/* ============================================================
   VideoTile — Professional Design System
   ============================================================ */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

/* ── Design Tokens ────────────────────────────────────────── */
:root {
  --vt-primary:       #4f46e5;
  --vt-primary-dark:  #3730a3;
  --vt-primary-light: #818cf8;
  --vt-accent:        #06b6d4;
  --vt-success:       #10b981;
  --vt-warning:       #f59e0b;
  --vt-danger:        #ef4444;

  --vt-bg:            #f1f5f9;
  --vt-surface:       #ffffff;
  --vt-surface-2:     #f8fafc;
  --vt-border:        #e2e8f0;
  --vt-border-dark:   #cbd5e1;

  --vt-text:          #0f172a;
  --vt-text-muted:    #64748b;
  --vt-text-light:    #94a3b8;

  --vt-nav-bg:        #0f172a;
  --vt-nav-border:    #1e293b;

  --vt-shadow-sm:     0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --vt-shadow:        0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
  --vt-shadow-md:     0 10px 15px -3px rgba(0,0,0,.07), 0 4px 6px -4px rgba(0,0,0,.05);
  --vt-shadow-lg:     0 20px 25px -5px rgba(0,0,0,.08), 0 8px 10px -6px rgba(0,0,0,.05);

  --vt-radius-sm:     0.375rem;
  --vt-radius:        0.625rem;
  --vt-radius-lg:     0.875rem;
  --vt-radius-xl:     1.25rem;

  --vt-transition:    all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--vt-bg);
  color: var(--vt-text);
  font-size: 0.9375rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--vt-text);
}

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

a:hover {
  color: var(--vt-primary-dark);
}

/* ── Navbar ───────────────────────────────────────────────── */
.navbar {
  background-color: var(--vt-nav-bg) !important;
  border-bottom: 1px solid var(--vt-nav-border);
  padding: 0.875rem 0;
  box-shadow: 0 1px 0 rgba(255,255,255,.04);
  backdrop-filter: blur(12px);
  position: relative;
  z-index: 1050;
}

.navbar-brand {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #ffffff !important;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-brand::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--vt-primary), var(--vt-accent));
  border-radius: 7px;
  flex-shrink: 0;
}

.navbar .nav-link {
  color: #94a3b8 !important;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 0.875rem !important;
  border-radius: var(--vt-radius-sm);
  transition: var(--vt-transition);
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
  color: #f1f5f9 !important;
  background-color: rgba(255,255,255,.07);
}

.navbar .nav-link.text-warning {
  color: #fbbf24 !important;
}

.navbar .nav-link.text-warning:hover {
  color: #fde68a !important;
  background-color: rgba(251,191,36,.1);
}

.navbar .dropdown-menu {
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: var(--vt-radius);
  box-shadow: 0 20px 40px rgba(0,0,0,.45);
  padding: 0.375rem;
  margin-top: 0.5rem;
  min-width: 200px;
  z-index: 1100;
}

.navbar .dropdown-item {
  color: #94a3b8;
  border-radius: var(--vt-radius-sm);
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--vt-transition);
}

.navbar .dropdown-item:hover {
  background-color: rgba(255,255,255,.07);
  color: #f1f5f9;
}

.navbar .dropdown-item.text-danger {
  color: #fca5a5 !important;
}

.navbar .dropdown-item.text-danger:hover {
  background-color: rgba(239,68,68,.15);
  color: #fca5a5 !important;
}

.navbar .dropdown-divider {
  border-color: #334155;
  margin: 0.375rem 0;
}

/* ── Page layout ──────────────────────────────────────────── */
.container {
  max-width: 1180px;
}

/* Page header row */
.d-flex.justify-content-between.align-items-center.mb-4 h1 {
  font-size: 1.75rem;
  margin-bottom: 0;
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--vt-surface);
  border: 1px solid var(--vt-border);
  border-radius: var(--vt-radius-lg);
  box-shadow: var(--vt-shadow-sm);
  transition: var(--vt-transition);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--vt-shadow-md);
  transform: translateY(-2px);
  border-color: var(--vt-border-dark);
  position: relative;
  z-index: 1;
}

.card-header {
  padding: 1rem 1.375rem;
  border-bottom: 1px solid var(--vt-border);
  font-weight: 600;
  font-size: 0.9375rem;
}

.card-header.bg-primary  { background: linear-gradient(135deg, var(--vt-primary), var(--vt-primary-dark)) !important; border: none; }
.card-header.bg-success  { background: linear-gradient(135deg, #059669, #047857) !important; border: none; }
.card-header.bg-danger   { background: linear-gradient(135deg, var(--vt-danger), #b91c1c) !important; border: none; }
.card-header.bg-dark     { background: linear-gradient(135deg, #1e293b, #0f172a) !important; border: none; }
.card-header.bg-secondary { background: linear-gradient(135deg, #475569, #334155) !important; border: none; }

.card-body {
  padding: 1.5rem;
}

.card-footer {
  background: var(--vt-surface-2);
  border-top: 1px solid var(--vt-border);
  padding: 0.875rem 1.375rem;
}

/* Course cards */
.row-cols-md-3 .card-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.625rem;
}

.row-cols-md-3 .card-text {
  font-size: 0.875rem;
  color: var(--vt-text-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.row-cols-md-3 .card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--vt-radius-sm);
  padding: 0.5rem 1.125rem;
  transition: var(--vt-transition);
  letter-spacing: 0.01em;
  border-width: 1.5px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--vt-primary), var(--vt-primary-dark));
  border-color: var(--vt-primary-dark);
  color: #fff;
  box-shadow: 0 1px 3px rgba(79,70,229,.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--vt-primary-dark), #312e81);
  border-color: #312e81;
  box-shadow: 0 4px 12px rgba(79,70,229,.35);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, var(--vt-success), #059669);
  border-color: #059669;
  color: #fff;
  box-shadow: 0 1px 3px rgba(16,185,129,.3);
}

.btn-success:hover {
  background: linear-gradient(135deg, #059669, #047857);
  box-shadow: 0 4px 12px rgba(16,185,129,.35);
  transform: translateY(-1px);
}

.btn-danger {
  background: linear-gradient(135deg, var(--vt-danger), #dc2626);
  border-color: #dc2626;
  color: #fff;
  box-shadow: 0 1px 3px rgba(239,68,68,.3);
}

.btn-danger:hover {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  box-shadow: 0 4px 12px rgba(239,68,68,.35);
  transform: translateY(-1px);
}

.btn-warning {
  background: linear-gradient(135deg, var(--vt-warning), #d97706);
  border-color: #d97706;
  color: #fff;
  box-shadow: 0 1px 3px rgba(245,158,11,.3);
}

.btn-warning:hover {
  background: linear-gradient(135deg, #d97706, #b45309);
  box-shadow: 0 4px 12px rgba(245,158,11,.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #f1f5f9;
  border-color: var(--vt-border-dark);
  color: var(--vt-text-muted);
}

.btn-secondary:hover {
  background: #e2e8f0;
  border-color: #94a3b8;
  color: var(--vt-text);
}

.btn-outline-primary {
  border-color: var(--vt-primary);
  color: var(--vt-primary);
}

.btn-outline-primary:hover {
  background: var(--vt-primary);
  border-color: var(--vt-primary);
  box-shadow: 0 4px 12px rgba(79,70,229,.25);
}

.btn-outline-secondary {
  border-color: var(--vt-border-dark);
  color: var(--vt-text-muted);
}

.btn-outline-secondary:hover {
  background: var(--vt-text-muted);
  border-color: var(--vt-text-muted);
  color: #fff;
}

.btn-outline-info {
  border-color: var(--vt-accent);
  color: var(--vt-accent);
}

.btn-outline-info:hover {
  background: var(--vt-accent);
  border-color: var(--vt-accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(6,182,212,.25);
}

.btn-outline-danger {
  border-color: var(--vt-danger);
  color: var(--vt-danger);
}

.btn-outline-danger:hover {
  background: var(--vt-danger);
  border-color: var(--vt-danger);
  color: #fff;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: var(--vt-radius);
}

.btn-sm {
  padding: 0.3rem 0.75rem;
  font-size: 0.8125rem;
  border-radius: 0.3rem;
}

/* ── Forms ────────────────────────────────────────────────── */
.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--vt-text);
  margin-bottom: 0.375rem;
}

.form-control {
  border: 1.5px solid var(--vt-border);
  border-radius: var(--vt-radius-sm);
  padding: 0.6rem 0.875rem;
  font-size: 0.9375rem;
  color: var(--vt-text);
  background-color: var(--vt-surface);
  transition: var(--vt-transition);
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}

.form-control:focus {
  border-color: var(--vt-primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
  outline: none;
}

.form-control::placeholder {
  color: var(--vt-text-light);
}

.form-control-lg {
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border-radius: var(--vt-radius);
}

/* ── Badges ───────────────────────────────────────────────── */
.badge {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.3em 0.7em;
  border-radius: 50px;
}

.badge.bg-success  { background: #d1fae5 !important; color: #065f46 !important; }
.badge.bg-danger   { background: #fee2e2 !important; color: #991b1b !important; }
.badge.bg-warning  { background: #fef3c7 !important; color: #92400e !important; }
.badge.bg-secondary { background: #f1f5f9 !important; color: #475569 !important; }
.badge.bg-info     { background: #cffafe !important; color: #164e63 !important; }

/* Large badges (used in UserDetails) */
.badge.fs-6 {
  font-size: 0.8rem !important;
  padding: 0.45em 1em;
}

/* ── Tables ───────────────────────────────────────────────── */
.table-responsive {
  border-radius: var(--vt-radius-lg);
  border: 1px solid var(--vt-border);
  overflow: hidden;
  box-shadow: var(--vt-shadow-sm);
}

.table {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.table thead.table-dark th {
  background: #1e293b;
  color: #94a3b8;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: none;
  padding: 0.875rem 1rem;
}

.table tbody tr {
  border-bottom: 1px solid var(--vt-border);
  transition: background-color 0.15s ease;
}

.table tbody tr:last-child {
  border-bottom: none;
}

.table.table-hover tbody tr:hover {
  background-color: #f8faff;
}

.table tbody td {
  padding: 0.875rem 1rem;
  vertical-align: middle;
  color: var(--vt-text);
  border: none;
}

.table code {
  background: #f1f5f9;
  color: var(--vt-primary);
  padding: 0.2em 0.5em;
  border-radius: 4px;
  font-size: 0.82rem;
}

/* ── Progress bars ────────────────────────────────────────── */
.progress {
  height: 8px;
  border-radius: 50px;
  background-color: #e2e8f0;
  overflow: hidden;
  min-width: 120px;
}

.progress-bar {
  border-radius: 50px;
  font-size: 0;
}

.progress-bar.bg-success { background: linear-gradient(90deg, #10b981, #34d399) !important; }
.progress-bar.bg-info    { background: linear-gradient(90deg, #06b6d4, #22d3ee) !important; }

/* Progress bars in table — show label as tooltip */
td .progress {
  height: 10px;
}

/* ── Alerts ───────────────────────────────────────────────── */
.alert {
  border-radius: var(--vt-radius);
  border-width: 1.5px;
  font-size: 0.9rem;
  padding: 0.875rem 1.125rem;
}

.alert-success {
  background: #ecfdf5;
  border-color: #a7f3d0;
  color: #064e3b;
}

.alert-danger {
  background: #fef2f2;
  border-color: #fecaca;
  color: #7f1d1d;
}

.alert-info {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: #1e3a5f;
}

.alert-warning {
  background: #fffbeb;
  border-color: #fde68a;
  color: #78350f;
}

/* ── Pagination ───────────────────────────────────────────── */
.pagination {
  gap: 0.25rem;
}

.page-link {
  border-radius: var(--vt-radius-sm) !important;
  border: 1.5px solid var(--vt-border);
  color: var(--vt-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  transition: var(--vt-transition);
  background: var(--vt-surface);
  line-height: 1.4;
}

.page-link:hover {
  background: var(--vt-primary);
  border-color: var(--vt-primary);
  color: #fff;
  box-shadow: 0 3px 10px rgba(79,70,229,.25);
}

.page-item.active .page-link {
  background: linear-gradient(135deg, var(--vt-primary), var(--vt-primary-dark));
  border-color: var(--vt-primary-dark);
  color: #fff;
  box-shadow: 0 3px 10px rgba(79,70,229,.3);
}

.page-item.disabled .page-link {
  background: var(--vt-surface-2);
  border-color: var(--vt-border);
  color: var(--vt-text-light);
  pointer-events: none;
}

/* ── Breadcrumb ───────────────────────────────────────────── */
.breadcrumb {
  background: transparent;
  padding: 0;
  margin-bottom: 0;
  font-size: 0.875rem;
}

.breadcrumb-item a {
  color: var(--vt-primary);
  font-weight: 500;
}

.breadcrumb-item a:hover {
  color: var(--vt-primary-dark);
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: var(--vt-text-muted);
  font-weight: 400;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--vt-text-light);
  content: '/';
}

/* ── Detail Lists ─────────────────────────────────────────── */
dl.row dt {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--vt-text-muted);
  padding-top: 0.1rem;
}

dl.row dd {
  font-size: 0.9375rem;
  color: var(--vt-text);
  margin-bottom: 1rem;
  word-break: break-word;
}

dl.row dd code {
  font-size: 0.82rem;
  background: #f1f5f9;
  color: var(--vt-primary);
  padding: 0.2em 0.55em;
  border-radius: 4px;
}

/* ── Login / Admin Login cards ────────────────────────────── */
.card.shadow,
.card.shadow-sm {
  box-shadow: var(--vt-shadow-md) !important;
}

.card.border-danger {
  border-color: #fca5a5 !important;
}

/* ── Code blocks (UserCourse detail) ─────────────────────── */
pre {
  background: #f8fafc;
  border: 1px solid var(--vt-border);
  border-radius: var(--vt-radius);
  padding: 1.25rem;
  overflow-x: auto;
}

pre code {
  font-size: 0.825rem;
  color: #1e293b;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
}

/* ── Page titles ──────────────────────────────────────────── */
h1 {
  font-size: 1.875rem;
}

/* ── Utility helpers ──────────────────────────────────────── */
.text-success { color: var(--vt-success) !important; }
.text-danger  { color: var(--vt-danger)  !important; }
.text-muted   { color: var(--vt-text-muted) !important; }

.fw-bold   { font-weight: 700 !important; }
.fw-semibold { font-weight: 600 !important; }

/* ── Responsive tweaks ────────────────────────────────────── */
@media (max-width: 768px) {
  h1 { font-size: 1.5rem; }

  .card-body { padding: 1.125rem; }

  .d-flex.justify-content-between {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .table thead.table-dark th,
  .table tbody td {
    padding: 0.7rem 0.75rem;
    font-size: 0.85rem;
  }
}

/* ── Entrance animation ───────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.container > *:not(.alert) {
  animation: fadeUp 0.3s ease both;
}

/* Stagger card grid children */
.row-cols-md-3 .col:nth-child(1) { animation-delay: .03s; }
.row-cols-md-3 .col:nth-child(2) { animation-delay: .07s; }
.row-cols-md-3 .col:nth-child(3) { animation-delay: .11s; }
.row-cols-md-3 .col:nth-child(4) { animation-delay: .15s; }
.row-cols-md-3 .col:nth-child(5) { animation-delay: .19s; }
.row-cols-md-3 .col:nth-child(6) { animation-delay: .23s; }
.row-cols-md-3 .col:nth-child(7) { animation-delay: .27s; }
.row-cols-md-3 .col:nth-child(8) { animation-delay: .31s; }
.row-cols-md-3 .col:nth-child(9) { animation-delay: .35s; }

/* ── Course listing cards ──────────────────────────────────── */
.course-card .card-footer {
  padding: 0.875rem 1rem;
}

.course-card .card-footer .btn {
  font-size: 0.8125rem;
  padding: 0.35rem 0.75rem;
}

/* ── Course Detail page ───────────────────────────────────── */
.course-detail-card .card-body .lead {
  color: var(--vt-text);
  font-size: 1rem;
  line-height: 1.7;
}

/* ── Enroll CTA card (right column on Details) ───────────── */
.enroll-card {
  border: 2px solid #d1fae5;
  background: linear-gradient(160deg, #f0fdf4 0%, #ffffff 60%);
  position: sticky;
  top: 1.5rem;
}

.enroll-icon {
  font-size: 3rem;
  line-height: 1;
}

.enroll-btn {
  font-size: 1rem;
  padding: 0.75rem 1.25rem;
  letter-spacing: 0.01em;
}

.enroll-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16,185,129,.35);
}

/* ── My Courses cards ─────────────────────────────────────── */
.my-course-card {
  border: 1px solid var(--vt-border);
  transition: var(--vt-transition);
}

.my-course-card:hover {
  border-color: var(--vt-primary-light);
  box-shadow: var(--vt-shadow-md);
  transform: translateY(-3px);
}

.my-course-card .card-body {
  padding: 1.25rem;
}

.my-course-card .card-footer {
  background: var(--vt-surface);
  border-top: 1px solid var(--vt-border);
  padding: 0.875rem 1.25rem;
}

.watch-btn {
  background: linear-gradient(135deg, var(--vt-primary), var(--vt-accent));
  border: none;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: var(--vt-transition);
}

.watch-btn:hover {
  background: linear-gradient(135deg, var(--vt-primary-dark), #0891b2);
  box-shadow: 0 6px 20px rgba(79,70,229,.3);
  transform: translateY(-1px);
}

/* ── Empty "My Courses" state ─────────────────────────────── */
.enroll-empty-card {
  border: 2px dashed var(--vt-border-dark);
  background: var(--vt-surface);
  max-width: 500px;
  margin: 3rem auto;
}

.empty-icon {
  font-size: 4rem;
  line-height: 1;
}

/* ── Config warning banner (top of page) ─────────────────── */
.config-banner {
  background: #fef3c7;
  border-bottom: 2px solid #fde68a;
  color: #78350f;
  font-size: 0.8125rem;
  padding: 0.6rem 0;
}

.config-banner-code {
  background: #fde68a;
  color: #92400e;
  padding: 0.15em 0.5em;
  border-radius: 4px;
  font-size: 0.75rem;
}

/* ── Login card ───────────────────────────────────────────── */
.login-card {
  border: none;
  border-radius: var(--vt-radius-xl);
  overflow: hidden;
}

.login-card .card-header {
  padding: 1.75rem 1.5rem 1.25rem;
  background: linear-gradient(135deg, #0f172a, #1e293b) !important;
}

.login-logo {
  font-size: 2.5rem;
  line-height: 1;
}

.login-card .card-body {
  padding: 1.75rem 2rem;
}

.login-card .btn-primary {
  padding: 0.75rem;
  font-size: 1rem;
}

/* ── Config warning on Login page ────────────────────────── */
.config-warning {
  border-radius: var(--vt-radius-lg);
  border-color: #fcd34d;
  background: #fffbeb;
  color: #78350f;
  font-size: 0.875rem;
}

.config-pre {
  background: #fef3c7;
  border: 1px solid #fde68a;
  border-radius: var(--vt-radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.78rem;
  color: #78350f;
  margin-top: 0.5rem;
}

.config-pre code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}

/* ── Error Pages ──────────────────────────────────────────── */
.vt-error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.vt-error-card {
  background: var(--vt-surface);
  border: 1px solid var(--vt-border);
  border-radius: var(--vt-radius-xl);
  box-shadow: var(--vt-shadow-lg);
  padding: 3rem 2.5rem;
  max-width: 520px;
  width: 100%;
  text-align: center;
}

.vt-error-icon-wrap {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.vt-error-icon {
  font-size: 2.25rem;
  line-height: 1;
}

/* coloured backgrounds per status */
.vt-error-bg-404 { background: rgba(99,102,241,.1); }
.vt-error-bg-401 { background: rgba(245,158,11,.1); }
.vt-error-bg-403 { background: rgba(239,68,68,.1); }
.vt-error-bg-500 { background: rgba(100,116,139,.1); }

.vt-error-code {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.vt-error-404 { color: var(--vt-primary); }
.vt-error-401 { color: var(--vt-warning); }
.vt-error-403 { color: var(--vt-danger); }
.vt-error-500 { color: var(--vt-text-muted); }

.vt-error-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--vt-text);
}

.vt-error-message {
  color: var(--vt-text-muted);
  font-size: 0.9375rem;
  margin-bottom: 1.75rem;
  line-height: 1.65;
}

.vt-error-path {
  background: var(--vt-surface-2);
  border: 1px solid var(--vt-border);
  border-radius: var(--vt-radius);
  padding: 0.625rem 1rem;
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-align: left;
  flex-wrap: wrap;
}

.vt-error-path-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--vt-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.vt-error-path-value {
  font-size: 0.8125rem;
  color: var(--vt-text);
  background: none;
  padding: 0;
  word-break: break-all;
}

.vt-error-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-vt-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: linear-gradient(135deg, var(--vt-primary), var(--vt-primary-dark));
  color: #fff !important;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.625rem 1.375rem;
  border-radius: var(--vt-radius);
  border: none;
  cursor: pointer;
  transition: var(--vt-transition);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(79,70,229,.35);
}

.btn-vt-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(79,70,229,.45);
}

.btn-vt-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: var(--vt-surface);
  color: var(--vt-text) !important;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.625rem 1.375rem;
  border-radius: var(--vt-radius);
  border: 1px solid var(--vt-border);
  cursor: pointer;
  transition: var(--vt-transition);
  text-decoration: none;
}