/* Arc — day18 / プライベートピラティス(リフォーマー) */
/* palette: white #FBFBFC / cool-grey #EDEFF2 / ink #17191C / acid lime #C6F13B */
/* voice: 極太コンデンス(Anton)のポスター・タイポ + モノクロ基調 + ライム一点 */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --paper: #FBFBFC;
  --sand: #EDEFF2;
  --card: #FFFFFF;
  --ink: #17191C;
  --soft: #757C85;
  --line: #E4E7EA;
  --accent: #C6F13B;   /* アシッドライム(=一点で効かせる差し色) */
  --accent-d: #A9D62B;
  --o: #17191C;   /* 空きあり(◯)=墨で強く(モノクロで読みやすく) */
  --x: #C2C7CD;   /* 満席(✕) */
  --shadow: 0 12px 36px rgba(20, 24, 30, .09);
  --en: "Anton", sans-serif;   /* 極太コンデンス・ポスター見出し */
  --jp: "Noto Sans JP", sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--jp); background: var(--paper); color: var(--ink); line-height: 1.85; font-size: 15px; letter-spacing: .01em; }
img { display: block; max-width: 100%; }
a { color: inherit; }
.wrap { max-width: 720px; margin: 0 auto; padding: 0 22px; }

/* topbar */
.topbar { position: fixed; top: 0; left: 0; right: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: 15px 22px; }
.topbar__logo { font-family: var(--en); font-size: 30px; letter-spacing: .01em; color: #fff; text-decoration: none; text-shadow: 0 1px 14px rgba(0,0,0,.32); transition: color .3s, text-shadow .3s; }
.topbar__pill { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-decoration: none; color: var(--ink); background: rgba(255,255,255,.94); border-radius: 999px; padding: 8px 18px; box-shadow: 0 4px 16px rgba(20,24,30,.14); }
.topbar.is-scrolled .topbar__logo { color: var(--ink); text-shadow: none; }

/* FV(ポスター構図: リフォーマー写真 + 極太タイポ + ライムのeyebrow) */
.fv { position: relative; display: flex; }
.fv__stage { position: relative; width: 100%; min-height: 92svh; overflow: hidden; display: flex; }
.fv__photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 42%; }
.fv__scrim { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(16,20,26,.34) 0%, rgba(16,20,26,.06) 38%, rgba(16,20,26,.60) 100%); }
.fv__inner { position: relative; z-index: 1; width: 100%; max-width: 720px; margin: 0 auto; padding: 0 26px 54px; display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-end; color: #fff; }
.fv__eyebrow { font-family: var(--en); font-size: 15px; letter-spacing: .18em; color: var(--accent); }
.fv__brand { font-family: var(--en); font-size: 118px; line-height: .86; letter-spacing: .005em; margin: 6px 0 16px; text-shadow: 0 2px 30px rgba(0,0,0,.36); }
.fv__tag { font-size: 16px; font-weight: 500; line-height: 1.85; text-shadow: 0 1px 14px rgba(0,0,0,.36); }
.fv__go { display: inline-block; margin-top: 22px; font-size: 13px; font-weight: 700; letter-spacing: .04em; color: #fff; text-decoration: none; border-bottom: 2px solid var(--accent); padding-bottom: 3px; }

/* section common */
.sec-eyebrow { font-family: var(--en); font-size: 16px; letter-spacing: .12em; color: var(--ink); }
.sec-eyebrow::after { content: ""; display: inline-block; width: 22px; height: 9px; margin-left: 9px; background: var(--accent); vertical-align: middle; }
.sec-title { font-family: var(--jp); font-size: 32px; font-weight: 900; letter-spacing: .01em; color: var(--ink); line-height: 1.28; margin: 8px 0 18px; }

/* calendar section */
.cal { padding: 62px 0 72px; }
.cal__lead { font-size: 14.5px; color: var(--soft); margin-bottom: 24px; }
.cal__lead b { color: var(--ink); font-weight: 700; }

/* course chips (2段: メニュー → 時間) */
.course__label { font-size: 12px; font-weight: 700; color: var(--soft); letter-spacing: .04em; margin: 0 0 8px; }
.course { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 16px; }
.course--time { margin-bottom: 18px; }
.crow--time { padding: 8px 15px; }
.crow--time small { color: var(--soft); }
.crow--time.is-on small { color: rgba(255,255,255,.72); }
.course__single { font-size: 14px; font-weight: 500; color: var(--ink); padding: 8px 2px; }
.crow { font-size: 13.5px; font-weight: 500; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 9px 16px; cursor: pointer; transition: all .15s; user-select: none; }
.crow small { color: var(--soft); margin-left: 6px; }
.crow.is-on { background: var(--ink); border-color: var(--ink); color: #fff; }
.crow.is-on small { color: rgba(255,255,255,.72); }
.course__total { font-size: 13px; color: var(--soft); margin-bottom: 22px; }
.course__total b { font-family: var(--en); font-size: 21px; color: var(--ink); font-weight: 400; letter-spacing: .01em; }

/* calendar nav */
.cal__nav { display: flex; align-items: center; justify-content: center; gap: 20px; margin-bottom: 14px; }
.cal__navbtn { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line); background: var(--card); font-size: 18px; color: var(--ink); cursor: pointer; line-height: 1; transition: all .15s; }
.cal__navbtn:hover { border-color: var(--ink); }
.cal__navbtn:disabled { opacity: .35; cursor: default; }
.cal__range { font-family: var(--jp); font-size: 17px; font-weight: 700; color: var(--ink); letter-spacing: .02em; min-width: 200px; text-align: center; }

/* calendar grid */
.cal__grid { display: grid; grid-template-columns: 92px repeat(7, 1fr); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--card); }
.cal__cell { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); min-height: 46px; display: flex; align-items: center; justify-content: center; font-size: 14px; }
.cal__cell:nth-child(8n) { border-right: none; }
.cal__grid > .cal__cell:nth-last-child(-n+8) { border-bottom: none; }
.cal__head { background: var(--sand); font-weight: 700; font-size: 12px; color: var(--ink); flex-direction: column; gap: 1px; padding: 7px 0; }
.cal__head small { font-family: var(--jp); font-size: 14px; font-weight: 700; color: var(--soft); }
.cal__head.is-today { background: var(--accent); color: var(--ink); }
.cal__head.is-today small { color: var(--ink); }
.cal__head.is-past { opacity: .4; }
.cal__timelabel { background: var(--sand); font-size: 12px; font-weight: 700; color: var(--soft); justify-content: flex-end; padding-right: 12px; }
.cal__mark { font-size: 17px; font-weight: 700; cursor: default; width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.cal__mark--o { color: var(--o); cursor: pointer; }
.cal__mark--x { color: var(--x); }
.cal__mark--c { color: #D3D8DD; }
.cal__mark--o:hover { background: rgba(198,241,59,.30); }
.cal__mark.is-active { background: var(--ink); color: var(--accent); border-radius: 4px; }

.cal__legend { font-size: 11.5px; color: var(--soft); margin-top: 16px; display: flex; flex-wrap: nowrap; gap: 14px; white-space: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.cal__legend .lgi { display: inline-flex; align-items: center; gap: 5px; flex-shrink: 0; }
.lg { font-weight: 700; margin: 0; }
.lg--o { color: var(--o); } .lg--x { color: var(--x); } .lg--c { color: #D3D8DD; }
.cal__note { font-size: 12px; color: var(--soft); margin-top: 10px; }

/* cta */
.cta { padding: 8px 0 72px; }
.cta__card { background: var(--ink); border-radius: 16px; box-shadow: var(--shadow); padding: 32px 26px; text-align: center; }
.cta__label { font-family: var(--en); font-size: 15px; letter-spacing: .12em; color: var(--accent); }
.cta__summary { font-size: 18px; font-weight: 700; color: #fff; margin: 12px 0 22px; line-height: 1.7; }
.cta__summary.is-placeholder { color: rgba(255,255,255,.6); font-size: 14px; font-weight: 500; }
.cta__buttons { display: flex; flex-direction: column; gap: 10px; }
.btn { display: block; text-decoration: none; font-weight: 700; font-size: 15px; border-radius: 12px; padding: 15px 18px; transition: opacity .15s; }
.btn:hover { opacity: .88; }
.btn--line { background: var(--accent); color: var(--ink); }
.btn--tel { background: rgba(255,255,255,.10); color: #fff; }
.btn--tel span { font-family: var(--jp); font-weight: 700; margin-left: 6px; }
.cta__note { margin-top: 16px; font-size: 12px; color: rgba(255,255,255,.62); }

/* menu */
.menu { padding: 0 0 72px; }
.menu__list { border-top: 2px solid var(--ink); }
.menu__list > div { display: flex; align-items: baseline; gap: 12px; padding: 15px 2px; border-bottom: 1px solid var(--line); }
.menu__list dt { font-weight: 700; color: var(--ink); }
.menu__list dt small { font-weight: 500; color: var(--soft); font-size: 12px; margin-left: 10px; }
.menu__list dd { margin-left: auto; font-family: var(--en); font-size: 24px; font-weight: 400; color: var(--ink); white-space: nowrap; letter-spacing: .01em; }
.menu__note { margin-top: 14px; font-size: 12px; color: var(--soft); }

/* about */
.about { padding: 0 0 72px; }
.about__text { font-size: 15px; color: var(--ink); max-width: 600px; }
.about__photos { margin-top: 28px; display: grid; gap: 20px; }
.about__photos img { border-radius: 12px; width: 100%; height: 300px; object-fit: cover; }
.about__photos figcaption { font-size: 12px; color: var(--soft); margin-top: 9px; }

/* access */
.access { padding: 0 0 88px; }
.access__list { border-top: 2px solid var(--ink); }
.access__list > div { display: flex; gap: 20px; padding: 13px 2px; border-bottom: 1px solid var(--line); font-size: 14px; }
.access__list dt { min-width: 56px; font-weight: 700; color: var(--ink); flex-shrink: 0; }
.access__note { margin-top: 14px; font-size: 11px; color: var(--soft); }

/* footer */
.footer { background: var(--ink); color: #D3D7DC; text-align: center; padding: 52px 22px 44px; }
.footer__logo { font-family: var(--en); font-size: 34px; letter-spacing: .01em; color: #fff; }
.footer__addr { font-size: 12px; opacity: .66; margin-top: 8px; }
.footer__making { margin-top: 26px; font-size: 13px; }
.footer__making a { color: var(--accent); }
.footer__project { margin-top: 10px; font-size: 11px; opacity: .55; }
.footer__project a { color: inherit; text-decoration: none; }

/* PC */
@media (min-width: 768px) {
  body { font-size: 16px; }
  .topbar { padding: 20px 34px; }
  .fv { background: var(--sand); align-items: center; justify-content: center; padding: 40px 0; }
  .fv__stage { width: min(676px, calc(100vw - 44px)); min-height: 0; height: 78vh; border-radius: 4px; }
  .fv__photo { object-position: 50% 40%; }
  .fv__brand { font-size: 132px; }
  .fv__tag { font-size: 17px; }
  .sec-title { font-size: 33px; }
  .cal { padding: 96px 0 88px; }
  .cta__buttons { flex-direction: row; }
  .cta__buttons .btn { flex: 1; }
  .about__photos { grid-template-columns: 1fr 1fr 1fr; }
  .about__photos img { height: 260px; }
}