/* Estilos base y reset (MANTENIDOS) */
:root {
  --primary-color: #3498db;
  --secondary-color: #2ecc71;
  --danger-color: #e74c3c;
  --warning-color: #f39c12;
  --dark-color: #2c3e50;
  --light-color: #ecf0f1;
  --gray-color: #95a5a6;
  --text-color: #333;
  --text-light: #fff;
  --border-radius: 4px;
  --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  background-color: #f5f5f5;
    background-image: url('https://adm.asdem.info/assets/images/background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    position: relative;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.7); /* Fondo blanco semitransparente */
    z-index: -1;
}

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

a:hover {
  color: #2980b9;
}



.row {
  margin: 0;
}



/* ============================================= */
/* ESTILOS MANTENIDOS (NO RELACIONADOS AL MENÚ) */
/* ============================================= */

/* Cards (MANTENIDOS) */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 20px;
  transition: var(--transition);
}

.card:hover {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.card-header {
  background-color: var(--primary-color);
  color: var(--text-light);
  border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
  font-weight: 600;
}

/* Buttons (MANTENIDOS) */
.btn {
  border-radius: var(--border-radius);
  padding: 8px 15px;
  font-weight: 500;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background-color: #2980b9;
  border-color: #2980b9;
}

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

.btn-secondary:hover {
  background-color: #27ae60;
  border-color: #27ae60;
}

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

.btn-danger:hover {
  background-color: #c0392b;
  border-color: #c0392b;
}

/* Forms (MANTENIDOS) */
.form-control {
  border-radius: var(--border-radius);
  padding: 10px 15px;
  border: 1px solid #ddd;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.form-label {
  font-weight: 500;
  margin-bottom: 5px;
}

/* Alerts (MANTENIDOS) */
.alert {
  border-radius: var(--border-radius);
  padding: 15px;
  margin-bottom: 20px;
  border: none;
}

.alert-danger {
  background-color: #fde8e8;
  color: var(--danger-color);
}

.alert-success {
  background-color: #e8fdf1;
  color: var(--secondary-color);
}

.alert-warning {
  background-color: #fff4e5;
  color: var(--warning-color);
}

/* Tables (MANTENIDOS) */
.table {
  width: 100%;
  margin-bottom: 1rem;
  color: var(--text-color);
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 12px 15px;
  vertical-align: middle;
  border-top: 1px solid #dee2e6;
}

.table thead th {
  vertical-align: bottom;
  border-bottom: 2px solid #dee2e6;
  background-color: #f8f9fa;
  font-weight: 600;
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(0, 0, 0, 0.02);
}

.table-hover tbody tr:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

/* Login page (MANTENIDOS) */
.login-page {
  
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-container {
  width: 100%;
  max-width: 400px;
}

.login-card {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  padding: 30px;
}

.textbox {
  width: 100%;
  padding: 12px 15px;
  margin-bottom: 15px;
  border: 1px solid #ddd;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.textbox:focus {
  border-color: var(--primary-color);
  outline: none;
}

/* Utility classes (MANTENIDOS) */
.text-center {
  text-align: center;
}

.text-muted {
  color: var(--gray-color);
}

.mb-3 {
  margin-bottom: 15px;
}

.mb-4 {
  margin-bottom: 20px;
}

.mt-3 {
  margin-top: 15px;
}

.mt-4 {
  margin-top: 20px;
}

.w-100 {
  width: 100%;
}

/* Custom scrollbar (MANTENIDO) */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #2980b9;
}