/* ライブ予約フォーム（お客さん用）。デザインは見本の「B ライト」。アクセント色はシリーズごとに JS が --accent を上書きする */
:root {
  --serif: "Cormorant Garamond", "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  --bg: #f5f3ee; --surface: #ffffff; --surface2: #efece5;
  --line: rgba(20,20,20,.14); --line-strong: rgba(20,20,20,.38);
  --text: #151515; --muted: #66635b; --faint: #8f8b81;
  --accent: #151515; --on-accent: #ffffff;
  --danger: #b23a2b; --ok: #2f6b4a;
  --flyer-a: #e9e3d6; --flyer-b: #f5f3ee;
  --r: 12px; --r-lg: 24px;
  --card-sh: 0 1px 2px rgba(20,20,20,.05), 0 10px 28px rgba(20,20,20,.07);
  --gap: 52px;
  color-scheme: light;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.7 var(--sans); letter-spacing: .02em; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }

.app { max-width: 480px; margin: 0 auto; padding: 0 20px; }
.screen { padding-bottom: 40px; }

/* ---- 共通の部品 ---- */
.cap { font: 600 11px/1.4 var(--sans); letter-spacing: .22em; text-transform: uppercase; color: var(--muted); }
.sec { margin-top: var(--gap); }
.sec-h { display: flex; align-items: center; gap: 12px; margin: 0 0 18px; }
.sec-h::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.card { background: var(--surface); border: 1px solid transparent; box-shadow: var(--card-sh); border-radius: var(--r); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 54px; padding: 0 28px;
  background: var(--accent); color: var(--on-accent); border-radius: var(--r); font-weight: 600; letter-spacing: .1em;
}
.btn:active { transform: translateY(1px); opacity: .9; }
.btn:disabled { background: var(--surface2); color: var(--faint); cursor: default; transform: none; opacity: 1; }
/* 送信中: 灰色にせず、回るスピナーを出す（止まって見えないように） */
.btn.busy:disabled { background: var(--accent); color: var(--on-accent); }
.btn.ghost.busy:disabled { background: transparent; color: var(--text); }
.btn.danger.busy:disabled { background: transparent; color: var(--danger); }
.spin { display: inline-block; flex: none; width: 16px; height: 16px; margin-right: 10px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.cta.busy::before { content: ""; position: absolute; left: 0; top: -1px; height: 3px; width: 40%; background: var(--accent); border-radius: 3px; animation: slide 1.1s ease-in-out infinite; }
@keyframes slide { 0% { left: -40%; } 100% { left: 100%; } }
#f.sending { opacity: .5; pointer-events: none; transition: opacity .2s; }
.sendnote { max-width: 480px; margin: 0 auto; padding: 10px 20px 0; color: var(--muted); font-size: 12px; line-height: 1.6; text-align: center; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line-strong); }
.btn.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.btn.block { width: 100%; }
.link { background: none; border: 0; padding: 0; text-decoration: underline; text-decoration-color: var(--line-strong); text-underline-offset: 4px; }
.small { color: var(--muted); font-size: 13px; line-height: 1.7; }

/* ---- ヘッダー（予約の確認・キャンセルは画面の端に） ---- */
.top { display: flex; justify-content: space-between; align-items: center; min-height: 52px; padding-top: env(safe-area-inset-top); font-size: 13px; }
.top .link { color: var(--muted); font-size: 13px; min-height: 44px; display: inline-flex; align-items: center; }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang button { min-width: 44px; min-height: 30px; font-size: 12px; letter-spacing: .1em; color: var(--muted); }
.lang button[aria-pressed="true"] { background: var(--text); color: var(--bg); }

/* ---- 公演を選ぶ（2件以上のときだけ。カード一覧） ---- */
.picker { margin: 6px 0 24px; }
.pk-h { margin: 0 0 12px; }
.pk { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto; grid-template-areas: "d body st"; gap: 0 14px; align-items: center; width: 100%; min-height: 80px; margin-bottom: 10px; padding: 12px 16px; text-align: left; background: var(--surface); border: 1px solid transparent; border-radius: var(--r); box-shadow: var(--card-sh); }
.pk:active { transform: translateY(1px); }
.pk[aria-pressed="true"] { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--card-sh); }
.pk .d { grid-area: d; text-align: center; line-height: 1.15; }
.pk .d b { display: block; font: 400 28px/1 var(--serif); font-variant-numeric: lining-nums; }
.pk .d small { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; letter-spacing: .06em; white-space: nowrap; }
.pk .body { grid-area: body; min-width: 0; }
.pk .t { display: block; font-weight: 500; line-height: 1.5; overflow-wrap: anywhere; }
.pk .m { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; line-height: 1.5; overflow-wrap: anywhere; }
.pk .st { grid-area: st; padding: 0 10px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--muted); font-size: 12px; letter-spacing: .06em; line-height: 24px; white-space: nowrap; }
.pk .st.warn { color: var(--danger); border-color: var(--danger); }
.pk[aria-pressed="true"] .st:not(.warn) { color: var(--text); border-color: var(--text); }
@media (max-width: 380px) { /* 狭い画面では、残席を公演名の下の段に */
  .pk { grid-template-columns: 52px minmax(0, 1fr); grid-template-areas: "d body" "d st"; gap: 6px 14px; }
  .pk .st { justify-self: start; }
}

/* ---- 予約ページ ---- */
.flyer { aspect-ratio: 4 / 5; border-radius: var(--r); position: relative; display: grid; place-items: center; overflow: hidden; background: linear-gradient(160deg, var(--flyer-a), var(--flyer-b)); box-shadow: var(--card-sh); }
.flyer img { width: 100%; height: 100%; object-fit: contain; display: block; background: var(--surface2); }
.flyer.ph::after { content: ""; position: absolute; inset: 14px; border: 1px solid var(--line); border-radius: 6px; }
.flyer.ph span { font: 400 13px var(--serif); letter-spacing: .5em; color: var(--muted); text-indent: .5em; }
.head { margin-top: 28px; }
.head .series { margin-bottom: 10px; }
.head h1 { margin: 0; font: 400 30px/1.35 var(--serif); letter-spacing: .06em; overflow-wrap: anywhere; }
.date { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 12px; margin-top: 22px; }
.date b { font: 300 clamp(38px, 11.5vw, 48px)/1 var(--serif); letter-spacing: .05em; font-variant-numeric: lining-nums; }
.date i { font: normal 600 12px var(--sans); letter-spacing: .24em; color: var(--muted); }
.info { margin: 26px 0 0; display: grid; grid-template-columns: 76px minmax(0, 1fr); row-gap: 14px; column-gap: 12px; font-size: 15px; }
.info dt { color: var(--muted); font-size: 12px; letter-spacing: .16em; padding-top: 3px; }
.info dd { margin: 0; overflow-wrap: anywhere; }
.info .sub { display: block; color: var(--muted); font-size: 13px; line-height: 1.6; }
.prices { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.prices span { display: block; font-size: 11px; color: var(--muted); letter-spacing: .14em; }
.prices b { font: 400 22px/1.3 var(--serif); font-variant-numeric: lining-nums; }
.meter { margin-top: 26px; padding: 16px 18px; }
.meter .row { display: flex; justify-content: space-between; align-items: baseline; }
.meter strong { font: 400 26px/1 var(--serif); font-variant-numeric: lining-nums; }
.meter .bar { height: 2px; margin-top: 12px; background: var(--line); border-radius: 2px; overflow: hidden; }
.meter .bar i { display: block; height: 100%; background: var(--accent); }
.banner { margin-top: 14px; padding: 14px 16px; border-left: 2px solid var(--danger); background: var(--surface); border-radius: 0 var(--r) var(--r) 0; font-size: 14px; line-height: 1.8; }

.lineup { list-style: none; margin: 0; padding: 0; }
.lineup li { display: grid; grid-template-columns: 38px minmax(0, 1fr); padding: 18px 0; border-top: 1px solid var(--line); }
.lineup li:last-child { border-bottom: 1px solid var(--line); }
.lineup .no { font: 300 18px/1.4 var(--serif); color: var(--muted); }
.lineup b { font: 400 20px/1.4 var(--serif); letter-spacing: .06em; overflow-wrap: anywhere; }
.lineup p { margin: 4px 0 6px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.lineup a { font-size: 12px; letter-spacing: .1em; color: var(--muted); }

details.notes { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
details.notes summary { list-style: none; min-height: 52px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; }
details.notes summary::-webkit-details-marker { display: none; }
details.notes summary::after { content: "+"; font: 300 22px var(--serif); color: var(--muted); }
details.notes[open] summary::after { content: "−"; }
details.notes ul { margin: 0 0 16px; padding-left: 1.2em; color: var(--muted); font-size: 14px; }

/* ---- フォーム ---- */
.field { margin-bottom: 20px; }
.field > label, .field > .lb { display: block; margin-bottom: 8px; font-size: 12px; color: var(--muted); letter-spacing: .12em; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
input[type="text"], input[type="email"] {
  width: 100%; min-height: 54px; padding: 0 16px; font-size: 16px; /* 16px未満だとiPhoneで入力時に拡大される */
  background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--r); letter-spacing: .03em;
}
input::placeholder { color: var(--faint); }
.field.bad input, .field.bad .choices { border-color: var(--danger); }
.err { display: none; margin-top: 6px; color: var(--danger); font-size: 13px; }
.field.bad .err { display: block; }
.stepper { display: inline-flex; align-items: center; border: 1px solid var(--line-strong); border-radius: var(--r); background: var(--surface); }
.stepper button { width: 54px; height: 54px; font: 300 26px var(--serif); color: var(--text); }
.stepper button:disabled { color: var(--faint); cursor: default; }
.stepper output { min-width: 56px; text-align: center; font: 400 24px var(--serif); font-variant-numeric: lining-nums; }
.choices { border: 1px solid var(--line-strong); border-radius: var(--r); background: var(--surface); overflow: hidden; }
.choice { display: flex; align-items: center; gap: 14px; min-height: 56px; padding: 0 16px; cursor: pointer; overflow-wrap: anywhere; }
.choice + .choice { border-top: 1px solid var(--line); }
.choice input { position: absolute; opacity: 0; pointer-events: none; }
.ring { width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--line-strong); flex: none; display: grid; place-items: center; }
.choice input:checked + .ring { border-color: var(--accent); }
.choice input:checked + .ring::after { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.choice input:focus-visible + .ring { outline: 2px solid var(--accent); outline-offset: 2px; }
.check { display: flex; gap: 12px; align-items: flex-start; min-height: 44px; padding: 6px 0; cursor: pointer; color: var(--muted); font-size: 14px; }
.check input { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; } /* ボット用の隠し欄 */
.form-msg { margin-top: 16px; padding: 14px 16px; border-left: 2px solid var(--danger); background: var(--surface); border-radius: 0 var(--r) var(--r) 0; color: var(--danger); font-size: 14px; line-height: 1.8; }

.cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-top: 1px solid var(--line); }
.cta .in { max-width: 480px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 20px calc(env(safe-area-inset-bottom) + 12px); }
.cta small { display: block; color: var(--muted); font-size: 11px; letter-spacing: .14em; }
.cta strong { font: 400 26px/1.1 var(--serif); font-variant-numeric: lining-nums; }
.cta .btn { flex: 1; max-width: 220px; }
#s-main { padding-bottom: 120px; }

/* ---- 完了・空・読み込み ---- */
.done-mark { width: 64px; height: 64px; margin: 36px auto 22px; border-radius: 50%; border: 1px solid var(--accent); display: grid; place-items: center; color: var(--accent); }
.done h2 { margin: 0; text-align: center; font: 400 26px/1.4 var(--serif); letter-spacing: .08em; }
.code { margin-top: 28px; padding: 20px; text-align: center; }
.code b { display: block; margin: 8px 0 12px; font: 500 20px/1.3 var(--mono); letter-spacing: .08em; word-break: break-all; }
.sum { margin: 20px 0 0; display: grid; grid-template-columns: 84px minmax(0, 1fr); row-gap: 12px; font-size: 15px; }
.sum dt { color: var(--muted); font-size: 12px; letter-spacing: .14em; padding-top: 3px; }
.sum dd { margin: 0; overflow-wrap: anywhere; }
.notice { margin-top: 20px; padding: 14px 16px; color: var(--muted); font-size: 14px; line-height: 1.8; border-left: 2px solid var(--line-strong); }
.center { min-height: 60vh; display: grid; place-content: center; text-align: center; color: var(--muted); gap: 8px; }
.center h2 { margin: 0; font: 400 22px/1.5 var(--serif); letter-spacing: .08em; color: var(--text); }
.dots::after { content: "…"; animation: blink 1.2s infinite; }
@keyframes blink { 50% { opacity: .2; } }

/* ---- シート（下から出る） ---- */
.sheet { position: fixed; inset: 0; z-index: 100; display: flex; align-items: flex-end; justify-content: center; }
.scrim { position: absolute; inset: 0; background: rgba(0,0,0,.55); }
.panel { position: relative; width: 100%; max-width: 480px; max-height: 88vh; overflow: auto; padding: 22px 20px calc(env(safe-area-inset-bottom) + 24px); background: var(--surface); border-top: 1px solid var(--line); border-radius: var(--r-lg) var(--r-lg) 0 0; }
.panel h3 { margin: 0 0 18px; font: 400 22px/1.4 var(--serif); letter-spacing: .06em; }
.panel .x { position: absolute; top: 10px; right: 8px; width: 44px; height: 44px; font-size: 24px; color: var(--muted); }
.found { padding: 16px; margin-bottom: 14px; }