:root {
  --ink: #1c1b18;
  --muted: #737067;
  --line: #e6e1d7;
  --paper: #fbfaf7;
  --panel: #ffffff;
  --accent: #8b6f3e;
  --accent-dark: #5d4825;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app-nav {
  background: #151513;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.navbar-brand {
  letter-spacing: .04rem;
  text-transform: uppercase;
  font-size: 1rem;
}

.app-shell {
  max-width: 1480px;
  padding: 1rem;
}

.top-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  align-items: stretch;
  margin: 1rem 0 1.5rem;
}

.top-grid h1, .page-head h1, .detail-hero h1 {
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  margin: 0;
}

.eyebrow, .brand {
  text-transform: uppercase;
  letter-spacing: .08rem;
  color: var(--accent-dark);
  font-size: .78rem;
  font-weight: 700;
}

.metric, .option-card, .candidate, .auth-panel, .watch-card, .empty-state, .list-row, .catalog-row {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.metric {
  padding: 1rem;
}

.metric span {
  color: var(--muted);
  display: block;
}

.metric strong {
  font-size: 1.4rem;
}

.add-cta {
  min-height: 56px;
  display: grid;
  place-items: center;
}

.btn-primary {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.btn-primary:hover, .btn-primary:focus {
  background: #423219;
  border-color: #423219;
}

.toolbar {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 1rem;
}

.filters {
  flex: 1 1 260px;
}

.collection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.collection-grid.compact {
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
}

.watch-card {
  color: inherit;
  display: block;
  overflow: hidden;
  text-decoration: none;
}

.watch-card:hover {
  box-shadow: 0 14px 34px rgba(0,0,0,.08);
  transform: translateY(-1px);
}

.watch-photo {
  aspect-ratio: 4 / 3;
  background: #e9e4da;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.watch-photo img, .hero-photo img, .photo-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.watch-body {
  padding: 1rem;
}

.watch-body h2, .candidate h2 {
  font-size: 1.05rem;
  margin: .25rem 0;
}

.reference {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: #4f4b43;
}

.spec-line, .muted {
  color: var(--muted);
}

.page-head {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  margin: 1rem 0 1.5rem;
}

.option-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.option-card {
  color: inherit;
  min-height: 150px;
  padding: 1.2rem;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.option-card span {
  color: var(--muted);
}

.option-card.primary {
  border-color: var(--accent);
}

.option-card.disabled {
  opacity: .55;
  pointer-events: none;
}

.auth-panel {
  max-width: 430px;
  margin: 8vh auto;
  padding: 1.5rem;
}

.stack-form, .edit-form, .inline-form, .quick-unit, .upload-box {
  display: grid;
  gap: .85rem;
}

.form-grid {
  display: grid;
  gap: .85rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-bottom: 1rem;
}

.edit-form {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
}

.check-row, .checks {
  display: flex;
  gap: .8rem;
  align-items: center;
}

.reference-search {
  display: flex;
  gap: .75rem;
  flex: 1 1 420px;
}

.suggestions {
  width: 100%;
}

.suggestion-item {
  border-bottom: 1px solid var(--line);
  padding: .6rem .2rem;
}

.candidate-list {
  display: grid;
  gap: 1rem;
}

.candidate {
  padding: 1rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.catalog-filters {
  display: grid;
  gap: .75rem;
  grid-template-columns: 1fr;
  margin-bottom: 1rem;
}

.catalog-list {
  display: grid;
  gap: .75rem;
}

.catalog-row {
  display: grid;
  gap: 1rem;
  padding: 1rem;
  align-items: start;
}

.catalog-row h2 {
  font-size: 1.05rem;
  margin: .2rem 0;
}

.catalog-add summary {
  list-style: none;
  width: max-content;
}

.catalog-add summary::-webkit-details-marker {
  display: none;
}

.pagination-bar {
  display: flex;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  margin: 1.5rem 0;
}

.detail-hero {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  align-items: end;
  margin: 1rem 0;
}

.hero-photo {
  min-height: 260px;
  aspect-ratio: 16 / 10;
  background: #e9e4da;
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.detail-tabs {
  overflow-x: auto;
  flex-wrap: nowrap;
}

.detail-tabs .nav-link {
  color: var(--ink);
  white-space: nowrap;
}

.detail-content {
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 8px 8px;
  padding: 1rem;
}

.spec-grid {
  display: grid;
  gap: .75rem;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

.spec-grid div {
  border-bottom: 1px solid var(--line);
  padding-bottom: .6rem;
}

.spec-grid span {
  color: var(--muted);
  display: block;
  font-size: .88rem;
}

.photo-grid {
  display: grid;
  gap: .75rem;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  margin-top: 1rem;
}

.photo-grid img {
  aspect-ratio: 1;
  border-radius: 8px;
}

.list-row {
  padding: .85rem;
  margin-top: .75rem;
}

.list-row span {
  color: var(--muted);
  display: block;
}

.empty-state {
  padding: 2rem;
  text-align: center;
}

@media (min-width: 760px) {
  .app-shell {
    padding: 1.5rem 2rem;
  }
  .top-grid {
    grid-template-columns: 1.5fr .7fr .7fr auto;
  }
  .candidate {
    grid-template-columns: 1fr 360px;
  }
  .catalog-filters {
    grid-template-columns: minmax(260px, 1fr) 220px 220px auto;
  }
  .catalog-row {
    grid-template-columns: 1fr 310px;
  }
  .detail-hero {
    grid-template-columns: minmax(360px, 52vw) 1fr;
  }
}

@media (max-width: 575px) {
  .reference-search {
    display: grid;
  }
  .nav-search {
    margin-top: .75rem;
  }
  .app-shell {
    padding-bottom: calc(1rem + env(safe-area-inset-bottom));
  }
}