/* Pages d'erreur — même navbar que la landing, contenu modernisé */

.err-page {
  position: relative;
  min-height: calc(100vh - 180px);
  display: flex;
  align-items: center;
  padding: 48px 0 64px;
  overflow: hidden;
}

.err-aurora {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.err-ab {
  position: absolute;
  border-radius: 50%;
  filter: blur(72px);
  opacity: 0.45;
}

.err-ab1 {
  width: 420px;
  height: 420px;
  top: -120px;
  right: -80px;
  background: color-mix(in srgb, var(--brand) 28%, transparent);
}

.err-ab2 {
  width: 360px;
  height: 360px;
  bottom: -100px;
  left: -60px;
  background: color-mix(in srgb, var(--warn) 22%, transparent);
}

.err-hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 640px;
  margin-inline: auto;
}

.err-card {
  display: grid;
  gap: 0;
  border-radius: var(--rx);
  border: 1px solid var(--bd);
  background: color-mix(in srgb, var(--surf) 94%, transparent);
  backdrop-filter: blur(12px);
  box-shadow: var(--shl);
  overflow: hidden;
}

.err-card-visual {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  border-bottom: 1px solid var(--bd);
  background: linear-gradient(135deg, var(--surf2) 0%, var(--surf) 100%);
}

.err-code-badge {
  font: 700 2.75rem/1 var(--fm);
  letter-spacing: -0.03em;
  color: var(--tx);
}

.err-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--surf);
  border: 1px solid var(--bd);
  color: var(--brand);
  box-shadow: var(--sh);
}

.err-card-body {
  padding: 28px;
}

.err-eyebrow {
  margin: 0 0 8px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tx3);
}

.err-title {
  margin: 0 0 10px;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--tx);
}

.err-desc {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--tx2);
  max-width: 46ch;
}

.err-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.err-actions .btn {
  text-decoration: none;
}

.err-actions .btn:hover {
  transform: translateY(-1px);
}

.err-detail {
  margin: 18px 0 0;
  padding: 12px 14px;
  border-radius: var(--r);
  background: var(--surf2);
  border: 1px solid var(--bd);
  font-size: 0.875rem;
  color: var(--tx2);
  text-align: left;
  line-height: 1.5;
}

.err-debug {
  margin: 18px 0 0;
  padding: 12px 14px;
  border-radius: var(--r);
  background: var(--surf2);
  border: 1px solid var(--bd);
  font: 500 0.75rem/1.5 var(--fm);
  color: var(--tx2);
  text-align: left;
  overflow: auto;
  max-height: 200px;
  white-space: pre-wrap;
}

/* Tons par code HTTP */
.err-page--notfound .err-icon-wrap { color: #6366f1; background: rgba(99, 102, 241, 0.08); border-color: rgba(99, 102, 241, 0.2); }
.err-page--auth .err-icon-wrap { color: #d97706; background: rgba(245, 158, 11, 0.1); border-color: rgba(245, 158, 11, 0.25); }
.err-page--forbidden .err-icon-wrap { color: #dc2626; background: rgba(239, 68, 68, 0.08); border-color: rgba(239, 68, 68, 0.2); }
.err-page--server .err-icon-wrap { color: #dc2626; background: rgba(239, 68, 68, 0.08); border-color: rgba(239, 68, 68, 0.2); }
.err-page--unavailable .err-icon-wrap { color: #0891b2; background: rgba(8, 145, 178, 0.1); border-color: rgba(8, 145, 178, 0.22); }
.err-page--rate .err-icon-wrap { color: #7c3aed; background: rgba(124, 58, 237, 0.1); border-color: rgba(124, 58, 237, 0.22); }

[data-theme="dark"] .err-card {
  background: color-mix(in srgb, var(--surf) 88%, transparent);
  border-color: var(--bd2);
}

[data-theme="dark"] .err-card-visual {
  background: linear-gradient(135deg, var(--surf2) 0%, var(--surf3) 100%);
}

@media (max-width: 560px) {
  .err-card-visual { padding: 18px 20px; }
  .err-code-badge { font-size: 2.1rem; }
  .err-card-body { padding: 22px 20px; }
  .err-actions .btn { flex: 1 1 100%; justify-content: center; }
}