/* ===== CSS VARIABLES ===== */
:root {
  /* Brand Colors */
  --primary-dark: #0a3833;
  --primary: #0c837a;
  --primary-light: #6fc9bd;
  --primary-very-light: #e2f4f1;

  /* Semantic Colors */
  --success: #28a745;
  --danger: #dc3545;
  --warning: #ffc107;
  --info: #17a2b8;
  --light: #f8f9fa;
  --dark: #343a40;

  /* Neutral Colors */
  --white: #ffffff;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;

  /* Shadows */
  --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);

  /* Border Radius */
  --border-radius-sm: 0.25rem;
  --border-radius: 0.375rem;
  --border-radius-lg: 0.5rem;
  --border-radius-xl: 1rem;

  /* Transitions */
  --transition: all 0.3s ease;
}

/* ===== GLOBAL STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--gray-100);
  color: var(--gray-900);
  line-height: 1.6;
}

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

a:hover {
  color: var(--primary-dark);
}

/* ===== UTILITY CLASSES ===== */
.text-primary {
  color: var(--primary) !important;
}
.text-primary-dark {
  color: var(--primary-dark) !important;
}
.text-primary-light {
  color: var(--primary-light) !important;
}

.bg-primary {
  background-color: var(--primary) !important;
}
.bg-primary-dark {
  background-color: var(--primary-dark) !important;
}
.bg-primary-light {
  background-color: var(--primary-light) !important;
}
.bg-primary-very-light {
  background-color: var(--primary-very-light) !important;
}

.border-primary {
  border-color: var(--primary) !important;
}

/* ===== CARD STYLES ===== */
.card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  border: none;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

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

.card-header {
  background-color: var(--primary-very-light);
  border-bottom: 2px solid var(--primary-light);
  padding: 1rem 1.5rem;
  font-weight: 600;
  color: var(--primary-dark);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  background-color: var(--gray-100);
  border-top: 1px solid var(--gray-300);
  padding: 1rem 1.5rem;
}

/* ===== FORM STYLES ===== */
.form-control,
.form-select {
  border: 2px solid var(--gray-300);
  border-radius: var(--border-radius);
  padding: 0.625rem 1rem;
  transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--primary) 25%, transparent);
  outline: none;
}

.form-label {
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

.form-control.is-invalid {
  border-color: var(--danger);
}

.form-control.is-valid {
  border-color: var(--success);
}

.invalid-feedback {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* ===== TABLE STYLES ===== */
.table-custom {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.table-custom thead {
  background-color: var(--primary-dark);
  color: var(--white);
}

.table-custom thead th {
  padding: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
  border: none;
}

.table-custom tbody tr {
  transition: var(--transition);
  border-bottom: 1px solid var(--gray-200);
}

.table-custom tbody tr:hover {
  background-color: var(--primary-very-light);
}

.table-custom tbody td {
  padding: 1rem;
  vertical-align: middle;
}

/* ===== SIDEBAR STYLES ===== */
.sidebar {
  background: linear-gradient(
    180deg,
    var(--primary-dark) 0%,
    var(--primary) 100%
  );
  min-height: 100vh;
  color: var(--white);
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.sidebar .logo {
  padding: 1.5rem;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar .logo h3 {
  color: var(--white);
  font-weight: 700;
  margin: 0;
}

.sidebar-nav {
  padding: 1rem 0;
  list-style: none;
}

.sidebar-nav li {
  margin: 0.25rem 0;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  padding: 0.875rem 1.5rem;
  color: rgba(255, 255, 255, 0.85);
  transition: var(--transition);
  position: relative;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.sidebar-nav a.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--primary-very-light);
}

.sidebar-nav i {
  width: 24px;
  margin-right: 0.75rem;
  font-size: 1.125rem;
}

/* ===== MAIN CONTENT ===== */
.main-content {
  margin-left: 260px;
  padding: 2rem;
  height: 100vh;
  overflow-y: auto;
  background-color: var(--gray-100);
}

/* ===== NAVBAR ===== */
.navbar-custom {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  padding: 1rem 2rem;
  margin-bottom: 2rem;
  border-radius: var(--border-radius-lg);
}

.navbar-custom .d-flex > div:last-child {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* ===== BADGE STYLES ===== */
.badge-primary-custom {
  background-color: var(--primary);
  color: var(--white);
  padding: 0.375rem 0.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
}

.badge-success-custom {
  background-color: var(--success);
  color: var(--white);
  padding: 0.375rem 0.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
}

.badge-danger-custom {
  background-color: var(--danger);
  color: var(--white);
  padding: 0.375rem 0.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
}

/* ===== STAT CARD ===== */
.stat-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(
    180deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.stat-card .stat-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}

.stat-card .stat-label {
  color: var(--gray-600);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

/* ===== MODAL STYLES ===== */
.modal-content {
  border-radius: var(--border-radius-lg);
  border: none;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  background-color: var(--primary-very-light);
  border-bottom: 2px solid var(--primary-light);
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.modal-title {
  color: var(--primary-dark);
  font-weight: 700;
}

/* ===== ALERT STYLES ===== */
.alert-custom {
  border-radius: var(--border-radius-lg);
  padding: 1rem 1.5rem;
  border: none;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

.alert-custom.alert-success {
  background-color: #d4edda;
  color: #155724;
  border-left: 4px solid var(--success);
}

.alert-custom.alert-danger {
  background-color: #f8d7da;
  color: #721c24;
  border-left: 4px solid var(--danger);
}

.alert-custom.alert-warning {
  background-color: #fff3cd;
  color: #856404;
  border-left: 4px solid var(--warning);
}

.alert-custom.alert-info {
  background-color: #d1ecf1;
  color: #0c5460;
  border-left: 4px solid var(--info);
}

/* ===== LOADER/SPINNER ===== */
.loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--primary-very-light);
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ===== PAGINATION ===== */
.pagination .page-link {
  color: var(--primary);
  border: 1px solid var(--gray-300);
  padding: 0.5rem 0.875rem;
  transition: var(--transition);
}

.pagination .page-link:hover {
  background-color: var(--primary-very-light);
  border-color: var(--primary-light);
  color: var(--primary-dark);
}

.pagination .page-item.active .page-link {
  background-color: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

.pagination .page-item.disabled .page-link {
  color: var(--gray-400);
  background-color: var(--white);
  border-color: var(--gray-300);
}

/* ===== SIDEBAR TOGGLE (hidden on desktop) ===== */
.sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary);
  padding: 0.25rem 0.5rem;
  margin-right: 0.75rem;
  flex-shrink: 0;
}

/* ===== NAVBAR RESPONSIVE ===== */
@media (max-width: 768px) {
  .navbar-custom .d-flex {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .navbar-custom h4 {
    font-size: 1rem;
  }

  .navbar-custom .breadcrumb {
    font-size: 0.75rem;
  }

  /* Hide button text on mobile, show only icon */
  .navbar-custom .btn-custom .btn-label {
    display: none;
  }

  .navbar-custom .btn-custom i {
    margin-right: 0;
  }

  .navbar-custom .btn-custom {
    padding: 0.4rem 0.6rem !important;
    min-width: unset;
  }

  /* Also hide btn-label in filter/action sections */
  .card .btn-custom .btn-label {
    display: none;
  }

  .card .btn-custom i {
    margin-right: 0;
  }

  .card .btn-custom {
    padding: 0.4rem 0.6rem !important;
    min-width: unset;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 260px;
    position: fixed;
    top: 0;
    left: -260px;
    height: 100vh;
    transition: left 0.3s ease;
    z-index: 1050;
  }

  .sidebar.open {
    left: 0;
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1040;
  }

  .sidebar-overlay.open {
    display: block;
  }

  .main-content {
    margin-left: 0;
    padding: 1rem;
    height: 100vh;
    overflow-y: auto;
  }

  .sidebar-toggle {
    display: flex !important;
  }

  .stat-card {
    margin-bottom: 1rem;
  }
}

/* ===== ANIMATION CLASSES ===== */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===== SCROLLBAR CUSTOM ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-200);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: var(--border-radius);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* ===== PRINT STYLES ===== */
@media print {
  .main-content {
    height: auto !important;
    overflow-y: visible !important;
    margin-left: 0 !important;
  }
}