:root {
  color-scheme: light;
  font-family: ui-rounded, "SF Pro Rounded", "Trebuchet MS", Arial, sans-serif;
  --ink: #24312d;
  --muted: #66736c;
  --paper: #fffaf0;
  --panel: #ffffff;
  --line: #d9ded2;
  --leaf: #2f7d5a;
  --moss: #80a95d;
  --clay: #b7664a;
  --gold: #d99b31;
  --sky: #c7e8f2;
  --shadow: rgba(47, 55, 43, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  background: #dcefd7;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(199, 232, 242, 0.88), rgba(220, 239, 215, 0.72) 38%, rgba(255, 250, 240, 0.95)),
    radial-gradient(circle at 12% 14%, rgba(217, 155, 49, 0.22), transparent 28%),
    #dcefd7;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

a {
  color: inherit;
}

.app-shell {
  width: min(1180px, 100%);
  min-height: 100svh;
  margin: 0 auto;
  padding: max(18px, env(safe-area-inset-top)) 18px 38px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
  padding: 22px 0 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--clay);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: #1c4f3e;
  font-size: clamp(42px, 9vw, 86px);
  line-height: 0.92;
  letter-spacing: 0;
}

.intro {
  max-width: 680px;
  margin: 16px 0 0;
  color: #415149;
  font-size: clamp(18px, 2.4vw, 24px);
  line-height: 1.32;
}

.hero-badges {
  display: flex;
  max-width: 390px;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.hero-badges span,
.meta-pill,
.source-pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border: 1px solid rgba(36, 49, 45, 0.13);
  border-radius: 999px;
  color: #31473d;
  background: rgba(255, 255, 255, 0.64);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.1;
}

.hero-badges span {
  padding: 7px 10px;
}

.toolbar {
  position: sticky;
  z-index: 4;
  top: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 0 16px;
  background: linear-gradient(180deg, rgba(220, 239, 215, 0.96), rgba(220, 239, 215, 0.72));
  scrollbar-width: none;
}

.toolbar::-webkit-scrollbar {
  display: none;
}

.filter-button,
.back-button,
.museum-link {
  border: 0;
  border-radius: 8px;
  font-weight: 850;
  cursor: pointer;
}

.filter-button {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0 16px;
  color: #2f4b42;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: inset 0 0 0 1px rgba(36, 49, 45, 0.12);
}

.filter-button.is-active {
  color: #ffffff;
  background: var(--leaf);
  box-shadow: 0 7px 16px rgba(47, 125, 90, 0.24);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}

.dino-card {
  min-height: 318px;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(36, 49, 45, 0.12);
  border-radius: 8px;
  color: inherit;
  background: var(--panel);
  box-shadow: 0 14px 30px var(--shadow);
  text-align: left;
  cursor: pointer;
}

.dino-card:hover,
.dino-card:focus-visible {
  transform: translateY(-2px);
}

.dino-card:focus-visible,
.filter-button:focus-visible,
.back-button:focus-visible,
.museum-link:focus-visible {
  outline: 4px solid rgba(217, 155, 49, 0.7);
  outline-offset: 3px;
}

.card-image {
  position: relative;
  height: 168px;
  overflow: hidden;
  background: #d8dfd1;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--pos, center);
  filter: saturate(1.05) contrast(1.02);
}

.card-tag {
  position: absolute;
  left: 10px;
  bottom: 10px;
  padding: 6px 8px;
  border-radius: 999px;
  color: #fff;
  background: rgba(30, 58, 49, 0.88);
  font-size: 12px;
  font-weight: 850;
}

.card-body {
  padding: 14px;
}

.card-body h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1;
}

.pronunciation {
  margin: 6px 0 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
}

.quick-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.fact {
  min-height: 50px;
  padding: 8px;
  border-radius: 8px;
  background: #f3f0e4;
}

.fact span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  text-transform: uppercase;
}

.fact strong {
  display: block;
  margin-top: 3px;
  font-size: 14px;
  line-height: 1.15;
}

.detail-view {
  padding-top: 14px;
}

.back-button {
  min-height: 46px;
  padding: 0 18px;
  color: #ffffff;
  background: #2c5948;
  box-shadow: 0 8px 18px rgba(28, 79, 62, 0.22);
}

.detail-panel {
  margin-top: 16px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 44px var(--shadow);
}

.detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(330px, 0.94fr);
  min-height: 430px;
}

.detail-media {
  min-height: 360px;
  background: #d9dfd2;
}

.detail-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  object-position: var(--pos, center);
}

.detail-copy {
  padding: clamp(22px, 4vw, 44px);
  background:
    linear-gradient(145deg, rgba(255, 250, 240, 0.96), rgba(255, 255, 255, 0.94)),
    var(--paper);
}

.detail-copy h2 {
  margin: 0;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 0.95;
}

.meaning {
  margin: 12px 0 0;
  color: var(--clay);
  font-size: 18px;
  font-weight: 850;
}

.description {
  margin: 22px 0 0;
  font-size: 19px;
  line-height: 1.45;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.meta-pill,
.source-pill {
  padding: 8px 10px;
}

.detail-sections {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.56fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.learn-section,
.source-section {
  padding: clamp(20px, 3vw, 34px);
}

.source-section {
  background: #f4f6ee;
  border-left: 1px solid var(--line);
}

.section-title {
  margin: 0 0 14px;
  color: #24483d;
  font-size: 20px;
}

.learn-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.learn-list li {
  padding: 13px 14px;
  border-radius: 8px;
  background: #f7f1df;
  font-size: 17px;
  line-height: 1.35;
}

.museum-links {
  display: grid;
  gap: 10px;
}

.museum-link {
  display: block;
  padding: 13px 14px;
  color: #ffffff;
  background: #315f85;
  text-decoration: none;
}

.museum-link.secondary {
  background: #6d6f42;
}

.video-panel {
  margin-top: 16px;
  padding: 14px;
  border-radius: 8px;
  background: #1f3338;
  color: #ffffff;
}

.video-panel p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.35;
}

.source-note {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

@media (max-width: 840px) {
  .hero,
  .detail-hero,
  .detail-sections {
    grid-template-columns: 1fr;
  }

  .hero-badges {
    justify-content: flex-start;
  }

  .source-section {
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 560px) {
  .app-shell {
    padding-right: 12px;
    padding-left: 12px;
  }

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

  .detail-media,
  .detail-media img {
    min-height: 260px;
  }
}