-columns: 1fr 0.8fr 0.8fr auto;
}

label span {
  display: block;
  margin-bottom: 6px;
  color: var(--ad-text);
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--ad-border);
  border-radius: 12px;
  background: #ffffff;
  color: var(--ad-text);
  outline: none;
  transition:
    border 0.18s ease,
    box-shadow 0.18s ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--ad-info);
  box-shadow: 0 0 0 4px rgba(31, 111, 235, 0.12);
}

.ad-form-actions,
.ad-actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.ad-btn {
  min-height: 42px;
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 800;
  transition:
    transform 0.18s ease,
    filter 0.18s ease,
    box-shadow 0.18s ease;
}

.ad-btn:hover {
  transform: translateY(-1px);
  filter: brightness(0.98);
}

.ad-btn:active {
  transform: translateY(0);
}

.ad-btn-primary {
  background: var(--ad-primary);
  color: #ffffff;
  box-shadow: 0 10px 20px rgba(18, 60, 105, 0.18);
}

.ad-btn-secondary {
  background: var(--ad-primary-soft);
  color: var(--ad-primary);
}

.ad-btn-danger {
  background: var(--ad-danger);
  color: #ffffff;
  box-shadow: 0 10px 20px rgba(180, 35, 24, 0.18);
}

.ad-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.ad-badge-info {
  background: #e8f1ff;
  color: var(--ad-info);
}

.ad-badge-success {
  background: #e8f7ee;
  color: var(--ad-success);
}

.ad-badge-warning {
  background: #fff5e6;
  color: var(--ad-warning);
}

.ad-badge-danger {
  background: #fff1f0;
  color: var(--ad-danger);
}

.ad-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.ad-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.ad-table th,
.ad-table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--ad-border);
  text-align: left;
  vertical-align: top;
}

.ad-table th {
  color: var(--ad-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--ad-surface-soft);
}

.ad-table tr:last-child td {
  border-bottom: 0;
}

.ad-empty {
  color: var(--ad-muted);
  text-align: center;
}

.ad-result-box,
.ad-list-box,
.ad-diagnostic-box {
  min-height: 74px;
  margin: 12px 0 16px;
  padding: 14px;
  border: 1px dashed var(--ad-border);
  border-radius: var(--ad-radius-sm);
  background: var(--ad-surface-soft);
  color: var(--ad-muted);
  line-height: 1.55;
  white-space: pre-wrap;
}

.ad-diagnostic-box {
  min-height: 140px;
  font-family: Consolas, Monaco, monospace;
  font-size: 13px;
}

.ad-footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin: 28px 0 8px;
  padding: 16px 0 0;
  color: var(--ad-muted);
  font-size: 13px;
}

@media (max-width: 1180px) {
  .ad-grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ad-form-grid-4,
  .ad-form-grid-3 {
    grid-template-columns: 1fr 1fr;
  }

  .ad-form-actions {
    grid-column: 1 / -1;
  }
}

@media (max-width: 840px) {
  .ad-shell {
    grid-template-columns: 1fr;
  }

  .ad-sidebar {
    position: relative;
    width: 100%;
    height: auto;
  }

  .ad-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ad-main {
    padding: 18px;
  }

  .ad-header {
    flex-direction: column;
  }

  .ad-header-actions {
    justify-content: flex-start;
    min-width: 0;
  }

  .ad-grid-4,
  .ad-form-grid-4,
  .ad-form-grid-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .ad-nav {
    grid-template-columns: 1fr;
  }

  .ad-card {
    padding: 14px;
  }

  .ad-actions-row,
  .ad-form-actions {
    align-items: stretch;
  }

  .ad-btn {
    width: 100%;
  }
}