/* sbcimages.org — shared styles (light + dark) */

:root {
  --bg: #faf9f7;
  --panel: #ffffff;
  --text: #1b1e23;
  --muted: #66707a;
  --line: #e5e2dc;
  --accent: #0c6b58;
  --accent-ink: #ffffff;
  --accent-soft: rgba(12, 107, 88, 0.08);
  --code-bg: #14171c;
  --code-ink: #d8dde4;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --panel: #151a20;
    --text: #e7eaee;
    --muted: #97a1ac;
    --line: #262d36;
    --accent: #4fd1b5;
    --accent-ink: #08231c;
    --accent-soft: rgba(79, 209, 181, 0.10);
    --code-bg: #0b0e12;
    --code-ink: #d8dde4;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", sans-serif;
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

/* ---------- header / footer ---------- */

header.site {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.8rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand img { width: 24px; height: 24px; }

nav { margin-left: auto; display: flex; gap: 1.1rem; font-size: 0.95rem; }

main {
  max-width: 56rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

footer.site {
  margin-top: 4.5rem;
  padding: 1.75rem 1.5rem 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}
footer.site .wrap { max-width: 56rem; margin: 0 auto; }
footer.site p { margin: 0.2rem 0; }

/* ---------- hero ---------- */

.hero { padding: 4.5rem 0 3.25rem; }

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 2.9rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.lede {
  max-width: 44rem;
  margin: 0;
  font-size: 1.13rem;
  color: var(--muted);
}
.lede strong { color: var(--text); font-weight: 600; }

.actions {
  margin-top: 2.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  border-radius: 0.55rem;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.1); }
.btn.ghost { border-color: var(--line); color: var(--text); background: var(--panel); }
.btn.ghost:hover { border-color: var(--accent); }

/* ---------- sections ---------- */

section { margin: 3.5rem 0; }

h2 {
  margin: 0 0 1rem;
  font-size: 1.45rem;
  letter-spacing: -0.015em;
}

h2 + p { max-width: 46rem; }

ol.steps {
  max-width: 46rem;
  padding-left: 1.4rem;
  margin: 1.25rem 0;
}
ol.steps li { margin: 0.9rem 0; }
ol.steps h3 { display: inline; font-size: 1rem; }
ol.steps p { margin: 0.4rem 0; color: var(--muted); }

code {
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
}

p code, li code, td code {
  background: var(--accent-soft);
  padding: 0.12em 0.4em;
  border-radius: 0.3em;
}

pre {
  margin: 0.75rem 0 1.25rem;
  padding: 1rem 1.25rem;
  border-radius: 0.6rem;
  background: var(--code-bg);
  color: var(--code-ink);
  overflow-x: auto;
  font-size: 0.84rem;
  line-height: 1.55;
  border: 1px solid var(--line);
}

/* ---------- target cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 1rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  padding: 1rem 1.15rem;
}
.card h3 { margin: 0 0 0.25rem; font-size: 1.02rem; line-height: 1.35; }
.card-meta { margin: 0; color: var(--muted); font-size: 0.85rem; }
.card-links { margin: 0.65rem 0 0; font-size: 0.88rem; }

/* ---------- browse / tables ---------- */

.dirblock { margin: 2.4rem 0; }
.dirblock h3 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
  font-weight: 600;
}
.dirblock h3 code {
  background: var(--accent-soft);
  padding: 0.2em 0.55em;
  border-radius: 0.4em;
  font-size: 0.9rem;
}
.dirblock + .dirblock { margin-top: 3rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th {
  text-align: left;
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

td {
  padding: 0.62rem 0.8rem;
  border-bottom: 1px solid var(--line);
  vertical-align: baseline;
}

tbody tr:hover td { background: var(--accent-soft); }

td.filename { word-break: break-all; }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.muted { color: var(--muted); }

.empty {
  border: 1px dashed var(--line);
  border-radius: 0.65rem;
  padding: 1.1rem 1.3rem;
  color: var(--muted);
  margin: 0 0 2rem;
}

.notice {
  margin: 1.5rem 0 0;
  padding: 0.9rem 1.1rem;
  border-left: 3px solid var(--accent);
  background: var(--panel);
  border-radius: 0 0.5rem 0.5rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ---------- misc ---------- */

::selection { background: var(--accent); color: var(--accent-ink); }

@media (max-width: 640px) {
  .hero { padding-top: 3rem; }
  header.site { padding: 0.7rem 1rem; }
  nav { gap: 0.8rem; }
  th:nth-child(3), td:nth-child(3) { display: none; } /* hide Type column */
}