:root {
  --ba-ink: #12263a;
  --ba-ink-soft: #3d5368;
  --ba-paper: #f3f7fb;
  --ba-line: rgba(18, 38, 58, 0.1);
  --ba-teal: #0f8f8a;
  --ba-teal-deep: #0a6c68;
  --ba-coral: #e36a4a;
  --ba-sky: #5ba4d9;
  --ba-mint: #7bc9b5;
  --ba-shadow: 0 18px 50px rgba(18, 38, 58, 0.12);
  --ba-radius: 1.25rem;
  --ba-font-display: "Outfit", sans-serif;
  --ba-font-body: "Source Sans 3", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body.ba-body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--ba-font-body);
  color: var(--ba-ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(91, 164, 217, 0.35), transparent 55%),
    radial-gradient(900px 500px at 95% 5%, rgba(123, 201, 181, 0.4), transparent 50%),
    radial-gradient(800px 500px at 50% 110%, rgba(227, 106, 74, 0.18), transparent 55%),
    linear-gradient(165deg, #eef5fb 0%, #f7fafc 45%, #e8f2f0 100%);
  position: relative;
  overflow-x: hidden;
}

.ba-ambient {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(18, 38, 58, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 38, 58, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  z-index: 0;
  animation: ba-grid-drift 28s linear infinite;
}

@keyframes ba-grid-drift {
  from { transform: translateY(0); }
  to { transform: translateY(48px); }
}

.ba-header,
.ba-main,
.ba-footer {
  position: relative;
  z-index: 1;
}

.ba-header {
  padding: 1.5rem 0 0.5rem;
}

.ba-header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.ba-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ba-ink);
}

.ba-brand-mark {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 0.7rem;
  object-fit: cover;
  display: block;
  box-shadow: 0 8px 20px rgba(15, 143, 138, 0.35);
  animation: ba-mark-pulse 4.5s ease-in-out infinite;
}

@keyframes ba-mark-pulse {
  0%, 100% { transform: scale(1); filter: saturate(1); }
  50% { transform: scale(1.04); filter: saturate(1.15); }
}

.ba-brand-text {
  font-family: var(--ba-font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 2.4vw, 1.85rem);
  letter-spacing: -0.03em;
  line-height: 1;
}

.ba-brand-text span {
  color: var(--ba-teal-deep);
  font-weight: 500;
}

.ba-tagline {
  font-size: 0.95rem;
  color: var(--ba-ink-soft);
}

.ba-main {
  padding: 1.5rem 0 4rem;
}

.ba-hero {
  max-width: 40rem;
  margin-bottom: 1.75rem;
  animation: ba-rise 0.7s ease-out both;
}

@keyframes ba-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.ba-hero-title {
  font-family: var(--ba-font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3rem);
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin: 0 0 0.85rem;
  background: linear-gradient(120deg, var(--ba-ink) 20%, var(--ba-teal-deep) 75%, var(--ba-sky));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ba-hero-copy {
  color: var(--ba-ink-soft);
  font-size: 1.08rem;
  line-height: 1.55;
  margin: 0 0 1.35rem;
  max-width: 36rem;
}

.ba-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.ba-btn-primary {
  --bs-btn-color: #f5fffe;
  --bs-btn-bg: var(--ba-teal-deep);
  --bs-btn-border-color: var(--ba-teal-deep);
  --bs-btn-hover-color: #ffffff;
  --bs-btn-hover-bg: #085552;
  --bs-btn-hover-border-color: #085552;
  --bs-btn-active-color: #ffffff;
  --bs-btn-active-bg: #074845;
  --bs-btn-active-border-color: #074845;
  --bs-btn-disabled-color: #f2fbfa;
  --bs-btn-disabled-bg: #3f6b68;
  --bs-btn-disabled-border-color: #3f6b68;
  border-radius: 999px;
  padding: 0.65rem 1.35rem;
  font-weight: 600;
  box-shadow: 0 10px 24px rgba(10, 108, 104, 0.32);
}

.ba-btn-ghost {
  border-radius: 999px;
  padding: 0.65rem 1.25rem;
  font-weight: 600;
  color: var(--ba-ink);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--ba-line);
  backdrop-filter: blur(8px);
}

.ba-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(15, 143, 138, 0.35);
  color: var(--ba-teal-deep);
}

.ba-share-panel {
  margin-top: 1.15rem;
  max-width: 36rem;
  padding: 1rem 1.1rem;
  border-radius: var(--ba-radius);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--ba-line);
  backdrop-filter: blur(10px);
  animation: ba-rise 0.45s ease-out both;
}

.ba-share-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ba-ink-soft);
  margin-bottom: 0.45rem;
}

.ba-share-row {
  display: flex;
  gap: 0.55rem;
}

.ba-share-input {
  border-radius: 0.75rem;
  border-color: var(--ba-line);
  background: #fff;
  font-size: 0.92rem;
}

.ba-status {
  margin: 0 0 1.25rem;
  color: var(--ba-ink-soft);
  font-size: 0.95rem;
  min-height: 1.4em;
}

.ba-alert {
  border-radius: 1rem;
  padding: 0.95rem 1.1rem;
  border: 1px solid var(--ba-line);
  background: rgba(255, 255, 255, 0.75);
}

.ba-alert-warn {
  border-color: rgba(227, 106, 74, 0.35);
  background: rgba(227, 106, 74, 0.1);
  color: #8a3a28;
}

.ba-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.ba-section {
  grid-column: span 12;
  border-radius: var(--ba-radius);
  padding: 1.2rem 1.25rem 1.05rem;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.62));
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--ba-shadow);
  backdrop-filter: blur(12px);
  opacity: 0;
  transform: translateY(12px);
  animation: ba-section-in 0.55s ease forwards;
}

.ba-section:nth-child(1) { animation-delay: 0.05s; }
.ba-section:nth-child(2) { animation-delay: 0.12s; }
.ba-section:nth-child(3) { animation-delay: 0.19s; }
.ba-section:nth-child(4) { animation-delay: 0.26s; }
.ba-section:nth-child(5) { animation-delay: 0.33s; }
.ba-section:nth-child(6) { animation-delay: 0.4s; }

@keyframes ba-section-in {
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 768px) {
  .ba-section.ba-span-6 { grid-column: span 6; }
  .ba-section.ba-span-4 { grid-column: span 4; }
  .ba-section.ba-span-8 { grid-column: span 8; }
}

.ba-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.ba-section-title {
  font-family: var(--ba-font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}

.ba-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  background: rgba(15, 143, 138, 0.12);
  color: var(--ba-teal-deep);
}

.ba-pill.is-bad {
  background: rgba(227, 106, 74, 0.14);
  color: #a0432c;
}

.ba-pill.is-warn {
  background: rgba(217, 164, 65, 0.18);
  color: #8a6418;
}

.ba-row {
  display: grid;
  grid-template-columns: minmax(7rem, 38%) 1fr;
  gap: 0.35rem 0.85rem;
  padding: 0.48rem 0;
  border-top: 1px solid var(--ba-line);
  font-size: 0.95rem;
}

.ba-row:first-of-type {
  border-top: 0;
}

.ba-key {
  color: var(--ba-ink-soft);
  font-weight: 500;
}

.ba-val {
  color: var(--ba-ink);
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.ba-val.is-muted {
  color: #7a8b9c;
  font-style: italic;
}

.ba-footer {
  padding: 1.5rem 0 2.5rem;
  color: var(--ba-ink-soft);
  font-size: 0.88rem;
}

.ba-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  margin-bottom: 0.85rem;
}

.ba-footer-nav a {
  color: var(--ba-teal-deep);
  font-weight: 600;
  text-decoration: none;
}

.ba-footer-nav a:hover {
  text-decoration: underline;
}

.ba-footer p {
  margin: 0;
  max-width: 40rem;
}

.ba-prose {
  max-width: 40rem;
}

.ba-prose-hero {
  margin-bottom: 2rem;
}

.ba-prose-body {
  color: var(--ba-ink);
  font-size: 1.05rem;
  line-height: 1.65;
}

.ba-prose-body h2 {
  font-family: var(--ba-font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 2rem 0 0.75rem;
  color: var(--ba-ink);
}

.ba-prose-body p,
.ba-prose-body ol,
.ba-prose-body ul {
  margin: 0 0 1rem;
  color: var(--ba-ink-soft);
}

.ba-prose-body li {
  margin-bottom: 0.4rem;
}

.ba-prose-body a {
  color: var(--ba-teal-deep);
  font-weight: 600;
}

.ba-prose-body code {
  font-size: 0.92em;
  padding: 0.1em 0.35em;
  border-radius: 0.35rem;
  background: rgba(15, 143, 138, 0.1);
  color: var(--ba-ink);
}

.ba-related {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ba-line);
}

.ba-related-title {
  font-family: var(--ba-font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.65rem;
}

.ba-related-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.ba-related-list a {
  color: var(--ba-teal-deep);
  font-weight: 600;
  text-decoration: none;
}

.ba-related-list a:hover {
  text-decoration: underline;
}

.ba-prose-cta {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ba-line);
}

.ba-prose-cta p {
  color: var(--ba-ink-soft);
  margin: 0 0 1rem;
  max-width: 32rem;
}

.ba-seo-block {
  max-width: 40rem;
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--ba-line);
  animation: ba-rise 0.7s ease-out both;
}

.ba-seo-heading {
  font-family: var(--ba-font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: var(--ba-ink);
}

.ba-seo-lead {
  color: var(--ba-ink-soft);
  font-size: 1.02rem;
  line-height: 1.6;
  margin: 0 0 1rem;
}

.ba-seo-list {
  margin: 0 0 1.1rem;
  padding-left: 1.2rem;
  color: var(--ba-ink-soft);
  line-height: 1.55;
}

.ba-seo-list li {
  margin-bottom: 0.45rem;
}

.ba-seo-list strong {
  color: var(--ba-ink);
}

.ba-seo-block a {
  color: var(--ba-teal-deep);
  font-weight: 600;
}

.ba-faq-q {
  font-family: var(--ba-font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.35rem 0 0.4rem;
  color: var(--ba-ink);
}

.ba-faq-q:first-child {
  margin-top: 0.35rem;
}

.ba-faq-a {
  color: var(--ba-ink-soft);
  margin: 0;
  line-height: 1.55;
}

.ba-not-found {
  padding-top: 4rem;
  padding-bottom: 2rem;
}

.ba-share-note {
  margin: 0.65rem 0 0;
  font-size: 0.85rem;
  color: var(--ba-ink-soft);
}

.ba-issues {
  max-width: 40rem;
  margin: 0 0 1.25rem;
}

.ba-issues-inner {
  border-radius: var(--ba-radius);
  padding: 1rem 1.15rem;
  border: 1px solid rgba(227, 106, 74, 0.28);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  box-shadow: var(--ba-shadow);
  animation: ba-rise 0.55s ease-out both;
}

.ba-issues-title {
  font-family: var(--ba-font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.55rem;
  color: var(--ba-ink);
}

.ba-issues-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.ba-issues-list li {
  position: relative;
  padding-left: 0.95rem;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--ba-ink-soft);
}

.ba-issues-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: #d9a441;
}

.ba-issues-list li.is-bad {
  color: #8a3a28;
}

.ba-issues-list li.is-bad::before {
  background: var(--ba-coral);
}

.ba-issues-list li.is-warn {
  color: #6e5214;
}

/* Ad-block bait element — keep visually hidden */
.adsbox,
.ad-banner,
.adsbygoogle {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

@media (max-width: 575.98px) {
  .container {
    --bs-gutter-x: 2rem;
    padding-left: max(1rem, env(safe-area-inset-left, 0px));
    padding-right: max(1rem, env(safe-area-inset-right, 0px));
  }

  .ba-share-row {
    flex-direction: column;
  }

  .ba-row {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ba-ambient,
  .ba-brand-mark,
  .ba-hero,
  .ba-section,
  .ba-share-panel {
    animation: none !important;
  }
}