/* ============================================================
   Django LMS — Modern / bold / professional theme
   Loaded AFTER style.min.css (non-destructive override layer).
   Complete visual overhaul: deep indigo sidebar, clean light
   content, rich brand color, refined cards / buttons / tables,
   responsive polish. Remove this file to revert.
   ============================================================ */

:root {
  /* Brand — rich, saturated indigo */
  --brand: #4f46e5;
  --brand-rgb: 79, 70, 229;
  --brand-600: #4338ca;
  --brand-700: #3730a3;
  --brand-soft: #eef2ff;
  --accent: #f59e0b;

  /* Sidebar (deep indigo) */
  --side-top: #312e81;
  --side-bottom: #1e1b4b;
  --side-text: #c7d2fe;
  --side-text-strong: #ffffff;

  /* Surfaces & text */
  --surface: #ffffff;
  --app-bg: #f1f5f9;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;

  /* Radius & shadow scale */
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow: 0 6px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.14);

  /* Map Bootstrap 5.3 tokens */
  --bs-primary: var(--brand);
  --bs-primary-rgb: var(--brand-rgb);
  --bs-link-color: var(--brand);
  --bs-link-color-rgb: var(--brand-rgb);
  --bs-link-hover-color: var(--brand-600);
  --bs-border-radius: var(--radius-sm);
  --bs-border-radius-lg: var(--radius);
  --bs-body-color: var(--text);
  --bs-body-bg: var(--app-bg);
  --bs-border-color: var(--border);
  --bs-emphasis-color: var(--text);
}

/* ---------- Base ---------- */
body {
  background-color: var(--app-bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-600); }

/* ============================================================
   Sidebar — deep indigo, modern dashboard style
   ============================================================ */
#side-nav {
  background: linear-gradient(180deg, var(--side-top) 0%, var(--side-bottom) 100%) !important;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 40px rgba(15, 23, 42, 0.18) !important;
}

/* Logo / role header */
#side-nav .top-side {
  background: rgba(0, 0, 0, 0.18) !important;
  box-shadow: none !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 0.75rem;
  padding: 1.25rem 1.5rem !important;
}
#side-nav .top-side .text-orange,
#side-nav .top-side mark {
  background: rgba(245, 158, 11, 0.18) !important;
  color: #fcd34d !important;
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Nav items */
#side-nav ul { padding: 0.5rem 0.6rem; }
#side-nav ul li { margin: 2px 0; }
#side-nav ul li a {
  color: var(--side-text);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  font-weight: 500;
  border-left: 3px solid transparent;
}
#side-nav ul li a i {
  width: 20px;
  text-align: center;
  color: #a5b4fc;
  transition: color 0.2s ease;
}
#side-nav ul li a:hover {
  color: var(--side-text-strong);
  background: rgba(255, 255, 255, 0.08);
}
#side-nav ul li a:hover i { color: #e0e7ff; }
#side-nav ul li.active a {
  background: rgba(255, 255, 255, 0.14) !important;
  color: #fff !important;
  border-left: 3px solid #a5b4fc;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}
#side-nav ul li.active a i { color: #fff; }

/* Sidebar footer */
#side-nav footer { color: rgba(255, 255, 255, 0.65); }
#side-nav footer a { color: #c7d2fe; }
#side-nav .card-footer { background: transparent !important; border: none; }
#side-nav select {
  background: rgba(255, 255, 255, 0.08);
  color: #e0e7ff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 0.35rem 0.5rem;
}
#side-nav select option { color: #0f172a; }

/* ============================================================
   Top navbar
   ============================================================ */
#top-navbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 90;
}
#top-navbar .form-header .form-control {
  background: var(--app-bg);
  border-color: var(--border);
}
#top-navbar .avatar { border-color: var(--border) !important; }

/* ============================================================
   Content area
   ============================================================ */
#main-content {
  padding-top: 1.75rem;
  padding-bottom: 3rem;
}

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: var(--shadow); }
.card .card-body { padding: 1.4rem; }
.card .card-header {
  background: transparent;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  padding: 1rem 1.4rem;
}
.card .card-footer { background: transparent; border-top: 1px solid var(--border); }

/* Stat / dashboard tiles get a bit more presence */
.card.text-white,
.card .bg-primary { border: none; }

/* ---------- Buttons ---------- */
.btn {
  border-radius: var(--radius-sm);
  font-weight: 600;
  padding: 0.5rem 1rem;
  transition: all 0.18s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary,
.btn-dark {
  --bs-btn-bg: var(--brand);
  --bs-btn-border-color: var(--brand);
  --bs-btn-hover-bg: var(--brand-600);
  --bs-btn-hover-border-color: var(--brand-600);
  --bs-btn-active-bg: var(--brand-700);
  --bs-btn-active-border-color: var(--brand-700);
  box-shadow: 0 2px 8px rgba(var(--brand-rgb), 0.28);
}
.btn-outline-primary {
  --bs-btn-color: var(--brand);
  --bs-btn-border-color: var(--brand);
  --bs-btn-hover-bg: var(--brand);
  --bs-btn-hover-border-color: var(--brand);
  --bs-btn-active-bg: var(--brand-600);
}
.btn-secondary {
  --bs-btn-bg: #475569;
  --bs-btn-border-color: #475569;
  --bs-btn-hover-bg: #334155;
  --bs-btn-hover-border-color: #334155;
}

/* ---------- Forms & focus ---------- */
.form-control, .form-select {
  border-radius: var(--radius-sm);
  border-color: var(--border);
  padding: 0.55rem 0.85rem;
}
.form-control:focus, .form-select:focus,
.btn:focus-visible, a:focus-visible {
  border-color: var(--brand);
  box-shadow: 0 0 0 0.2rem rgba(var(--brand-rgb), 0.25);
  outline: none;
}

/* ---------- Tables ---------- */
.table { --bs-table-hover-bg: var(--brand-soft); }
.table > :not(caption) > * > * { padding: 0.8rem 0.95rem; vertical-align: middle; }
.table thead th {
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.78rem;
  background: #f8fafc;
  border-bottom: 2px solid var(--border);
}

/* ---------- Badges / accents ---------- */
.text-orange { color: var(--accent) !important; }
.text-primary { color: var(--brand) !important; }
.bg-primary { background-color: var(--brand) !important; }
.badge.bg-primary { background-color: var(--brand) !important; }

/* ============================================================
   Sidebar text logo (replaces the image logo)
   ============================================================ */
.brand-logo {
  display: inline-block;
  font-weight: 800;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
  line-height: 1;
  color: #fff;
}
.brand-logo:hover { color: #fff; }
.brand-logo .brand-mark { color: #ffffff; }
.brand-logo .brand-accent { color: #a5b4fc; }

/* ============================================================
   Forms — clean, consistent layout
   ============================================================ */
/* Section header inside form cards (was an out-of-theme blue gradient) */
.form-title {
  background: var(--brand-soft) !important;
  color: var(--brand-700) !important;
  font-weight: 600;
  font-size: 0.95rem;
  text-align: left;
  justify-content: flex-start;
  padding: 0.8rem 1.25rem;
  margin: 0;
  border-bottom: 1px solid var(--border);
  border-top-left-radius: var(--radius);
  border-top-right-radius: var(--radius);
}
.form-title i { color: var(--brand); }

/* Consistent spacing between crispy fields */
.card-body .mb-3,
form .mb-3 { margin-bottom: 1rem; }

/* Labels & required marker */
form label.form-label { font-weight: 500; margin-bottom: 0.35rem; }
.asteriskField { color: #ef4444; margin-left: 2px; }
.form-text { color: var(--muted); font-size: 0.8rem; }

/* Checkbox lists (course allocation etc.) */
.form-check-input:checked {
  background-color: var(--brand);
  border-color: var(--brand);
}

/* Keep native selects tidy */
.form-select { background-position: right 0.75rem center; }

/* ============================================================
   Responsive polish
   ============================================================ */
@media (max-width: 991.98px) {
  #main-content { padding-left: 1rem; padding-right: 1rem; }
}
@media (max-width: 767.98px) {
  .nav-wrapper { flex-wrap: wrap; gap: 0.5rem; }
  .form-header { order: 3; flex: 1 1 100%; margin-top: 0.5rem; }
  .card .card-body { padding: 1.05rem; }
  h1, .h1 { font-size: 1.6rem; }
  h2, .h2 { font-size: 1.35rem; }
  h3, .h3 { font-size: 1.15rem; }
}
@media (max-width: 575.98px) {
  .table-responsive-auto {
    display: block; width: 100%; overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}
/* ============================================================
   Dashboard KPIs, Charts & Floating Action Bar Polish
   ============================================================ */
.card-count {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-sm) !important;
  padding: 1.25rem 1.5rem !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}
.card-count:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow) !important;
}
.card-count h2 {
  font-weight: 800 !important;
  font-size: 1.85rem !important;
  color: var(--text) !important;
  margin: 0 !important;
  letter-spacing: -0.02em !important;
}
.card-count .text-right {
  color: var(--muted) !important;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
}

.chart-wrap {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-sm) !important;
  padding: 1.25rem !important;
  transition: box-shadow 0.2s ease !important;
}
.chart-wrap:hover {
  box-shadow: var(--shadow) !important;
}

.manage-wrap {
  background: rgba(255, 255, 255, 0.94) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  border-top: 1px solid var(--border) !important;
  box-shadow: 0 -4px 20px rgba(15, 23, 42, 0.08) !important;
  padding: 0.75rem 1.5rem !important;
}

/* Breadcrumb refinement */
.breadcrumb {
  background: transparent !important;
  padding: 0 !important;
  margin-bottom: 1.25rem !important;
  font-size: 0.85rem !important;
  font-weight: 500 !important;
}
.breadcrumb-item a {
  color: var(--muted) !important;
}
.breadcrumb-item a:hover {
  color: var(--brand) !important;
}
.breadcrumb-item.active {
  color: var(--text) !important;
  font-weight: 600 !important;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}