/* ── Site Header ───────────────────────────────────── */
.site-header {
  padding: 14px 0;
  border-bottom: 1px solid var(--line-light);
  background: rgba(253, 250, 246, 0.86);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.02);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}
.site-header__left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  min-width: 0;
  overflow: hidden;
}
.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.04rem;
  font-weight: 760;
  color: var(--text-secondary);
  cursor: pointer;
  letter-spacing: -0.01em;
  white-space: nowrap;
  padding: 0;
  border: 0;
  background: transparent;
}
.site-header__brand:hover { opacity: 0.8; }
.site-header__brand-mark {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  box-shadow: 0 1px 2px rgba(33, 22, 12, 0.12);
  flex-shrink: 0;
}
.site-header__brand-text {
  color: var(--text);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  color: color-mix(in srgb, var(--muted) 86%, #ffffff 14%);
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.breadcrumb__sep { opacity: 0.4; }
.breadcrumb__link {
  cursor: pointer;
  transition: color var(--transition);
}
.breadcrumb__link:hover { color: var(--text); }
.breadcrumb__current { color: var(--text-secondary); font-weight: 500; }

.lang-toggle {
  min-height: 32px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 20px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--panel);
  transition: all var(--transition);
  cursor: pointer;
  letter-spacing: 0.02em;
}
.lang-toggle:hover {
  border-color: var(--text);
  color: var(--text);
}

/* ── Page Sections ────────────────────────────────── */
.page { padding: 32px 0 60px; }
.page__title { margin-bottom: 6px; }
.page__subtitle {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 24px;
  max-width: 62ch;
}

/* ── Entry Cards (Home) ──────────────────────────── */
.entry-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 18px;
}
.entry-card {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.78) 100%);
  border: 1px solid color-mix(in srgb, var(--line) 82%, #ffffff 18%);
  border-radius: var(--radius-lg);
  padding: 18px 18px 16px;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 136px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  animation: home-card-in 380ms ease forwards;
}
.entry-card:nth-child(1) { animation-delay: 20ms; }
.entry-card:nth-child(2) { animation-delay: 80ms; }
.entry-card:nth-child(3) { animation-delay: 140ms; }
.entry-card--primary {
  grid-column: 1 / -1;
  min-height: 150px;
  padding: 20px 20px 18px;
}
.entry-card--primary .entry-card__title {
  font-size: 1.12rem;
  font-weight: 780;
}
.entry-card--primary .entry-card__desc {
  font-size: 0.84rem;
  max-width: 34ch;
}
.entry-card--secondary {
  min-height: 114px;
}
.entry-card--secondary .entry-card__icon {
  width: 30px;
  height: 30px;
  font-size: 1rem;
}
.entry-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(180px 120px at 85% -20px, rgba(255,255,255,0.35), transparent 72%);
  pointer-events: none;
}
.entry-card:hover {
  border-color: #d8c7b4;
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}
.entry-card__top {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.entry-card__icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.12rem;
  background: rgba(255,255,255,0.78);
  border: 1px solid rgba(255,255,255,0.8);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.38);
}
.entry-card__title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 6px;
}
.entry-card__meta-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.entry-card__meta {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.75);
  background: rgba(255,255,255,0.7);
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 700;
  white-space: nowrap;
}
.entry-card__title {
  font-size: 1.02rem;
  font-weight: 760;
  color: var(--text);
}
.entry-card__desc-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.entry-card__arrow {
  color: color-mix(in srgb, var(--muted) 70%, #ffffff 30%);
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-left: 4px;
  transition: transform var(--transition), color var(--transition);
}
.entry-card:hover .entry-card__arrow {
  transform: translateX(2px);
  color: var(--text-secondary);
}
.entry-card__desc {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.45;
}
.entry-card__cta {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  margin-top: 10px;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.82);
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: 700;
}
.entry-card:hover .entry-card__cta {
  background: rgba(255,255,255,0.95);
  color: var(--text);
}
.entry-card__cta--pulse {
  animation: home-cta-breathe 2200ms ease-in-out 3;
}
.entry-card--secondary .entry-card__cta {
  display: none;
}
.entry-card[data-entry="systems"] {
  background:
    radial-gradient(220px 140px at 88% -24px, rgba(93, 121, 181, 0.12), transparent 68%),
    linear-gradient(180deg, rgba(247, 250, 255, 0.96) 0%, rgba(241, 246, 255, 0.85) 100%);
}
.entry-card[data-entry="scenes"] {
  background:
    radial-gradient(220px 140px at 88% -24px, rgba(222, 165, 96, 0.12), transparent 68%),
    linear-gradient(180deg, rgba(255, 251, 244, 0.96) 0%, rgba(255, 247, 237, 0.85) 100%);
}
.entry-card[data-entry="lens"] {
  background:
    radial-gradient(220px 140px at 88% -24px, rgba(99, 142, 131, 0.12), transparent 68%),
    linear-gradient(180deg, rgba(245, 252, 250, 0.96) 0%, rgba(238, 247, 244, 0.85) 100%);
}
.entry-card__deco {
  position: absolute;
  top: -10px;
  right: -10px;
  opacity: 0.06;
  pointer-events: none;
}

@media (max-width: 640px) {
  .entry-cards { grid-template-columns: 1fr; }
  .entry-card {
    min-height: 122px;
    padding: 16px 15px 14px;
  }
  .entry-card--primary {
    min-height: 142px;
    padding: 18px 16px 16px;
  }
  .entry-card--primary .entry-card__title {
    font-size: 1.08rem;
  }
  .entry-card--secondary {
    min-height: 106px;
  }
  .entry-card--secondary .entry-card__desc {
    font-size: 0.78rem;
  }
  .entry-card__meta {
    font-size: 0.64rem;
    padding: 0 7px;
  }
  .entry-card__cta {
    min-height: 26px;
    padding: 0 10px;
    font-size: 0.7rem;
  }
}

/* ── System Cards ─────────────────────────────────── */
.system-card {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--sys-primary, var(--line));
  border-radius: var(--radius);
  padding: 22px 18px;
  cursor: pointer;
  transition: all var(--transition);
}
.system-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}
.system-card.placeholder {
  opacity: 0.55;
  cursor: default;
}
.system-card.placeholder:hover {
  box-shadow: none;
  transform: none;
}
.system-card__name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--sys-primary, var(--text));
  margin-bottom: 4px;
}
.system-card__subtitle {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 12px;
}
.system-card__meta {
  font-size: 0.75rem;
  color: var(--muted);
}
.system-card__badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--sys-accent-soft, rgba(0,0,0,0.05));
  color: var(--sys-primary, var(--muted));
}
.system-card__deco {
  position: absolute;
  bottom: -8px;
  right: -8px;
  opacity: 0.08;
  pointer-events: none;
  color: var(--sys-primary, var(--muted));
}

/* ── Scene Cards ──────────────────────────────────── */
.scene-card {
  background: var(--scene-gradient, var(--panel));
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius);
  padding: 24px 20px;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.scene-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}
.scene-card__icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
}
.scene-card__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.scene-card__prompt {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* ── System Detail Header ─────────────────────────── */
.system-hero {
  background: var(--sys-bg-gradient, var(--bg));
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.65);
  box-shadow: var(--shadow-sm);
}
.system-hero__title {
  font-size: 1.38rem;
  color: var(--sys-primary, var(--text));
  margin-bottom: 4px;
}
.system-hero__subtitle {
  color: var(--muted);
  font-size: 0.95rem;
}
.system-hero__deco {
  position: absolute;
  top: 50%;
  right: 24px;
  transform: translateY(-50%);
  opacity: 0.1;
  pointer-events: none;
  color: var(--sys-primary, var(--muted));
}

/* ── Scene Detail Header ──────────────────────────── */
.scene-hero {
  background: var(--scene-gradient, var(--bg));
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.65);
  box-shadow: var(--shadow-sm);
}
.scene-hero__icon { font-size: 2rem; margin-bottom: 8px; }
.scene-hero__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.scene-hero__prompt {
  color: var(--text-secondary);
  font-style: italic;
  font-size: 0.95rem;
}

/* ── Scene Group (concepts grouped by system) ─────── */
.scene-group {
  margin-bottom: 28px;
}
.scene-group__title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sys-primary, var(--muted));
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.scene-group__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sys-accent, var(--muted));
}

/* ── Concept Card ─────────────────────────────────── */
.concept-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.concept-card:hover {
  box-shadow: var(--shadow-sm);
  border-color: #e0d0bd;
}

/* System accent stripe */
.concept-card[data-system] {
  border-left: 3px solid var(--sys-accent, var(--line));
}

/* Layer 1: always visible summary */
.concept-card__head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background var(--transition);
  line-height: 1.4;
}
.concept-card__head:hover { background: rgba(0,0,0,0.015); }

.concept-card__title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 0;
}
.concept-card__title { font-weight: 600; }
.concept-card__summary {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--muted);
  line-height: 1.5;
}

.concept-card__chevron {
  flex-shrink: 0;
  margin-left: 8px;
  color: var(--muted);
  font-size: 0.8rem;
  transition: transform var(--transition);
}
.concept-card__head[aria-expanded="true"] .concept-card__chevron {
  transform: rotate(180deg);
}

/* Layer 2: explanation */
.concept-card__body {
  border-top: 1px solid var(--line-light);
  padding: 16px;
}
.concept-card__body h4 {
  margin: 12px 0 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sys-accent, var(--text-secondary));
}
.concept-card__body h4:first-child { margin-top: 0; }
.concept-card__body ul { padding-left: 1.1em; }
.concept-card__body li {
  margin: 4px 0;
  font-size: 0.88rem;
  line-height: 1.6;
}
.concept-card__body p {
  font-size: 0.88rem;
  line-height: 1.74;
}

.concept-card__example,
.concept-card__practice {
  background: var(--sys-accent-soft, rgba(0,0,0,0.03));
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-top: 4px;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Layer 3: deep reading */
.concept-card__deep-toggle {
  width: 100%;
  padding: 9px 16px;
  text-align: left;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--line-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition);
}
.concept-card__deep-toggle:hover {
  color: var(--text-secondary);
  background: rgba(0,0,0,0.015);
}
.concept-card__deep-toggle[aria-expanded="true"] .concept-card__deep-chevron {
  transform: rotate(180deg);
}
.concept-card__deep-chevron {
  font-size: 0.7rem;
  transition: transform var(--transition);
}

.concept-card__deep {
  border-top: 1px solid var(--line-light);
  padding: 16px;
  background: rgba(0,0,0,0.015);
}
.concept-card__deep p {
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 12px;
}
.concept-card__sources {
  font-size: 0.8rem;
  color: var(--muted);
}
.concept-card__sources li {
  font-size: 0.8rem;
  color: var(--muted);
  font-style: italic;
}

/* ── Related Concepts ─────────────────────────────── */
.related-links {
  margin-top: 4px;
  padding: 10px 16px;
  border-top: 1px solid var(--line-light);
}
.related-links__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.related-links__title {
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.related-links__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
}
.related-links__item {
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.related-links__item:hover {
  border-color: var(--text-secondary);
  color: var(--text);
}
.related-links__more {
  padding: 3px 8px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  font-size: 0.75rem;
  color: var(--muted);
}
.concept-card__detail-link {
  color: var(--muted);
  font-size: 0.72rem;
  text-decoration: underline;
  text-underline-offset: 2px;
  margin-bottom: 6px;
}
.concept-card__detail-link:hover {
  color: var(--text-secondary);
}

/* ── System Badge ─────────────────────────────────── */
.system-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--sys-accent-soft, rgba(0,0,0,0.05));
  color: var(--sys-primary, var(--muted));
  white-space: nowrap;
  flex-shrink: 0;
}
.system-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sys-accent, currentColor);
}

/* ── Toolbar ──────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

/* ── Lens Map ─────────────────────────────────────── */
.lens-filters {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}
.lens-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.lens-chip {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.8rem;
  line-height: 1.2;
  transition: all var(--transition);
}
.lens-chip:hover {
  border-color: var(--text);
  color: var(--text);
}
.lens-chip.is-active {
  border-color: var(--text);
  color: var(--text);
  background: rgba(0,0,0,0.03);
}
.lens-section {
  margin-bottom: 16px;
}
.lens-section__title {
  font-size: 0.82rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 8px;
}

/* ── Concept Search ───────────────────────────────── */
.search-controls {
  display: grid;
  gap: 10px;
  margin-bottom: 10px;
}
.search-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  background: var(--panel);
  color: var(--text);
  font-size: 0.92rem;
}
.search-input:focus {
  outline: none;
  border-color: var(--text-secondary);
}
.search-sort {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.search-sort__label {
  font-size: 0.8rem;
  color: var(--muted);
}
.search-sort__select {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-secondary);
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 0.8rem;
}
.search-clear {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.74rem;
  line-height: 1.2;
}
.search-clear:hover {
  border-color: var(--text-secondary);
  color: var(--text-secondary);
}
.search-result-meta {
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 12px;
}
.search-result {
  margin-bottom: 12px;
}
.search-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 8px 2px 0;
}
.search-actions__right {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.search-like-count {
  font-size: 0.8rem;
  color: var(--muted);
}
.search-fav {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.78rem;
  transition: all var(--transition);
}
.search-fav:hover {
  border-color: var(--text-secondary);
  color: var(--text);
}
.search-fav.is-active {
  border-color: var(--sys-accent, var(--text-secondary));
  color: var(--sys-primary, var(--text));
  background: var(--sys-accent-soft, rgba(0,0,0,0.03));
}
.search-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.search-tag {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 0.72rem;
}
.search-tag:hover {
  color: var(--text-secondary);
  border-color: var(--text-secondary);
}

/* ── Concept Detail ───────────────────────────────── */
.concept-detail-hero {
  background: var(--sys-bg-gradient, var(--bg));
  border-radius: var(--radius-lg);
  padding: 20px 20px;
  margin-bottom: 12px;
  border: 1px solid rgba(255,255,255,0.65);
  box-shadow: var(--shadow-sm);
}
.concept-detail-hero__title {
  font-size: 1.35rem;
  color: var(--sys-primary, var(--text));
  margin-bottom: 4px;
}
.concept-detail-hero__subtitle {
  color: var(--muted);
  font-size: 0.9rem;
}
.concept-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.concept-detail-actions .btn-ghost {
  background: rgba(255,255,255,0.85);
}
.concept-detail__sharelink {
  color: var(--muted);
  font-size: 0.78rem;
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 8px 2px;
  transition: color var(--transition), transform var(--transition);
}
.concept-detail__sharelink:hover {
  color: var(--text-secondary);
}
.concept-detail__sharelink.is-copied {
  color: var(--sys-primary, var(--text-secondary));
  transform: translateY(-1px);
}
.concept-detail__qr {
  margin-top: 10px;
  width: fit-content;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  padding: 8px;
  box-shadow: var(--shadow-sm);
}
.concept-detail__qr img {
  display: block;
  border-radius: 6px;
}
.concept-detail-nav {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}
.concept-detail-nav .btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ── Placeholder / Coming Soon ────────────────────── */
.coming-soon {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 600;
  background: rgba(0,0,0,0.04);
  color: var(--muted);
}

/* ── Home Hero ────────────────────────────────────── */
.home-hero {
  text-align: left;
  padding: 14px 2px 12px;
  margin-bottom: 4px;
}
.home-hero__kicker {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.72);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.02em;
  margin-bottom: 10px;
}
.home-hero__title {
  font-size: 1.85rem;
  font-weight: 840;
  letter-spacing: -0.02em;
  margin-bottom: 2px;
}

@keyframes home-card-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes home-cta-breathe {
  0%, 100% {
    transform: translateY(0);
    box-shadow: 0 0 0 rgba(0,0,0,0);
  }
  45% {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(47, 36, 27, 0.08);
  }
}

@media (prefers-reduced-motion: reduce) {
  .entry-card,
  .entry-card__cta--pulse {
    animation: none !important;
  }
}

@media (max-width: 640px) {
  .site-header { padding: 14px 0; }
  .site-header .container { align-items: flex-start; }
  .site-header__left {
    gap: 4px;
    flex-direction: column;
    align-items: flex-start;
  }
  .site-header__brand {
    gap: 7px;
    font-size: 0.98rem;
  }
  .site-header__brand-mark {
    width: 22px;
    height: 22px;
  }
  .breadcrumb {
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .system-card,
  .scene-card,
  .entry-card,
  .concept-card {
    margin-left: 2px;
    margin-right: 2px;
  }
  .home-hero {
    padding: 10px 0 10px;
    margin-bottom: 2px;
  }
  .home-hero__kicker {
    margin-bottom: 8px;
    font-size: 0.7rem;
  }
  .home-hero__title { font-size: 1.5rem; }
  .system-hero, .scene-hero { padding: 24px 20px; }
  .concept-card__head { padding: 14px 14px; }
  .concept-card__body { padding: 14px; }
  .search-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  .search-actions__right {
    width: 100%;
    justify-content: space-between;
  }
}

/* ── Scene icon SVGs ──────────────────────────────── */
.scene-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 8px;
}