:root {
  --navy: #003366;
  --navy-dark: #001f36;
  --teal: #008080;
  --teal-light: #00a3a3;
  --bg-color: #f4f7f6;
  --card-bg: rgba(255, 255, 255, 0.7);
  --card-border: rgba(255, 255, 255, 0.3);
  --text-dark: #0a1a2a;
  --text-muted: #666;
  --border-color: #e2e8f0;
  --danger: #dc3545;
  --success: #28a745;
  --warning: #ffc107;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 31, 54, 0.1);
  --transition: all 0.3s ease;
  --border-radius: 12px;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--navy);
}

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

a:hover {
  color: var(--navy);
}

/* Glassmorphism Classes */
.glass-panel {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--navy);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.8);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0, 128, 128, 0.1);
  background-color: #fff;
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 600;
  text-align: center;
  vertical-align: middle;
  user-select: none;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: 8px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  color: #fff;
  background-color: var(--navy);
  box-shadow: 0 4px 6px rgba(0, 51, 102, 0.2);
}

.btn-primary:hover {
  background-color: var(--navy-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 51, 102, 0.3);
}

.btn-secondary {
  color: #fff;
  background-color: var(--teal);
}

.btn-secondary:hover {
  background-color: var(--teal-light);
  transform: translateY(-2px);
}

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

.btn-danger:hover {
  background-color: #c82333;
  transform: translateY(-2px);
}

.btn-block {
  display: block;
  width: 100%;
}

/* Utils */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* Loader */
.loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  visibility: hidden;
  opacity: 0;
  transition: var(--transition);
}

.loader-overlay.active {
  visibility: visible;
  opacity: 1;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 5px solid rgba(0, 128, 128, 0.2);
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Badges */
.badge {
  padding: 0.25em 0.6em;
  font-size: 0.75em;
  font-weight: 700;
  border-radius: 0.25rem;
  text-transform: uppercase;
}

.badge-success { background-color: #d4edda; color: #155724; }
.badge-warning { background-color: #fff3cd; color: #856404; }
.badge-danger { background-color: #f8d7da; color: #721c24; }
.badge-primary { background-color: #cce5ff; color: #004085; }