:root {
    /* Logo-inspired Brand Colors */
    --color-brand-teal: #006666;        /* Primary teal from logo */
    --color-brand-teal-light: #B3E0E0;  /* Light teal from logo */
    --color-brand-teal-dark: #004d4d;   /* Darker teal for hover states */
    --color-brand-coral: #EA6B66;       /* Coral accent from logo */
    --color-brand-coral-light: #F5B3B0; /* Light coral for backgrounds */
    --color-brand-coral-dark: #D9544F;  /* Darker coral for hover */
    
    /* Base Colors */
    --color-bg: #f8fafc;
    --color-surface: #fff;
    --color-card: #fff;
    --color-border: #e5e7eb;
    --color-shadow: 0 4px 24px 0 rgba(0, 102, 102, 0.08);
    --color-shadow-hover: 0 8px 32px 0 rgba(0, 102, 102, 0.12);
    
    /* Primary Colors (Teal-based) */
    --color-primary: #006666;
    --color-primary-hover: #004d4d;
    --color-primary-light: #B3E0E0;
    --color-primary-bg: rgba(0, 102, 102, 0.05);
    
    /* Accent Colors (Coral-based) */
    --color-accent: #EA6B66;
    --color-accent-hover: #D9544F;
    --color-accent-light: #F5B3B0;
    --color-accent-bg: rgba(234, 107, 102, 0.1);
    
    /* Status Colors */
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    --color-info: #006666;
    
    /* Text Colors */
    --color-text: #1a1a1a;
    --color-text-secondary: #4b5563;
    --color-text-muted: #6b7280;
    --color-label: #374151;
    
    /* UI Elements */
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --transition: 0.3s cubic-bezier(.4,0,.2,1);
    --transition-fast: 0.15s ease;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
  transition: background var(--transition), color var(--transition);
}

.card, .profile-card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--color-shadow);
  border: 1px solid var(--color-border);
  padding: 1.5em;
  margin-bottom: 1.5em;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before, .profile-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition);
}
.card:hover::before, .profile-card:hover::before {
  opacity: 1;
}
.card:hover, .profile-card:hover {
  box-shadow: var(--color-shadow-hover);
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
}

.table {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--color-shadow);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.table th {
  background: var(--color-bg);
  color: var(--color-text);
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}
.table td {
  background: var(--color-card);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

input[type="text"], input[type="email"], input[type="password"], textarea, select {
  background: #f1f5f9;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.7em 1em;
  transition: border-color var(--transition), box-shadow var(--transition);
  color: var(--color-text);
  font-size: 1rem;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
  outline: none;
  background: #fff;
}

label {
  color: var(--color-text);
  font-weight: 500;
  margin-bottom: 0.3em;
  font-size: 1rem;
}

.btn {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  border: none;
  box-shadow: var(--color-shadow);
  padding: 0.7em 1.7em;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}
.btn:hover::before {
  left: 100%;
}
.btn:hover, .btn:focus {
  background: var(--color-primary-hover);
  color: #fff;
  box-shadow: var(--color-shadow-hover);
  transform: translateY(-2px);
}
.btn:active {
  transform: translateY(0);
}
.btn-primary {
  background: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
}
.btn-accent {
  background: var(--color-accent);
  box-shadow: 0 4px 24px 0 rgba(234, 107, 102, 0.2);
}
.btn-accent:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 8px 32px 0 rgba(234, 107, 102, 0.3);
}

.badge, .status-badge {
  display: inline-block;
  padding: 0.35em 1em;
  border-radius: 999px;
  font-size: 0.95em;
  font-weight: 600;
  color: #fff;
  background: var(--color-muted);
}
.badge-success, .status-badge.success { background: var(--color-success); }
.badge-danger, .status-badge.danger { background: var(--color-danger); }
.badge-warning, .status-badge.warning { background: var(--color-warning); color: #22223b; }
.badge-info, .status-badge.info { background: var(--color-primary); color: #fff; }

.navbar {
  background: var(--color-card);
  color: var(--color-text);
  border-radius: var(--radius);
  box-shadow: var(--color-shadow);
  border: 1px solid var(--color-border);
  transition: background var(--transition), color var(--transition);
}
.navbar .nav-link.active {
  border-bottom: 3px solid var(--color-primary);
  color: var(--color-primary) !important;
  background: var(--color-primary-bg);
  font-weight: 600;
}

input[type="checkbox"] {
  accent-color: var(--color-primary);
  border-radius: 6px;
  width: 1.2em;
  height: 1.2em;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  -webkit-appearance: none;
  appearance: none;
  background-color: #fff;
  border: 2px solid #d1d5db;
  flex-shrink: 0;
}
input[type="checkbox"]:hover {
  accent-color: var(--color-primary-hover);
  transform: scale(1.1);
  border-color: var(--color-primary);
}
input[type="checkbox"]:checked {
  accent-color: var(--color-primary);
  background-color: var(--color-primary) !important;
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px var(--color-primary-bg);
  background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-7 7a1 1 0 01-1.414 0l-3.5-3.5a1 1 0 011.414-1.414L5 10.586l6.793-6.793a1 1 0 011.414 0z'/%3e%3c/svg%3e") !important;
  background-size: 100% 100% !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
  will-change: background-color, background-image;
  transform: translateZ(0); /* Force hardware acceleration for immediate rendering */
}
input[type="checkbox"]:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

::-webkit-scrollbar {
  width: 10px;
  background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-primary-light), var(--color-primary));
  border-radius: 8px;
  border: 2px solid var(--color-bg);
  transition: background var(--transition);
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-hover));
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
  border-radius: 8px;
}

/* Profile counter and button styles */
.profile-counter {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #fff 100%);
  color: var(--color-primary);
  border-radius: 999px;
  font-weight: 700;
  font-size: 1.2em;
  padding: 0.2em 1em;
  box-shadow: var(--color-shadow);
  border: 2px solid var(--color-primary-light);
  transition: all var(--transition);
}
.profile-counter:hover {
  border-color: var(--color-primary);
  box-shadow: var(--color-shadow-hover);
  transform: scale(1.05);
}

.profile-card .btn {
  margin-top: 1em;
  box-shadow: 0 2px 12px 0 rgba(0, 102, 102, 0.15);
}
.profile-card .btn:hover {
  box-shadow: 0 4px 16px 0 rgba(0, 102, 102, 0.25);
}

/* Table search and filter */
.table-search {
  background: #f1f5f9;
  border-radius: var(--radius);
  border: 1.5px solid var(--color-border);
  padding: 0.7em 1em;
  font-size: 1rem;
  margin-bottom: 1em;
  transition: all var(--transition);
}
.table-search:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
  background: #fff;
}

.action-btn-group {
  display: flex;
  gap: 0.5em;
}

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.4em;
  height: 2.4em;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  box-shadow: var(--color-shadow);
  font-size: 1.1em;
  transition: all var(--transition);
  padding: 0;
  outline: none;
  position: relative;
  overflow: hidden;
}

.action-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s;
}

.action-btn:hover::before,
.action-btn:focus::before {
  width: 100%;
  height: 100%;
}

.action-btn:hover, .action-btn:focus {
  background: var(--color-primary-hover);
  transform: scale(1.08);
  box-shadow: 0 6px 24px 0 rgba(0, 102, 102, 0.25);
}

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

.action-btn.delete:hover, .action-btn.delete:focus {
  background: #dc2626;
  box-shadow: 0 6px 24px 0 rgba(239, 68, 68, 0.3);
}

.action-btn.accent {
  background: var(--color-accent);
}

.action-btn.accent:hover, .action-btn.accent:focus {
  background: var(--color-accent-hover);
  box-shadow: 0 6px 24px 0 rgba(234, 107, 102, 0.3);
}

/* --- Professional Navbar Styles --- */
.main-navbar {
  background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
  border-radius: 16px;
  margin: 12px 0;
  box-shadow: 0 4px 24px 0 rgba(0, 102, 102, 0.08);
  border: 1px solid rgba(0, 102, 102, 0.05);
  min-height: 64px;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  transition: all var(--transition);
}
.main-navbar:hover {
  box-shadow: 0 6px 32px 0 rgba(0, 102, 102, 0.12);
}

.navbar-brand {
  font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: transform var(--transition-fast);
}
.navbar-brand:hover {
  transform: scale(1.02);
}
.navbar-brand img {
  transition: transform var(--transition);
  filter: drop-shadow(0 2px 4px rgba(0, 102, 102, 0.1));
}
.navbar-brand:hover img {
  transform: scale(1.05) rotate(2deg);
}

.nav-link {
  color: var(--color-text);
  font-weight: 500;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  transition: all var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width var(--transition);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 60%;
}
.nav-link.active, .nav-link:hover, .nav-link:focus {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.btn-lang, .btn-settings, .btn-logout {
  border: none;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(0, 102, 102, 0.15);
  padding: 0.5em 1.5em;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5em;
}
.btn-lang:hover, .btn-settings:hover, .btn-logout:hover {
  background: var(--color-primary-hover);
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 102, 102, 0.25);
  transform: translateY(-1px);
}
.btn-logout {
  background: var(--color-accent);
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(234, 107, 102, 0.2);
}
.btn-logout:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 12px rgba(234, 107, 102, 0.3);
}
.bg-purple {
  background: #006666 !important;
  color: #fff !important;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.5em 1.2em;
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(0, 102, 102, 0.2);
  transition: all var(--transition);
}
.bg-purple:hover {
  background: #004d4d !important;
  box-shadow: 0 4px 12px rgba(0, 102, 102, 0.3);
  transform: translateY(-1px);
}
.user-name {
  font-weight: 600;
  color: var(--color-text);
  padding: 0 0.5em;
}
@media (max-width: 992px) {
  .main-navbar {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
  .navbar-brand {
    font-size: 1.1rem;
  }
  .btn-lang, .btn-settings, .btn-logout, .bg-purple {
    font-size: 0.95rem;
    padding: 0.4em 1em;
  }
}
/* --- End Navbar Styles --- */

/* Responsive adjustments */
@media (max-width: 768px) {
  .card, .profile-card, .table {
    padding: 1em;
    font-size: 0.98em;
  }
  .btn {
    padding: 0.6em 1.2em;
    font-size: 0.98em;
  }
}

/* Theme toggle button */
.theme-toggle {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  position: fixed;
  top: 100px;
  right: 20px;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.theme-toggle:hover {
  background-color: var(--color-primary);
  color: #fff;
  transform: scale(1.1);
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.theme-toggle:active {
  transform: scale(0.95);
}