/* ─── DNSDIAG Custom Styles (Bootstrap 5.3 supplement) ──────────────────── */

/* ── Root / theme tokens ──────────────────────────────────────────────────── */
:root {
  --app-sidebar-w: 240px;
  --app-topbar-h: 56px;
  --bs-border-radius-xl: 0.75rem;
  --bs-border-radius-2xl: 1rem;
  --app-accent: #2563eb;
  --app-accent-hover: #1d4ed8;
}

/* ── Body & background ────────────────────────────────────────────────────── */
body {
  background-color: #f8fafc;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
[data-bs-theme="dark"] body {
  background-color: #0d1117;
}

/* ── Page entrance animation ──────────────────────────────────────────────── */
@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
main {
  animation: pageFadeIn 0.25s ease both;
}

/* ── Loading / skeleton animations ───────────────────────────────────────── */
@keyframes shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes pulse-ring {
  0%   { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}
@keyframes bounce-dots {
  0%, 80%, 100% { transform: scale(0); opacity: 0.5; }
  40%           { transform: scale(1);   opacity: 1; }
}

.skeleton {
  background: linear-gradient(90deg, var(--bs-tertiary-bg) 25%, var(--bs-secondary-bg) 50%, var(--bs-tertiary-bg) 75%);
  background-size: 800px 100%;
  animation: shimmer 1.6s infinite linear;
  border-radius: 0.375rem;
}

/* Tool loading spinner */
.tool-spinner {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: .875rem;
  color: var(--bs-secondary-color);
}
.tool-spinner::before {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid var(--bs-border-color);
  border-top-color: var(--app-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

/* Progress bar pulse when indeterminate */
.progress-bar.indeterminate {
  background: linear-gradient(90deg, var(--app-accent) 0%, #60a5fa 50%, var(--app-accent) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
}

/* Scan running state */
.scan-running .tool-spinner { display: inline-flex; }
.tool-spinner { display: none; }

/* ── Navbar ───────────────────────────────────────────────────────────────── */
.navbar {
  border-bottom: 1px solid var(--bs-border-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
[data-bs-theme="light"] .navbar {
  background-color: rgba(255,255,255,.92) !important;
}
[data-bs-theme="dark"] .navbar {
  background-color: rgba(13,17,23,.92) !important;
  border-bottom-color: #21262d;
}
.navbar-brand-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border-radius: 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(37,99,235,.35);
}
.navbar-brand:hover .navbar-brand-icon {
  transform: scale(1.07);
  box-shadow: 0 4px 16px rgba(37,99,235,.45);
}
.navbar .nav-link {
  font-size: .875rem;
  font-weight: 500;
  transition: color 0.15s, background 0.15s;
}
.navbar .nav-link:hover,
.navbar .nav-link:focus {
  background: var(--bs-tertiary-bg);
  border-radius: 0.375rem;
}
.navbar .nav-link.active {
  color: var(--app-accent) !important;
  font-weight: 600;
}

/* Nav dropdown menu */
.navbar .dropdown-menu {
  border-radius: 0.875rem;
  box-shadow: 0 8px 32px rgba(0,0,0,.14);
  min-width: 260px;
  border: 1px solid var(--bs-border-color);
  padding: 0.5rem;
}
[data-bs-theme="dark"] .navbar .dropdown-menu {
  background-color: #161b22;
  border-color: #30363d;
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
}
.navbar .dropdown-item {
  padding: 0.5rem 0.625rem;
  font-size: .875rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
}
.navbar .dropdown-item:hover,
.navbar .dropdown-item:focus {
  background: var(--bs-tertiary-bg);
}
.navbar .dropdown-item.active,
.navbar .dropdown-item:active {
  background: rgba(37,99,235,.1);
  color: var(--app-accent);
}
[data-bs-theme="dark"] .navbar .dropdown-item.active,
[data-bs-theme="dark"] .navbar .dropdown-item:active {
  background: rgba(37,99,235,.2);
}
.navbar .dropdown-item .dd-icon {
  width: 32px;
  height: 32px;
  border-radius: 0.4375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.navbar .dropdown-item .dd-label {
  font-size: .875rem;
  font-weight: 600;
  line-height: 1.3;
}
.navbar .dropdown-item .dd-desc {
  font-size: .75rem;
  opacity: .65;
  display: block;
  margin-top: 1px;
  line-height: 1.4;
}

/* ── Page content container (consistent max-width) ────────────────────────── */
.page-content {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem;
}
@media (min-width: 768px) {
  .page-content { padding: 3rem 2rem; }
}

/* ── Flash / alerts ───────────────────────────────────────────────────────── */
.alert {
  border-radius: 0.625rem;
}

/* ── Cards ────────────────────────────────────────────────────────────────── */
.card {
  border-radius: 0.875rem;
  border-color: var(--bs-border-color);
  transition: box-shadow 0.2s;
}
.card-header {
  background: transparent;
  border-bottom: 1px solid var(--bs-border-color);
  padding: 0.875rem 1.25rem;
  font-weight: 600;
}
[data-bs-theme="dark"] .card {
  background-color: #161b22;
  border-color: #30363d;
}
[data-bs-theme="dark"] .card-header {
  background-color: #161b22;
  border-color: #30363d;
}
.card-hover {
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.2s;
}
.card-hover:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,.1) !important;
  transform: translateY(-2px);
}
[data-bs-theme="dark"] .card-hover:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,.35) !important;
}

/* ── Tool cards (home page) ───────────────────────────────────────────────── */
.tool-card {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  padding: 1.25rem;
  border-radius: 0.875rem;
  border: 1px solid var(--bs-border-color);
  text-decoration: none;
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
  background: var(--bs-body-bg);
  height: 100%;
  position: relative;
  overflow: hidden;
}
.tool-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.2s;
  background: linear-gradient(135deg, rgba(37,99,235,.03) 0%, transparent 60%);
}
.tool-card:hover {
  box-shadow: 0 8px 28px rgba(0,0,0,.1);
  transform: translateY(-3px);
  border-color: rgba(37,99,235,.3);
  text-decoration: none;
}
.tool-card:hover::before {
  opacity: 1;
}
[data-bs-theme="dark"] .tool-card {
  background: #161b22;
  border-color: #30363d;
}
[data-bs-theme="dark"] .tool-card:hover {
  box-shadow: 0 8px 28px rgba(0,0,0,.4);
  border-color: rgba(96,165,250,.3);
}
.tool-card .tool-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.tool-card .tool-title {
  font-weight: 650;
  font-size: .9375rem;
  line-height: 1.3;
  color: var(--bs-body-color);
}
.tool-card .tool-desc {
  font-size: .8125rem;
  color: var(--bs-secondary-color);
  line-height: 1.5;
}
.tool-card .tool-arrow {
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s, transform 0.2s;
  margin-left: auto;
  color: var(--bs-secondary-color);
}
.tool-card:hover .tool-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ── Tables ───────────────────────────────────────────────────────────────── */
.table th {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--bs-secondary-color);
  background-color: var(--bs-tertiary-bg);
  border-bottom: 1px solid var(--bs-border-color);
  white-space: nowrap;
}
.table td {
  font-size: .875rem;
  vertical-align: middle;
}
.table-card {
  border-radius: 0.875rem;
  border: 1px solid var(--bs-border-color);
  overflow: visible;
}
.table-card > .table-responsive,
.table-card > table {
  border-radius: 0.875rem;
  overflow: hidden;
}
.table-card .table {
  margin-bottom: 0;
}
[data-bs-theme="dark"] .table {
  --bs-table-striped-bg: rgba(255,255,255,.03);
  --bs-table-hover-bg:   rgba(255,255,255,.04);
}
[data-bs-theme="dark"] .table-light {
  --bs-table-bg: #1c2128;
  --bs-table-border-color: #30363d;
}

/* ── Badges ───────────────────────────────────────────────────────────────── */
.badge {
  font-weight: 500;
  font-size: .7rem;
  letter-spacing: .02em;
  padding: .35em .65em;
}

/* ── Sidebar (admin) ──────────────────────────────────────────────────────── */
.admin-sidebar {
  width: var(--app-sidebar-w);
  min-width: var(--app-sidebar-w);
  height: 100vh;
  background: #fff;
  border-right: 1px solid var(--bs-border-color);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  overflow-y: auto;
  transition: transform 0.25s ease;
  z-index: 1040;
}
[data-bs-theme="dark"] .admin-sidebar {
  background: #0d1117;
  border-right-color: #21262d;
}
.admin-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}
.admin-content {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  background: var(--bs-body-bg);
}

/* Sidebar backdrop (mobile) */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 1039;
}
.sidebar-backdrop.show { display: block; }

/* Mobile: sidebar off-canvas */
@media (max-width: 767.98px) {
  .admin-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    transform: translateX(-100%);
  }
  .admin-sidebar.sidebar-open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0,0,0,.18);
  }
  .admin-layout {
    flex-direction: column;
  }
  .admin-content {
    width: 100%;
  }
}

/* Sidebar group labels */
.sidebar-group-label {
  font-size: .6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--bs-secondary-color);
  padding: 1rem 0.75rem 0.25rem;
  opacity: .6;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.4375rem 0.75rem;
  border-radius: 0.5rem;
  font-size: .8125rem;
  font-weight: 500;
  color: var(--bs-body-color);
  text-decoration: none;
  transition: background 0.12s, color 0.12s;
}
.sidebar-link:hover {
  background: var(--bs-tertiary-bg);
  color: var(--bs-body-color);
}
.sidebar-link.active {
  background: rgba(37,99,235,.1);
  color: var(--app-accent);
  font-weight: 600;
}
[data-bs-theme="dark"] .sidebar-link.active {
  background: rgba(37,99,235,.2);
  color: #60a5fa;
}
.sidebar-link svg {
  flex-shrink: 0;
  width: 15px;
  height: 15px;
  opacity: .75;
}
.sidebar-link.active svg {
  opacity: 1;
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  border-radius: 0.5rem;
  font-weight: 500;
  transition: all 0.15s;
}
.btn-sm {
  border-radius: 0.375rem;
}
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border-color: #1d4ed8;
  box-shadow: 0 1px 4px rgba(37,99,235,.25);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  border-color: #1e40af;
  box-shadow: 0 2px 8px rgba(37,99,235,.35);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(0);
}

/* ── Form controls ────────────────────────────────────────────────────────── */
.form-control, .form-select {
  border-radius: 0.5rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-control:focus, .form-select:focus {
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
  border-color: #2563eb;
}
.form-label {
  font-size: .8125rem;
  font-weight: 500;
  margin-bottom: 0.375rem;
  color: var(--bs-body-color);
}

/* ── Avatar initials ──────────────────────────────────────────────────────── */
.avatar-initials {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Code / pre ───────────────────────────────────────────────────────────── */
.code-block {
  background: var(--bs-tertiary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: 0.5rem;
  padding: 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: .8125rem;
  overflow-x: auto;
  white-space: pre;
}

/* ── Stat cards (dashboard) ───────────────────────────────────────────────── */
.stat-card {
  border-radius: 0.875rem;
  padding: 1.25rem;
  border: 1px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  transition: box-shadow 0.2s;
}
[data-bs-theme="dark"] .stat-card {
  background: #161b22;
}
.stat-card .stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
}
.stat-card .stat-label {
  font-size: .8rem;
  color: var(--bs-secondary-color);
  font-weight: 500;
  margin-top: .25rem;
}

/* ── Lookup result sections ───────────────────────────────────────────────── */
.result-section {
  border-radius: 0.875rem;
  border: 1px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  overflow: hidden;
}
[data-bs-theme="dark"] .result-section {
  background: #161b22;
}
.result-section-header {
  background: var(--bs-tertiary-bg);
  padding: 0.75rem 1rem;
  font-size: .8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--bs-secondary-color);
  border-bottom: 1px solid var(--bs-border-color);
}

/* ── Hero section (home page) ─────────────────────────────────────────────── */
.hero-section {
  padding: 4rem 0 3rem;
  text-align: center;
  position: relative;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: min(700px, 100%);
  height: 300px;
  background: radial-gradient(ellipse at center, rgba(37,99,235,.12) 0%, transparent 70%);
  pointer-events: none;
}
[data-bs-theme="dark"] .hero-section::before {
  background: radial-gradient(ellipse at center, rgba(37,99,235,.18) 0%, transparent 70%);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.875rem;
  background: rgba(37,99,235,.08);
  border: 1px solid rgba(37,99,235,.2);
  border-radius: 100px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--app-accent);
  margin-bottom: 1.25rem;
}
[data-bs-theme="dark"] .hero-badge {
  background: rgba(37,99,235,.15);
  border-color: rgba(96,165,250,.3);
  color: #60a5fa;
}
.hero-title {
  font-size: clamp(1.875rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
}
.hero-sub {
  font-size: 1.0625rem;
  color: var(--bs-secondary-color);
  max-width: 38rem;
  margin: 0 auto;
  line-height: 1.65;
}

/* ── Quick lookup form (hero) ─────────────────────────────────────────────── */
.lookup-form {
  max-width: 560px;
  margin: 0 auto;
}
.lookup-form .input-group .form-control {
  border-radius: 0.625rem 0 0 0.625rem;
  height: 46px;
  font-size: .9375rem;
}
.lookup-form .input-group .btn {
  border-radius: 0 0.625rem 0.625rem 0;
  height: 46px;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ── Footer ───────────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--bs-body-bg);
  border-top: 1px solid var(--bs-border-color);
  margin-top: auto;
}
[data-bs-theme="dark"] .site-footer {
  background: #0d1117;
  border-top-color: #21262d;
}
.footer-brand-icon {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border-radius: 0.4375rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.footer-link {
  color: var(--bs-secondary-color);
  text-decoration: none;
  font-size: .8125rem;
  transition: color 0.15s;
  display: block;
  padding: 0.2rem 0;
}
.footer-link:hover {
  color: var(--bs-body-color);
}
.footer-heading {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--bs-secondary-color);
  margin-bottom: 0.875rem;
  opacity: .7;
}

/* ── Skip to content (a11y) ───────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -40px;
  left: 1rem;
  z-index: 9999;
  background: #1d4ed8;
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 0 0 0.5rem 0.5rem;
  font-size: .875rem;
  font-weight: 600;
  text-decoration: none;
  transition: top .15s;
}
.skip-link:focus {
  top: 0;
  color: #fff;
}

/* ── Dark mode toggle icon swap ───────────────────────────────────────────── */
.icon-sun  { display: none; }
.icon-moon { display: block; }
[data-bs-theme="dark"] .icon-sun  { display: block; }
[data-bs-theme="dark"] .icon-moon { display: none; }

/* ── DNS scan animation ───────────────────────────────────────────────────── */
@keyframes scan-spin {
  to { transform: rotate(360deg); }
}
@keyframes scan-ping {
  0%   { transform: scale(1);   opacity: .6; }
  75%  { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(2.2); opacity: 0; }
}
@keyframes scan-dot {
  0%, 80%, 100% { transform: scale(0.4); opacity: .3; }
  40%           { transform: scale(1);   opacity: 1; }
}
.scan-card {
  border-radius: 0.875rem;
  border: 1px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  padding: 2rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.scan-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,.03) 0%, transparent 60%);
  pointer-events: none;
}
[data-bs-theme="dark"] .scan-card {
  background: #161b22;
  border-color: #30363d;
}
.scan-icon-wrap {
  position: relative;
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
}
.scan-ping-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(37,99,235,.15);
  animation: scan-ping 1.8s cubic-bezier(0,0,.2,1) infinite;
}
.scan-ping-ring.delay { animation-delay: .6s; }
.scan-icon-bg {
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: rgba(37,99,235,.12);
  border: 2px solid rgba(37,99,235,.25);
  display: flex;
  align-items: center;
  justify-content: center;
}
[data-bs-theme="dark"] .scan-icon-bg {
  background: rgba(37,99,235,.2);
  border-color: rgba(96,165,250,.3);
}
.scan-spinner-svg {
  animation: scan-spin 2s linear infinite;
  color: #2563eb;
}
[data-bs-theme="dark"] .scan-spinner-svg { color: #60a5fa; }
.scan-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-top: .75rem;
}
.scan-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #2563eb;
  animation: scan-dot 1.4s ease-in-out infinite;
}
[data-bs-theme="dark"] .scan-dot { background: #60a5fa; }
.scan-dot:nth-child(1) { animation-delay: 0s; }
.scan-dot:nth-child(2) { animation-delay: .2s; }
.scan-dot:nth-child(3) { animation-delay: .4s; }

/* ── DNS Diagnostic page animations ─────────────────────────────────────── */
@keyframes dns-row-in {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: translateX(0); }
}
.dns-row-enter {
  animation: dns-row-in .18s ease both;
}

@keyframes dns-section-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.dns-section-enter {
  animation: dns-section-in .25s ease both;
}

@keyframes dns-stat-pop {
  0%   { transform: scale(1); }
  45%  { transform: scale(1.5); }
  100% { transform: scale(1); }
}
.dns-stat-pop {
  display: inline-block;
  animation: dns-stat-pop .25s ease;
}

/* ── Utilities ────────────────────────────────────────────────────────────── */
.cursor-pointer { cursor: pointer; }
.font-monospace-sm { font-family: ui-monospace, monospace; font-size: .8125rem; }
.min-w-0 { min-width: 0; }
.text-truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.fw-650 { font-weight: 650; }
.opacity-60 { opacity: .6; }

/* ── Captcha challenge card ───────────────────────────────────────────────── */
@keyframes captcha-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(234,88,12,.35); }
  50%       { box-shadow: 0 0 0 10px rgba(234,88,12,0); }
}
@keyframes captcha-shake {
  0%, 100% { transform: translateX(0); }
  15%       { transform: translateX(-7px); }
  30%       { transform: translateX(7px); }
  45%       { transform: translateX(-5px); }
  60%       { transform: translateX(5px); }
  75%       { transform: translateX(-3px); }
  90%       { transform: translateX(3px); }
}
.captcha-challenge-card {
  border: 2px solid #ea580c;
  border-radius: .75rem;
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
  padding: 1.25rem 1.375rem;
  animation: captcha-pulse 2s ease-in-out 3;
  position: relative;
  overflow: hidden;
}
.captcha-challenge-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    135deg,
    transparent,
    transparent 12px,
    rgba(234,88,12,.04) 12px,
    rgba(234,88,12,.04) 24px
  );
  pointer-events: none;
}
[data-bs-theme="dark"] .captcha-challenge-card {
  background: linear-gradient(135deg, #1c1208 0%, #241a0a 100%);
  border-color: #f97316;
}
.captcha-challenge-card.captcha-shake {
  animation: captcha-shake .55s cubic-bezier(.36,.07,.19,.97) both;
}
.captcha-challenge-inner {
  display: flex;
  align-items: flex-start;
  gap: .875rem;
}
.captcha-challenge-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(234,88,12,.15);
  color: #ea580c;
  display: flex;
  align-items: center;
  justify-content: center;
}
[data-bs-theme="dark"] .captcha-challenge-icon {
  background: rgba(249,115,22,.2);
  color: #fb923c;
}
.captcha-challenge-title {
  font-weight: 700;
  font-size: 1rem;
  color: #c2410c;
  margin-bottom: .2rem;
}
[data-bs-theme="dark"] .captcha-challenge-title { color: #fb923c; }
.captcha-challenge-desc {
  font-size: .8375rem;
  color: #7c4a1e;
  line-height: 1.45;
}
[data-bs-theme="dark"] .captcha-challenge-desc { color: #d4906a; }
.captcha-equation {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.captcha-math {
  font-family: ui-monospace, 'Cascadia Code', monospace;
  font-size: 1.25rem;
  font-weight: 700;
  color: #c2410c;
  background: rgba(234,88,12,.1);
  padding: .3rem .75rem;
  border-radius: .5rem;
  letter-spacing: .04em;
}
[data-bs-theme="dark"] .captcha-math { color: #fb923c; background: rgba(249,115,22,.15); }
.captcha-answer-input {
  width: 5.5rem;
  padding: .45rem .75rem;
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  border: 2px solid #ea580c;
  border-radius: .5rem;
  background: #fff;
  color: #1e293b;
  outline: none;
  font-family: ui-monospace, monospace;
  transition: border-color .15s, box-shadow .15s;
}
.captcha-answer-input:focus {
  border-color: #c2410c;
  box-shadow: 0 0 0 3px rgba(234,88,12,.25);
  background: #fff7ed;
}
[data-bs-theme="dark"] .captcha-answer-input {
  background: #1c1208;
  color: #fde8d0;
  border-color: #f97316;
}
[data-bs-theme="dark"] .captcha-answer-input:focus {
  box-shadow: 0 0 0 3px rgba(249,115,22,.3);
  background: #241a0a;
}
.captcha-hint {
  font-size: .78rem;
  color: #9a6236;
  font-style: italic;
}
[data-bs-theme="dark"] .captcha-hint { color: #b07848; }

/* ── WHOIS / RDAP page ────────────────────────────────────────────────────── */
.whois-header-card {
  background: var(--bs-body-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: .75rem;
  padding: 1.25rem 1.375rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.whois-header-top {
  display: flex;
  align-items: center;
  gap: .875rem;
  flex-wrap: wrap;
  margin-bottom: .875rem;
}
.whois-domain-name {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -.02em;
  font-family: ui-monospace, 'Cascadia Code', monospace;
  color: var(--bs-body-color);
  word-break: break-all;
}
.whois-status-badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .3rem .75rem;
  border-radius: 2rem;
  font-size: .78rem;
  font-weight: 600;
  flex-shrink: 0;
}
.whois-status-registered  { background: #dcfce7; color: #15803d; }
.whois-status-available   { background: #fef9c3; color: #854d0e; }
[data-bs-theme="dark"] .whois-status-registered { background: #052e16; color: #4ade80; }
[data-bs-theme="dark"] .whois-status-available  { background: #1c1a08; color: #facc15; }

.whois-source-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.whois-proto-chip {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .72rem;
  font-weight: 600;
  padding: .2rem .55rem;
  border-radius: 2rem;
  border: 1px solid;
}
.chip-available   { background: #f0fdf4; color: #16a34a; border-color: #bbf7d0; }
.chip-unavailable { background: #fef2f2; color: #dc2626; border-color: #fecaca; }
.chip-neutral     { background: #f8fafc; color: #64748b; border-color: #cbd5e1; }
[data-bs-theme="dark"] .chip-available   { background: #052e16; color: #4ade80; border-color: #166534; }
[data-bs-theme="dark"] .chip-unavailable { background: #2d0a0a; color: #f87171; border-color: #7f1d1d; }
[data-bs-theme="dark"] .chip-neutral     { background: #1e293b; color: #94a3b8; border-color: #334155; }

.whois-source-tabs {
  display: flex;
  background: var(--bs-tertiary-bg);
  border-radius: .5rem;
  padding: 3px;
  gap: 2px;
}
.whois-source-tab {
  padding: .3rem .875rem;
  border-radius: .375rem;
  font-size: .8rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--bs-secondary-color);
  transition: background .15s, color .15s;
}
.whois-source-tab:hover:not(.disabled):not(.active) {
  background: var(--bs-secondary-bg);
  color: var(--bs-body-color);
}
.whois-source-tab.active {
  background: var(--bs-body-bg);
  color: var(--bs-body-color);
  box-shadow: 0 1px 3px rgba(0,0,0,.1);
}
.whois-source-tab.disabled {
  opacity: .4;
  pointer-events: none;
}
.whois-refresh-btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .8rem;
  color: var(--bs-secondary-color);
  text-decoration: none;
  padding: .3rem .6rem;
  border-radius: .375rem;
  transition: color .15s, background .15s;
}
.whois-refresh-btn:hover {
  color: var(--bs-body-color);
  background: var(--bs-secondary-bg);
}

.whois-dates-row {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
}
.whois-date-card {
  flex: 1;
  min-width: 180px;
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  background: var(--bs-body-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: .625rem;
  padding: .875rem 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.whois-date-icon {
  width: 34px;
  height: 34px;
  border-radius: .5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.whois-date-label {
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--bs-secondary-color);
  margin-bottom: .2rem;
}
.whois-date-value {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--bs-body-color);
  font-family: ui-monospace, monospace;
}
.whois-date-time {
  font-size: .7rem;
  font-weight: 500;
  color: var(--bs-secondary-color);
  font-family: ui-monospace, monospace;
  margin-top: .1rem;
}

.whois-card-header {
  display: flex;
  align-items: center;
  gap: .625rem;
  padding: .625rem 1rem;
  border-bottom: 1px solid var(--bs-border-color);
  background: var(--bs-tertiary-bg);
}
.whois-detail-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: .5rem 1rem;
  border-bottom: 1px solid var(--bs-border-color);
}
.whois-detail-row:last-child { border-bottom: none; }
.whois-detail-label {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .78rem;
  font-weight: 600;
  color: var(--bs-secondary-color);
  min-width: 10rem;
  flex-shrink: 0;
  margin-bottom: 0;
  padding-top: .125rem;
}
.whois-detail-value {
  font-size: .8125rem;
  color: var(--bs-body-color);
  margin-bottom: 0;
  word-break: break-all;
}

.whois-raw-toggle {
  background: none;
  border: none;
  color: var(--bs-body-color);
  cursor: pointer;
  transition: background .15s;
}
.whois-raw-toggle:hover { background: var(--bs-tertiary-bg); }
.whois-toggle-chevron { transition: transform .2s ease; flex-shrink: 0; }
.whois-raw-pre {
  padding: 1.25rem;
  font-size: .75rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 28rem;
  overflow-y: auto;
  background: var(--bs-tertiary-bg);
  color: var(--bs-body-color);
  font-family: ui-monospace, 'Cascadia Code', monospace;
}

/* Result section header (shared) */
.result-section-header {
  background: var(--bs-tertiary-bg);
  border-bottom: 1px solid var(--bs-border-color);
}

/* ── WHOIS data-source toggle ─────────────────────────────────────────────── */
.whois-data-toggle {
  display: flex;
  gap: .5rem;
}
.wdt-option {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: .7rem 1rem;
  border-radius: .625rem;
  border: 2px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  text-decoration: none;
  color: var(--bs-secondary-color);
  transition: border-color .15s, background .15s, box-shadow .15s;
  cursor: pointer;
}
.wdt-option:hover {
  border-color: rgba(37,99,235,.4);
  background: var(--bs-tertiary-bg);
  color: var(--bs-body-color);
  text-decoration: none;
}
.wdt-option.active {
  border-color: #2563eb;
  background: rgba(37,99,235,.06);
  color: var(--bs-body-color);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
[data-bs-theme="dark"] .wdt-option { background: #0d1117; border-color: #30363d; }
[data-bs-theme="dark"] .wdt-option:hover { background: #161b22; border-color: rgba(96,165,250,.4); }
[data-bs-theme="dark"] .wdt-option.active { border-color: #3b82f6; background: rgba(59,130,246,.1); box-shadow: 0 0 0 3px rgba(59,130,246,.15); }
.wdt-option-disabled {
  opacity: .5;
  cursor: default;
  pointer-events: none;
}
.wdt-top {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.wdt-badge {
  font-size: .72rem;
  font-weight: 700;
  font-family: ui-monospace, 'Cascadia Code', monospace;
  letter-spacing: .04em;
  padding: .2rem .55rem;
  border-radius: .375rem;
  background: var(--bs-tertiary-bg);
  color: var(--bs-body-color);
  transition: background .15s;
}
.wdt-option.active .wdt-badge {
  background: #2563eb;
  color: #fff;
}
[data-bs-theme="dark"] .wdt-option.active .wdt-badge { background: #3b82f6; }
.wdt-label {
  font-size: .72rem;
  font-weight: 500;
  color: var(--bs-secondary-color);
  line-height: 1.3;
}
.wdt-option.active .wdt-label { color: var(--bs-body-color); }

/* ── WHOIS refresh strip ──────────────────────────────────────────────────── */
.whois-refresh-strip {
  display: flex;
  align-items: center;
  gap: .625rem;
  flex-wrap: wrap;
}
.whois-refresh-btn-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-shrink: 0;
}
.whois-refresh-btn-main {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem .8rem;
  font-size: .8rem;
  font-weight: 600;
  border-radius: .5rem;
  background: var(--bs-tertiary-bg);
  border: 1px solid var(--bs-border-color);
  color: var(--bs-body-color);
  text-decoration: none;
  transition: background .15s, border-color .15s, opacity .15s;
  white-space: nowrap;
}
.whois-refresh-btn-main:hover {
  background: var(--bs-secondary-bg);
  border-color: rgba(37,99,235,.35);
  color: var(--bs-body-color);
  text-decoration: none;
}
.whois-refresh-btn-main.whois-refresh-btn-disabled {
  opacity: .5;
  pointer-events: none;
  cursor: not-allowed;
}
[data-bs-theme="dark"] .whois-refresh-btn-main { background: #161b22; border-color: #30363d; }
[data-bs-theme="dark"] .whois-refresh-btn-main:hover { background: #1c2128; border-color: rgba(96,165,250,.35); }

/* Hourglass icon shown + animated during cooldown */
@keyframes hourglass-flip {
  0%   { transform: rotate(0deg); }
  40%  { transform: rotate(0deg); }
  60%  { transform: rotate(180deg); }
  100% { transform: rotate(180deg); }
}
.whois-hourglass { display: none; }
.whois-refresh-icon { display: inline; }
.whois-refresh-btn-main.whois-refresh-btn-disabled .whois-hourglass {
  display: inline;
  animation: hourglass-flip 2s ease-in-out infinite;
  transform-origin: center;
}
.whois-refresh-btn-main.whois-refresh-btn-disabled .whois-refresh-icon { display: none; }

/* Blocked badge shown when server refused the refresh */
.whois-refresh-blocked-badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .72rem;
  font-weight: 600;
  padding: .25rem .6rem;
  border-radius: 2rem;
  background: #fef9c3;
  color: #854d0e;
  border: 1px solid #fde68a;
}
[data-bs-theme="dark"] .whois-refresh-blocked-badge {
  background: #1c1a08;
  color: #facc15;
  border-color: #713f12;
}

/* ── WHOIS mobile responsiveness ─────────────────────────────────────────── */
@media (max-width: 575px) {
  /* Stack toggle options vertically on small screens */
  .whois-data-toggle {
    flex-direction: column;
  }
  .wdt-option {
    flex-direction: row;
    align-items: center;
    gap: .75rem;
    padding: .6rem .875rem;
  }
  .wdt-top {
    flex-shrink: 0;
    gap: .4rem;
  }
  .wdt-label {
    flex: 1;
    font-size: .75rem;
  }

  /* Shrink domain name so long names don't overflow */
  .whois-domain-name {
    font-size: 1.1rem;
  }

  /* Stack label/value pairs in detail rows */
  .whois-detail-row {
    flex-direction: column;
    gap: .15rem;
    padding: .55rem 1rem;
  }
  .whois-detail-label {
    min-width: unset;
  }

  /* Wrap refresh strip items and let blocked badge break to next line */
  .whois-refresh-strip {
    gap: .4rem;
  }

  /* Date cards take full width on xs */
  .whois-date-card {
    min-width: 100%;
  }
}

@media (max-width: 399px) {
  .whois-header-card {
    padding: 1rem .875rem;
  }
}

/* ── DNSSEC Validator page ────────────────────────────────────────────────── */

/* Score ring */
.dnssec-score-ring {
  position: relative;
  width: 5rem;
  height: 5rem;
}
.dnssec-score-svg {
  width: 5rem;
  height: 5rem;
}
.dnssec-score-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
}

/* AD bit chip row */
.dnssec-ad-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
}
.dnssec-ad-chip {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .2rem .55rem;
  border-radius: 99px;
  font-size: .72rem;
  font-family: var(--bs-font-monospace);
  border: 1px solid;
}
.dnssec-ad-ok   { background: #f0fdf4; color: #16a34a; border-color: #86efac; }
.dnssec-ad-warn { background: #fffbeb; color: #ca8a04; border-color: #fde68a; }
.dnssec-ad-error{ background: var(--bs-secondary-bg); color: var(--bs-secondary-color); border-color: var(--bs-border-color); }
.dnssec-ad-dot  { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

[data-bs-theme="dark"] .dnssec-ad-ok   { background: #052e16; color: #4ade80; border-color: #166534; }
[data-bs-theme="dark"] .dnssec-ad-warn { background: #1c1a08; color: #facc15; border-color: #713f12; }

/* Chain of trust links */
.dnssec-chain-link {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .75rem 1rem;
  border-radius: .5rem;
  background: var(--link-bg, #f9fafb);
  border: 1px solid color-mix(in srgb, var(--link-color, #6b7280) 25%, transparent);
}
[data-bs-theme="dark"] .dnssec-chain-link {
  background: color-mix(in srgb, var(--link-color, #6b7280) 10%, #161b22);
}
.dnssec-chain-icon {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: .35rem;
  background: color-mix(in srgb, var(--link-color, #6b7280) 15%, transparent);
  color: var(--link-color, #6b7280);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.dnssec-chain-level-badge {
  display: inline-block;
  padding: .1rem .45rem;
  border-radius: .25rem;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: color-mix(in srgb, var(--link-color, #6b7280) 18%, transparent);
  color: var(--link-color, #6b7280);
}

/* Validation log rows */
.dnssec-log-row {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .55rem 1rem;
  border-bottom: 1px solid var(--bs-border-color);
}
.dnssec-log-row:last-child { border-bottom: none; }
.dnssec-log-ok   { background: #f0fdf4; }
.dnssec-log-fail { background: #fef2f2; }
.dnssec-log-warn { background: #fffbeb; }
.dnssec-log-info { background: transparent; }
[data-bs-theme="dark"] .dnssec-log-ok   { background: #052e16; }
[data-bs-theme="dark"] .dnssec-log-fail { background: #3b0000; }
[data-bs-theme="dark"] .dnssec-log-warn { background: #1c1a08; }

/* Resolver radio picker */
.dnssec-resolver-row {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.dnssec-res-opt {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .45rem .85rem .45rem .6rem;
  border-radius: 999px;
  border: 1.5px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  cursor: pointer;
  user-select: none;
  transition: border-color .15s, background .15s, box-shadow .15s;
  font-size: .85rem;
  line-height: 1.2;
  white-space: nowrap;
}
.dnssec-res-opt:hover {
  border-color: #0d6efd;
  background: color-mix(in srgb, #0d6efd 6%, var(--bs-body-bg));
}
.dnssec-res-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}
/* Custom radio circle */
.dnssec-res-mark {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: 1.5px solid #adb5bd;
  background: var(--bs-body-bg);
  transition: border-color .15s, background .15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dnssec-res-mark::after {
  content: '';
  width: .4rem;
  height: .4rem;
  border-radius: 50%;
  background: transparent;
  transition: background .15s;
}
/* Selected state */
.dnssec-res-opt:has(.dnssec-res-input:checked) {
  border-color: #0d6efd;
  background: color-mix(in srgb, #0d6efd 8%, var(--bs-body-bg));
  box-shadow: 0 0 0 3px color-mix(in srgb, #0d6efd 18%, transparent);
}
.dnssec-res-opt:has(.dnssec-res-input:checked) .dnssec-res-mark {
  border-color: #0d6efd;
  background: #0d6efd;
}
.dnssec-res-opt:has(.dnssec-res-input:checked) .dnssec-res-mark::after {
  background: #fff;
}
/* Provider color dot */
.dnssec-res-dot {
  flex-shrink: 0;
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
}
/* Text block */
.dnssec-res-text {
  display: flex;
  flex-direction: column;
  gap: .05rem;
}
.dnssec-res-name {
  font-weight: 500;
  color: var(--bs-body-color);
}
.dnssec-res-ip {
  font-size: .75rem;
  color: var(--bs-secondary-color);
  font-family: var(--bs-font-monospace, monospace);
}
/* Dark mode tweaks */
[data-bs-theme="dark"] .dnssec-res-opt:hover {
  background: color-mix(in srgb, #0d6efd 10%, var(--bs-body-bg));
}
[data-bs-theme="dark"] .dnssec-res-opt:has(.dnssec-res-input:checked) {
  background: color-mix(in srgb, #0d6efd 15%, var(--bs-body-bg));
}
/* Custom resolver input row */
#customResolverWrap {
  display: none;
}
#customResolverWrap.visible {
  display: flex;
}

/* ── Propagation skeleton loaders ────────────────────────────────────────── */
@keyframes prop-shimmer {
  0%   { background-position: -600px 0; }
  100% { background-position:  600px 0; }
}
.prop-skeleton-card {
  border-radius: .5rem;
  border: 1px solid var(--bs-border-color);
  overflow: hidden;
}
.prop-skeleton-bar {
  height: .85rem;
  border-radius: .3rem;
  background: linear-gradient(90deg,
    var(--bs-tertiary-bg) 25%,
    var(--bs-secondary-bg) 50%,
    var(--bs-tertiary-bg) 75%);
  background-size: 600px 100%;
  animation: prop-shimmer 1.5s ease-in-out infinite;
}
.prop-skeleton-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .55rem 1rem;
  background: var(--bs-tertiary-bg);
  border-bottom: 1px solid var(--bs-border-color);
}
.prop-skeleton-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .55rem 1rem;
  border-bottom: 1px solid var(--bs-border-color);
}
.prop-skeleton-row:last-child { border-bottom: none; }

/* ── Propagation live animations ─────────────────────────────────────────── */

/* Spinner pulse ring */
.prop-spinner-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
@keyframes prop-spin-ring {
  0%   { transform: scale(1);   opacity: .5; }
  100% { transform: scale(2.6); opacity: 0;  }
}
.prop-strip-scanning .prop-spinner-wrap::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1.5px solid #0d6efd;
  animation: prop-spin-ring 1.6s ease-out infinite;
}

/* Live dot next to scan message */
@keyframes prop-live-blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .3; transform: scale(.7); }
}
.prop-live-dot {
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: #0d6efd;
  flex-shrink: 0;
  animation: prop-live-blink 1.2s ease-in-out infinite;
}
.prop-live-dot.prop-live-dot-done {
  background: #22c55e;
  animation: none;
}

/* Scanner beam on scan strip card */
@keyframes prop-beam {
  0%   { left: -35%; opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { left: 110%; opacity: 0; }
}
.prop-strip-scanning {
  position: relative;
  overflow: hidden;
}
.prop-strip-scanning::after {
  content: '';
  position: absolute;
  top: 0;
  left: -35%;
  width: 25%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(13,110,253,.07), transparent);
  animation: prop-beam 3s ease-in-out infinite;
  pointer-events: none;
}
[data-bs-theme="dark"] .prop-strip-scanning::after {
  background: linear-gradient(90deg, transparent, rgba(99,155,255,.09), transparent);
}

/* Hero card pulse border while scanning */
@keyframes prop-hero-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(13,110,253,.0),
               var(--bs-box-shadow-sm, 0 .125rem .25rem rgba(0,0,0,.075)); }
  50%       { box-shadow: 0 0 0 3px rgba(13,110,253,.14),
               var(--bs-box-shadow-sm, 0 .125rem .25rem rgba(0,0,0,.075)); }
}
.prop-hero-scanning {
  animation: prop-hero-glow 2.4s ease-in-out infinite;
}

/* Radar sweep inside the hero ring */
.prop-radar-wrap {
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  overflow: hidden;
  pointer-events: none;
  opacity: 1;
  transition: opacity .6s ease;
}
.prop-radar-wrap.prop-radar-done {
  opacity: 0;
}
@keyframes prop-radar {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.prop-radar-sweep {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: conic-gradient(from 0deg, transparent 60%, rgba(13,110,253,.3) 100%);
  animation: prop-radar 2.2s linear infinite;
}

/* Row slide-in as resolver results arrive */
@keyframes prop-row-in {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}
.prop-row-enter {
  animation: prop-row-in .2s ease both;
}

/* Stat counter pop on update */
@keyframes prop-stat-pop {
  0%   { transform: scale(1); }
  45%  { transform: scale(1.45); }
  100% { transform: scale(1); }
}
.prop-stat-pop {
  display: inline-block;
  animation: prop-stat-pop .28s ease;
}

/* ── Propagation record-type selector ────────────────────────────────────── */
.prop-type-row {
  display: flex;
  flex-wrap: wrap;
  gap: .375rem;
}
.prop-type-opt {
  position: relative;
  cursor: pointer;
  user-select: none;
}
.prop-type-label {
  display: inline-flex;
  align-items: center;
  padding: .3rem .7rem;
  border-radius: 999px;
  border: 1.5px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  font-size: .78rem;
  font-weight: 700;
  font-family: var(--bs-font-monospace, monospace);
  letter-spacing: .02em;
  color: var(--bs-secondary-color);
  line-height: 1;
  transition: border-color .12s, background .12s, color .12s, box-shadow .12s;
}
.prop-type-opt:hover .prop-type-label {
  border-color: #0d6efd;
  color: #0d6efd;
  background: color-mix(in srgb, #0d6efd 6%, var(--bs-body-bg));
}
.prop-type-opt:has(.prop-type-input:checked) .prop-type-label {
  background: #0d6efd;
  border-color: #0d6efd;
  color: #fff;
  box-shadow: 0 1px 5px rgba(13,110,253,.4);
}
[data-bs-theme="dark"] .prop-type-opt:has(.prop-type-input:checked) .prop-type-label {
  box-shadow: 0 1px 8px rgba(13,110,253,.55);
}

/* ── IP Intelligence page ─────────────────────────────────────────────────── */
.ip-dnsbl-row {
  border-color: var(--bs-border-color) !important;
  transition: background .12s;
}
.ip-dnsbl-row:last-child { border-bottom: none !important; }
.ip-dnsbl-row:hover { background: var(--bs-tertiary-bg); }

.ip-dnsbl-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.ip-dnsbl-dot-clean  { background: #22c55e; }
.ip-dnsbl-dot-listed { background: #ef4444; }

[data-bs-theme="dark"] .ip-dnsbl-dot-clean  { background: #4ade80; }
[data-bs-theme="dark"] .ip-dnsbl-dot-listed { background: #f87171; }

/* ── DNIX Animated Logo ───────────────────────────────────────────────────── */
.dnix-logo {
  position: relative;
  display: inline-flex;
  align-items: center;
  user-select: none;
  z-index: 1;
  /* Clips sweep shimmer at left/right edges; negative values let glow bleed vertically */
  clip-path: inset(-2rem 0);
  vertical-align: middle;
}

/* Sweep shimmer */
.dnix-logo::before {
  content: '';
  position: absolute;
  top: -5%; left: -60%; width: 55%; height: 110%;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(59,130,246,0.10) 35%,
    rgba(59,130,246,0.22) 50%,
    rgba(59,130,246,0.10) 65%,
    transparent 100%
  );
  transform: skewX(-8deg);
  pointer-events: none;
}
.dnix-logo.dnix-sweep::before {
  animation: dnix-sweep 1.0s cubic-bezier(0.4,0,0.2,1) forwards;
}
@keyframes dnix-sweep { from { left: -60%; } to { left: 160%; } }

/* Letter base */
.dnix-logo .dl {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  display: inline-block;
  /* Fixed slot width prevents layout shift during scramble animation */
  width: 0.73em;
  text-align: center;
  overflow: hidden;
  will-change: color, text-shadow, transform;
  color: transparent;
  text-shadow: none;
  transition: color 0.2s, text-shadow 0.3s;
}
/* "I" is narrower than D/N/X — give it a tighter slot so spacing looks even */
.dnix-logo .dl:nth-child(3) {
  width: 0.50em;
}
/* Period gets a narrower fixed slot */
.dnix-logo .dnix-dot {
  width: 0.44em;
}

/* Size variants */
.dnix-logo-nav .dl { font-size: 1.875rem; }
.dnix-logo-sm  .dl { font-size: 1.375rem; }

/* Animations */
@keyframes dnix-flicker { 0% { opacity: 1; } 50% { opacity: 0.65; } }
@keyframes dnix-pop {
  0%   { transform: scale(1.07, 0.95); }
  45%  { transform: scale(0.97, 1.02); }
  72%  { transform: scale(1.01, 0.99); }
  100% { transform: scale(1, 1); }
}

/* Dark theme */
[data-bs-theme="dark"] .dnix-logo .dl.on  { color: #60a5fa; text-shadow: 0 0 8px rgba(59,130,246,.55), 0 0 22px rgba(59,130,246,.25); animation: dnix-flicker .09s step-start infinite; }
[data-bs-theme="dark"] .dnix-logo .dl.set { color: #ffffff;  text-shadow: 0 0 14px rgba(59,130,246,.55), 0 0 38px rgba(59,130,246,.25), 0 0 75px rgba(59,130,246,.08); animation: dnix-pop .35s cubic-bezier(.22,1,.36,1) forwards; }
[data-bs-theme="dark"] .dnix-logo .dl.out { color: #60a5fa; text-shadow: 0 0 6px rgba(59,130,246,.55); animation: dnix-flicker .09s step-start infinite; opacity: .7; }
[data-bs-theme="dark"] .dnix-logo .dnix-dot     { color: transparent; text-shadow: none; transition: color .3s, text-shadow .4s; }
[data-bs-theme="dark"] .dnix-logo .dnix-dot.set { color: #2563eb; text-shadow: 0 0 12px rgba(37,99,235,.7), 0 0 32px rgba(37,99,235,.35), 0 0 65px rgba(37,99,235,.15); }
[data-bs-theme="dark"] .dnix-logo .dnix-dot.out { color: rgba(37,99,235,.4); text-shadow: none; transition: color .15s; }

/* Light theme */
[data-bs-theme="light"] .dnix-logo .dl.on  { color: #3b82f6; text-shadow: 0 0 8px rgba(37,99,235,.5), 0 0 20px rgba(37,99,235,.22); animation: dnix-flicker .09s step-start infinite; }
[data-bs-theme="light"] .dnix-logo .dl.set { color: #09090f; text-shadow: 0 0 14px rgba(37,99,235,.5), 0 0 36px rgba(37,99,235,.22), 0 0 70px rgba(37,99,235,.06); animation: dnix-pop .35s cubic-bezier(.22,1,.36,1) forwards; }
[data-bs-theme="light"] .dnix-logo .dl.out { color: #3b82f6; text-shadow: 0 0 6px rgba(37,99,235,.5); animation: dnix-flicker .09s step-start infinite; opacity: .7; }
[data-bs-theme="light"] .dnix-logo .dnix-dot     { color: transparent; text-shadow: none; transition: color .3s, text-shadow .4s; }
[data-bs-theme="light"] .dnix-logo .dnix-dot.set { color: #2563eb; text-shadow: 0 0 10px rgba(37,99,235,.6), 0 0 28px rgba(37,99,235,.3), 0 0 55px rgba(37,99,235,.12); }
[data-bs-theme="light"] .dnix-logo .dnix-dot.out { color: rgba(37,99,235,.35); text-shadow: none; transition: color .15s; }