/* ==================== VARIABLES Y RESET ==================== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #ec4899;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --dark: #1a1a2e;
  --dark-light: #16213e;
  --gray: #6b7280;
  --gray-light: #f3f4f6;
  --white: #ffffff;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  color: var(--dark);
  line-height: 1.6;
}

/* ==================== LAYOUT ==================== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

.main-wrapper {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 280px;
  background: var(--dark);
  color: var(--white);
  padding: 30px 20px;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  z-index: 100;
}

.content {
  flex: 1;
  margin-left: 280px;
  padding: 30px;
  background: var(--gray-light);
  min-height: 100vh;
}

/* ==================== SIDEBAR ==================== */
.logo {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 40px;
  color: #ffffff;
}

.nav-menu {
  list-style: none;
}

.nav-item {
  margin-bottom: 10px;
}

.nav-link {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  color: var(--gray-light);
  text-decoration: none;
  border-radius: 8px;
  transition: var(--transition);
  font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
  background: var(--primary);
  color: var(--white);
  transform: translateX(5px);
}

.nav-link i {
  margin-right: 12px;
  font-size: 18px;
}

.user-info {
  margin-top: auto;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.logout-btn {
  width: 100%;
  padding: 12px;
  background: var(--danger);
  color: var(--white);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.logout-btn:hover {
  background: #dc2626;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

/* ==================== CARDS ==================== */
.card {
  background: var(--white);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  margin-bottom: 24px;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--gray-light);
}

.card-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
}

.card-body {
  color: var(--gray);
}

/* ==================== STATS CARDS ==================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-bottom: 30px;
}

.stat-card {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }

  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

.stat-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
}

.stat-card.success {
  background: linear-gradient(135deg, var(--success), #059669);
}

.stat-card.warning {
  background: linear-gradient(135deg, var(--warning), #d97706);
}

.stat-card.danger {
  background: linear-gradient(135deg, var(--danger), #dc2626);
}

.stat-card.secondary {
  background: linear-gradient(135deg, var(--secondary), #db2777);
}

.stat-icon {
  font-size: 36px;
  margin-bottom: 12px;
  opacity: 0.9;
}

.stat-value {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  font-size: 14px;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-success {
  background: var(--success);
  color: var(--white);
}

.btn-success:hover {
  background: #059669;
  transform: translateY(-2px);
}

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

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background: #4b5563;
}

.btn-group {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

/* ==================== FORMS ==================== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--dark);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-light);
  border-radius: 8px;
  font-size: 14px;
  transition: var(--transition);
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

select.form-control {
  cursor: pointer;
}

/* ==================== TABLES ==================== */
.table-responsive {
  overflow-x: auto;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
}

thead {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
}

th {
  padding: 16px;
  text-align: left;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 1px;
}

td {
  padding: 16px;
  border-bottom: 1px solid var(--gray-light);
}

tbody tr {
  transition: var(--transition);
}

tbody tr:hover {
  background: var(--gray-light);
}

/* ==================== BADGES ==================== */
.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: #d1fae5;
  color: #065f46;
}

.badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.badge-primary {
  background: #e0e7ff;
  color: #3730a3;
}

.badge-secondary {
  background: #fce7f3;
  color: #831843;
}

/* ==================== LOGIN PAGE ==================== */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  background: var(--white);
  border-radius: 24px;
  padding: 48px;
  box-shadow: var(--shadow-lg);
  max-width: 450px;
  width: 100%;
  animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.login-subtitle {
  color: var(--gray);
  font-size: 14px;
}

/* ==================== ALERTS ==================== */
.alert {
  padding: 16px 20px;
  border-radius: 12px;
  margin-bottom: 20px;
  font-weight: 500;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.alert-success {
  background: #d1fae5;
  color: #065f46;
  border-left: 4px solid var(--success);
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border-left: 4px solid var(--danger);
}

.alert-warning {
  background: #fef3c7;
  color: #92400e;
  border-left: 4px solid var(--warning);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }

  .content {
    margin-left: 0;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .table-responsive {
    font-size: 14px;
  }

  th,
  td {
    padding: 12px 8px;
  }
}

/* ==================== UTILITIES ==================== */
.text-center {
  text-align: center;
}

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

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

.flex {
  display: flex;
}

.justify-between {
  justify-content: space-between;
}

.items-center {
  align-items: center;
}

.gap-10 {
  gap: 10px;
}

.hidden {
  display: none;
}

/* ==================== FOOTER ==================== */
.main-footer {
  background: #001f3f;
  color: #ffffff;
  padding: 20px;
  text-align: center;
  font-size: 13px;
  line-height: 1.5;
  margin-top: 30px;
  width: 100%;
  border-top: 3px solid var(--primary);
  border-radius: 12px;
}

.main-footer p {
  max-width: 800px;
  margin: 0 auto;
  opacity: 0.9;
}

@media (max-width: 768px) {
  .main-footer {
    font-size: 11px;
    padding: 15px;
  }
}

/* ==================== SUBMENU AMA DE LLAVES ==================== */
.sub-menu {
  list-style: none;
  margin: 8px 0 0 8px;
  padding: 0;
}
.sub-menu .nav-item {
  margin-bottom: 8px;
}
.sub-link {
  display: block;
  padding: 10px 14px;
  background: var(--white);
  color: var(--dark);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}
.sub-link:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateX(4px);
}

/* Botones estilo Ama de Llaves */
.ama-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--dark);
  color: var(--white);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
}
.ama-btn i { color: var(--white); }
.ama-btn:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateX(5px);
}
.ama-btn[disabled] { opacity: 0.6; cursor: default; transform: none; }

.ama-btn-sm {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--dark);
  color: var(--white);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 13px;
}
.ama-btn-sm i { color: var(--white); }
.ama-btn-sm:hover { background: var(--primary); color: var(--white); transform: translateX(4px); }