:root {
  color-scheme: light;
  --bg: #f5f2ea;
  --surface: #fffdf7;
  --surface-strong: #fbf7ec;
  --ink: #171614;
  --muted: #625e55;
  --line: #d8d0c1;
  --line-strong: #c3b8a6;
  --accent: #16664f;
  --accent-soft: #e1eee8;
  --shadow: 0 14px 36px rgba(49, 42, 31, 0.08);
  --sticky-offset: 51px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(18px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
  background: rgba(245, 242, 234, 0.94);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.brand {
  text-decoration: none;
  font-size: 15px;
  font-weight: 790;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border: 2px solid var(--accent);
  background:
    linear-gradient(90deg, transparent 47%, var(--accent) 47%, var(--accent) 53%, transparent 53%),
    linear-gradient(180deg, transparent 47%, var(--accent) 47%, var(--accent) 53%, transparent 53%),
    var(--accent-soft);
}

main {
  max-width: 1500px;
  margin: 0 auto;
  padding: 18px clamp(18px, 4vw, 44px) 60px;
}

.card-actions,
.result-line {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.primary-action,
.secondary-action,
.ghost-action,
.copy-action,
.copy-links-action,
.source-link {
  min-height: 30px;
  border-radius: 7px;
  border: 1px solid transparent;
  padding: 6px 9px;
  font-size: 11px;
  font-weight: 780;
  text-decoration: none;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease, color 150ms ease;
}

.primary-action,
.copy-action {
  background: var(--accent);
  color: #fffdf8;
}

.secondary-action,
.ghost-action,
.copy-links-action,
.source-link {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--ink);
}

.primary-action:hover,
.secondary-action:hover,
.ghost-action:hover,
.copy-action:hover,
.copy-links-action:hover,
.source-link:hover {
  transform: translateY(-1px);
}

.controls {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(210px, 280px) auto;
  align-items: end;
  gap: 12px;
  margin-bottom: 12px;
}

.search-field,
.select-field {
  display: grid;
  gap: 6px;
}

.search-field span,
.select-field span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

input,
select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  padding: 9px 11px;
  outline: none;
}

input:focus,
select:focus,
button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.category-strip {
  margin-bottom: 18px;
}

#category-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  overflow: visible;
  padding: 0;
}

.category-button {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  padding: 7px 11px;
  white-space: nowrap;
}

.category-button:hover,
.category-button.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--ink);
}

.category-button span:first-child {
  font-size: 12px;
  font-weight: 780;
}

.dataset-area {
  min-width: 0;
}

.result-line {
  justify-content: space-between;
  min-height: 18px;
  margin-bottom: 10px;
}

.result-line p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.group {
  margin-bottom: 34px;
}

.group-header {
  position: sticky;
  top: var(--sticky-offset);
  z-index: 12;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: end;
  margin: 0 -2px 10px;
  border-bottom: 1px solid rgba(216, 208, 193, 0.78);
  background: rgba(245, 242, 234, 0.92);
  padding: 9px 2px 8px;
  backdrop-filter: blur(12px);
}

.group-header h2 {
  margin: 0;
  font-size: 25px;
  line-height: 1.08;
  letter-spacing: 0;
}

.group-header p {
  margin: 7px 0 0;
  max-width: 790px;
  color: var(--muted);
  line-height: 1.5;
}

.dataset-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.dataset-card {
  display: grid;
  align-content: space-between;
  min-height: 300px;
  scroll-margin-top: 112px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 12px;
}

.card-kicker {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 6px;
}

.dataset-number {
  display: inline-flex;
  justify-content: flex-end;
  min-width: 28px;
  padding-right: 7px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font-size: 10px;
  font-weight: 850;
  line-height: 1;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums lining-nums;
}

.card-category {
  margin: 0;
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.25;
  text-transform: uppercase;
}

.card-heading h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.16;
  letter-spacing: 0;
}

.description {
  display: -webkit-box;
  margin: 7px 0 9px;
  overflow: hidden;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.38;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.metadata {
  display: grid;
  gap: 5px;
  margin: 0;
}

.metadata dt {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 820;
  text-transform: uppercase;
}

.metadata dd {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: 11px;
  line-height: 1.28;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
}

details {
  margin-top: 7px;
  border-top: 1px solid var(--line);
  padding-top: 6px;
}

summary {
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

details p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.42;
}

.story-ideas {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-top: 7px;
}

.story-ideas span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-strong);
  padding: 3px 6px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
}

.card-actions {
  align-self: end;
  justify-content: flex-start;
  margin-top: 11px;
}

.empty-state {
  padding: 44px 0;
  color: var(--muted);
  font-size: 18px;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 40;
  max-width: min(360px, calc(100vw - 40px));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  color: var(--ink);
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.prompt-dialog {
  width: min(780px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow);
  padding: 0;
}

.prompt-dialog::backdrop {
  background: rgba(22, 20, 18, 0.36);
}

.prompt-dialog form {
  display: grid;
  gap: 14px;
  padding: 20px;
}

.dialog-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.dialog-heading h2 {
  margin: 0;
  font-size: 24px;
}

.prompt-dialog p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.prompt-dialog textarea {
  width: 100%;
  min-height: 320px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 12px;
  font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

@media (max-width: 1120px) {
  .dataset-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  main {
    padding: 14px 18px 46px;
  }

  .controls,
  .group-header {
    grid-template-columns: 1fr;
  }

  .dataset-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .group-header h2 {
    font-size: 25px;
  }

  .dataset-card {
    min-height: 0;
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}