/* 肉しゃぶおばんざい three
 * 英国雑誌のような誌面：白とグレージュの帯で区切り、黒い文字と料理写真を主役にする。
 * 欧文と数字は Libre Caslon（英国の古典書体 Caslon の復刻）、和文見出しは明朝、本文はゴシック。
 */
:root {
  --white: #ffffff;
  --greige-50: #eee9e2;   /* 帯の地色 */
  --greige: #cbc2b6;      /* 写真の下地・罫 */
  --greige-ink: #6e665c;  /* 補足の文字 */
  --black: #000000;
  --tbd-bg: #fff2b8;

  --caslon: "Libre Caslon Text", Georgia, "Times New Roman", serif;
  --caslon-display: "Libre Caslon Display", "Libre Caslon Text", Georgia, serif;
  /* 明朝：欧文と数字は Caslon、和文は明朝で組む */
  --mincho: "Libre Caslon Text", "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", "Noto Serif CJK JP", "IPAMincho",
    "Noto Serif KR", "Noto Serif SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP",
    "Apple SD Gothic Neo", "Noto Sans KR", "PingFang SC", "Noto Sans SC", "Yu Gothic", Meiryo, sans-serif;

  --gutter: 20px;
  --cta-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--black);
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.8;
  padding-bottom: calc(var(--cta-h) + env(safe-area-inset-bottom));
  -webkit-font-smoothing: antialiased;
}
html[lang="en"] body { line-height: 1.65; }
html[lang="ko"] body { word-break: keep-all; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: 4px; text-decoration-thickness: 1px; }
h1, h2, h3, h4, p, ol, ul, dl, dd, figure { margin: 0; }
:focus-visible { outline: 2px solid var(--black); outline-offset: 3px; }

.skip { position: absolute; left: -999px; top: 8px; z-index: 50; background: var(--black); color: var(--white); padding: 8px 12px; }
.skip:focus { left: 8px; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  height: 46px; padding: 0 var(--gutter);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--greige-50);
}
.wordmark { font-family: var(--caslon-display); font-size: 24px; line-height: 1; text-decoration: none; }
.lang { display: flex; gap: 0; }
.lang button {
  font: inherit; font-size: 12px; line-height: 1; letter-spacing: 0.02em;
  min-height: 40px; padding: 0 7px;
  background: none; border: 0; color: var(--greige-ink); cursor: pointer;
}
.lang button[aria-pressed="true"] { color: var(--black); text-decoration: underline; text-underline-offset: 6px; }

/* ---------- 表紙（ヒーロー） ---------- */
.hero { padding: 18px var(--gutter) 28px; }
.masthead { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; }
.masthead__title { font-weight: 400; line-height: 0.82; }
.masthead__en {
  display: block; font-family: var(--caslon-display);
  font-size: clamp(76px, 27vw, 128px); letter-spacing: -0.035em; margin-left: -0.04em;
}
.masthead__ja {
  display: block; margin-bottom: 10px;
  font-family: var(--mincho); font-size: 14px; letter-spacing: 0.32em; line-height: 1.4;
}
.masthead__place {
  font-family: var(--mincho); font-size: 12.5px; line-height: 1.5; text-align: right;
  color: var(--greige-ink); padding-bottom: 6px; flex: none;
}
html[lang="en"] .masthead__place { font-family: var(--caslon); }

/* 表紙下の料理写真：横にゆっくり流れ続ける（同じ列を2回並べて継ぎ目なくループ） */
.hero__strip { overflow: hidden; margin: 16px calc(var(--gutter) * -1) 0; }
.hero__strip-track, .hero__strip-dup { display: flex; gap: 4px; width: max-content; }
.hero__strip-dup { padding-left: 4px; }
.hero__strip-track { animation: strip-flow 48s linear infinite; }
.hero__strip .dish { flex: none; width: min(calc((100vw - 8px) / 3), 200px); }
@keyframes strip-flow { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .hero__strip { overflow-x: auto; }
  .hero__strip-track { animation: none; }
  .hero__strip-dup { display: none; }
}
.hero__strip .dish figcaption { padding: 0 6px; }
.hero__strip .dish__name { font-size: 11.5px; color: var(--greige-ink); }
.hero__photo { margin: 16px calc(var(--gutter) * -1) 0; aspect-ratio: 4 / 3; }

.hero__tagline {
  margin-top: 20px; font-family: var(--mincho); font-weight: 500;
  font-size: 23px; line-height: 1.6; letter-spacing: 0.04em;
}
html[lang="en"] .hero__tagline { font-family: var(--caslon); font-size: 24px; line-height: 1.3; letter-spacing: 0; }
.hero__lead { margin-top: 12px; font-size: 15px; color: #222; }
.hero__floor { margin-top: 14px; display: flex; align-items: center; gap: 10px; font-size: 13.5px; }
.floor-chip {
  display: inline-grid; place-items: center; min-width: 34px; height: 24px; padding: 0 6px;
  background: var(--black); color: var(--white); font-family: var(--caslon); font-size: 13px;
}

/* ---------- セクション（白とグレージュの帯を交互に） ---------- */
.section { padding: 36px var(--gutter) 40px; scroll-margin-top: 50px; }
.section:nth-of-type(even) { background: var(--greige-50); }
.sec-head { margin-bottom: 18px; }
.sec-title { font-family: var(--mincho); font-weight: 500; font-size: 25px; line-height: 1.4; letter-spacing: 0.04em; }
html[lang="en"] .sec-title { font-family: var(--caslon-display); font-size: 30px; line-height: 1.15; letter-spacing: -0.01em; }
.body { font-size: 15px; color: #222; }
.dish-grid + .body, .body + .board { margin-top: 18px; }
.note { margin-top: 12px; font-size: 12.5px; color: var(--greige-ink); line-height: 1.7; }
.more { margin-top: 18px; font-size: 14px; }

/* 料理名：言葉の途中で改行しない（「|」の位置で改行）。万一はみ出す場合だけ折り返す */
.nm { overflow-wrap: anywhere; }
html[lang="ja"] .nm { word-break: keep-all; }

/* ---------- 写真 ---------- */
.photo { position: relative; overflow: hidden; background: var(--greige); width: 100%; }
.photo img { width: 100%; height: 100%; object-fit: cover; }
.photo--empty {
  display: flex; flex-direction: column; justify-content: flex-end; gap: 2px; padding: 12px;
  background: var(--greige-50); outline: 1px solid var(--greige); outline-offset: -1px; color: var(--greige-ink);
}
.photo__tag { font-size: 11px; letter-spacing: 0.06em; }
.photo__alt { font-family: var(--mincho); font-size: 14px; }
.photo__need { font-size: 12px; line-height: 1.5; background: var(--tbd-bg); color: var(--black); padding: 4px 6px; margin-top: 4px; }
.photo-wrap { margin: 0; }
.photo-wrap figcaption { margin-top: 6px; font-size: 12.5px; color: var(--greige-ink); line-height: 1.6; }

/* 料理写真カード */
.dish { margin: 0; min-width: 0; }
.dish img { width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: cover; background: var(--greige); }
.dish figcaption { display: flex; flex-direction: column; margin-top: 7px; min-width: 0; }
.dish__name { font-family: var(--mincho); font-size: 14.5px; line-height: 1.45; }
.dish__price { font-family: var(--caslon); font-size: 15px; margin-top: 2px; }
.dish__price .tax { display: inline; margin-left: 4px; }
.dish__pricefull { font-size: 13px; line-height: 1.6; margin-top: 4px; }
.dish-grid { display: grid; gap: 20px 10px; }
.dish-grid--2 { grid-template-columns: 1fr 1fr; }
.dish-grid--3 { grid-template-columns: repeat(3, 1fr); gap: 16px 6px; }
.dish-grid--3 .dish__name { font-size: 12.5px; }
.dish-grid--3 .dish__price { font-size: 13.5px; }
.board { display: block; }

/* ---------- 一杯から ---------- */
.one-drink__photo { margin-top: 22px; }
.mini-info { display: grid; gap: 4px; margin-top: 18px; font-size: 14px; }
.mini-info > div { display: flex; gap: 12px; }
.mini-info dt { color: var(--greige-ink); min-width: 6.5em; }
.mini-info dd { font-feature-settings: "lnum"; }

/* ---------- お品書き ---------- */
.menu__tax { font-size: 12.5px; color: var(--greige-ink); margin-top: -8px; }
.menu__group {
  margin-top: 28px; padding: 6px 0; text-align: center;
  font-family: var(--mincho); font-weight: 500; font-size: 15px; letter-spacing: 0.4em;
  border-top: 2px solid var(--black); border-bottom: 1px solid var(--black);
}
html[lang="en"] .menu__group { font-family: var(--caslon); letter-spacing: 0.06em; }
.menu__cat { margin-top: 22px; }
.menu__cat h4 { font-family: var(--mincho); font-weight: 600; font-size: 16px; line-height: 1.5; }
html[lang="en"] .menu__cat h4 { font-family: var(--caslon); font-weight: 700; }
.menu__lead { margin-top: 2px; font-size: 12.5px; color: var(--greige-ink); line-height: 1.65; }
.menu__cat ul { list-style: none; padding: 0; margin: 6px 0 0; }
.menu__cat li {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--greige-50);
}
.menu__thumb { flex: none; width: 68px; height: 68px; object-fit: cover; background: var(--greige); }
.menu__text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.menu__rec { font-size: 11px; color: var(--greige-ink); }
.menu__name { font-family: var(--mincho); font-size: 15.5px; line-height: 1.5; }
.menu__pricefull { font-size: 13px; line-height: 1.6; margin-top: 3px; }
.menu__desc { font-size: 12.5px; color: var(--greige-ink); line-height: 1.6; margin-top: 3px; }
.menu__price { flex: none; text-align: right; line-height: 1.45; padding-top: 1px; }
.menu__price, .dish__price, .menu__pricefull { font-feature-settings: "lnum"; }
.menu__price { font-family: var(--caslon); font-size: 16px; white-space: nowrap; }
.menu__price .tbd { font-family: var(--sans); font-size: 12.5px; }
.price-text { display: block; font-family: var(--sans); font-size: 12.5px; line-height: 1.5; white-space: normal; max-width: 7.5em; }
.tax { display: block; font-family: var(--sans); font-size: 10.5px; color: var(--greige-ink); }
.menu__names-note { margin-top: 10px; font-size: 12px; color: var(--greige-ink); }
.menu__names { margin-top: 2px; font-size: 13px; line-height: 1.85; }
/* 品名の途中では改行しない（「／」の位置で折り返す） */
.menu__names-item { white-space: nowrap; }
.menu .mini-info { margin-top: 26px; }

/* ---------- お席 ---------- */
.seats__photos { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 8px; margin: 18px calc(var(--gutter) * -1) 0; }
.seats__photos:empty { display: none; }
.seats__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.seat-card__label { margin-top: 8px; font-size: 12.5px; color: var(--greige-ink); }
.seat-card__num { font-family: var(--caslon); font-size: 30px; line-height: 1.1; }
.seat-card__num small { font-family: var(--sans); font-size: 12.5px; margin-left: 4px; }

/* ---------- アクセス ---------- */
.floor-badge { display: flex; align-items: center; gap: 14px; padding: 14px 16px; background: var(--black); color: var(--white); font-size: 16px; line-height: 1.5; }
.floor-badge small { font-size: 12.5px; opacity: 0.8; }
.floor-badge__num { font-family: var(--caslon-display); font-size: 46px; line-height: 1; padding-right: 14px; border-right: 1px solid rgba(255, 255, 255, 0.35); }
.steps { list-style: none; padding: 0; margin-top: 16px; }
.steps li { display: flex; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--greige); font-size: 14.5px; }
.step-no { flex: none; font-family: var(--caslon); font-size: 18px; line-height: 1.5; width: 18px; }
.access__photos { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; align-items: start; }
.address { margin: 18px 0 12px; font-size: 14.5px; }
.access .info { margin-top: 18px; }

/* ---------- 店舗情報 ---------- */
.info-title { margin-top: 32px; font-family: var(--mincho); font-weight: 500; font-size: 18px; }
.info { margin-top: 10px; border-top: 1px solid var(--black); font-size: 14px; }
.info > div { display: grid; grid-template-columns: 8em 1fr; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--greige); }
html[lang="en"] .info > div { grid-template-columns: 8.5em 1fr; }
.info dt { color: var(--greige-ink); }
.info dd { min-width: 0; overflow-wrap: anywhere; }
.info dd a[href^="tel:"] { font-feature-settings: "lnum"; }
.nowrap { white-space: nowrap; }
.info__note { display: block; margin-top: 2px; font-size: 12.5px; color: var(--greige-ink); }
.contact__buttons { display: grid; gap: 8px; margin-top: 18px; }
.contact__alt { margin-top: 12px; font-size: 13.5px; text-align: center; }

/* 未確認の値 */
.tbd { color: var(--greige-ink); }
.is-preview .tbd { background: var(--tbd-bg); color: var(--black); padding: 0 4px; outline: 1px dashed #b89a2b; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; text-align: center;
  min-height: 50px; padding: 6px 12px;
  font-size: 15px; font-weight: 600; line-height: 1.3;
  text-decoration: none; border: 1px solid var(--black);
}
.btn--primary { background: var(--black); color: var(--white); }
.btn--outline { background: var(--white); color: var(--black); }
.btn--block { display: flex; width: 100%; }
.btn--outline:active { background: var(--greige-50); }

/* ---------- 画面下の問い合わせバー ---------- */
.cta-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr) minmax(0, 0.75fr); gap: 6px;
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  background: var(--white); border-top: 1px solid var(--greige);
}
.cta-bar .btn { min-height: 52px; font-size: 14px; padding: 4px 6px; }
/* 予約ページでは「Webで予約する」を出さず2つだけ */
[data-page="reserve"] .cta-bar { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); }

/* ---------- フッター ---------- */
.site-footer { padding: 32px var(--gutter) 28px; background: var(--black); color: var(--white); font-size: 13px; }
.footer__name { font-family: var(--mincho); font-size: 16px; letter-spacing: 0.08em; }
.footer__addr { margin-top: 6px; color: #cfcfcf; }
.footer__links { margin-top: 14px; display: flex; flex-direction: column; }
.footer__links a { display: inline-block; padding: 7px 0; }
.footer__note { margin-top: 16px; font-size: 11.5px; line-height: 1.6; opacity: 0.7; }
.footer__copy { margin-top: 16px; color: #9a9a9a; font-family: var(--caslon); }

/* ---------- 確認用バー（?preview=1） ---------- */
#preview-bar { display: flex; flex-wrap: wrap; gap: 4px 14px; padding: 8px var(--gutter); background: #2f2a1b; color: #fff4c7; font-size: 12px; line-height: 1.5; }
#preview-bar[hidden] { display: none; }
#preview-bar .warn { color: #ffd166; }

/* ---------- 小さいスマホ ---------- */
@media (max-width: 374px) {
  :root { --gutter: 16px; }
  .lang button { font-size: 11px; padding: 0 5px; }
  .hero__tagline { font-size: 20px; }
  .sec-title { font-size: 22px; }
  .cta-bar .btn { font-size: 12.5px; }
  .dish-grid--3 .dish__name { font-size: 12px; }
}

/* ---------- 大きめの画面 ---------- */
@media (min-width: 720px) {
  :root { --gutter: 40px; }
  main > section > *, .site-footer > * { max-width: 680px; margin-left: auto; margin-right: auto; }
  .hero__strip, .hero__photo { margin-left: auto; margin-right: auto; }
  .cta-bar { grid-template-columns: minmax(0, 300px) minmax(0, 220px) minmax(0, 140px); justify-content: center; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* 豚しゃぶの欄：盛り合わせの写真と薬味 */
.shabu-hero { margin: 0 calc(var(--gutter) * -1) 18px; width: auto; }
.condiments { margin-top: 12px; padding: 10px 12px; font-size: 14px; line-height: 1.7; border-left: 2px solid var(--greige); }
.theme-yoru .condiments { border-left-color: var(--sakura, var(--kin)); color: var(--black); background: rgba(255, 255, 255, 0.03); }

/* コース */
.course__card { margin-top: 16px; padding: 16px; border: 1px solid var(--greige); }
.course__name { font-family: var(--mincho); font-weight: 600; font-size: 17px; line-height: 1.5; }
html[lang="en"] .course__name { font-family: var(--caslon); font-weight: 700; }
.course__price { margin-top: 6px; font-family: var(--caslon); font-size: 22px; font-feature-settings: "lnum"; }
.course__price .tax { display: inline; margin-left: 4px; font-size: 12px; }
.course__unit { margin-right: 8px; font-family: var(--sans); font-size: 12.5px; color: var(--greige-ink); }
.course__people { font-size: 13px; color: var(--greige-ink); }
.course__items { margin: 10px 0 0; padding-left: 1.2em; font-size: 14px; line-height: 1.8; }
.course__note { margin-top: 8px; font-size: 12.5px; color: var(--greige-ink); line-height: 1.6; }
.course .btn { margin-top: 20px; }
.theme-yoru .course__card { border-color: var(--kin-deep); background: rgba(255, 255, 255, 0.03); }
.theme-yoru .course__name, .theme-yoru .course__items { color: var(--black); }
.theme-yoru .course__price { color: var(--kin); }

/* ヘッダーのページ切り替えリンク（お品書き／トップ） */
.page-nav {
  margin-right: auto; margin-left: 4px; padding: 6px 10px;
  font-size: 12px; line-height: 1; letter-spacing: 0.04em; text-decoration: none; white-space: nowrap;
  border: 1px solid var(--greige); color: var(--black);
}
.theme-yoru .page-nav { border-color: var(--kin-deep); color: var(--kin); }

/* トップのお品書き入口 */
.menu-links { list-style: none; margin: 4px 0 16px; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.menu-links a {
  display: flex; align-items: center; justify-content: center; min-height: 52px; padding: 6px;
  font-family: var(--mincho); font-size: 15px; text-align: center; text-decoration: none;
  border: 1px solid var(--greige); color: var(--black);
}
.theme-yoru .menu-links a { border-color: var(--kin-deep); background: rgba(255, 255, 255, 0.03); }

/* お店からのひとこと */
.message { margin: 18px 0 0; padding: 16px 16px 14px; border-left: 2px solid var(--greige); }
.message blockquote { margin: 0; font-family: var(--mincho); font-size: 15.5px; line-height: 1.95; }
.message figcaption { margin-top: 8px; font-size: 13px; color: var(--greige-ink); text-align: right; }
.message figcaption::before { content: "— "; }
.theme-yoru .message { border-left-color: var(--sakura, var(--kin)); background: rgba(255, 255, 255, 0.03); }
.theme-yoru .message blockquote { color: var(--black); }

/* お品書きページ */
.menu-page { padding-bottom: 8px; }
.menu-page__title { font-family: var(--mincho); font-weight: 600; font-size: 28px; letter-spacing: 0.08em; }
html[lang="en"] .menu-page__title { font-family: var(--caslon-display); font-weight: 400; letter-spacing: 0; }
.menu-page .menu__tax { margin-top: 8px; }
.menu-tabs {
  position: sticky; top: calc(46px + env(safe-area-inset-top, 0px)); z-index: 15;
  display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
  background: var(--white); border-bottom: 1px solid var(--greige);
}
.menu-tabs a {
  display: flex; align-items: center; justify-content: center; min-height: 46px;
  font-family: var(--mincho); font-size: 15px; text-decoration: none; color: var(--black);
}
.theme-yoru .menu-tabs { border-bottom-color: rgba(184, 148, 92, 0.35); }
.theme-yoru .menu-tabs a { color: var(--kin); }
[data-page="menu"] .section[id] { scroll-margin-top: 100px; }
.seats__total { margin-top: 10px; font-size: 13px; color: var(--greige-ink); text-align: right; }

/* 名物（ひつまぶしおにぎり）：店内の黒板の「名物」の札のように大きく */
.specialty-sec { padding-top: 8px; padding-bottom: 8px; }
.specialty {
  display: flex; align-items: center; gap: 16px;
  margin: 12px 0 4px; padding: 20px 18px;
  border: 1px solid var(--black); outline: 1px solid var(--black); outline-offset: 3px;
}
.specialty__stamp {
  flex: none; display: flex; align-items: center; justify-content: center;
  writing-mode: vertical-rl; letter-spacing: 0.2em;
  min-height: 84px; padding: 10px 8px;
  font-family: var(--mincho); font-weight: 600; font-size: 22px; line-height: 1;
  border: 2px solid var(--black); outline: 1px solid var(--black); outline-offset: 2px;
}
html:not([lang="ja"]) .specialty__stamp { writing-mode: horizontal-tb; letter-spacing: 0.02em; font-size: 13px; min-height: 0; max-width: 5.5em; text-align: center; line-height: 1.3; }
.specialty__body { min-width: 0; }
.specialty__name { font-family: var(--mincho); font-weight: 600; font-size: 30px; line-height: 1.3; letter-spacing: 0.04em; }
html[lang="en"] .specialty__name { font-family: var(--caslon); font-weight: 700; font-size: 26px; letter-spacing: 0; }
.specialty__desc { margin-top: 8px; font-size: 14px; line-height: 1.75; }
.specialty__note { margin-top: 4px; font-size: 12.5px; color: var(--greige-ink); }
.theme-yoru .specialty { border-color: var(--kin); outline-color: var(--kin-deep); background: rgba(255, 255, 255, 0.03); }
.theme-yoru .specialty__stamp { color: var(--kin); border-color: var(--kin); outline-color: var(--kin-deep); }
.theme-yoru .specialty__name { color: var(--black); }
.theme-yoru .specialty__desc { color: var(--black); }

/* Web予約ページ */
.rsv-lead { margin-top: 12px; }
.rsv-form { display: grid; gap: 20px; }
.field__label { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; font-size: 14px; font-weight: 600; }
.field__tag { font-size: 11px; font-weight: 400; line-height: 1; padding: 3px 5px; border: 1px solid var(--greige); color: var(--greige-ink); }
.field__tag.is-req { border-color: var(--black); color: var(--black); }
.field input, .field select, .field textarea {
  display: block; width: 100%; min-height: 48px; padding: 10px 12px;
  font: inherit; font-size: 16px; line-height: 1.5; /* 16px 未満だと iPhone で拡大される */
  color: var(--black); background: var(--white);
  border: 1px solid var(--greige); border-radius: 0; -webkit-appearance: none; appearance: none;
}
.field select {
  padding-right: 36px;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: right 18px top 50%, right 13px top 50%; background-size: 5px 5px; background-repeat: no-repeat;
}
.field input[type="date"] { min-width: 0; }
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--black); outline-offset: 0; border-color: var(--black); }
.field.is-error input, .field.is-error select, .field.is-error textarea { border-color: #c0392b; }
.field__err { margin-top: 6px; font-size: 13px; color: #c0392b; }
.field__note { margin-top: 6px; font-size: 12.5px; color: var(--greige-ink); line-height: 1.6; }
.field__warn { margin-top: 8px; padding: 8px 10px; font-size: 13px; line-height: 1.6; border-left: 3px solid var(--black); background: var(--greige-50); }
.seg { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; border: 1px solid var(--greige); }
.seg label { position: relative; }
.seg label + label { border-left: 1px solid var(--greige); }
.seg input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.seg span { display: flex; align-items: center; justify-content: center; min-height: 48px; padding: 4px 6px; font-size: 14px; text-align: center; line-height: 1.3; }
.seg input:checked + span { background: var(--black); color: var(--white); font-weight: 600; }
.seg input:focus-visible + span { outline: 2px solid var(--black); outline-offset: -4px; }
.rsv-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.rsv-sub { font-family: var(--mincho); font-weight: 500; font-size: 21px; line-height: 1.4; scroll-margin-top: 70px; }
.rsv-sub:focus { outline: none; }
.rsv-review { margin-top: 14px; }
.rsv-review dd { white-space: normal; }
.rsv-actions, .rsv-done { display: grid; gap: 10px; margin-top: 20px; }
.rsv-done .rsv-review { margin: 4px 0 10px; }
.rsv-error { margin-top: 16px; padding: 10px 12px; font-size: 14px; border: 1px solid #c0392b; color: #c0392b; }
.btn:disabled { opacity: 0.6; }
button.btn { font-family: inherit; cursor: pointer; }