/* うごく図解の見た目。crofty のテーマの CSS のあとに読む（layouts/_default/baseof.html）。
   色は明るい表示と暗い表示の両方で決める。動く図の色は --ugoku-* にまとめる。 */

:root {
  --accent: #1d5c63;
  --measure: 44rem;
  --font-body: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  --font-chrome: var(--font-body);

  --ugoku-surface: #ffffff;
  --ugoku-ink: var(--ink);
  --ugoku-muted: var(--muted);
  --ugoku-line: #d6d1c6;
  --ugoku-accent: var(--accent);
  --ugoku-1: #2563a8; /* 青 */
  --ugoku-2: #b8580b; /* 橙 */
  --ugoku-3: #2f7d34; /* 緑 */
  --ugoku-4: #7a4fa8; /* 紫 */
  --ugoku-soft-1: #e3edf8;
  --ugoku-soft-2: #fbeadc;
  --ugoku-soft-3: #e2f1e3;
  --ugoku-soft-4: #efe7f8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #7cc4c9;
    --ugoku-surface: #1f1d17;
    --ugoku-line: #403b31;
    --ugoku-1: #7fb5ec;
    --ugoku-2: #f0a35e;
    --ugoku-3: #86c98a;
    --ugoku-4: #bf9fe3;
    --ugoku-soft-1: #1c2b3b;
    --ugoku-soft-2: #3a2816;
    --ugoku-soft-3: #1d3320;
    --ugoku-soft-4: #2e2440;
  }
}

body { font-size: 1.0625rem; line-height: 1.85; }
p, li { overflow-wrap: anywhere; }

a { text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent); }

.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  padding: 0.4rem 0.8rem;
  background: var(--bg);
  border: 2px solid var(--accent);
  z-index: 10;
}

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ---- 枠 ---- */

.site-title {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
}
.site-mark { color: var(--accent); flex: none; }
.site-header { align-items: center; padding-top: 1.75rem; }
.site-header nav a { font-size: 0.95rem; }

.site-footer { border-top: 1px solid var(--line); padding-top: 1.5rem; padding-bottom: 2.5rem; font-size: 0.9rem; color: var(--muted); }
.site-footer-nav { display: flex; flex-wrap: wrap; gap: 0.4rem 1.25rem; margin-bottom: 0.6rem; }
.site-footer-nav a { color: var(--muted); text-decoration: none; }
.site-footer-nav a:hover { color: var(--ink); }
.site-footer-meta { margin: 0; }

/* ---- トップ ---- */

.hero { padding: 1.5rem 0 1rem; }
.hero-title { font-size: clamp(2rem, 7vw, 2.75rem); margin: 0 0 0.25rem; letter-spacing: 0.02em; }
.hero-subtitle { font-size: 1.15rem; color: var(--accent); font-weight: 600; margin: 0 0 1rem; }
.hero-lead { color: var(--muted); margin: 0; }

.home-section { margin-top: 2.5rem; }
.home-section h2 { margin-top: 0; }
.more { margin-top: 0.75rem; }
.empty { color: var(--muted); }

/* ---- 分野の入口 ---- */

.field-grid {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 13rem), 1fr));
  gap: 0.75rem;
}
.field-grid a {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  height: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  text-decoration: none;
  background: var(--ugoku-surface);
}
.field-grid a:hover { border-color: var(--accent); }
.field-grid-name { font-weight: 700; color: var(--ink); }
.field-grid-examples { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }
.field-grid-count { font-size: 0.8rem; color: var(--accent); margin-top: auto; }

/* ---- 記事の一覧 ---- */

.article-list { list-style: none; padding: 0; margin: 0; }
.article-item { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.article-item-title { font-weight: 700; font-size: 1.1rem; text-decoration: none; }
.article-item-summary { margin: 0.25rem 0 0.4rem; color: var(--muted); font-size: 0.95rem; }
.article-item-meta { margin: 0; font-size: 0.8rem; color: var(--muted); display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }

.field-chip {
  display: inline-block;
  font-size: 0.78rem;
  line-height: 1.5;
  padding: 0.05rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.page-kicker { margin: 0; font-size: 0.85rem; }
.page-kicker a { color: var(--muted); }
.page-intro { color: var(--muted); }

/* ---- 記事 ---- */

.article-fields { margin: 0 0 0.5rem; display: flex; gap: 0.4rem; }
.article-lead { color: var(--muted); font-size: 1.05rem; }
.article-simplified, .article-sources {
  margin-top: 2.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--line);
}
.article-sources ol { font-size: 0.9rem; }
.article-made-by { margin-top: 2rem; font-size: 0.85rem; color: var(--muted); }

/* ---- 動く図 ---- */

.ugoku {
  text-align: left;
  margin: 1.75rem 0;
  padding: 1rem;
  border: 1px solid var(--ugoku-line);
  border-radius: 12px;
  background: var(--ugoku-surface);
}
.ugoku-stage { display: flex; justify-content: center; }
.ugoku-svg { display: block; width: 100%; height: auto; overflow: visible; font-family: var(--font-body); }
.ugoku-svg text { fill: var(--ugoku-ink); }
.ugoku-fallback { color: var(--muted); font-size: 0.9rem; margin: 0; }

.ugoku-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: end;
  margin-top: 0.75rem;
  font-size: 0.9rem;
}
.ugoku-controls > .ugoku-legend,
.ugoku-controls > .ugoku-readout { flex: 1 0 100%; margin: 0; }
.ugoku-control { display: flex; flex-direction: column; gap: 0.25rem; min-width: 0; }
.ugoku-slider {
  flex: 1 1 14rem;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  column-gap: 0.5rem;
}
.ugoku-slider input { grid-column: 1 / -1; width: 100%; margin: 0; min-height: 44px; accent-color: var(--ugoku-accent); }
.ugoku-value { font-variant-numeric: tabular-nums; font-weight: 600; }
.ugoku-label { color: var(--muted); }

.ugoku button {
  font: inherit;
  min-height: 44px;
  padding: 0.35rem 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--ugoku-line);
  background: var(--bg);
  color: var(--ink);
  cursor: pointer;
  touch-action: manipulation;
}
.ugoku button:hover { border-color: var(--ugoku-accent); }
.ugoku button[aria-pressed="true"] {
  background: var(--ugoku-accent);
  border-color: var(--ugoku-accent);
  color: var(--bg);
}
.ugoku-choice { display: flex; flex-wrap: wrap; gap: 0.35rem; }

.ugoku-readout {
  margin: 0.75rem 0 0;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  background: color-mix(in srgb, var(--ugoku-accent) 9%, transparent);
  font-size: 0.95rem;
  line-height: 1.7;
}

.ugoku-legend {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.ugoku-legend li { display: inline-flex; align-items: center; gap: 0.35rem; }

.ugoku-caption {
  margin-top: 0.9rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--ugoku-line);
  font-size: 0.92rem;
  color: var(--muted);
}
.ugoku-caption p:last-child { margin-bottom: 0; }

@media (max-width: 480px) {
  .site-header, .content, .site-footer { padding-inline: 1rem; }
  .ugoku { padding: 0.75rem; margin-inline: -0.25rem; }
}
.site-footer-meta { text-align: left; }
.post-header { text-align: left; }