:root {
  color-scheme: light dark;
  --bg: #f4f2ee;
  --fg: #1c1917;
  --muted: #57534e;
  --border: #d6d3d1;
  --card: #fffcf8;
  --accent: #1e3a5f;
  --focus: #0f766e;
  --space: 1rem;
  --max: 40rem;
  font-family: system-ui, "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1917;
    --fg: #f5f5f4;
    --muted: #a8a29e;
    --border: #44403c;
    --card: #292524;
    --accent: #93c5fd;
    --focus: #5eead4;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 1;
  padding: 0.5rem 0.75rem;
  background: var(--card);
  color: var(--fg);
}

.skip-link:focus {
  top: 0.75rem;
}

.site-header,
main {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  padding-block: 2.5rem 1.5rem;
}

h1 {
  margin: 0;
  font-size: clamp(1.6rem, 5vw, 2rem);
  font-weight: 650;
  line-height: 1.2;
}

.site-header p {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.filters {
  display: grid;
  gap: 1.25rem;
}

.search-field {
  display: grid;
  gap: 0.4rem;
}

label,
legend {
  font-size: 0.9rem;
  font-weight: 600;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.kind-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-top: 0.5rem;
}

.kind-options label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 2.75rem;
  font-weight: 500;
}

input[type="search"] {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  background: var(--card);
  color: var(--fg);
  font: inherit;
}

input[type="radio"] {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.status {
  min-height: 1.5em;
  margin: 1.25rem 0 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.group {
  margin: 0 0 2rem;
}

.group h2 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  font-weight: 650;
}

.item-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.item {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--card);
}

.item h3 {
  margin: 0;
  font-size: 1.05rem;
}

.item h3 a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

.item p {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.7rem 0 0;
  padding: 0;
  list-style: none;
}

.tags li {
  padding: 0.15rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--muted);
}

.empty-state {
  margin: 0;
  padding: 1.25rem 1rem;
  border: 1px dashed var(--border);
  border-radius: 0.5rem;
  color: var(--muted);
}

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