/* ============ Variables y base ============ */
:root {
  --tinta-950: #0b1220;
  --tinta-900: #101a2e;
  --tinta-800: #16213b;
  --primario: #1d5fd6;
  --primario-oscuro: #1650b8;
  --primario-claro: #eaf1fd;
  --verde: #059669;
  --verde-bg: #ecfdf5;
  --amarillo: #b45309;
  --amarillo-bg: #fffbeb;
  --rojo: #dc2626;
  --rojo-bg: #fef2f2;
  --gris-50: #f8fafc;
  --gris-100: #f1f5f9;
  --gris-200: #e2e8f0;
  --gris-400: #94a3b8;
  --gris-500: #64748b;
  --gris-700: #334155;
  --gris-900: #0f172a;
  --blanco: #ffffff;
  --radio: 12px;
  --radio-sm: 8px;
  --sombra: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --sombra-md: 0 4px 12px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--gris-50);
  color: var(--gris-900);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
code {
  background: var(--gris-100);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12.5px;
}

/* ============ Iconos ============ */
.icono-svg { width: 18px; height: 18px; flex-shrink: 0; }
.icono-svg-lg { width: 28px; height: 28px; }
.icono-svg-xl { width: 40px; height: 40px; }

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

.sidebar {
  width: 246px;
  flex-shrink: 0;
  background: linear-gradient(165deg, #163f97 0%, var(--primario) 60%, #2a6fe0 100%);
  color: #dbe6fb;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  border-right: 1px solid rgba(255,255,255,0.08);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
  min-height: 68px;
}
.sidebar-brand img.brand-logo-img { max-height: 32px; max-width: 190px; object-fit: contain; }
.sidebar-brand .brand-fallback { display: flex; align-items: center; gap: 10px; color: #ffffff; font-size: 15.5px; font-weight: 700; letter-spacing: -0.01em; }
.sidebar-brand .brand-fallback .icono-svg { color: #ffffff; width: 22px; height: 22px; }

.sidebar-nav { flex: 1; padding: 14px 10px; display: flex; flex-direction: column; gap: 1px; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 13px;
  border-radius: var(--radio-sm);
  color: #dbe6fb;
  font-size: 13.3px;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.sidebar-nav a .icono-svg { color: #b7cbf5; transition: color .15s; }
.sidebar-nav a:hover { background: rgba(255,255,255,0.12); color: #ffffff; }
.sidebar-nav a:hover .icono-svg { color: #ffffff; }
.sidebar-nav a.active { background: #ffffff; color: var(--primario-oscuro); font-weight: 700; }
.sidebar-nav a.active .icono-svg { color: var(--primario-oscuro); }

.sidebar-footer { padding: 12px 10px 18px; border-top: 1px solid rgba(255,255,255,0.14); }
.logout-link { display: flex; align-items: center; gap: 11px; padding: 10px 13px; border-radius: var(--radio-sm); color: #dbe6fb; font-size: 13.3px; font-weight: 500; }
.logout-link:hover { background: rgba(255,255,255,0.12); color: #ffffff; }

.main-area { margin-left: 246px; flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
  background: var(--blanco);
  border-bottom: 1px solid var(--gris-200);
  padding: 16px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.page-title { font-size: 18px; font-weight: 700; margin: 0; color: var(--gris-900); letter-spacing: -0.01em; }
.topbar-user { display: flex; align-items: center; gap: 10px; }
.user-avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--primario-claro); color: var(--primario);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 12.5px;
}
.user-name { font-weight: 600; font-size: 13.3px; color: var(--gris-700); }

.content { padding: 24px 30px 50px; }

/* ============ Alertas ============ */
.alert { padding: 12px 16px; border-radius: var(--radio-sm); margin-bottom: 18px; font-size: 13.3px; border: 1px solid transparent; }
.alert-exito, .alert-success { background: var(--verde-bg); color: #065f46; border-color: #a7f3d0; }
.alert-error, .alert-danger { background: var(--rojo-bg); color: #991b1b; border-color: #fecaca; }
.alert-info { background: var(--primario-claro); color: #3730a3; border-color: #c7d2fe; }
.alert-warning { background: var(--amarillo-bg); color: #92400e; border-color: #fde68a; }

/* ============ Tarjetas ============ */
.card {
  background: var(--blanco);
  border-radius: var(--radio);
  border: 1px solid var(--gris-200);
  box-shadow: var(--sombra);
  padding: 22px 24px;
  margin-bottom: 20px;
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; flex-wrap: wrap; gap: 10px; }
.card-header h2 { font-size: 15.5px; margin: 0; font-weight: 700; letter-spacing: -0.01em; }
.card-subtitle { color: var(--gris-500); font-size: 12.8px; margin: -12px 0 18px; }

/* ============ KPIs Dashboard ============ */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 22px; }
.kpi-card {
  background: var(--blanco);
  border-radius: var(--radio);
  border: 1px solid var(--gris-200);
  box-shadow: var(--sombra);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.kpi-top { display: flex; align-items: center; justify-content: space-between; }
.kpi-icon-wrap { width: 34px; height: 34px; border-radius: 9px; display: flex; align-items: center; justify-content: center; background: var(--primario-claro); color: var(--primario); }
.kpi-card.kpi-warning .kpi-icon-wrap { background: var(--amarillo-bg); color: var(--amarillo); }
.kpi-card.kpi-danger .kpi-icon-wrap { background: var(--rojo-bg); color: var(--rojo); }
.kpi-card.kpi-success .kpi-icon-wrap { background: var(--verde-bg); color: var(--verde); }
.kpi-label { font-size: 12.3px; color: var(--gris-500); font-weight: 600; }
.kpi-value { font-size: 26px; font-weight: 800; color: var(--gris-900); letter-spacing: -0.02em; }
.kpi-sub { font-size: 11.8px; color: var(--gris-400); }

@media (max-width: 1100px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }

/* ============ Tablas ============ */
.table-wrap { overflow-x: auto; }
table.tabla { width: 100%; border-collapse: collapse; font-size: 13.3px; }
table.tabla th {
  text-align: left;
  background: var(--gris-50);
  padding: 10px 14px;
  font-weight: 700;
  font-size: 11.8px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--gris-500);
  border-bottom: 1px solid var(--gris-200);
  white-space: nowrap;
}
table.tabla td { padding: 11px 14px; border-bottom: 1px solid var(--gris-100); vertical-align: middle; }
table.tabla tr:hover td { background: var(--gris-50); }
table.tabla tr.fila-vencida td { background: #fef7f7; }
table.tabla tr.fila-por-vencer td { background: #fffcf5; }

/* ============ Badges ============ */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; letter-spacing: .01em; }
.badge-success { background: var(--verde-bg); color: #065f46; }
.badge-warning { background: var(--amarillo-bg); color: #92400e; }
.badge-danger { background: var(--rojo-bg); color: #991b1b; }
.badge-info { background: var(--primario-claro); color: #3730a3; }
.badge-muted { background: var(--gris-100); color: var(--gris-500); }

/* ============ Botones ============ */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px;
  border-radius: var(--radio-sm);
  font-size: 13.3px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: filter .15s, background .15s, border-color .15s;
  font-family: inherit;
}
.btn-primary { background: var(--primario); color: #fff; }
.btn-primary:hover { background: var(--primario-oscuro); }
.btn-secondary { background: var(--blanco); color: var(--gris-700); border-color: var(--gris-200); }
.btn-secondary:hover { background: var(--gris-50); border-color: var(--gris-400); }
.btn-danger { background: var(--rojo); color: #fff; }
.btn-danger:hover { filter: brightness(.92); }
.btn-sm { padding: 6px 11px; font-size: 12.3px; }
.btn-icon { padding: 6px 9px; }

.acciones { display: flex; gap: 6px; }

/* ============ Formularios ============ */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 20px; }
.form-grid.una-col { grid-template-columns: 1fr; }
.campo { display: flex; flex-direction: column; gap: 6px; }
.campo label { font-size: 12.8px; font-weight: 600; color: var(--gris-700); }
.campo .ayuda { font-size: 11.8px; color: var(--gris-400); }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=tel], input[type=file], select, textarea {
  padding: 9px 12px;
  border: 1px solid var(--gris-200);
  border-radius: var(--radio-sm);
  font-size: 13.3px;
  font-family: inherit;
  color: var(--gris-900);
  background: var(--blanco);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primario);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.12);
}
textarea { resize: vertical; min-height: 80px; }
.form-actions { display: flex; gap: 10px; margin-top: 22px; }

@media (max-width: 800px) { .form-grid { grid-template-columns: 1fr; } }

/* ============ Filtros ============ */
.filtros { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; align-items: flex-end; }
.filtros .campo { min-width: 170px; }

/* ============ Login (split 50/50) ============ */
.login-shell { min-height: 100vh; display: flex; font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
.login-visual {
  flex: 1;
  background: linear-gradient(155deg, #0e1f45 0%, #163f97 45%, var(--primario) 100%);
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 48px;
  overflow: hidden;
}
.login-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.login-visual::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(255,255,255,0.08), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(255,255,255,0.06), transparent 45%);
}
.login-visual-caption { position: relative; z-index: 2; color: #ffffff; max-width: 380px; }
.login-visual-caption .icono-svg-xl { color: #a9c6fb; margin-bottom: 18px; }
.login-visual-caption h2 { font-size: 24px; font-weight: 700; margin: 0 0 10px; letter-spacing: -0.02em; }
.login-visual-caption p { font-size: 14px; color: #cbd5e1; line-height: 1.6; margin: 0; }

.login-form-side { width: 460px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--blanco); padding: 40px; }
.login-form-inner { width: 100%; max-width: 320px; }
.login-brand-mark { display: flex; align-items: center; gap: 10px; margin-bottom: 34px; }
.login-brand-mark img { max-height: 34px; max-width: 200px; object-fit: contain; }
.login-brand-mark .icono-svg { width: 24px; height: 24px; color: var(--primario); }
.login-brand-mark span { font-size: 16px; font-weight: 700; color: var(--gris-900); letter-spacing: -0.01em; }
.login-form-inner h1 { font-size: 20px; font-weight: 700; margin: 0 0 6px; letter-spacing: -0.01em; }
.login-form-inner .login-sub { color: var(--gris-500); font-size: 13.3px; margin: 0 0 26px; }
.login-form-inner .campo { margin-bottom: 16px; }
.login-form-inner .btn { width: 100%; justify-content: center; margin-top: 6px; padding: 10px 16px; }

@media (max-width: 880px) {
  .login-visual { display: none; }
  .login-form-side { width: 100%; }
}

/* ============ Configuración: subida de imágenes ============ */
.upload-row { display: flex; align-items: center; gap: 16px; }
.upload-preview {
  width: 90px; height: 90px; border-radius: var(--radio-sm);
  border: 1px dashed var(--gris-200); background: var(--gris-50);
  display: flex; align-items: center; justify-content: center; overflow: hidden; flex-shrink: 0;
}
.upload-preview img { width: 100%; height: 100%; object-fit: contain; }
.upload-preview .icono-svg { color: var(--gris-400); }
.upload-preview-wide { width: 160px; height: 90px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--gris-200); margin-bottom: 22px; }
.tab-link { padding: 10px 16px; font-size: 13.3px; font-weight: 600; color: var(--gris-500); border-bottom: 2px solid transparent; }
.tab-link.active { color: var(--primario); border-bottom-color: var(--primario); }

/* ============ Utilidades ============ */
.texto-muted { color: var(--gris-400); }
.texto-centro { text-align: center; }
.vacio { text-align: center; padding: 44px 20px; color: var(--gris-400); }
.vacio .icono-svg-xl { color: var(--gris-200); margin-bottom: 10px; }
.chip-count { background: var(--gris-100); padding: 2px 9px; border-radius: 20px; font-size: 11.5px; font-weight: 700; color: var(--gris-500); }

/* Barra simple para el gráfico del dashboard */
.barra-grupo { display: flex; align-items: flex-end; gap: 14px; height: 160px; padding-top: 10px; }
.barra-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 8px; height: 100%; }
.barra-visual { width: 100%; max-width: 46px; border-radius: 6px 6px 0 0; background: var(--primario); transition: height .3s; }
.barra-label { font-size: 12px; color: var(--gris-500); text-align: center; }
.barra-valor { font-size: 13px; font-weight: 700; }