:root {
  --bg: #f5f2ea;
  --card: #fff;
  --ink: #26332b;
  --accent: #2f6f4f;
  --warn: #b4231f;
  --line: #ddd6c8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Hiragino Sans", "Noto Sans JP", sans-serif;
}
header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.8rem 1rem;
  background: var(--accent);
  color: #fff;
}
header h1 { font-size: 1.1rem; margin: 0; flex: 1; }
header a { color: #fff; }
main {
  max-width: 640px;
  margin: 0 auto;
  padding: 0.8rem;
  display: grid;
  gap: 0.8rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem;
}
.card h2 { font-size: 1rem; margin: 0 0 0.6rem; color: var(--accent); }
label { display: block; margin: 0.4rem 0; }
input, select, button {
  font: inherit;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 8px;
}
input[type="number"] { width: 8.5rem; }
button { background: var(--accent); color: #fff; border: none; cursor: pointer; }
button[value="cancel"] { background: #888; }
button[value="delete"] { background: var(--warn); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.6rem; }
table { width: 100%; border-collapse: collapse; }
th, td {
  padding: 0.35rem 0.4rem;
  border-bottom: 1px solid var(--line);
  text-align: right;
  font-variant-numeric: tabular-nums;
}
th:first-child, td:first-child { text-align: left; }
#hanchan-list li { padding: 0.4rem 0; border-bottom: 1px solid var(--line); cursor: pointer; }
#loan-list li { padding: 0.3rem 0; }
#loan-list button { background: #888; padding: 0.2rem 0.5rem; }
.ok { color: var(--accent); }
.warn { color: var(--warn); font-weight: bold; }
dialog { border: 1px solid var(--line); border-radius: 12px; max-width: 90vw; }
dialog::backdrop { background: rgb(0 0 0 / 0.4); }
.seat-row { display: flex; gap: 0.5rem; margin: 0.4rem 0; }
.player-name { display: block; margin: 0.3rem 0; }
.note { font-size: 0.8rem; color: #777; }
#history { padding-left: 1.2rem; }
#history .summary { color: #777; font-size: 0.85rem; }
#fatal { text-align: center; margin-top: 3rem; }