:root {
  color-scheme: light;
  --bg: #f6f3ee;
  --surface: #ffffff;
  --surface-muted: #ebe5db;
  --text: #20201d;
  --muted: #69655f;
  --line: #d8d0c3;
  --accent: #1f766f;
  --accent-dark: #14534f;
  --accent-soft: #d8ece9;
  --shadow: 0 16px 40px rgba(45, 38, 28, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

button,
a {
  font: inherit;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 2rem + 1vw, 3rem);
  line-height: 1.05;
}

h2 {
  margin-bottom: 12px;
  font-size: 1.45rem;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.description,
.summary,
.muted {
  color: var(--muted);
}

.description {
  max-width: 720px;
  margin-bottom: 0;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
}

.model-card {
  display: flex;
  min-height: 360px;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  overflow: hidden;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 28px rgba(45, 38, 28, 0.08);
  color: inherit;
  text-align: left;
  transition:
    border-color 160ms ease,
    transform 160ms ease,
    box-shadow 160ms ease;
}

.model-card:hover,
.model-card:focus-within {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  outline: none;
  transform: translateY(-2px);
}

.preview-host {
  position: relative;
  display: grid;
  width: 100%;
  height: 170px;
  place-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #eee7dc;
}

.preview-host canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.preview-fallback {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.model-card-body,
.model-card-footer {
  padding: 0 20px;
}

.model-card-body {
  flex: 1;
}

.model-card-footer {
  padding-bottom: 20px;
}

.card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent-dark);
  font-weight: 750;
  text-decoration: none;
}

.card-link:hover,
.card-link:focus-visible {
  background: var(--accent-soft);
  outline: none;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-muted);
  color: #49443d;
  font-size: 0.78rem;
  font-weight: 650;
}

.date {
  color: var(--muted);
  font-size: 0.9rem;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: 22px;
  align-items: start;
}

.viewer-panel,
.info-panel,
.message-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 28px rgba(45, 38, 28, 0.08);
}

.viewer-panel {
  overflow: hidden;
}

.viewer-host {
  width: 100%;
  height: min(70vh, 680px);
  min-height: 430px;
  background: #e9e2d7;
}

.viewer-host canvas {
  display: block;
}

.info-panel,
.message-panel {
  padding: 20px;
}

.meta-list {
  display: grid;
  gap: 10px;
  margin: 20px 0;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
}

.meta-row dt {
  color: var(--muted);
  font-weight: 700;
}

.meta-row dd {
  margin: 0;
  text-align: right;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  font-weight: 750;
  text-decoration: none;
}

.button:hover,
.button:focus-visible {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  outline: none;
}

.button.secondary {
  background: var(--surface);
  color: var(--accent-dark);
}

.button.secondary:hover,
.button.secondary:focus-visible {
  background: var(--accent-soft);
}

.error-title {
  color: #8d2f2f;
}

@media (max-width: 800px) {
  .app-shell {
    width: min(100% - 24px, 1180px);
    padding-top: 22px;
  }

  .topbar,
  .detail-layout {
    display: block;
  }

  .viewer-panel {
    margin-bottom: 16px;
  }

  .viewer-host {
    height: 58vh;
    min-height: 340px;
  }
}

.interaction-help {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer a {
  color: var(--accent-dark);
}