:root {
  --loader-bg: #f6f7f9;
  --loader-surface: rgba(255, 255, 255, 0.82);
  --loader-line: rgba(22, 27, 36, 0.13);
  --loader-text: #171a21;
  --loader-muted: #747b88;
  --loader-accent: #8a54ff;
}

html[data-theme='dark'] {
  --loader-bg: #0e1117;
  --loader-surface: rgba(25, 30, 40, 0.86);
  --loader-line: rgba(255, 255, 255, 0.12);
  --loader-text: #f4f6fa;
  --loader-muted: #9aa3b3;
  --loader-accent: #b26cff;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  background: var(--loader-bg);
}

.seo-fallback {
  min-height: 100svh;
  color: var(--loader-text);
  background-color: var(--loader-bg);
  background-image:
    linear-gradient(var(--loader-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--loader-line) 1px, transparent 1px);
  background-size: 48px 48px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.seo-fallback__stage {
  display: grid;
  box-sizing: border-box;
  min-height: 100svh;
  padding: 20px clamp(16px, 4vw, 52px) 42px;
  grid-template-rows: auto 1fr;
  animation: seo-loader-enter 360ms cubic-bezier(0.2, 0.75, 0.25, 1) both;
}

.seo-fallback__bar {
  display: flex;
  width: min(100%, 1180px);
  min-height: 54px;
  box-sizing: border-box;
  margin: 0 auto;
  padding: 9px 12px;
  align-items: center;
  gap: 22px;
  background: var(--loader-surface);
  border: 1px solid var(--loader-line);
  border-radius: 8px;
  box-shadow: 0 14px 42px rgba(5, 9, 16, 0.08);
  backdrop-filter: blur(18px);
}

.seo-fallback__brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
}

.seo-fallback__brand img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.seo-fallback__bar-line {
  width: min(42%, 280px);
  height: 8px;
  margin-left: auto;
  overflow: hidden;
  background: color-mix(in srgb, var(--loader-muted) 16%, transparent);
  border-radius: 4px;
}

.seo-fallback__bar-line::after {
  display: block;
  width: 34%;
  height: 100%;
  content: '';
  background: color-mix(in srgb, var(--loader-accent) 46%, transparent);
  border-radius: inherit;
  animation: seo-loader-scan 1.35s ease-in-out infinite;
}

.seo-fallback__focus {
  display: flex;
  width: min(100%, 680px);
  margin: auto;
  align-items: center;
  flex-direction: column;
  text-align: center;
}

.seo-fallback__eyebrow {
  color: var(--loader-accent);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.seo-fallback__mark {
  display: grid;
  width: 132px;
  height: 132px;
  margin: 24px 0 20px;
  place-items: center;
  background: var(--loader-surface);
  border: 1px solid color-mix(in srgb, var(--loader-accent) 38%, var(--loader-line));
  border-radius: 8px;
  box-shadow: 0 18px 58px color-mix(in srgb, var(--loader-accent) 20%, transparent);
  animation: seo-loader-float 1.8s ease-in-out infinite;
}

.seo-fallback__mark img {
  width: 104px;
  height: 104px;
  object-fit: contain;
}

.seo-fallback__focus strong {
  max-width: 100%;
  overflow-wrap: anywhere;
  font-size: clamp(2rem, 6vw, 4.6rem);
  line-height: 1.04;
}

.seo-fallback__status {
  display: inline-flex;
  margin-top: 24px;
  align-items: center;
  gap: 9px;
  color: var(--loader-muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.seo-fallback__status i {
  width: 14px;
  height: 14px;
  box-sizing: border-box;
  border: 2px solid color-mix(in srgb, var(--loader-muted) 28%, transparent);
  border-top-color: var(--loader-accent);
  border-radius: 50%;
  animation: seo-loader-spin 760ms linear infinite;
}

.seo-fallback__crawl {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes seo-loader-enter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

@keyframes seo-loader-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-7px);
  }
}

@keyframes seo-loader-scan {
  0% {
    transform: translateX(-110%);
  }
  100% {
    transform: translateX(300%);
  }
}

@keyframes seo-loader-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 640px) {
  .seo-fallback__stage {
    padding: 14px 12px 30px;
  }

  .seo-fallback__bar {
    min-height: 50px;
  }

  .seo-fallback__mark {
    width: 116px;
    height: 116px;
  }

  .seo-fallback__mark img {
    width: 90px;
    height: 90px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .seo-fallback__stage,
  .seo-fallback__mark,
  .seo-fallback__bar-line::after,
  .seo-fallback__status i {
    animation: none;
  }
}