/* Root CSS Variables for Light Mode */
:root {
  --text-color: #333;
  --bg-color: #fff;
  --navbar-bg: #fff;
  --navbar-text: #666;
  --link-color: #258cfb;
  --text-primary: #333;
  --text-secondary: #666;
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f0f2f5;
  --border-color: #e9ecef;
  --primary-color: #667eea;
  --primary-color-hover: #5568d3;
  --primary-color-alpha: rgba(102, 126, 234, 0.1);
  --shadow-sm: rgba(0, 0, 0, 0.08);
}

/* Dark Mode CSS Variables */
[data-theme="dark"] {
  --text-color: #e4e4e7;
  --bg-color: #1a1a2e;
  --navbar-bg: #16213e;
  --navbar-text: #aaa;
  --link-color: #667eea;
  --text-primary: #e4e4e7;
  --text-secondary: #9ca3af;
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --border-color: #475569;
  --primary-color: #667eea;
  --primary-color-hover: #764ba2;
  --primary-color-alpha: rgba(102, 126, 234, 0.15);
  --shadow-sm: rgba(0, 0, 0, 0.3);
}

html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navbar Dark Mode Support */
.navbar {
  background-color: var(--navbar-bg) !important;
  border-bottom-color: var(--border-color, #e9ecef);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}


[data-theme="dark"] .navbar {
  background-color: #16213e !important;
  border-bottom-color: #2d2d3d;
}

.navbar-light .nav-link,
.navbar-light .navbar-brand {
  color: var(--navbar-text) !important;
}

[data-theme="dark"] .navbar-light .nav-link,
[data-theme="dark"] .navbar-light .navbar-brand {
  color: #e4e4e7 !important;
}

[data-theme="dark"] .navbar-light .nav-link:hover {
  color: #fff !important;
}

/* Footer Dark Mode Support */
.footer {
  background-color: var(--bg-secondary, #f8f9fa);
  border-top-color: var(--border-color, #e9ecef);
  color: var(--text-tertiary, #666);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

[data-theme="dark"] .footer {
  background-color: #16213e;
  border-top-color: #2d2d3d;
  color: #aaa;
}

/* Form Elements Dark Mode Support */
.form-control,
.form-select {
  background-color: var(--card-bg, #fff);
  color: var(--text-primary, #333);
  border-color: var(--border-color, #ddd);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
  background-color: #2a2a3a;
  color: #e4e4e7;
  border-color: #2d2d3d;
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
  background-color: #2a2a3a;
  color: #e4e4e7;
  border-color: #667eea;
  box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
}

/* Card Dark Mode Support */
.card {
  background-color: var(--card-bg, #fff);
  border-color: var(--border-color, #ddd);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

[data-theme="dark"] .card {
  background-color: #16213e;
  border-color: #2d2d3d;
}

[data-theme="dark"] .card-header {
  background-color: #2a2a3a;
  border-bottom-color: #2d2d3d;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}