:root {
  --gv-paper: #f7f3eb;
  --gv-ink: #171717;
  --gv-muted: #666057;
  --gv-leaf: #2f6b50;
  --gv-clay: #9b4f3d;
  --gv-sky: #dbe9ee;
  --gv-line: rgba(23, 23, 23, 0.14);
  color: var(--gv-ink);
  background: var(--gv-paper);
  font-family:
    ui-serif,
    Georgia,
    Cambria,
    "Times New Roman",
    serif;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
}

img,
iframe,
canvas {
  display: block;
  max-width: 100%;
}

.gv-shell {
  min-height: 100vh;
}

.gv-loading,
.gv-runtime-note {
  margin: 0 auto;
  max-width: 68rem;
  padding: 2rem 1rem;
  color: var(--gv-muted);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.gv-article {
  min-height: 100vh;
}

.gv-surface {
  display: grid;
  gap: clamp(1.5rem, 4vw, 4rem);
  margin: 0 auto;
  max-width: 76rem;
  padding: clamp(1rem, 3vw, 2rem);
}

.gv-hero {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  min-height: 100vh;
  padding: clamp(1rem, 4vw, 3rem) 0;
  place-content: center;
  position: relative;
}

.gv-hero-image {
  aspect-ratio: 16 / 10;
  background: var(--gv-sky);
  border: 1px solid var(--gv-line);
  border-radius: 8px;
  box-shadow: 0 1.5rem 4rem rgba(23, 23, 23, 0.12);
  height: auto;
  object-fit: cover;
  width: min(100%, 72rem);
}

.gv-caption {
  color: var(--gv-muted);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(0.92rem, 1.6vw, 1.05rem);
  line-height: 1.55;
  margin: 0;
  max-width: 42rem;
}

.gv-photo-sequence {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(min(18rem, 100%), 1fr));
  margin: 0 auto;
  width: 100%;
}

.gv-sequence-image {
  aspect-ratio: 4 / 3;
  background: var(--gv-sky);
  border: 1px solid var(--gv-line);
  border-radius: 8px;
  object-fit: cover;
  width: 100%;
}

.gv-effect-canvas {
  inset: 0;
  opacity: 0.18;
  pointer-events: none;
  position: absolute;
}

.gv-effect-marker {
  display: none;
}

.gv-diagnostics {
  border-top: 1px solid var(--gv-line);
  color: var(--gv-clay);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 2rem 0 0;
  padding: 1rem 0 0 1.25rem;
}

.gv-fallback {
  margin: 0 auto;
  max-width: 76rem;
  padding: clamp(1rem, 4vw, 3rem);
}

.gv-fallback h1 {
  font-size: clamp(2rem, 6vw, 5.5rem);
  font-weight: 500;
  line-height: 0.96;
  margin: 0 0 1rem;
}

.gv-static-fallback-frame {
  background: white;
  border: 1px solid var(--gv-line);
  border-radius: 8px;
  min-height: 70vh;
  width: 100%;
}

@media (max-width: 640px) {
  .gv-hero {
    min-height: 86vh;
  }

  .gv-surface {
    padding: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .gv-effect-canvas {
    display: none;
  }
}

.gv-reduced-motion .gv-effect-canvas {
  display: none;
}