/* ============================================================
   AS SERVICIOS - HOJA DE ESTILOS GLOBAL
   ============================================================
   Linea visual definida desde el dia 1 para mantener
   consistencia entre todos los modulos.
   ============================================================ */

/* --------------------------------------------------
   1) VARIABLES DE COLOR
   -------------------------------------------------- */
:root {
  /* Fondos */
  --bg-app:        #f3f4f6;   /* gris muy claro */
  --bg-card:       #ffffff;
  --bg-topbar:     #1e3a5f;   /* azul oscuro sobrio */
  --bg-sidebar:    #1e293b;
  --bg-input:      #ffffff;
  --bg-hover:      #f9fafb;

  /* Bordes */
  --border:        #e5e7eb;
  --border-strong: #d1d5db;

  /* Texto */
  --text-main:     #1f2937;
  --text-soft:     #6b7280;
  --text-light:    #9ca3af;
  --text-on-dark:  #f3f4f6;

  /* Color principal (azul sobrio) */
  --primary:       #2563eb;
  --primary-dark:  #1d4ed8;
  --primary-soft:  #dbeafe;

  /* Estados */
  --success:       #16a34a;
  --success-bg:    #dcfce7;
  --warning:       #d97706;
  --warning-bg:    #fef3c7;
  --danger:        #dc2626;
  --danger-bg:     #fee2e2;
  --info:          #0891b2;
  --info-bg:       #cffafe;

  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 2px 6px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.10);

  /* Radios */
  --radius-sm: 4px;
  --radius:    6px;
  --radius-lg: 8px;

  /* Tipografia */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* --------------------------------------------------
   2) RESET BASICO
   -------------------------------------------------- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-main);
  background: var(--bg-app);
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { margin: 0 0 12px; color: var(--text-main); font-weight: 600; }
h1 { font-size: 22px; }
h2 { font-size: 18px; }
h3 { font-size: 16px; }
h4 { font-size: 14px; }

p { margin: 0 0 10px; }

/* --------------------------------------------------
   3) LAYOUT GENERAL
   -------------------------------------------------- */
.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 230px;
  background: var(--bg-sidebar);
  color: var(--text-on-dark);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  letter-spacing: 0.3px;
}

.sidebar-section {
  padding: 14px 20px 6px;
  font-size: 11px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.5px;
}

.sidebar-link {
  display: block;
  padding: 9px 20px;
  color: rgba(255,255,255,0.78);
  font-size: 13.5px;
  border-left: 3px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
.sidebar-link:hover {
  background: rgba(255,255,255,0.05);
  color: #fff;
  text-decoration: none;
}
.sidebar-link.active {
  background: rgba(37, 99, 235, 0.18);
  color: #fff;
  border-left-color: var(--primary);
}

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

.topbar {
  background: var(--bg-topbar);
  color: #fff;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}
.topbar-titulo { font-size: 16px; font-weight: 600; }
.topbar-user {
  display: flex; align-items: center; gap: 14px;
  font-size: 13px;
}
.topbar-user a { color: #fff; text-decoration: underline; opacity: 0.85; }
.topbar-user a:hover { opacity: 1; }

.content {
  padding: 22px 24px;
  flex: 1;
}

/* --------------------------------------------------
   4) TARJETAS (CARDS)
   -------------------------------------------------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin: -18px -18px 14px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  background: #fafbfc;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}
.card-header h2, .card-header h3 { margin: 0; }

/* Tarjetas pequenas KPI */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.kpi {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}
.kpi-label { font-size: 12px; color: var(--text-soft); text-transform: uppercase; letter-spacing: 0.4px; }
.kpi-valor { font-size: 22px; font-weight: 700; color: var(--text-main); margin-top: 4px; }
.kpi.kpi-success .kpi-valor { color: var(--success); }
.kpi.kpi-danger  .kpi-valor { color: var(--danger); }
.kpi.kpi-warning .kpi-valor { color: var(--warning); }
.kpi.kpi-info    .kpi-valor { color: var(--info); }

/* --------------------------------------------------
   5) BOTONES
   -------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 13.5px;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s, border-color .15s, color .15s;
  text-decoration: none;
  line-height: 1.3;
}
.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

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

.btn-secondary {
  background: #fff;
  color: var(--text-main);
  border-color: var(--border-strong);
}
.btn-secondary:hover { background: var(--bg-hover); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; color: #fff; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; color: #fff; }

.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #b45309; color: #fff; }

.btn-sm { padding: 5px 10px; font-size: 12.5px; }
.btn-lg { padding: 11px 22px; font-size: 15px; }

.btn-link {
  background: transparent;
  color: var(--primary);
  padding: 4px 8px;
  border: none;
}
.btn-link:hover { background: var(--primary-soft); text-decoration: none; }

/* --------------------------------------------------
   6) FORMULARIOS
   -------------------------------------------------- */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 6px;
}

.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 5px;
}
.form-label .req { color: var(--danger); margin-left: 2px; }

.form-control,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="tel"],
input[type="url"],
input[type="search"],
select,
textarea {
  width: 100%;
  padding: 8px 11px;
  font-size: 13.5px;
  font-family: var(--font);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg-input);
  color: var(--text-main);
  transition: border-color .15s, box-shadow .15s;
}
.form-control:focus,
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

textarea { min-height: 70px; resize: vertical; }

.form-help {
  font-size: 12px;
  color: var(--text-soft);
  margin-top: 3px;
}

.form-actions {
  margin-top: 18px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* --------------------------------------------------
   7) TABLAS
   -------------------------------------------------- */
.tabla-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tabla {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.tabla th {
  text-align: left;
  padding: 10px 12px;
  background: #f9fafb;
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  font-size: 12.5px;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
}
.tabla td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.tabla tbody tr:hover { background: var(--bg-hover); }
.tabla .acciones { white-space: nowrap; text-align: right; }
.tabla .acciones a, .tabla .acciones button {
  margin-left: 4px;
}

/* --------------------------------------------------
   8) ETIQUETAS DE ESTADO (badges)
   -------------------------------------------------- */
.badge {
  display: inline-block;
  padding: 3px 9px;
  font-size: 11.5px;
  font-weight: 600;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger); }
.badge-info    { background: var(--info-bg);    color: var(--info); }
.badge-neutral { background: #e5e7eb;           color: var(--text-main); }

/* --------------------------------------------------
   9) ALERTAS (mensajes flash)
   -------------------------------------------------- */
.alert {
  padding: 11px 14px;
  border-radius: var(--radius);
  margin-bottom: 14px;
  font-size: 13.5px;
  border: 1px solid transparent;
}
.alert-exito,
.alert-success { background: var(--success-bg); color: #14532d; border-color: #bbf7d0; }
.alert-error,
.alert-danger  { background: var(--danger-bg);  color: #7f1d1d; border-color: #fecaca; }
.alert-aviso,
.alert-warning { background: var(--warning-bg); color: #78350f; border-color: #fde68a; }
.alert-info    { background: var(--info-bg);    color: #155e75; border-color: #a5f3fc; }

/* --------------------------------------------------
   10) PAGINA DE LOGIN
   -------------------------------------------------- */
.login-bg {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
  padding: 20px;
}
.login-card {
  background: #fff;
  width: 100%;
  max-width: 380px;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-lg);
}
.login-titulo {
  text-align: center;
  margin-bottom: 6px;
  font-size: 20px;
  color: var(--text-main);
  font-weight: 700;
}
.login-subtitulo {
  text-align: center;
  color: var(--text-soft);
  font-size: 13px;
  margin-bottom: 22px;
}
.login-card .form-group { margin-bottom: 14px; }
.login-card .btn-primary { width: 100%; padding: 10px; font-size: 14px; }
.login-foot {
  text-align: center;
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-light);
}

/* --------------------------------------------------
   11) UTILIDADES
   -------------------------------------------------- */
.text-soft { color: var(--text-soft); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-right { text-align: right; }
.text-center { text-align: center; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 6px; }
.mt-2 { margin-top: 12px; }
.mt-3 { margin-top: 18px; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 6px; }
.mb-2 { margin-bottom: 12px; }
.mb-3 { margin-bottom: 18px; }

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.toolbar .filtros {
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
}
.toolbar .filtros input,
.toolbar .filtros select {
  width: auto;
  min-width: 160px;
}

.empty-state {
  text-align: center;
  padding: 36px 20px;
  color: var(--text-soft);
}

/* --------------------------------------------------
   12) RESPONSIVE - CELULAR
   -------------------------------------------------- */
@media (max-width: 880px) {
  .layout { flex-direction: column; }
  .sidebar {
    width: 100%;
    height: auto;
    position: static;
    overflow-y: visible;
  }
  .sidebar-brand {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
  }
  .sidebar-menu {
    display: none;
    border-top: 1px solid rgba(255,255,255,0.08);
  }
  .sidebar.open .sidebar-menu { display: block; }
  .sidebar-toggle {
    background: none;
    border: 0;
    color: #fff;
    font-size: 22px;
    cursor: pointer;
  }
  .sidebar-link { padding: 11px 20px; }

  .topbar { padding: 10px 14px; }
  .content { padding: 14px; }
  .card { padding: 14px; }
  .form-row { grid-template-columns: 1fr; }

  .topbar-titulo { font-size: 14px; }
  .topbar-user { font-size: 12px; gap: 8px; }

  .tabla th, .tabla td { padding: 8px; font-size: 12.5px; }
}

@media (max-width: 480px) {
  .topbar-user .saludo { display: none; }
}

/* --------------------------------------------------
   13) FOOTER MINIMO
   -------------------------------------------------- */
.app-footer {
  padding: 14px 24px;
  text-align: center;
  font-size: 11.5px;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  background: #fff;
}