/* =========================================================================
   うどんカフェ 水木金土 — 共通スタイル（大正レトロ × 和モダン）
   配色: 生成り(sepia) × 墨 × 海老茶(ebicha) × からし金 × 深緑 × 朱
   フォント: 見出し=Shippori Mincho（明朝）/ 本文=Zen Kaku Gothic New
            装飾=Poiret One（アールデコ）
   ========================================================================= */
@import url("https://fonts.googleapis.com/css2?family=Poiret+One&family=Kaisei+Decol:wght@500;700&display=swap");

:root {
  --washi: #efe4cb;        /* セピアがかった生成りの紙 */
  --washi-2: #e6d6b6;      /* 一段濃い紙（カード・区切り） */
  --sumi: #2c2318;         /* 墨（深いセピア黒） */
  --sumi-soft: #5f4f3a;    /* やわらかい文字色 */
  --ebicha: #7c2f26;       /* 海老茶（主役のアクセント） */
  --ebicha-deep: #5a2019;  /* 濃い海老茶 */
  --shu: #b5462f;          /* 朱（差し色） */
  --karashi: #c2933a;        /* からし金（見出し装飾・アクセント・暗背景での使用） */
  --karashi-text: #7a571f;   /* からし金（明背景でのテキスト・WCAG AA 4.5:1 確保） */
  --gold: #ad8636;         /* 金の罫線 */
  --matcha: #54603a;       /* 深緑 */
  --line: rgba(122, 47, 38, 0.22);
  --gold-line: rgba(173, 134, 54, 0.55);
  --shadow: 0 20px 44px -26px rgba(60, 32, 20, 0.55);

  --font-serif: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-sans: "Zen Kaku Gothic New", "Hiragino Sans", sans-serif;
  --font-deco: "Poiret One", "Kaisei Decol", sans-serif;

  --maxw: 1080px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--sumi);
  background-color: var(--washi);
  /* 矢絣(やがすり)を思わせる斜めの織り＋セピアの紙の質感 */
  background-image:
    repeating-linear-gradient(45deg, rgba(122,47,38,0.035) 0 2px, transparent 2px 18px),
    repeating-linear-gradient(-45deg, rgba(173,134,54,0.04) 0 2px, transparent 2px 22px),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  line-height: 1.9;
  letter-spacing: 0.03em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--ebicha); text-decoration: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--font-serif); font-weight: 700; line-height: 1.45; }

.eyebrow {
  font-family: var(--font-deco);
  font-size: 1.05rem; letter-spacing: 0.42em; text-transform: uppercase;
  color: var(--karashi-text); display: inline-block;
}

.section-title { font-size: clamp(1.7rem, 3.6vw, 2.5rem); margin: 0.35em 0 0.2em; color: var(--ebicha-deep); }
.section-title .ja-small {
  display: block; font-family: var(--font-sans); font-size: 0.9rem;
  letter-spacing: 0.28em; color: var(--matcha); margin-top: 0.7em;
}
/* 大正風の金の飾り罫（見出しの下） */
.rule-deco { display: flex; align-items: center; gap: 12px; margin: 14px 0 4px; color: var(--gold); }
.rule-deco::before, .rule-deco::after { content: ""; height: 1px; background: var(--gold-line); flex: 1; }
.rule-deco span { font-family: var(--font-deco); letter-spacing: 0.3em; font-size: 0.8rem; }

/* --- ヘッダー / ナビ ----------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(239, 228, 203, 0.9); backdrop-filter: blur(8px);
  border-bottom: 3px double var(--gold-line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: baseline; gap: 12px; }
.brand .mark { font-family: var(--font-serif); font-weight: 700; font-size: 1.4rem; color: var(--ebicha-deep); letter-spacing: 0.12em; }
.brand .romaji { font-family: var(--font-deco); letter-spacing: 0.34em; font-size: 0.72rem; color: var(--karashi-text); text-transform: uppercase; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--sumi-soft); font-size: 0.93rem; position: relative; }
.nav-links a:hover, .nav-links a.is-active { color: var(--ebicha-deep); }
.nav-links a.is-active::after { content: ""; position: absolute; left: 0; bottom: -7px; width: 100%; height: 2px; background: var(--karashi); }
.nav-cta { background: var(--ebicha); color: var(--washi) !important; padding: 9px 20px; border: 1px solid var(--gold-line); font-size: 0.88rem; transition: background .25s, transform .25s; }
.nav-cta:hover { background: var(--ebicha-deep); transform: translateY(-1px); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; font-size: 1.5rem; color: var(--sumi); }

/* --- ボタン（大正＝直線的・金縁） --------------------------------------- */
.btn {
  display: inline-block; cursor: pointer; font-family: var(--font-serif); font-weight: 600;
  font-size: 0.98rem; letter-spacing: 0.1em; padding: 13px 32px;
  border: 1px solid var(--gold); background: var(--ebicha); color: var(--washi);
  box-shadow: inset 0 0 0 3px rgba(239,228,203,0.12);
  transition: background .25s, transform .25s, box-shadow .25s;
}
.btn:hover { background: var(--ebicha-deep); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-ghost { background: transparent; color: var(--ebicha-deep); box-shadow: none; }
.btn-ghost:hover { background: var(--ebicha); color: var(--washi); }

/* --- 登場アニメ --------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .9s ease, transform .9s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* =========================================================================
   トップ：ヒーロー
   ========================================================================= */
.hero { position: relative; overflow: hidden; padding: clamp(64px,11vw,120px) 0 clamp(54px,9vw,104px); }
.hero::before { /* 大正風の金の二重枠 */
  content: ""; position: absolute; inset: 22px; border: 1px solid var(--gold-line);
  outline: 4px solid rgba(173,134,54,0.12); outline-offset: -7px; pointer-events: none; opacity: 0.5;
}
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 50px; align-items: center; }
.hero h1 { font-size: clamp(2.4rem,6vw,4rem); line-height: 1.28; color: var(--sumi); letter-spacing: 0.05em; }
.hero h1 .accent { color: var(--ebicha); }
.hero .lead { margin: 26px 0 34px; font-size: 1.05rem; color: var(--sumi-soft); max-width: 30em; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-days { margin-top: 30px; display: flex; gap: 10px; align-items: center; font-family: var(--font-serif); font-size: 0.95rem; color: var(--matcha); }
.hero-days .day { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--matcha); color: var(--ebicha-deep); }
.hero-days .day.off { opacity: 0.3; border-style: dashed; }

/* ヒーロー写真（外観） */
.hero-photo { display: block; position: relative; overflow: hidden; border: 1px solid var(--gold-line); box-shadow: var(--shadow); }
.hero-photo::after { content: ""; position: absolute; inset: 8px; border: 1px solid rgba(255,255,255,0.35); pointer-events: none; }
.hero-photo img { display: block; width: 100%; height: 100%; aspect-ratio: 3/2; object-fit: cover; }

/* お店のようすギャラリー */
.gallery { padding: 70px 0 40px; background: var(--washi-2); }
.gallery-heading { font-family: var(--font-serif); font-size: 1.6rem; color: var(--ebicha-deep); text-align: center; margin-bottom: 32px; letter-spacing: 0.08em; position: relative; }
.gallery-heading::after { content: ""; display: block; width: 48px; height: 1px; background: var(--gold-line); margin: 14px auto 0; }
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gallery-item { position: relative; margin: 0; overflow: hidden; border: 1px solid var(--gold-line); background: white; }
.gallery-item::before { content: ""; position: absolute; inset: 6px; border: 1px solid rgba(194,147,58,0.18); pointer-events: none; z-index: 1; }
.gallery-item img { display: block; width: 100%; aspect-ratio: 3/2; object-fit: cover; transition: transform 0.6s ease; }
.gallery-item:hover img { transform: scale(1.04); }
.gallery-item figcaption { padding: 10px 14px; font-size: 0.88rem; color: var(--sumi-soft); background: white; border-top: 1px solid var(--gold-line); font-family: var(--font-serif); letter-spacing: 0.04em; }

/* 帯（2本立て） */
.pillars { padding: 70px 0; }
.pillars-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.pillar { background: var(--washi-2); border: 1px solid var(--gold-line); padding: 40px 36px; position: relative; }
.pillar::before { content: ""; position: absolute; inset: 8px; border: 1px solid var(--line); pointer-events: none; }
.pillar .num { font-family: var(--font-serif); font-size: 2.6rem; color: var(--ebicha); opacity: 0.5; line-height: 1; }
.pillar h3 { font-size: 1.4rem; margin: 8px 0 12px; color: var(--ebicha-deep); }
.pillar p { color: var(--sumi-soft); font-size: 0.96rem; }
.pillar .more { display: inline-block; margin-top: 18px; color: var(--ebicha); font-size: 0.92rem; }
.pillar .more::after { content: " ▸"; }

/* 次回コンサート予告 */
.next-concert { padding: 60px 0; }
.nc-card { background: var(--ebicha-deep); color: #f0e3c8; padding: 44px clamp(28px,5vw,56px); display: grid; grid-template-columns: auto 1fr auto; gap: 32px; align-items: center; box-shadow: var(--shadow); border: 1px solid var(--gold-line); position: relative; }
.nc-card::before { content: ""; position: absolute; inset: 9px; border: 1px solid rgba(194,147,58,0.4); pointer-events: none; }
.nc-date { text-align: center; border-right: 1px solid rgba(194,147,58,0.5); padding-right: 28px; }
.nc-date .d { font-family: var(--font-serif); font-size: 1.1rem; line-height: 1.6; color: #f5ecd5; letter-spacing: 0.05em; }
.nc-date .m { display: none; }
.nc-body h3 { color: #fff; font-size: 1.5rem; }
.nc-body p { opacity: 0.88; font-size: 0.95rem; margin-top: 6px; }
.nc-card .btn { background: var(--karashi); color: var(--ebicha-deep); border-color: var(--karashi); white-space: nowrap; }
.nc-card .btn:hover { background: #d8a948; }

/* --- 下層ページ見出し帯 ------------------------------------------------- */
.page-hero { padding: 64px 0 36px; border-bottom: 3px double var(--gold-line); }
.page-hero .section-title { margin-top: 0.3em; }

/* --- メニュー ----------------------------------------------------------- */
.menu-section { padding: 56px 0; }
.menu-group + .menu-group { margin-top: 48px; }
.menu-group h3 { font-size: 1.3rem; color: var(--ebicha-deep); border-bottom: 2px solid var(--karashi); display: inline-block; padding-bottom: 6px; margin-bottom: 22px; }
.menu-list { display: grid; gap: 4px; }
.menu-item { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: baseline; padding: 14px 0; border-bottom: 1px dashed var(--line); }
.menu-item .name { font-family: var(--font-serif); font-size: 1.08rem; }
.menu-item .desc { display: block; font-family: var(--font-sans); font-size: 0.85rem; color: var(--sumi-soft); margin-top: 2px; }
.menu-item .price { font-family: var(--font-deco); font-size: 1.25rem; color: var(--ebicha); white-space: nowrap; }
.menu-note { margin-top: 28px; font-size: 0.85rem; color: var(--sumi-soft); }

/* --- コンサート一覧 ----------------------------------------------------- */
.concert-list { display: grid; gap: 24px; padding: 48px 0; }
.concert-card { display: grid; grid-template-columns: 140px 1fr auto; gap: 28px; align-items: center; background: var(--washi-2); border: 1px solid var(--gold-line); padding: 28px 32px; transition: transform .25s, box-shadow .25s; position: relative; }
.concert-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.cc-date { text-align: center; border-right: 1px solid var(--line); padding-right: 24px; }
.cc-date .date-plain { font-family: var(--font-serif); font-size: 1rem; color: var(--ebicha-deep); line-height: 1.6; letter-spacing: 0.05em; display: block; }
.cc-date .time { font-size: 0.82rem; color: var(--sumi-soft); margin-top: 6px; }
.cc-body h3 { font-size: 1.3rem; color: var(--ebicha-deep); }
.cc-body .performer, .cc-body .formation { color: var(--matcha); font-size: 0.95rem; margin: 4px 0 8px; }
.cc-body .meta-line { font-size: 0.88rem; color: var(--sumi-soft); }
.cc-body .note { font-size: 0.9rem; color: var(--sumi-soft); margin-top: 6px; }
.cc-meta, .cc-side { text-align: right; }
.cc-meta .fee, .cc-side .fee { font-family: var(--font-deco); font-size: 1.45rem; color: var(--ebicha); }
.cc-meta .cap, .cc-side .feeNote { font-size: 0.78rem; color: var(--sumi-soft); margin: 4px 0 12px; }

/* --- フォーム ----------------------------------------------------------- */
.reserve-wrap, .form-wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; padding: 48px 0; align-items: start; }
.form-card { background: var(--washi-2); border: 1px solid var(--gold-line); padding: 40px clamp(24px,4vw,44px); position: relative; }
.form-card::before { content: ""; position: absolute; inset: 8px; border: 1px solid var(--line); pointer-events: none; }
.form-card form { position: relative; z-index: 1; }
.field { margin-bottom: 22px; }
.field label { display: block; font-size: 0.9rem; margin-bottom: 7px; color: var(--sumi); }
.field label .req { color: var(--shu); font-size: 0.8rem; margin-left: 6px; }
.field input, .field select, .field textarea { width: 100%; font-family: var(--font-sans); font-size: 1rem; color: var(--sumi); background: #f8f0dc; border: 1px solid var(--line); padding: 12px 14px; transition: border-color .2s, box-shadow .2s; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--ebicha); box-shadow: 0 0 0 3px rgba(124,47,38,0.12); }
.field textarea { min-height: 100px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-actions .btn { width: 100%; font-size: 1.05rem; padding: 15px; margin-top: 6px; }
.form-status { margin-top: 18px; padding: 14px 18px; font-size: 0.92rem; display: none; }
.form-status.show { display: block; }
.form-status.ok { background: rgba(84,96,58,0.16); color: var(--matcha); border: 1px solid var(--matcha); }
.form-status.err { background: rgba(181,70,47,0.1); color: var(--shu); border: 1px solid var(--shu); }
.form-status.loading { background: var(--washi); color: var(--sumi-soft); border: 1px solid var(--line); }
.reserve-aside, .form-aside { font-size: 0.95rem; color: var(--sumi-soft); }
.reserve-aside h3, .form-aside h3 { font-size: 1.2rem; color: var(--ebicha-deep); margin-bottom: 14px; }
.reserve-aside ul, .form-aside ul { list-style: none; }
.reserve-aside li, .form-aside li { padding: 8px 0 8px 22px; position: relative; border-bottom: 1px dashed var(--line); }
.reserve-aside li::before, .form-aside li::before { content: "❖"; position: absolute; left: 0; color: var(--karashi-text); }

/* --- お店情報 ----------------------------------------------------------- */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; padding: 48px 0; }
.info-table { width: 100%; border-collapse: collapse; }
.info-table th, .info-table td { text-align: left; padding: 14px 0; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 0.95rem; }
.info-table th { width: 36%; color: var(--ebicha-deep); font-weight: 700; font-family: var(--font-serif); }

/* --- 管理 --------------------------------------------------------------- */
.admin-section + .admin-section { margin-top: 48px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; margin-top: 16px; background: #f8f0dc; }
.admin-table th, .admin-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.admin-table th { background: var(--washi-2); font-family: var(--font-serif); color: var(--ebicha-deep); }
.admin-empty { padding: 40px; text-align: center; color: var(--sumi-soft); background: #f8f0dc; }
.admin-badge { display: inline-block; background: var(--ebicha); color: var(--washi); padding: 2px 12px; font-size: 0.8rem; }

/* --- フッター ----------------------------------------------------------- */
.site-footer { margin-top: 80px; background: var(--ebicha-deep); color: #ecdcbf; padding: 56px 0 32px; border-top: 4px double var(--karashi); }
.site-footer a { color: #ecdcbf; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.site-footer h3 { font-family: var(--font-serif); font-size: 1.05rem; margin-bottom: 14px; color: #fff; }
.site-footer p, .site-footer li { font-size: 0.9rem; opacity: 0.9; list-style: none; line-height: 2; }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(194,147,58,0.35); font-size: 0.8rem; opacity: 0.72; text-align: center; font-family: var(--font-deco); letter-spacing: 0.2em; }

/* SNS アイコン（フッターのブランド説明文の下） */
.social-icons { display: flex; gap: 10px; margin-top: 16px; }
.social-icons a { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: rgba(194,147,58,0.18); color: var(--karashi); transition: background .15s, color .15s; opacity: 1; }
.social-icons a:hover { background: var(--karashi); color: var(--ebicha-deep); }
.social-icons svg { width: 18px; height: 18px; fill: currentColor; }

/* --- レスポンシブ ------------------------------------------------------- */
@media (max-width: 880px) {
  .hero-inner, .pillars-grid, .reserve-wrap, .form-wrap, .info-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero::before { inset: 12px; }
  .hero-photo { max-width: 100%; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .gallery { padding: 50px 0 30px; }
  .nc-card, .concert-card { grid-template-columns: 1fr; text-align: center; gap: 18px; }
  .nc-date, .cc-date { border-right: 0; border-bottom: 1px solid rgba(194,147,58,0.4); padding: 0 0 14px; }
  .cc-date { border-bottom-color: var(--line); }
  .cc-meta, .cc-side { text-align: center; }
  .nav-links { position: fixed; inset: 72px 0 auto 0; flex-direction: column; gap: 0; background: var(--washi); border-bottom: 1px solid var(--line); padding: 8px 24px 20px; display: none; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--line); width: 100%; }
  .nav-toggle { display: block; }
  .admin-table { display: block; overflow-x: auto; white-space: nowrap; }
}

/* --- 本日のひとこと（トップの更新枠） --------------------------------- */
.today-banner {
  max-width: var(--maxw);
  margin: 18px auto 0;
  padding: 12px 20px;
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  background: linear-gradient(180deg, rgba(194, 147, 58, 0.16), rgba(194, 147, 58, 0.08));
  border: 1px solid var(--gold-line);
  border-left: 5px solid var(--shu);
  border-radius: 6px;
  font-family: var(--font-serif);
}
.today-banner .tb-label {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--ebicha);
  background: rgba(124, 47, 38, 0.08);
  padding: 2px 10px;
  border-radius: 4px;
  white-space: nowrap;
}
.today-banner .tb-msg { font-size: 1.02rem; color: var(--sumi); }
.today-banner.is-closed { border-left-color: var(--sumi-soft); }
.today-banner.is-closed .tb-label { color: #fff; background: var(--shu); }