/* ===== Paleta sofisticada ===== */
:root {
  --ink: #1f2733;              /* azul pizarra profundo */
  --ink-2: #2a3442;
  --ink-3: #39485a;
  --bronze: #b08d57;           /* bronce apagado */
  --bronze-soft: #d9c4a3;
  --line: #e3e0da;             /* borde neutro cálido */
  --paper: #f6f5f2;            /* fondo general */
  --card: #ffffff;
  --text: #2b313b;
  --muted: #8a8f98;
  --bs-primary: #39485a;
  --bs-primary-rgb: 57, 72, 90;
  --bs-success: #6e8b7d;
  --bs-success-rgb: 110, 139, 125;
  --bs-info: #7f98a6;
  --bs-info-rgb: 127, 152, 166;
  --bs-danger: #b06a5a;
  --bs-danger-rgb: 176, 106, 90;
  --bs-warning: #c9a86a;
  --bs-warning-rgb: 201, 168, 106;
  --bs-secondary: #9aa3ad;
  --bs-secondary-rgb: 154, 163, 173;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

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

.sidebar {
  width: 240px;
  min-width: 240px;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  color: #cfd6df;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 22px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: #f2f0ea;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-brand i {
  color: var(--bronze-soft);
  font-size: 22px;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 8px;
  color: #b7bfca;
  font-weight: 500;
  text-decoration: none;
  font-size: 14px;
  transition: background 0.18s ease, color 0.18s ease;
}

.sidebar-nav .nav-link i {
  width: 20px;
  text-align: center;
  font-size: 15px;
  color: #8e99a8;
}

.sidebar-nav .nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #f2f0ea;
}

.sidebar-nav .nav-link.active {
  background: rgba(176, 141, 87, 0.18);
  color: #f2f0ea;
}

.sidebar-nav .nav-link.active i {
  color: var(--bronze-soft);
}

.sidebar-footer {
  padding: 16px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bronze);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 15px;
  flex-shrink: 0;
}

.user-meta {
  min-width: 0;
}

.user-name {
  font-size: 13px;
  color: #e6e9ee;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.btn-logout {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #b7bfca;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s ease;
}

.btn-logout:hover {
  border-color: var(--bronze-soft);
  color: var(--bronze-soft);
}

.content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 28px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.topbar-brand i {
  color: var(--bronze);
}

.main {
  flex: 1;
  padding: 30px 34px;
}

/* ===== Tipografía ===== */
h1, h2, h3, h4, h5 {
  color: var(--ink);
  font-weight: 600;
}

h2 {
  font-size: 22px;
  letter-spacing: 0.2px;
}

/* ===== Cabecera de página ===== */
.page-head {
  margin-bottom: 24px;
}

.page-head h2 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.2px;
}

.page-head .page-sub {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

/* ===== Tarjetas de métricas ===== */
.metric-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 22px;
  box-shadow: 0 1px 2px rgba(31, 39, 51, 0.04);
}

.metric-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.icon-ink { background: rgba(57, 72, 90, 0.12); color: var(--ink); }
.icon-bronze { background: rgba(176, 141, 87, 0.16); color: var(--bronze); }
.icon-teal { background: rgba(127, 152, 166, 0.18); color: var(--info-teal, #5c7a8a); }

.metric-body {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 2px;
}

.metric-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--ink);
}

/* ===== Tarjetas ===== */
.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  box-shadow: 0 1px 2px rgba(31, 39, 51, 0.04);
}

.card-header {
  background: #faf9f6;
  border-bottom: 1px solid var(--line);
  font-weight: 600;
  color: var(--ink);
}

/* ===== Botones ===== */
.btn {
  border-radius: 8px;
  font-weight: 500;
}

.btn-primary {
  background: var(--ink-2);
  border-color: var(--ink-2);
  color: #fff;
}
.btn-primary:hover {
  background: var(--ink-3);
  border-color: var(--ink-3);
  color: #fff;
}

.btn-success {
  background: var(--success-bg, #eef3ee);
  border-color: var(--success-bg, #eef3ee);
  color: var(--ink);
}
.btn-success:hover {
  background: #dce8dd;
  border-color: #dce8dd;
  color: var(--ink);
}

.btn-outline-primary {
  color: var(--ink-2);
  border-color: #b9c1cc;
}
.btn-outline-primary:hover {
  background: var(--ink-2);
  border-color: var(--ink-2);
  color: #fff;
}

.btn-outline-danger {
  color: var(--bs-danger);
  border-color: #d8b0a6;
}
.btn-outline-danger:hover {
  background: var(--bs-danger);
  border-color: var(--bs-danger);
  color: #fff;
}

.btn:focus, .btn:active:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.2rem rgba(176, 141, 87, 0.25);
}

/* ===== Tablas ===== */
.table thead th {
  color: var(--muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  border-bottom: 1px solid var(--line);
  background: #faf9f6;
}

.table {
  --bs-table-bg: transparent;
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
  background-color: #fbfaf8;
}

.table-hover > tbody > tr:hover > * {
  background-color: #f4f1ea;
}

/* ===== Badges ===== */
.badge {
  font-weight: 500;
  padding: 0.35em 0.6em;
  border-radius: 6px;
}

.text-bg-success { background: #e2ece3 !important; color: #3f5c49 !important; }
.text-bg-secondary { background: #e6e8ea !important; color: #5c6470 !important; }

/* ===== Formularios ===== */
.form-control, .form-select {
  border-radius: 8px;
  border-color: #d5d8dd;
}
.form-control:focus, .form-select:focus {
  border-color: var(--bronze);
}

.form-label {
  font-weight: 500;
  font-size: 13px;
  color: var(--text);
}

/* ===== Alertas ===== */
.alert {
  border-radius: 10px;
}

/* ===== Login ===== */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(1200px 500px at 20% -10%, rgba(176, 141, 87, 0.12), transparent 60%),
    radial-gradient(1000px 500px at 90% 110%, rgba(57, 72, 90, 0.10), transparent 55%),
    var(--paper);
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 34px 30px;
  box-shadow: 0 12px 32px rgba(31, 39, 51, 0.08);
}

.auth-brand {
  text-align: center;
  margin-bottom: 24px;
}

.auth-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-2) 100%);
  color: var(--bronze-soft);
  font-size: 24px;
  margin-bottom: 12px;
}

.auth-brand h4 {
  margin: 0;
  font-size: 20px;
  color: var(--ink);
}

.auth-brand p {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.auth-hint {
  margin: 18px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}

/* ===== Alerts página login ===== */