/* ==========================================================
   CEFR LEVEL - MODERN FULL STYLE SHEET
   ========================================================== */

:root {
  /* --- LIGHT MODE COLORS --- */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-tertiary: #94a3b8;
  --border-color: #e2e8f0;
  --accent-primary: #3b82f6;
  --accent-secondary: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px 0 rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 40px 0 rgba(0, 0, 0, 0.12);
}

/* --- TRUE DARK MODE (MUKAMMAL QORA) --- */
html[data-theme="dark"],
body[data-theme="dark"] {
  --bg-primary: #000000;
  /* Asosiy fon toza qora */
  --bg-secondary: #111111;
  /* Kartochkalar va Navbar */
  --bg-tertiary: #1a1a1a;
  /* Inputlar va hoverlar */
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  --border-color: #333333;
  /* Qora fonda chiroyli ko'rinadigan chegara */
  --accent-primary: #60a5fa;
  --accent-secondary: #a78bfa;
  --accent-gradient: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
  --shadow-sm: 0 1px 2px 0 rgba(255, 255, 255, 0.03);
  --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.8);
  --shadow-lg: 0 10px 25px 0 rgba(0, 0, 0, 0.9);
  --shadow-xl: 0 20px 40px 0 rgba(0, 0, 0, 1);
}

/* --- CORE RESET --- */
* {
  box-sizing: border-box;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
  background-color: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  margin: 0;
  line-height: 1.6;
}

/* --- NAVBAR --- */
.navbar {
  background-color: var(--bg-secondary) !important;
  border-bottom: 1px solid var(--border-color) !important;
  box-shadow: var(--shadow-sm);
  padding: 0.8rem 0;
  backdrop-filter: blur(10px);
}

.navbar .nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.3s ease;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--accent-primary);
}

.navbar-toggler {
  border-color: var(--border-color);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30, 41, 59, 0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="dark"] .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(248, 250, 252, 0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.4rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- CARDS --- */
.card {
  background-color: var(--bg-secondary) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 1rem;
  color: var(--text-primary) !important;
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.card:hover {
  border-color: var(--accent-primary) !important;
  box-shadow: var(--shadow-lg);
}

/* --- FORMS & INPUTS --- */
.form-label {
  color: var(--text-primary) !important;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.form-control,
.form-select {
  background-color: var(--bg-tertiary) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-primary) !important;
  border-radius: 0.75rem;
  padding: 0.7rem 1rem;
}

.form-control:focus,
.form-select:focus {
  background-color: var(--bg-tertiary) !important;
  border-color: var(--accent-primary) !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15) !important;
}

.form-control[readonly] {
  background-color: var(--bg-secondary) !important;
  opacity: 0.8;
}

/* --- BUTTONS --- */
.btn-primary {
  background: var(--accent-gradient) !important;
  border: none !important;
  color: white !important;
  padding: 0.7rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 600;
}

.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: var(--shadow-md);
}

.btn-outline-primary {
  border: 1px solid var(--accent-primary) !important;
  color: var(--accent-primary) !important;
  border-radius: 0.75rem;
}

.btn-outline-primary:hover {
  background: var(--accent-gradient) !important;
  color: white !important;
}

.btn-icon {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid transparent;
  transition: all 0.3s ease;
}

.btn-icon:hover {
  background-color: var(--bg-primary);
  color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
  border-color: var(--border-color);
}

/* --- AVATAR & DROPDOWN --- */
#avatarPreview {
  border: 3px solid var(--accent-primary);
  padding: 3px;
  background-color: var(--bg-secondary);
}

.dropdown-menu {
  background-color: var(--bg-secondary) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 1rem;
  box-shadow: var(--shadow-xl);
  padding: 0.5rem;
}

.dropdown-item {
  color: var(--text-primary) !important;
  border-radius: 0.5rem;
  padding: 0.7rem 1rem;
}

.dropdown-item:hover {
  background: var(--accent-gradient) !important;
  color: white !important;
}

/* --- BADGES --- */
.badge {
  padding: 0.5rem 0.8rem;
  border-radius: 0.5rem;
  font-weight: 600;
}

.bg-warning {
  background: linear-gradient(135deg, #f59e0b 0%, #f97316 100%) !important;
  color: white !important;
}

.bg-success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
  color: white !important;
}

/* --- FOOTER --- */
footer {
  background-color: var(--bg-secondary) !important;
  border-top: 1px solid var(--border-color) !important;
  padding: 2rem 0;
  margin-top: 3rem;
  color: var(--text-secondary);
}

/* --- UTILITIES --- */
.text-muted {
  color: var(--text-secondary) !important;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--text-primary) !important;
  font-weight: 700;
}

.form-switch .form-check-input {
  width: 3rem !important;
  height: 1.5rem !important;
  cursor: pointer;
  background-color: var(--bg-tertiary);
}

.form-switch .form-check-input:checked {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
}

hr {
  background-color: var(--border-color);
  opacity: 0.5;
}

/* --- MODALS --- */
.modal-content {
  background-color: var(--bg-secondary) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-primary);
  border-radius: 1.5rem;
}

/* --- LIST GROUP --- */
.list-group-item {
  background-color: var(--bg-secondary) !important;
  color: var(--text-primary) !important;
  border-color: var(--border-color) !important;
}

.list-group-item-action:hover {
  background-color: var(--bg-tertiary) !important;
  color: var(--accent-primary) !important;
}

/* --- ACCORDION --- */
.accordion-item {
  background-color: var(--bg-secondary) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-primary) !important;
}

.accordion-button {
  background-color: var(--bg-secondary) !important;
  color: var(--text-primary) !important;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  background-color: var(--bg-tertiary) !important;
  color: var(--accent-primary) !important;
  border-bottom: 1px solid var(--border-color);
}

.accordion-button::after {
  filter: invert(0.5);
  /* Adjust arrow color */
}

[data-theme="dark"] .accordion-button::after {
  filter: invert(1);
  /* Make arrow white in dark mode */
}

/* --- UTILITIES & SUBTLE BACKGROUNDS --- */
.bg-primary.bg-opacity-10 {
  background-color: rgba(59, 130, 246, 0.1) !important;
}

[data-theme="dark"] .bg-primary.bg-opacity-10 {
  background-color: rgba(96, 165, 250, 0.15) !important;
  border: 1px solid rgba(96, 165, 250, 0.2);
}

/* --- SCROLLBAR (OPTIONAL) --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 10px;
}


/* --- DARK MODE UTILITY OVERRIDES --- */
[data-theme="dark"] .bg-light {
  background-color: var(--bg-tertiary) !important;
  color: var(--text-primary) !important;
}

[data-theme="dark"] .table {
  --bs-table-bg: transparent !important;
  --bs-table-color: var(--text-primary) !important;
  --bs-table-striped-bg: var(--bg-tertiary) !important;
  --bs-table-striped-color: var(--text-primary) !important;
  --bs-table-active-bg: var(--bg-tertiary) !important;
  --bs-table-active-color: var(--text-primary) !important;
  --bs-table-hover-bg: var(--bg-tertiary) !important;
  --bs-table-hover-color: var(--text-primary) !important;
  color: var(--text-primary) !important;
  border-color: var(--border-color) !important;
}

[data-theme="dark"] .table> :not(caption)>*>* {
  background-color: transparent !important;
  border-bottom-color: var(--border-color) !important;
  color: var(--text-primary) !important;
  box-shadow: none !important;
}

[data-theme="dark"] .table-hover>tbody>tr:hover>* {
  color: var(--text-primary) !important;
  background-color: var(--bg-tertiary) !important;
}

[data-theme="dark"] .text-muted {
  color: var(--text-tertiary) !important;
}

[data-theme="dark"] .btn-outline-secondary {
  color: var(--text-secondary);
  border-color: var(--border-color);
}

[data-theme="dark"] .btn-outline-secondary:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--text-primary);
}