:root {
  --bg-color: #0f172a;
  /* Slate 900 */
  --card-bg: rgba(30, 41, 59, 0.7);
  /* Slate 800 with opacity */
  --primary: #3b82f6;
  /* Blue 500 */
  --primary-hover: #2563eb;
  /* Blue 600 */
  --text-main: #f8fafc;
  /* Slate 50 */
  --text-muted: #94a3b8;
  /* Slate 400 */
  --border-color: rgba(255, 255, 255, 0.1);
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Glassmorphism Logic */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-grow: 1;
  background: radial-gradient(circle at top right, #1e293b, #0f172a);
  height: 100vh;
}

.login-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  text-align: center;
}

.login-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.login-subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: white;
  font-size: 1rem;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.btn-primary {
  width: 100%;
  padding: 0.875rem;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

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

.form-footer {
  margin-top: 1.5rem;
}

.form-footer a {
  color: var(--text-muted);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.2s;
}

.form-footer a:hover {
  color: var(--primary);
}

/* General Layout */
header {
  background: rgba(30, 41, 59, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-main);
  text-decoration: none;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--text-main);
}

main {
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

footer {
  text-align: center;
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: auto;
}

/* Language Switcher Button */
.btn-lang {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-lang:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--text-main);
}

/* Admin Nav Styling */
nav a.active {
  color: var(--primary);
  font-weight: 700;
  border-bottom: 2px solid var(--primary);
  padding-bottom: 4px;
}

/* Table Styling */
.table-container {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  margin-top: 2rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  color: var(--text-main);
}

th {
  background: rgba(15, 23, 42, 0.8);
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

th a {
  color: var(--text-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

th a:hover {
  color: var(--text-main);
}

td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Action Buttons */
.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: 6px;
  text-decoration: none;
  display: inline-block;
  margin-right: 0.5rem;
  border: none;
  cursor: pointer;
}

.btn-edit {
  background-color: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

.btn-edit:hover {
  background-color: rgba(59, 130, 246, 0.3);
}

.btn-delete {
  background-color: rgba(239, 68, 68, 0.2);
  color: #f87171;
}

.btn-delete:hover {
  background-color: rgba(239, 68, 68, 0.3);
}

.btn-action-container {
  display: flex;
  align-items: center;
}

.header-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.btn-add {
  background-color: var(--primary);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.2s;
}

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