/* ==========================================================================
   hair salon nagi -凪- — サイト共通スタイル
   カラー管理は CSS カスタムプロパティに集約。ブレイクポイントは 768px。
   ========================================================================== */

:root {
  --color-base: #FAF6F2;        /* 温かみのあるオフホワイト */
  --color-sub: #F0E6DD;    /* セクション交互の淡いベージュ */
  --color-text: #3B332C;      /* ダークブラウン */
  --color-text-muted: #8A7E72;
  --color-accent: #B98860;    /* テラコッタ寄りのゴールドブラウン */
  --color-accent-dark: #9C6F4B;
  --color-border: rgba(59, 51, 44, 0.12);

  --font-serif: "Noto Serif JP", "Yu Mincho", serif;
  --font-sans: "Noto Sans JP", "Hiragino Sans", sans-serif;

  --header-height: 72px;
  --container-width: 1120px;
  --radius: 4px;

  --transition-fast: 0.2s ease;
  --transition-base: 0.35s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }
body {
  margin: 0;
  background: var(--color-base);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--font-serif); font-weight: 500; margin: 0; }
p { margin: 0; }

/* フォーカス可視化（キーボード操作） */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

.section {
  padding: 96px 0;
}
.section--alt { background: var(--color-sub); }
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: 0.04em;
}
.eyebrow {
  display: inline-block;
  color: var(--color-accent);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  margin-bottom: 12px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 1px solid var(--color-accent);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--solid {
  background: var(--color-accent);
  color: #FFFFFF;
}
.btn--solid:hover { background: var(--color-accent-dark); }
.btn--outline {
  background: transparent;
  color: var(--color-text);
}
.btn--outline:hover { background: rgba(200, 132, 46, 0.12); }
.btn-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(250, 246, 242, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-fast);
}
.site-header.is-scrolled { box-shadow: 0 4px 20px rgba(59,51,44,0.1); }
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.logo {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.06em;
}
.logo span { color: var(--color-accent); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-list {
  display: flex;
  gap: 28px;
}
.nav-list a {
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  position: relative;
  padding: 4px 0;
}
.nav-list a[aria-current="page"] { color: var(--color-accent); }
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-fast);
}
.nav-list a:hover::after { width: 100%; }

.nav-cta { display: none; }
@media (min-width: 769px) {
  .nav-cta { display: inline-flex; }
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  padding: 0;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--color-base);
    padding: 32px 24px;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }
  .main-nav.is-open { transform: translateX(0); }
  .nav-list {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }
  .nav-list li { width: 100%; border-bottom: 1px solid var(--color-border); }
  .nav-list a { display: block; padding: 16px 4px; }
  .nav-cta {
    display: inline-flex;
    margin-top: 24px;
    width: 100%;
  }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #FAF6F2;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(30, 24, 18, 0.45);
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: 0 24px;
}
.hero-inner h1 {
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  line-height: 1.5;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 1rem;
  color: rgba(250, 246, 242, 0.82);
  margin-bottom: 36px;
}
.hero .btn-row { justify-content: center; margin-bottom: 28px; }
.hero-hours {
  font-size: 0.85rem;
  color: rgba(250, 246, 242, 0.75);
  letter-spacing: 0.03em;
}

@media (max-width: 768px) {
  .hero { min-height: 80vh; }
  .hero .btn-row { flex-direction: column; }
  .hero .btn { width: 100%; }
}

/* ---------- Two column (concept) ---------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.two-col img { border-radius: var(--radius); }
.two-col .text-block p + p { margin-top: 20px; }
.caption {
  display: block;
  margin-top: 20px;
  font-size: 0.85rem;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.card {
  background: var(--color-sub);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card img { aspect-ratio: 4 / 3; object-fit: cover; }
.card-body { padding: 24px; }
.card-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.card-price {
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 10px;
  display: block;
}
.card-comment { font-size: 0.9rem; color: var(--color-text-muted); }

.card--icon { padding: 32px 24px; text-align: center; }
.card--icon .icon {
  width: 48px; height: 48px;
  margin: 0 auto 20px;
  color: var(--color-accent);
}
.card--icon h3 { font-size: 1.05rem; margin-bottom: 12px; }
.card--icon p { font-size: 0.9rem; color: var(--color-text-muted); }

.card--quote { padding: 32px 24px; }
.card--quote p { font-size: 0.95rem; margin-bottom: 20px; }
.card--quote .attribute { font-size: 0.8rem; color: var(--color-accent); }

@media (max-width: 768px) {
  .card-grid { grid-template-columns: 1fr; }
  .card-grid--carousel {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }
  .card-grid--carousel .card {
    flex: 0 0 82%;
    scroll-snap-align: start;
  }
}

/* ---------- Menu button ---------- */
.section-cta { text-align: center; margin-top: 48px; }

/* ---------- Interior grid ---------- */
.interior-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.interior-item img { aspect-ratio: 1 / 1; object-fit: cover; border-radius: var(--radius); }
.interior-item figcaption {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}
.interior-note {
  margin-top: 40px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ---------- Party ---------- */
.party-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
}
.party-list li:last-child { border-bottom: none; }
.party-list .value { color: var(--color-accent); }

/* ---------- News ---------- */
.news-list li {
  display: flex;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}
.news-list time {
  flex-shrink: 0;
  color: var(--color-accent);
  font-size: 0.85rem;
  width: 100px;
}
@media (max-width: 768px) {
  .news-list li { flex-direction: column; gap: 6px; }
  .news-list time { width: auto; }
}

/* ---------- FAQ(details/summary、JSなし) ---------- */
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 18px 0;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.95rem;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  color: var(--color-accent);
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ---------- 予約フォーム ---------- */
.reservation-form {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.reservation-form label {
  flex: 1 1 180px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.reservation-form .req {
  color: var(--color-accent);
  font-size: 0.7rem;
  margin-left: 6px;
}
.reservation-form input,
.reservation-form select,
.reservation-form textarea {
  background: var(--color-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}
.reservation-form textarea { resize: vertical; }
.reservation-form select { appearance: auto; }
.reservation-form button { align-self: flex-start; }
@media (max-width: 768px) {
  .reservation-form button { width: 100%; }
}

/* ---------- Access ---------- */
.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.access-map iframe {
  width: 100%;
  height: 360px;
  border: 0;
  border-radius: var(--radius);
}
.access-table {
  width: 100%;
  border-collapse: collapse;
}
.access-table th, .access-table td {
  text-align: left;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}
.access-table th {
  width: 30%;
  color: var(--color-text-muted);
  font-weight: 400;
}
@media (max-width: 768px) {
  .access-grid { grid-template-columns: 1fr; }
}

/* ---------- CTA (final) ---------- */
.cta-final {
  background: #2A2118;
  color: #FAF6F2;
  text-align: center;
}
.cta-final h2 { margin-bottom: 20px; color: #FAF6F2; }
.cta-final p { color: rgba(250, 246, 242, 0.72); margin-bottom: 36px; }
.cta-final .btn-row { justify-content: center; }
@media (max-width: 768px) {
  .cta-final .btn-row { flex-direction: column; }
  .cta-final .btn { width: 100%; }
}

/* ---------- Footer ---------- */
.site-footer {
  background: #2A2118;
  padding: 64px 0 32px;
  font-size: 0.85rem;
  color: rgba(250, 246, 242, 0.65);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-grid h3 {
  color: #FAF6F2;
  font-size: 0.95rem;
  margin-bottom: 16px;
  font-family: var(--font-sans);
  font-weight: 500;
}
.footer-grid li { margin-bottom: 10px; }
.footer-grid a:hover { color: var(--color-accent); }
.footer-sns {
  display: flex;
  gap: 16px;
  margin-top: 16px;
}
.footer-sns a {
  width: 36px; height: 36px;
  border: 1px solid rgba(250, 246, 242, 0.18);
  color: rgba(250, 246, 242, 0.85);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.footer-sns a:hover { border-color: var(--color-accent); color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid rgba(250, 246, 242, 0.14);
  padding-top: 24px;
  text-align: center;
  font-size: 0.75rem;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------- Page hero (sub pages) ---------- */
.page-hero {
  padding: 140px 0 64px;
  text-align: center;
  background: var(--color-sub);
}
.page-hero .eyebrow { margin-bottom: 16px; }
.page-hero h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); }

/* ---------- Menu page ---------- */
.menu-category { margin-bottom: 72px; }
.menu-category h2 {
  font-size: 1.4rem;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 12px;
}
.menu-items {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 40px;
}
.menu-item {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px dashed var(--color-border);
}
.menu-item .name { font-size: 0.95rem; }
.menu-item .desc { display: block; font-size: 0.8rem; color: var(--color-text-muted); margin-top: 4px; }
.menu-item .price { color: var(--color-accent); white-space: nowrap; padding-left: 16px; }
@media (max-width: 768px) {
  .menu-items { grid-template-columns: 1fr; }
}

/* ---------- Contact page ---------- */
.contact-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.contact-card {
  background: var(--color-sub);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
}
.contact-card h2 { font-size: 1.2rem; margin-bottom: 16px; }
.contact-card p { color: var(--color-text-muted); margin-bottom: 28px; font-size: 0.9rem; }
.contact-tel {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--color-accent);
  margin-bottom: 16px;
  display: block;
}
@media (max-width: 768px) {
  .contact-options { grid-template-columns: 1fr; }
}

/* utility */
.text-muted { color: var(--color-text-muted); }
.mt-24 { margin-top: 24px; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}