/* 下の句かるた（hokkaidodo/shimonoku-karuta）専用 */
:root {
  --paper: #f7f2e7;
  --paper-2: #efe6d3;
  --ink: #2a221b;
  --muted: #7a6c5d;
  --line: #ddd0b8;
  --wood: #c99a5b;
  --wood-dark: #8a5a2b;
  --accent: #b5452c;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: 'Zen Kaku Gothic New', 'Hiragino Sans', sans-serif; line-height: 1.9; }
a { color: var(--accent); text-underline-offset: 3px; }

.sk { max-width: 760px; margin: 0 auto; padding: 0 16px 48px; }
.sk h1, .sk h2, .sk h3 { font-family: 'Shippori Mincho B1', serif; line-height: 1.45; }
.sk h1 { margin: 8px 0 16px; font-size: clamp(24px, 5vw, 32px); }
.sk h2 { margin: 48px 0 12px; padding-bottom: 6px; border-bottom: 2px solid var(--wood-dark); font-size: 22px; }
.sk h3 { margin: 24px 0 4px; font-size: 17px; }
.sk p, .sk ul { margin: 0 0 14px; }
.sk ul { padding-left: 1.3em; }
.sk strong { background: linear-gradient(transparent 62%, rgba(201, 154, 91, .35) 0); }
.lead { font-size: 17px; }

/* ヘッダー */
.sk-header { padding: 14px 0 6px; border-bottom: 1px solid var(--line); }
.sk-site { color: var(--muted); font-size: 13px; text-decoration: none; }
.sk-header ul { display: flex; gap: 6px 18px; flex-wrap: wrap; margin: 6px 0 0; padding: 0; list-style: none; font-size: 14px; font-weight: 700; }
.sk-header a { text-decoration: none; }

.breadcrumb { display: flex; flex-wrap: wrap; margin: 12px 0 0; padding: 0; list-style: none; font-size: 12px; color: var(--muted); }
.breadcrumb li + li::before { content: '›'; margin: 0 8px; }
.breadcrumb a { color: var(--muted); text-decoration: none; }

/* 板かるたの図 */
.sk-fig { margin: 24px 0 8px; padding: 20px 12px 14px; background: #3a2c22; border-radius: 12px; }
.fudas { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.itafuda { width: 96px; height: auto; filter: drop-shadow(0 4px 6px rgba(0, 0, 0, .4)); }
.itafuda:nth-child(1) { transform: rotate(-5deg); }
.itafuda:nth-child(3) { transform: rotate(4deg); }
.itafuda .wood { fill: var(--wood); stroke: var(--wood-dark); stroke-width: 3; }
.itafuda .grain { fill: none; stroke: var(--wood-dark); stroke-width: 1.2; opacity: .35; }
.itafuda text { font-family: 'Shippori Mincho B1', serif; font-weight: 700; font-size: 22px; text-anchor: middle; fill: #1f160f; }
.sk-fig figcaption { margin-top: 12px; color: #f2e8d6; font-size: 12px; text-align: center; }

/* 表 */
.table-wrap { overflow-x: auto; margin-bottom: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { border-bottom: 2px solid var(--wood-dark); }
tbody th { white-space: nowrap; color: var(--muted); font-weight: 700; }

/* KARUTA52 への案内 */
.sk-link { padding: 20px; background: var(--paper-2); border-left: 4px solid var(--accent); border-radius: 4px; }
.sk-link p:last-child { margin-bottom: 0; }
.sk-btn { display: inline-block; padding: 10px 22px; background: var(--ink); color: #fffdf8; border-radius: 999px; font-weight: 700; text-decoration: none; }
.sk-btn:hover { background: var(--accent); }
.sk-sub { color: var(--muted); font-size: 14px; }

.share { display: flex; gap: 10px; flex-wrap: wrap; margin: 36px 0 20px; }
.share a { padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 13px; text-decoration: none; color: var(--ink); }

.sk-footer { margin-top: 40px; text-align: center; }