/* =============================================
   TutorHut – style.css
   A clean, modern, warm-academic palette
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=DM+Sans:wght@300;400;500;600&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  --primary:   #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #EFF6FF;
  --accent:    #F59E0B;
  --accent-light: #FFFBEB;
  --success:   #10B981;
  --danger:    #EF4444;
  --warning:   #F59E0B;
  --dark:      #111827;
  --mid:       #374151;
  --muted:     #6B7280;
  --light:     #F9FAFB;
  --white:     #FFFFFF;
  --border:    #E5E7EB;
  --radius:    12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow:    0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  --font-head: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --transition: .22s ease;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--mid);
  background: var(--white);
  line-height: 1.65;
  font-size: 1rem;
}

h1,h2,h3,h4,h5,h6 {
  font-family: var(--font-head);
  color: var(--dark);
  line-height: 1.2;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; }

/* ---------- Navbar ---------- */
.navbar-brand {
  font-family: var(--font-head);
  font-size: 1.5rem;
  color: var(--primary) !important;
  letter-spacing: -.5px;
}
.navbar-brand span { color: var(--accent); }

.navbar {
  background: var(--white) !important;
  border-bottom: 1px solid var(--border);
  padding: .75rem 0;
  box-shadow: var(--shadow-sm);
}

.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--mid) !important;
  padding: .5rem .9rem !important;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  font-size: .95rem;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary) !important;
  background: var(--primary-light);
}
.navbar-nav .btn { margin-left: .5rem; }

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: .55rem 1.4rem;
  font-size: .92rem;
  transition: all var(--transition);
  letter-spacing: .01em;
}
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,99,235,.30);
}
.btn-outline-primary {
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline-primary:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-1px);
}
.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--dark);
}
.btn-accent:hover {
  background: #D97706;
  border-color: #D97706;
  color: var(--white);
  transform: translateY(-1px);
}
.btn-lg { padding: .75rem 2rem; font-size: 1rem; border-radius: var(--radius); }

/* ---------- Cards ---------- */
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
  background: var(--white);
}
.card:hover { box-shadow: var(--shadow); }
.card-hover:hover { transform: translateY(-4px); }
.card-header {
  background: var(--light);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  color: var(--dark);
  border-radius: var(--radius) var(--radius) 0 0 !important;
  padding: 1rem 1.25rem;
}

/* ---------- Hero Section ---------- */
.hero {
  background: linear-gradient(135deg, #EFF6FF 0%, #FFFBEB 100%);
  padding: 6rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,.07) 0%, transparent 70%);
  top: -100px; right: -100px;
  border-radius: 50%;
  pointer-events: none;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1.25rem;
}
.hero-title span { color: var(--primary); }
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 540px;
  margin-bottom: 2rem;
}
.hero-badges .badge {
  background: var(--primary-light) !important;
  color: var(--primary) !important;
  border: 1px solid rgba(37,99,235,.2);
  font-weight: 500;
  padding: .5rem 1rem;
  font-size: .85rem;
  border-radius: 50px;
  margin: .25rem;
}
.hero-img-wrap {
  background: var(--white);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  padding: 2rem;
  text-align: center;
}
.hero-stats { margin-top: 2rem; }
.hero-stat h3 {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 0;
  font-weight: 700;
}
.hero-stat p { font-size: .85rem; color: var(--muted); margin: 0; }

/* ---------- Section headings ---------- */
.section-label {
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--primary);
  margin-bottom: .5rem;
}
.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  color: var(--dark);
  margin-bottom: .75rem;
}
.section-sub {
  font-size: 1rem;
  color: var(--muted);
  max-width: 540px;
  margin: 0 auto 2.5rem;
}

/* ---------- Subject Cards ---------- */
.subject-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
  background: var(--white);
}
.subject-card:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.subject-icon {
  width: 56px; height: 56px;
  background: var(--primary-light);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.6rem;
  transition: background var(--transition);
}
.subject-card:hover .subject-icon { background: var(--primary); color: white; }
.subject-card h6 {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--dark);
  margin: 0;
  font-size: .95rem;
}

/* ---------- How It Works ---------- */
.how-step {
  text-align: center;
  padding: 2rem 1rem;
}
.step-number {
  width: 52px; height: 52px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 auto 1.25rem;
  font-family: var(--font-head);
}
.step-connector {
  position: absolute;
  top: 26px; left: calc(50% + 40px);
  width: calc(100% - 80px);
  height: 2px;
  background: linear-gradient(to right, var(--primary), var(--border));
  z-index: 0;
}
.how-step h5 { font-size: 1rem; font-weight: 600; color: var(--dark); margin-bottom: .5rem; }
.how-step p { font-size: .875rem; color: var(--muted); }

/* ---------- Tutor Cards ---------- */
.tutor-card .card-img-top {
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius) var(--radius) 0 0;
}
.avatar-placeholder {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
  font-family: var(--font-head);
  flex-shrink: 0;
}
.avatar-sm {
  width: 48px; height: 48px;
  font-size: 1.1rem;
}
.avatar-lg {
  width: 100px; height: 100px;
  font-size: 2.2rem;
}
.rating-stars { color: var(--accent); font-size: .9rem; }

/* ---------- Badges ---------- */
.badge-subject {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(37,99,235,.15);
  font-weight: 500;
  border-radius: 50px;
  padding: .3rem .75rem;
  font-size: .78rem;
}
.badge-day {
  background: var(--accent-light);
  color: #92400E;
  border: 1px solid rgba(245,158,11,.2);
  font-weight: 500;
  border-radius: 50px;
  padding: .3rem .75rem;
  font-size: .78rem;
}
.badge-status-pending { background: #FEF3C7; color: #92400E; }
.badge-status-approved { background: #D1FAE5; color: #065F46; }
.badge-status-rejected { background: #FEE2E2; color: #991B1B; }

/* ---------- Forms ---------- */
.form-control, .form-select {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .65rem 1rem;
  font-family: var(--font-body);
  font-size: .93rem;
  color: var(--dark);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
  outline: none;
}
.form-label {
  font-weight: 600;
  font-size: .88rem;
  color: var(--mid);
  margin-bottom: .4rem;
}
.form-section {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.form-section-title {
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 1.2rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid var(--border);
}
.availability-grid { display: flex; flex-wrap: wrap; gap: .5rem; }
.day-btn, .time-btn {
  padding: .4rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 50px;
  background: var(--white);
  font-size: .85rem;
  font-weight: 500;
  color: var(--mid);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
}
.day-btn.active, .time-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}
.day-btn:hover, .time-btn:hover { border-color: var(--primary); color: var(--primary); }
.subject-checkbox-group { display: flex; flex-wrap: wrap; gap: .5rem; }
.subject-check-label {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .4rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 50px;
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--mid);
  background: var(--white);
}
.subject-check-label input { display: none; }
.subject-check-label.selected {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* ---------- Dashboard ---------- */
.dash-sidebar {
  background: var(--dark);
  min-height: 100vh;
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
}
.dash-sidebar .brand {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: white;
  padding: 1rem 1.5rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
  display: block;
}
.dash-sidebar .brand span { color: var(--accent); }
.dash-nav .nav-link {
  color: rgba(255,255,255,.7) !important;
  font-size: .9rem;
  font-weight: 500;
  padding: .65rem 1.5rem !important;
  display: flex;
  align-items: center;
  gap: .6rem;
  border-radius: 0;
  transition: all var(--transition);
}
.dash-nav .nav-link:hover,
.dash-nav .nav-link.active {
  color: white !important;
  background: rgba(255,255,255,.08);
  border-left: 3px solid var(--accent);
  padding-left: calc(1.5rem - 3px) !important;
}
.dash-main { padding: 2rem; background: var(--light); min-height: 100vh; }
.dash-stat-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
}
.stat-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.stat-icon.blue { background: var(--primary-light); }
.stat-icon.amber { background: var(--accent-light); }
.stat-icon.green { background: #D1FAE5; }
.stat-icon.red { background: #FEE2E2; }
.stat-value { font-size: 1.8rem; font-weight: 700; color: var(--dark); font-family: var(--font-head); line-height: 1; }
.stat-label { font-size: .82rem; color: var(--muted); margin-top: .25rem; }

/* ---------- Tables ---------- */
.table { font-size: .9rem; }
.table th {
  font-weight: 600;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  background: var(--light);
  border-bottom: 2px solid var(--border);
  padding: .9rem 1rem;
}
.table td { padding: .9rem 1rem; vertical-align: middle; color: var(--mid); }
.table tbody tr { transition: background var(--transition); }
.table tbody tr:hover { background: var(--light); }

/* ---------- Page Headers ---------- */
.page-header {
  background: linear-gradient(135deg, var(--dark) 0%, var(--mid) 100%);
  padding: 3.5rem 0 2.5rem;
  color: white;
}
.page-header h1 { color: white; font-size: clamp(1.6rem, 4vw, 2.4rem); margin-bottom: .5rem; }
.page-header p { color: rgba(255,255,255,.7); margin: 0; }
.breadcrumb-item, .breadcrumb-item a, .breadcrumb-item.active {
  color: rgba(255,255,255,.6) !important;
  font-size: .85rem;
}
.breadcrumb-item a:hover { color: white !important; }
.breadcrumb-item + .breadcrumb-item::before { color: rgba(255,255,255,.4) !important; }

/* ---------- Alert Boxes ---------- */
.alert {
  border-radius: var(--radius-sm);
  border: none;
  font-size: .9rem;
  font-weight: 500;
}
.alert-info { background: var(--primary-light); color: var(--primary-dark); }
.alert-warning { background: var(--accent-light); color: #92400E; }
.alert-success { background: #D1FAE5; color: #065F46; }
.alert-danger { background: #FEE2E2; color: #991B1B; }

/* ---------- Profile Page ---------- */
.profile-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 3rem 0;
  color: white;
}
.profile-hero h2 { color: white; }
.profile-hero p { color: rgba(255,255,255,.8); }
.profile-badge {
  background: rgba(255,255,255,.15);
  color: white;
  border-radius: 50px;
  padding: .3rem .9rem;
  font-size: .82rem;
  font-weight: 500;
  backdrop-filter: blur(4px);
}
.contact-blurred {
  filter: blur(5px);
  user-select: none;
  pointer-events: none;
}
.lock-overlay {
  position: relative;
}
.lock-overlay::after {
  content: '🔒 Login to view';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.85);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  font-weight: 600;
  color: var(--mid);
  border-radius: var(--radius-sm);
}

/* ---------- Filter Bar ---------- */
.filter-bar {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}

/* ---------- CTA Section ---------- */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 5rem 0;
  color: white;
  text-align: center;
}
.cta-section h2 { color: white; font-size: clamp(1.6rem, 4vw, 2.4rem); margin-bottom: 1rem; }
.cta-section p { color: rgba(255,255,255,.8); font-size: 1.05rem; margin-bottom: 2rem; }
.cta-section .btn-outline-light:hover { background: var(--white); color: var(--primary); }

/* ---------- Footer ---------- */
footer {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  padding: 3.5rem 0 2rem;
  font-size: .9rem;
}
footer h6 {
  font-family: var(--font-body);
  font-weight: 700;
  color: white;
  margin-bottom: 1rem;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}
footer a {
  color: rgba(255,255,255,.6);
  display: block;
  margin-bottom: .4rem;
  transition: color var(--transition);
  font-size: .875rem;
}
footer a:hover { color: white; }
.footer-brand {
  font-family: var(--font-head);
  font-size: 1.4rem;
  color: white;
  display: block;
  margin-bottom: .75rem;
}
.footer-brand span { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  font-size: .82rem;
  color: rgba(255,255,255,.4);
}
.social-link {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: rgba(255,255,255,.08);
  border-radius: 8px;
  color: rgba(255,255,255,.7) !important;
  margin-right: .5rem;
  transition: all var(--transition);
  font-size: .85rem;
}
.social-link:hover { background: var(--primary); color: white !important; transform: translateY(-2px); }

/* ---------- Login/Register Cards ---------- */
.auth-wrapper {
  min-height: 100vh;
  background: linear-gradient(135deg, #EFF6FF 0%, #FFFBEB 100%);
  display: flex; align-items: center; justify-content: center;
  padding: 2rem 1rem;
}
.auth-card {
  background: var(--white);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 460px;
}
.auth-logo {
  font-family: var(--font-head);
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: .25rem;
}
.auth-logo span { color: var(--accent); }

/* ---------- Status Timeline ---------- */
.status-timeline { list-style: none; padding: 0; position: relative; }
.status-timeline::before {
  content: '';
  position: absolute;
  left: 16px; top: 0; bottom: 0;
  width: 2px;
  background: var(--border);
}
.status-timeline li {
  padding: 0 0 1.5rem 3rem;
  position: relative;
}
.status-timeline li::before {
  content: '';
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--border);
  position: absolute;
  left: 10px; top: 4px;
  border: 2px solid var(--white);
  box-shadow: 0 0 0 2px var(--border);
}
.status-timeline li.done::before { background: var(--success); box-shadow: 0 0 0 2px var(--success); }
.status-timeline li.active::before { background: var(--primary); box-shadow: 0 0 0 2px var(--primary); }
.status-timeline li span { font-size: .88rem; font-weight: 600; color: var(--dark); display: block; }
.status-timeline li small { font-size: .8rem; color: var(--muted); }

/* ---------- Contact Page ---------- */
.contact-icon-box {
  width: 52px; height: 52px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* ---------- Utility ---------- */
.section { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }
.bg-light-custom { background: var(--light); }
.text-muted-custom { color: var(--muted); }
.divider { border-top: 1px solid var(--border); margin: 1.5rem 0; }
.rounded-xl { border-radius: var(--radius) !important; }
.rounded-2xl { border-radius: 20px !important; }

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
  .dash-sidebar { min-height: auto; position: static; }
  .hero { padding: 4rem 0 3rem; }
  .section { padding: 3.5rem 0; }
}
@media (max-width: 767.98px) {
  .auth-card { padding: 1.75rem 1.25rem; }
  .dash-main { padding: 1.25rem; }
  .hero { padding: 3rem 0 2.5rem; }
  .step-connector { display: none; }
  .table-responsive { font-size: .82rem; }
}
@media (max-width: 575.98px) {
  .hero-title { font-size: 1.85rem; }
  .section-title { font-size: 1.5rem; }
}

/* =============================================
   Dark Mode
   ============================================= */

[data-theme="dark"] {
  color-scheme: dark;
  --white:         #1E293B;
  --light:         #0F172A;
  --dark:          #F1F5F9;
  --mid:           #CBD5E1;
  --muted:         #94A3B8;
  --border:        #334155;
  --primary-light: rgba(37,99,235,.18);
  --accent-light:  rgba(245,158,11,.15);
  --shadow-sm:     0 1px 3px rgba(0,0,0,.4),  0 1px 2px rgba(0,0,0,.3);
  --shadow:        0 4px 16px rgba(0,0,0,.45);
  --shadow-lg:     0 8px 32px rgba(0,0,0,.55);
}

/* Hardcoded light gradients / backgrounds */
[data-theme="dark"] .hero {
  background: linear-gradient(135deg, #0D1B2E 0%, #1A2744 100%);
}
[data-theme="dark"] .hero::before {
  background: radial-gradient(circle, rgba(37,99,235,.12) 0%, transparent 70%);
}
[data-theme="dark"] .auth-wrapper {
  background: linear-gradient(135deg, #0F172A 0%, #1A2744 100%);
}
[data-theme="dark"] .page-header {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
}

/* Bootstrap form controls */
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
  background-color: #0F172A;
  color: var(--dark);
  border-color: var(--border);
}
[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
  background-color: #0F172A;
  color: var(--dark);
}
[data-theme="dark"] .form-control::placeholder    { color: var(--muted); }
[data-theme="dark"] .form-control:disabled,
[data-theme="dark"] .form-control[readonly]       { background-color: #1E293B; color: var(--muted); }
[data-theme="dark"] .input-group-text             { background-color: #0F172A; border-color: var(--border); color: var(--muted); }
[data-theme="dark"] .form-check-input             { background-color: #0F172A; border-color: var(--border); }
[data-theme="dark"] .form-check-input:checked     { background-color: var(--primary); border-color: var(--primary); }

/* Bootstrap modal */
[data-theme="dark"] .modal-content               { background-color: var(--white); border-color: var(--border); color: var(--mid); }
[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer                { border-color: var(--border); }

/* Bootstrap dropdown */
[data-theme="dark"] .dropdown-menu               { background-color: var(--white); border-color: var(--border); }
[data-theme="dark"] .dropdown-item               { color: var(--mid); }
[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus         { background-color: var(--light); color: var(--dark); }
[data-theme="dark"] .dropdown-divider            { border-color: var(--border); }
[data-theme="dark"] .dropdown-item-text          { color: var(--muted); }

/* Bootstrap alerts */
[data-theme="dark"] .alert-success  { background: rgba(16,185,129,.15); color: #6EE7B7; border-color: rgba(16,185,129,.2); }
[data-theme="dark"] .alert-danger   { background: rgba(239,68,68,.15);  color: #FCA5A5; border-color: rgba(239,68,68,.2); }
[data-theme="dark"] .alert-warning  { background: rgba(245,158,11,.15); color: #FCD34D; border-color: rgba(245,158,11,.2); }
[data-theme="dark"] .alert-info     { background: rgba(37,99,235,.15);  color: #93C5FD; border-color: rgba(37,99,235,.2); }
[data-theme="dark"] .alert-light    { background: var(--white); color: var(--mid); border-color: var(--border); }

/* Bootstrap badges */
[data-theme="dark"] .badge.bg-success   { background-color: rgba(16,185,129,.2) !important; color: #6EE7B7 !important; }
[data-theme="dark"] .badge.bg-warning   { background-color: rgba(245,158,11,.2) !important; color: #FCD34D !important; }
[data-theme="dark"] .badge.bg-danger    { background-color: rgba(239,68,68,.2)  !important; color: #FCA5A5 !important; }
[data-theme="dark"] .badge.bg-secondary { background-color: rgba(100,116,139,.3) !important; color: #CBD5E1 !important; }
[data-theme="dark"] .badge-status-pending  { background: rgba(245,158,11,.2); color: #FCD34D; }
[data-theme="dark"] .badge-status-approved { background: rgba(16,185,129,.2); color: #6EE7B7; }
[data-theme="dark"] .badge-status-rejected { background: rgba(239,68,68,.2);  color: #FCA5A5; }

/* Bootstrap table */
[data-theme="dark"] .table         { --bs-table-bg: transparent; color: var(--mid); border-color: var(--border); }
[data-theme="dark"] .table th      { background: var(--light); color: var(--muted); border-color: var(--border); }
[data-theme="dark"] .table td      { border-color: var(--border); }
[data-theme="dark"] .table tbody tr:hover { background: var(--light) !important; }

/* Bootstrap buttons */
[data-theme="dark"] .btn-outline-secondary        { color: var(--mid); border-color: var(--border); }
[data-theme="dark"] .btn-outline-secondary:hover  { background-color: var(--border); color: var(--dark); border-color: var(--border); }
[data-theme="dark"] .btn-close                    { filter: invert(1) grayscale(100%) brightness(200%); }

/* Stat icon tints */
[data-theme="dark"] .stat-icon.green { background: rgba(16,185,129,.15); }
[data-theme="dark"] .stat-icon.red   { background: rgba(239,68,68,.15);  }

/* Lock overlay */
[data-theme="dark"] .lock-overlay::after { background: rgba(15,23,42,.88); color: var(--mid); }

/* Login tab bar */
[data-theme="dark"] #tab-bar { background: #0F172A !important; }

/* ── Floating dark-mode toggle button ── */
.theme-toggle-btn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow-lg);
  z-index: 1060;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.theme-toggle-btn:hover {
  background: var(--primary-dark);
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 8px 20px rgba(37,99,235,.45);
}