:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1f2328;
  --muted: #57606a;
  --card: #f6f8fa;
  --accent: #0969da;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --fg: #e6edf3;
    --muted: #9aa4af;
    --card: #161b22;
    --accent: #2f81f7;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
}

.topbar,
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

h1,
h2 {
  margin: 0 0 1rem;
}

input,
button,
a.link-button {
  border: 1px solid color-mix(in oklab, var(--muted) 30%, transparent);
  background: var(--card);
  color: var(--fg);
  border-radius: 0.6rem;
  padding: 0.65rem 0.8rem;
  font: inherit;
}

input {
  width: 100%;
}

button,
a.link-button {
  cursor: pointer;
}

a.link-button {
  display: inline-block;
  text-decoration: none;
}

#search {
  margin-bottom: 0.6rem;
}

.count {
  margin: 0.25rem 0 1rem;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.85rem;
}

.card {
  border: 1px solid color-mix(in oklab, var(--muted) 30%, transparent);
  border-radius: 0.75rem;
  overflow: hidden;
  background: var(--card);
}

.card button {
  width: 100%;
  border: 0;
  border-radius: 0;
  padding: 0;
  background: none;
}

.card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block;
}

.meta {
  padding: 0.6rem;
}

.meta h3 {
  margin: 0 0 0.2rem;
  font-size: 0.95rem;
}

.meta p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.viewer {
  border: none;
  border-radius: 0.8rem;
  padding: 0.8rem;
  width: min(95vw, 900px);
  background: var(--card);
  color: var(--fg);
}

.viewer::backdrop {
  background: rgba(0, 0, 0, 0.6);
}

.viewer img {
  max-width: 100%;
  max-height: 70vh;
  display: block;
  margin: 0 auto 0.8rem;
}

.viewer-actions {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
}

.viewer-close-wrap {
  display: flex;
  justify-content: flex-end;
}

.close-btn {
  border: none;
  background: none;
  font-size: 1.4rem;
  line-height: 1;
  padding: 0;
}

.panel {
  display: grid;
  gap: 0.55rem;
  background: var(--card);
  border: 1px solid color-mix(in oklab, var(--muted) 30%, transparent);
  border-radius: 0.8rem;
  padding: 0.9rem;
  margin-bottom: 1rem;
}

.hidden {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}