/* GEOLiNK · page styles · /design-guides/
   Scope: every selector is page-prefixed (dg-). No global class names. */

/* 1 · Hero — centered statement on the optical stage */
.dg-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-strong);
  background:
    radial-gradient(860px 520px at 50% 72%, rgba(var(--color-cyan-rgb), 0.12), transparent 66%),
    var(--gradient-lab);
}

.dg-hero-inner {
  padding-block: clamp(46px, 6vw, 76px) clamp(36px, 5vw, 56px);
  text-align: center;
}

.dg-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-4);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  letter-spacing: var(--tracking-label);
  line-height: 1.4;
  text-transform: uppercase;
}

.dg-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.65;
}

.dg-hero-title {
  max-width: 16ch;
  margin-inline: auto;
  font-size: clamp(40px, 5.4vw, 68px);
}

.dg-hero-lead {
  max-width: 56ch;
  margin: var(--space-5) auto 0;
  color: var(--text-secondary);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.62;
}

.dg-hero-actions {
  justify-content: center;
  margin-top: var(--space-6);
}

.dg-stage {
  min-height: clamp(300px, 38vw, 460px);
  margin-top: var(--space-6);
}

.dg-stage img {
  width: min(520px, 74vw);
}

.dg-hero-cap {
  margin: var(--space-3) auto 0;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

/* 2 · Guide cards */
.dg-section-head {
  max-width: 62ch;
  margin-bottom: var(--space-7);
}

.dg-section-head h2 {
  max-width: 24ch;
}

.dg-note {
  margin-top: var(--space-4);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  line-height: 1.6;
}

.dg-note--full {
  grid-column: 1 / -1;
}

.dg-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.8vw, 34px);
}

.dg-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  border: 1px solid var(--line);
  background: var(--color-lab-raised);
  box-shadow: var(--shadow-raised);
  transition: transform var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard);
}

.dg-card:hover {
  border-color: var(--accent-strong);
  transform: translateY(-3px);
}

.dg-card-media {
  position: relative;
  aspect-ratio: 1 / 1;
  margin-bottom: var(--space-4);
  overflow: hidden;
  background: var(--color-white);
}

.dg-card-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.dg-card-media--scene img {
  object-fit: cover;
}

.dg-card-question {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-medium);
  line-height: 1.3;
}

.dg-card-copy {
  margin-top: var(--space-2);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.dg-card-link {
  margin-top: auto;
  padding-top: var(--space-3);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-transform: uppercase;
}

.dg-card-cap {
  margin-top: var(--space-2);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
}

/* 3 · Decision map */
.dg-map-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(28px, 4.5vw, 64px);
  align-items: center;
}

.dg-map-list {
  margin-top: var(--space-5);
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.dg-map-list li {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.dg-map-list li b {
  color: var(--ink);
  font-weight: var(--weight-medium);
}

.dg-map-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-ui);
  color: var(--accent-ink);
  background: var(--color-lab-raised);
}

.dg-map-figure {
  margin: 0;
  padding: clamp(16px, 2.4vw, 28px);
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--color-lab-raised);
}

.dg-map-figure svg {
  display: block;
  width: 100%;
  min-width: 460px;
  height: auto;
}

/* 4 · Guide-to-model matrix */
.dg-matrix-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--color-lab-raised);
}

.dg-matrix-table {
  width: 100%;
  min-width: 800px;
  border-collapse: collapse;
  font-size: var(--text-sm);
  line-height: 1.5;
}

.dg-matrix-table caption {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--line);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-align: left;
}

.dg-matrix-table th,
.dg-matrix-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  vertical-align: top;
}

.dg-matrix-table thead th {
  background: var(--color-ice);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: var(--weight-medium);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.dg-matrix-table tbody th {
  color: var(--ink);
  font-weight: var(--weight-medium);
}

.dg-matrix-table tbody td {
  color: var(--text-secondary);
}

.dg-matrix-table tbody tr:last-child th,
.dg-matrix-table tbody tr:last-child td {
  border-bottom: 0;
}

/* 5 · Model shelf */
.dg-shelf-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--space-3);
}

.dg-model {
  margin: 0;
}

.dg-model-frame {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--color-white);
}

.dg-model-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.dg-model figcaption {
  margin-top: var(--space-2);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.03em;
  line-height: 1.5;
}

/* 6 · Board detail */
.dg-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2.6vw, 30px);
}

.dg-shot {
  margin: 0;
}

.dg-shot-frame {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--color-white);
}

.dg-shot-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.dg-shot figcaption {
  margin-top: var(--space-2);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.03em;
  line-height: 1.5;
}

/* 7 · FAQ */
.dg-faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.dg-faq-item {
  padding-top: var(--space-4);
  border-top: 2px solid var(--accent);
}

.dg-faq-item h3 {
  margin-bottom: var(--space-3);
}

.dg-faq-item p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.65;
}

/* 8 · CTA */
.dg-cta {
  border-top: 1px solid var(--line-strong);
  background: linear-gradient(180deg, var(--color-ice-deep), var(--color-lab-raised));
}

.dg-cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  gap: clamp(28px, 4.5vw, 64px);
  align-items: center;
}

.dg-cta-copy p {
  margin-top: var(--space-4);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.65;
}

.dg-cta-actions {
  margin-top: var(--space-5);
}

.dg-cta-links {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
}

.dg-cta-links a {
  color: var(--accent-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.dg-cta-figure {
  margin: 0;
}

.dg-cta-frame {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lift);
}

.dg-cta-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dg-cta-figure figcaption {
  margin-top: var(--space-2);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.5;
}

/* 9 · Responsive */
@media (max-width: 1080px) {
  .dg-shelf-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 880px) {
  .dg-card-grid,
  .dg-map-grid,
  .dg-cta-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .dg-detail-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .dg-shelf-grid,
  .dg-detail-grid,
  .dg-faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dg-map-figure svg {
    min-width: 380px;
  }
}