:root {
  --bg: #f1f8fc;
  --ink: #3a525e;
  --muted: #8795a0;
  --gold: #29abe2;
  --gold-deep: #1b8cc0;
  --line-green: #06c755;
  --ok-bg: #e7f6e9; --ok-fg: #1b7a3d;
  --few-bg: #fff6e0; --few-fg: #9c6b00;
  --full-bg: #eef1f5; --full-fg: #9aa6b4;
  --card: #fff;
  --radius: 14px;
  --shadow: 0 2px 10px rgba(0,0,0,.06);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Noto Sans JP", Meiryo, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  padding-bottom: 300px; /* トレイぶん */
}

.site-header {
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  color: #fff;
  padding: 18px 16px 16px;
  text-align: center;
}
.clinic { margin: 0 0 4px; font-size: .82rem; color: rgba(255,255,255,.9); letter-spacing: .06em; font-weight: 700; }
.site-header h1 { margin: 0; font-size: 1.22rem; letter-spacing: .04em; }
.venue { margin: 4px 0 0; font-size: .82rem; color: rgba(255,255,255,.82); }

.wrap { max-width: 640px; margin: 0 auto; padding: 14px 12px 0; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
  margin-bottom: 12px;
}

/* 来院区分セグメント */
.seg { display: flex; gap: 6px; background: #e4eef5; border-radius: 12px; padding: 4px; }
.seg-btn {
  flex: 1; border: 0; background: transparent; color: var(--muted);
  font-size: .92rem; font-weight: 700; padding: 9px 6px; border-radius: 9px;
  cursor: pointer; transition: .15s;
}
.seg-btn.is-active { background: #fff; color: var(--ink); box-shadow: var(--shadow); }
.seg-btn:disabled { opacity: .4; cursor: not-allowed; }
.hint { margin: 8px 2px 0; font-size: .76rem; color: var(--muted); }
.party {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 10px; padding-top: 10px; border-top: 1px solid #e4eef5;
}
.party-label { font-size: .86rem; font-weight: 700; color: var(--ink); }
.party-ctrl { display: flex; align-items: center; gap: 8px; }
.step {
  width: 38px; height: 38px; border: 1px solid #d4e6f1; background: #fff;
  border-radius: 10px; font-size: 1.3rem; font-weight: 800; color: var(--gold-deep);
  cursor: pointer; line-height: 1; display: flex; align-items: center; justify-content: center;
}
.step:active { background: #eef6fd; }
.party-num { min-width: 26px; text-align: center; font-size: 1.1rem; font-weight: 800; color: var(--ink); }
.party-unit { font-size: .85rem; color: var(--muted); }

/* 凡例 */
.legend {
  display: flex; flex-wrap: wrap; gap: 10px 16px; justify-content: center;
  font-size: .8rem; color: var(--muted); margin: 4px 2px 12px;
}
.legend .mk { font-weight: 800; margin-right: 2px; }
.mk.ok { color: var(--ok-fg); }
.mk.few { color: var(--few-fg); }
.mk.full { color: var(--full-fg); }

/* 日付タブ */
.tabs { display: flex; gap: 8px; overflow-x: auto; padding: 2px 2px 10px; }
.tab {
  flex: 0 0 auto; border: 1px solid #d4e6f1; background: #fff; color: var(--ink);
  border-radius: 999px; padding: 8px 16px; font-size: .9rem; font-weight: 700;
  cursor: pointer; white-space: nowrap; transition: .15s;
}
.tab small { display: block; font-size: .68rem; color: var(--muted); font-weight: 500; }
.tab.is-active { background: var(--gold); border-color: var(--gold); color: #fff; }
.tab.is-active small { color: #eaf6fd; }
.tabs-note { margin: 2px 2px 10px; font-size: .78rem; color: var(--gold-deep); font-weight: 600; }

/* 時間グリッド */
.grid-note { margin: 0 0 10px; font-size: .8rem; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
@media (min-width: 480px) { .grid { grid-template-columns: repeat(4, 1fr); } }

.slot {
  border: 1px solid #e2ebf2; border-radius: 12px; background: #fff;
  padding: 9px 4px; text-align: center; cursor: pointer; transition: .12s;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.slot .t { font-size: .92rem; font-weight: 700; }
.slot .s { font-size: 1.05rem; font-weight: 800; line-height: 1; }
.slot.ok { background: var(--ok-bg); } .slot.ok .s { color: var(--ok-fg); }
.slot.few { background: var(--few-bg); } .slot.few .s { color: var(--few-fg); }
.slot.full { background: var(--full-bg); color: var(--full-fg); cursor: not-allowed; }
.slot.full .t { color: var(--full-fg); }
.slot.selected { outline: 3px solid var(--gold); outline-offset: 1px; }
.slot .badge { font-size: .62rem; font-weight: 800; color: var(--gold-deep); }
.loading { text-align: center; color: var(--muted); font-size: .85rem; padding: 10px; }

/* 下部トレイ */
.tray {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  background: #fff; border-top: 1px solid #dbe8f1;
  box-shadow: 0 -4px 18px rgba(0,0,0,.08);
  padding: 12px 12px calc(12px + env(safe-area-inset-bottom));
}
.tray-choices { display: flex; gap: 6px; max-width: 616px; margin: 0 auto 8px; }
.choice {
  flex: 1; text-align: left; border: 1.5px dashed #cfe3f0; background: #f3f9fd;
  border-radius: 12px; padding: 7px 9px; cursor: pointer; min-width: 0;
}
.choice.filled { border-style: solid; border-color: var(--gold); background: #fff; }
.choice.active { border-color: var(--gold-deep); box-shadow: 0 0 0 2px rgba(41,171,226,.25); }
.choice-label { display: block; font-size: .64rem; color: var(--muted); font-weight: 700; }
.choice-val { display: block; font-size: .84rem; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.choice.filled .choice-val::after { content: " ✕"; color: var(--muted); font-size: .8rem; }

.tray-select {
  display: block; width: 100%; max-width: 616px; margin: 0 auto 8px;
  border: 1px solid #d4e6f1; border-radius: 10px; padding: 10px 12px;
  font-size: .95rem; background: #fff; color: var(--ink);
}
.tray-inputs { display: flex; gap: 8px; max-width: 616px; margin: 0 auto 8px; }
.companions { display: flex; flex-direction: column; gap: 6px; max-width: 616px; margin: 0 auto 8px; }
.companions .ti { width: 100%; flex: none; }
.ti {
  flex: 1; min-width: 0;
  border: 1px solid #d4e6f1; border-radius: 10px; padding: 10px 12px; font-size: .95rem;
}
.line-btn {
  width: 100%; max-width: 616px; display: block; margin: 0 auto;
  background: var(--line-green); color: #fff; border: 0; border-radius: 12px;
  padding: 14px; font-size: 1.02rem; font-weight: 800; cursor: pointer;
}
.line-btn:disabled { background: #c7c7c7; cursor: not-allowed; }
.confirm-note { text-align: center; font-size: .72rem; color: var(--muted); margin: 8px 0 0; }

/* トースト */
.toast {
  position: fixed; left: 50%; bottom: 240px; transform: translateX(-50%) translateY(20px);
  background: rgba(26,26,26,.94); color: #fff; padding: 11px 18px; border-radius: 999px;
  font-size: .85rem; opacity: 0; pointer-events: none; transition: .25s; z-index: 30;
  max-width: 90%; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* フッター（運営者情報） */
.site-footer {
  max-width: 640px; margin: 6px auto 0; padding: 12px 14px 20px;
  font-size: .76rem; color: var(--muted); line-height: 1.7;
}
.site-footer .foot-title { font-weight: 700; color: var(--ink); margin: 0 0 4px; }
.site-footer p { margin: 0; }
.site-footer a { color: var(--gold-deep); font-weight: 700; }

/* プライバシーポリシー等のドキュメントページ */
.doc h2 { font-size: 1rem; margin: 0 0 8px; }
.doc p { margin: 0 0 10px; font-size: .9rem; }
.doc ol { padding-left: 1.2em; margin: 0; }
.doc ol li { margin: 8px 0; font-size: .9rem; }
.doc ul.biz { list-style: none; padding: 0; margin: 0; }
.doc ul.biz li { font-size: .9rem; margin: 4px 0; }
.doc .meta { font-size: .8rem; color: var(--muted); margin: 8px 0 0; }
.back-link { display: inline-block; margin: 4px 2px 24px; color: var(--gold-deep); font-weight: 700; }