:root {
  --felt: #2E6E4E;
  --felt-deep: #1E4A34;
  --tile: #FAF8F1;
  --paper: #F3F1E8;
  --ink: #26302B;
  --ink-soft: #5C665F;
  --aka: #C0392B;
  --line: #D9D6C8;
  --card: #FFFFFF;
  --man: #A1452F;
  --pin: #2F5FA1;
  --sou: #2E7D4F;
}
@media (prefers-color-scheme: dark) {
  :root {
    --felt: #4E9E76; --felt-deep: #6FBF97; --tile: #202A24; --paper: #131B16;
    --ink: #E6E4D8; --ink-soft: #9AA79E; --aka: #E06052; --line: #2C3830;
    --card: #1A231E; --man: #D98A72; --pin: #82A8DE; --sou: #7FC79B;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic Medium", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.65;
}
.wrap { max-width: 820px; margin: 0 auto; padding: 24px 14px 60px; }
header.top { border-bottom: 3px double var(--felt); padding-bottom: 14px; margin-bottom: 16px; }
.eyebrow { font-size: 11px; letter-spacing: .18em; color: var(--felt); font-weight: 700; }
h1 { font-family: "Hiragino Mincho ProN", "Yu Mincho", serif; font-size: 26px; margin: 2px 0 6px; }
.lead { color: var(--ink-soft); font-size: 13.5px; margin: 0; }
h2 { font-size: 16px; margin: 22px 0 10px; }
h2 .note { font-weight: 400; font-size: 12px; color: var(--ink-soft); }

.tabs { display: flex; gap: 6px; margin: 14px 0; }
.tab {
  border: 1px solid var(--line); background: var(--card); color: var(--ink-soft);
  padding: 7px 16px; border-radius: 999px; font-size: 13.5px; cursor: pointer;
}
.tab.active { background: var(--felt); border-color: var(--felt); color: #fff; font-weight: 700; }
.tab:disabled { opacity: .5; cursor: not-allowed; }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin-bottom: 14px; }
.progress { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; }
#load-bar { height: 100%; width: 0%; background: var(--felt); transition: width .2s; }

.picker-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.or { color: var(--ink-soft); font-size: 12px; }
select, button {
  font: inherit; padding: 7px 10px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
}
select { max-width: 200px; }
button { cursor: pointer; }
button.primary, #btn-search { background: var(--felt); color: #fff; border-color: var(--felt); font-weight: 700; }
button:hover { filter: brightness(1.06); }

.sit-card { border: 1px solid var(--line); border-radius: 10px; background: var(--card); padding: 12px 14px; margin-bottom: 10px; }
.sit-head { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: baseline; font-size: 12.5px; color: var(--ink-soft); margin-bottom: 8px; }
.sit-head .kyoku { font-weight: 700; color: var(--ink); font-size: 14px; }
.sim { color: var(--felt); font-weight: 700; }

.hand { display: flex; flex-wrap: wrap; gap: 2px; align-items: center; margin: 6px 0; }
.tile {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 32px; padding: 1px;
  /* 実物の牌に寄せて、ダークモードでも面は象牙色のまま */
  background: #FAF8F1; border: 1px solid #C9C4B2; border-bottom: 3px solid #B9B3A0;
  border-radius: 4px;
}
.tile img { width: 100%; height: 100%; display: block; user-select: none; }
.tile.drawn { outline: 2px solid var(--felt); outline-offset: 1px; margin-left: 8px; }
.meld { display: inline-flex; gap: 1px; margin-left: 10px; opacity: .85; transform: scale(.92); }

/* 危険度ヒート（相手テンパイ時の下端バー） */
.tile.dg1 { border-bottom-color: #E8C15A; }
.tile.dg2 { border-bottom-color: #E8964A; }
.tile.dg3 { border-bottom-color: #DE6238; }
.tile.dg4 { border-bottom-color: #C0392B; }
.dg-chip {
  display: inline-block; width: 10px; height: 10px; border-radius: 2px;
  vertical-align: -1px; margin: 0 2px 0 6px; border: 1px solid var(--line);
}
.dg-chip.dg1 { background: #E8C15A; }
.dg-chip.dg2 { background: #E8964A; }
.dg-chip.dg3 { background: #DE6238; }
.dg-chip.dg4 { background: #C0392B; }
.context { display: flex; flex-wrap: wrap; gap: 4px 16px; align-items: center; font-size: 12.5px; margin: 4px 0; }
.context .lbl { color: var(--ink-soft); font-size: 11.5px; }
.tp-hot { color: var(--aka); }
.machi { font-size: 12px; color: var(--ink-soft); }
.machi summary { cursor: pointer; }
.machi .tile { transform: scale(.8); transform-origin: left center; }

.choices { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; margin: 8px 0 4px; }
.choices .lbl { color: var(--ink-soft); font-size: 11.5px; }
.choice-tile { font-weight: 700; }
.agree { color: var(--felt); font-size: 11.5px; }
.differ { color: var(--aka); font-size: 11.5px; }

.scores { display: flex; gap: 10px; font-size: 12px; color: var(--ink-soft); flex-wrap: wrap; }
.scores b { color: var(--ink); font-variant-numeric: tabular-nums; }
.scores .me { text-decoration: underline; text-decoration-color: var(--felt); text-decoration-thickness: 2px; }
.riichi-flag { color: var(--aka); font-weight: 700; }
.badges { display: inline-flex; gap: 4px; flex-wrap: wrap; }
.badge {
  font-size: 10.5px; font-weight: 700; color: var(--felt);
  border: 1px solid var(--felt); border-radius: 999px; padding: 0 8px; line-height: 1.5;
}

.card-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; gap: 8px; flex-wrap: wrap; }
.naga-link { font-size: 13px; color: var(--felt); font-weight: 700; text-decoration: none; }
.naga-link:hover { text-decoration: underline; }
.fb { display: flex; gap: 6px; }
.fb button { padding: 4px 10px; font-size: 13px; border-radius: 999px; }
.fb button.voted { background: var(--felt); color: #fff; border-color: var(--felt); }
.fb button.voted-down { background: var(--aka); color: #fff; border-color: var(--aka); }

footer { margin-top: 34px; border-top: 1px solid var(--line); padding-top: 12px; font-size: 12px; color: var(--ink-soft); }
footer a { color: var(--felt); }
@media (max-width: 480px) {
  .tile { width: 21px; height: 28px; }
  select { max-width: 140px; }
}