/* nail-l.com — amathesalon.com を参考にしたミニマル構成
   見出し: EB Garamond（大文字・セリフ） / 本文: Noto Sans JP
   アクセント: テラコッタ #B16843（メニュー面の地色）
*/
:root {
  --ink: #1a1a1a;
  --ink-soft: rgba(72, 60, 60, 0.85);
  --paper: #ffffff;
  --paper-soft: #fafafa;
  --terra: #b16843;
  --terra-ink: #ffffff;
  --line: rgba(0, 0, 0, 0.12);
  --serif: "EB Garamond", "Times New Roman", serif;
  --sans: "Noto Sans JP", system-ui, -apple-system, sans-serif;
  --maxw: 1100px;
  --gutter: 16px;
}
@media (min-width: 720px) { :root { --gutter: 40px; } }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.9;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: 0.06em; margin: 0; }
h1 { font-size: clamp(2rem, 6vw, 3rem); text-transform: uppercase; }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); text-transform: uppercase; }
h3 { font-size: 1.15rem; text-transform: uppercase; letter-spacing: 0.1em; }
p { margin: 0 0 1em; }
.muted { color: var(--ink-soft); }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-family: var(--serif); font-size: 2rem; letter-spacing: 0.04em; line-height: 1; }
.logo small { font-family: var(--sans); font-size: 0.65rem; letter-spacing: 0.3em; margin-left: 0.6em; vertical-align: middle; }
.nav { display: flex; gap: 1.6em; font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; }
.nav a { padding: 0.4em 0; border-bottom: 1px solid transparent; }
.nav a:hover, .nav a[aria-current] { border-bottom-color: var(--ink); }
@media (max-width: 719px) { .nav { display: none; } .nav-mobile { display: block; } }
.nav-mobile { display: none; font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase; }

/* ---------- sections ---------- */
section { padding: clamp(56px, 10vw, 120px) 0; }
section + section { border-top: 1px solid var(--line); }
.section-title { text-align: center; margin-bottom: 2em; }
.hero { text-align: center; padding: clamp(80px, 14vw, 180px) 0; }
.hero p { max-width: 34em; margin: 1.5em auto 2.5em; }

/* 写真付きヒーロー: 画像の左側（無地の布）に文字を載せる */
.hero-image {
  position: relative;
  min-height: clamp(420px, 62vw, 680px);
  display: flex;
  align-items: center;
  text-align: left;
  padding: 0;
  overflow: hidden;
  color: #2b2321;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; }
.hero-image::after {
  /* 左側を少し白くして文字を読みやすく */
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(90deg, rgba(255,252,247,.78) 0%, rgba(255,252,247,.45) 40%, rgba(255,252,247,0) 70%);
}
.hero-content { position: relative; z-index: 2; padding-top: 48px; padding-bottom: 48px; }
.hero-image h1 { color: #2b2321; }
.hero-image p { color: rgba(43,35,33,.85); margin: 1.5em 0 2.5em; max-width: 30em; }
@media (max-width: 719px) {
  .hero-image { min-height: 520px; align-items: flex-end; text-align: center; }
  .hero-bg img { object-position: 60% 30%; }
  .hero-image::after { background: linear-gradient(180deg, rgba(255,252,247,0) 30%, rgba(255,252,247,.9) 75%); }
  .hero-image p { margin-left: auto; margin-right: auto; }
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero-image { color: #2b2321; }
}
.btn {
  display: inline-block;
  padding: 0.85em 2.4em;
  border-radius: 999px;
  background: var(--terra);
  color: var(--terra-ink);
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid var(--terra);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.btn:hover { background: transparent; color: var(--terra); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }
.btn[disabled] { opacity: 0.4; cursor: not-allowed; }
.two-col { display: grid; gap: 40px; }
@media (min-width: 720px) { .two-col { grid-template-columns: 1fr 1fr; gap: 64px; } }
.prose { max-width: 40em; }

/* menu (terracotta face, like the Treatments page) */
.menu-face { background: var(--terra); color: var(--terra-ink); }
.menu-face section + section { border-top-color: rgba(255, 255, 255, 0.2); }
.menu-cols { display: grid; gap: 40px; }
@media (min-width: 720px) { .menu-cols { grid-template-columns: 1fr 1fr; gap: 64px; } }
.menu-item { padding: 1em 0; border-bottom: 1px solid rgba(255, 255, 255, 0.25); }
.menu-item:last-child { border-bottom: 0; }
.menu-item .name { font-family: var(--serif); font-size: 1.2rem; letter-spacing: 0.08em; }
.menu-item .desc { font-size: 0.85rem; opacity: 0.9; }
.menu-item .meta { font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.9; }

/* access / contact */
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0.3em 1.5em; font-size: 0.9rem; }
.kv dt { letter-spacing: 0.15em; text-transform: uppercase; font-size: 0.7rem; color: var(--ink-soft); padding-top: 0.35em; }
.kv dd { margin: 0; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; font-size: 0.8rem; color: var(--ink-soft); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1em 2.5em; justify-content: space-between; }
.site-footer a:hover { text-decoration: underline; }

/* ---------- booking page ---------- */
.book { max-width: 640px; margin: 0 auto; }
.step { padding: 32px 0; border-top: 1px solid var(--line); }
.step:first-child { border-top: 0; }
.step h3 { margin-bottom: 1em; }
.step[hidden] { display: none; }
.choices { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  padding: 0.6em 1.2em;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.chip:hover { background: var(--paper-soft); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.chip .sub { display: block; font-size: 0.7rem; letter-spacing: 0.1em; opacity: 0.7; }
.slot-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 8px; }
.slot-grid .chip { text-align: center; padding: 0.6em 0; }
.field { display: block; margin-bottom: 1.2em; }
.field span { display: block; font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 0.4em; }
.field input {
  width: 100%;
  padding: 0.7em 0.9em;
  border: 1px solid var(--line);
  border-radius: 4px;
  font: inherit;
  background: var(--paper);
  color: var(--ink);
}
.field input:focus { outline: none; border-color: var(--ink); }
.policy { background: var(--paper-soft); padding: 1.2em 1.4em; border-radius: 6px; font-size: 0.85rem; margin-bottom: 1.5em; }
.policy-title { font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 0.4em; }
.policy p { margin-bottom: 0.8em; }
.card-field { margin: 1em 0 1.2em; }
#card-container { min-height: 90px; }
.check { display: flex; gap: 0.6em; align-items: flex-start; cursor: pointer; }
.check input { margin-top: 0.4em; }
.summary { background: var(--paper-soft); padding: 1.2em 1.4em; border-radius: 6px; font-size: 0.9rem; margin-bottom: 1.5em; }
.summary b { font-family: var(--serif); font-size: 1.1rem; letter-spacing: 0.05em; }
.notice { padding: 1em 1.2em; border-radius: 6px; font-size: 0.9rem; }
.notice.error { background: #fbeeea; color: #7a2e12; }
.notice.ok { background: #eef5ea; color: #2b5a1c; }
.notice[hidden] { display: none; }
.empty { color: var(--ink-soft); font-size: 0.9rem; }
.date-nav { display: flex; align-items: center; justify-content: space-between; gap: 1em; margin-bottom: 1em; }
.date-nav .current { font-family: var(--serif); font-size: 1.3rem; letter-spacing: 0.05em; }
.date-nav input[type="date"] { font: inherit; padding: 0.4em 0.6em; border: 1px solid var(--line); border-radius: 4px; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #f2efeb; --ink-soft: rgba(242, 239, 235, 0.7);
    --paper: #151313; --paper-soft: #201d1d; --line: rgba(255, 255, 255, 0.14);
  }
  :root:not([data-theme="light"]) .site-header { background: rgba(21, 19, 19, 0.92); }
  :root:not([data-theme="light"]) .notice.error { background: #3a1f16; color: #f4c9b8; }
  :root:not([data-theme="light"]) .notice.ok { background: #1d2f17; color: #c7e6b8; }
}
:root[data-theme="dark"] {
  --ink: #f2efeb; --ink-soft: rgba(242, 239, 235, 0.7);
  --paper: #151313; --paper-soft: #201d1d; --line: rgba(255, 255, 255, 0.14);
}