:root {
  --bg: #ffffff;
  --fg: #16181d;
  --muted: #6b7280;
  --line: #e5e7eb;
  --link: #1d4ed8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101216;
    --fg: #e8eaed;
    --muted: #9aa2ae;
    --line: #262a31;
    --link: #7ba7ff;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  max-width: 46rem;
  padding: 2rem 1rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Noto Sans JP", sans-serif;
}

h1 { margin: 0 0 .25rem; font-size: 1.5rem; }

nav { display: flex; gap: 1rem; margin: .5rem 0; }

nav a {
  color: var(--muted);
  font-size: .9375rem;
  text-decoration: none;
}

nav a[aria-current="page"] { color: var(--fg); font-weight: 600; }

#meta { margin: 0 0 1.5rem; color: var(--muted); font-size: .875rem; }

#search {
  width: 100%;
  padding: .6rem .75rem;
  margin-bottom: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: inherit;
  font: inherit;
}

#filters {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1.25rem;
}

#filters fieldset {
  flex: 1 1 14rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .9rem;
  margin: 0;
  padding: .6rem .75rem .75rem;
  border: 1px solid var(--line);
  border-radius: 8px;
}

#filters legend {
  padding: 0 .25rem;
  color: var(--muted);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .875rem;
  cursor: pointer;
}

.filter-option input { margin: 0; }

#jobs, #companies { list-style: none; margin: 0; padding: 0; }

.job {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .85rem 0;
  border-bottom: 1px solid var(--line);
}

.job > div {
  display: flex;
  flex-direction: column;
  gap: .15rem;
}

#companies {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: .75rem;
}

.company-card {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .85rem;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.company-name {
  display: block;
  color: var(--link);
  font-weight: 600;
  text-decoration: none;
}

.company-name:hover { text-decoration: underline; }

.logo {
  flex: none;
  width: var(--logo-size, 40px);
  height: var(--logo-size, 40px);
  border-radius: 8px;
  object-fit: contain;
  background: var(--line);
}

.logo-fallback {
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: calc(var(--logo-size, 40px) * .45);
  font-weight: 600;
}

.job a { color: var(--link); font-weight: 600; text-decoration: none; }
.job a:hover { text-decoration: underline; }

.company { font-size: .9375rem; }

.details { color: var(--muted); font-size: .8125rem; }

.empty { padding: 2rem 0; color: var(--muted); }