/* ==========================================================
   TEAM hair — 酸性ストレート専門・髪質改善サロン
   ========================================================== */

:root {
  --black: #0c0c0d;
  --near-black: #161616;
  --ivory: #f7f4ee;
  --white: #ffffff;
  --gold: #b9964f;
  --gold-light: #d9bd82;
  --gold-deep: #8f7332;
  --text-main: #1c1a17;
  --text-sub: #635e56;
  --line: rgba(12,12,13,0.1);

  --font-serif: "Zen Old Mincho", "Noto Serif JP", serif;
  --font-sans: "Noto Sans JP", sans-serif;

  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id], div#reserve { scroll-margin-top: 84px; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text-main);
  background: var(--ivory);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { font-family: var(--font-serif); margin: 0; font-weight: 600; }
p { margin: 0; }

.sp-only { display: none; }

/* ---------- progress bar ---------- */
.progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-light));
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ---------- header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: 22px 0;
  transition: all 0.4s ease;
}
.site-header.is-scrolled {
  background: rgba(12,12,13,0.92);
  backdrop-filter: blur(6px);
  padding: 10px 0;
  box-shadow: 0 6px 24px rgba(0,0,0,0.2);
}
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-badge {
  display: inline-flex;
  align-items: center;
  background: var(--white);
  border-radius: 40px;
  padding: 6px 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.logo-badge img { height: 34px; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.main-nav a {
  font-size: 0.86rem;
  letter-spacing: 0.05em;
  color: var(--white);
  position: relative;
  padding-bottom: 4px;
  white-space: nowrap;
}
.main-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0%;
  height: 1px;
  background: var(--gold-light);
  transition: width 0.3s ease;
}
.main-nav a:not(.nav-cta):hover::after { width: 100%; }

.nav-cta {
  border: 1px solid var(--gold-light);
  padding: 9px 20px;
  border-radius: 30px;
  color: var(--gold-light) !important;
}
.nav-cta:hover { background: var(--gold-light); color: var(--black) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}
.nav-toggle span {
  width: 18px; height: 1.5px;
  background: var(--white);
  margin: 0 auto;
  transition: 0.3s;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--black);
}
.hero-bg {
  position: absolute; inset: 0;
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 60% 20%;
  transform: scale(1.02);
}
.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(0deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.25) 55%, rgba(0,0,0,0.45) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px 110px;
  width: 100%;
  color: var(--white);
}
.hero-eyebrow {
  font-family: var(--font-sans);
  letter-spacing: 0.28em;
  font-size: 0.72rem;
  color: var(--gold-light);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(2.2rem, 5.4vw, 3.8rem);
  line-height: 1.35;
  font-weight: 600;
  margin-bottom: 22px;
  text-shadow: 0 6px 30px rgba(0,0,0,0.4);
}
.hero-sub {
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  color: rgba(255,255,255,0.86);
  margin-bottom: 40px;
  max-width: 480px;
  line-height: 1.9;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 15px 34px;
  border-radius: 40px;
  font-size: 0.88rem;
  letter-spacing: 0.05em;
  border: 1px solid transparent;
  transition: all 0.35s ease;
}
.btn-gold {
  background: linear-gradient(120deg, var(--gold-deep), var(--gold-light));
  color: var(--black);
  font-weight: 600;
}
.btn-gold:hover { filter: brightness(1.1); transform: translateY(-2px); }
.btn-outline {
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
}
.btn-outline:hover { border-color: var(--gold-light); color: var(--gold-light); }

.scroll-cue {
  position: absolute;
  right: 32px; bottom: 34px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.75);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  writing-mode: vertical-rl;
}
.scroll-cue i {
  display: block;
  width: 1px; height: 46px;
  background: linear-gradient(180deg, var(--gold-light), transparent);
}

/* ---------- section shell ---------- */
.section {
  padding: 130px 28px;
  max-width: var(--container);
  margin: 0 auto;
}
.section-head {
  max-width: 640px;
  margin-bottom: 70px;
}
.section-head.light { color: var(--white); }
.section-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--gold-deep);
  text-transform: uppercase;
  margin-bottom: 18px;
  display: block;
}
.section-head.light .section-eyebrow { color: var(--gold-light); }
.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  line-height: 1.5;
  margin-bottom: 24px;
}
.section-lead {
  color: var(--text-sub);
  font-size: 0.98rem;
  line-height: 2.05;
}
.section-head.light .section-lead { color: rgba(255,255,255,0.7); }

/* ---------- concept ---------- */
.feature-rows { display: flex; flex-direction: column; gap: 100px; margin-bottom: 90px; }
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.feature-row.reverse .feature-media { order: 2; }
.feature-row.reverse .feature-text { order: 1; }
.feature-media {
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: 4px;
}
.feature-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s ease; }
.feature-row:hover .feature-media img { transform: scale(1.05); }
.feature-no {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--gold);
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 14px;
}
.feature-text h3 {
  font-size: 1.4rem;
  margin-bottom: 18px;
  line-height: 1.6;
}
.feature-text p { color: var(--text-sub); font-size: 0.94rem; line-height: 2; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 46px 0;
}
.stat {
  text-align: center;
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.stat:first-child { border-left: none; }
.stat strong {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--black);
}
.stat span { font-size: 0.78rem; color: var(--text-sub); letter-spacing: 0.05em; }

/* ---------- before / after ---------- */
.before-after-section { background: var(--black); max-width: 100%; padding-left: 0; padding-right: 0; }
.before-after-section .section-head { max-width: 640px; margin-left: auto; margin-right: auto; padding: 0 28px; }
.ba-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.ba-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 6px;
  overflow: hidden;
}
.ba-imgs { display: grid; grid-template-columns: 1fr 1fr; }
.ba-imgs figure {
  margin: 0; position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
}
.ba-imgs img { width: 100%; height: 100%; object-fit: cover; }
.ba-imgs figcaption {
  position: absolute;
  left: 8px; bottom: 8px;
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  color: var(--white);
  background: rgba(0,0,0,0.55);
  padding: 3px 9px;
  border-radius: 20px;
}
.ba-label {
  padding: 14px 16px;
  color: var(--gold-light);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* ---------- gallery ---------- */
.gallery-grid {
  columns: 4 220px;
  column-gap: 14px;
}
.gallery-grid figure {
  margin: 0 0 14px;
  break-inside: avoid;
  border-radius: 4px;
  overflow: hidden;
  cursor: zoom-in;
  position: relative;
}
.gallery-grid img {
  width: 100%;
  display: block;
  transition: transform 0.6s ease, filter 0.6s ease;
}
.gallery-grid figure:hover img { transform: scale(1.06); filter: brightness(1.05); }
.gallery-grid figure::after {
  content: "";
  position: absolute; inset: 0;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.06);
}

/* ---------- menu ---------- */
.menu-section { background: var(--black); max-width: 100%; padding-left: 0; padding-right: 0; color: var(--white); }
.menu-section .section-head { max-width: 640px; margin-left: auto; margin-right: auto; padding: 0 28px; }
.menu-tabs {
  max-width: var(--container);
  margin: 0 auto 50px;
  padding: 0 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tab-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.7);
  padding: 11px 22px;
  border-radius: 30px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.3s ease;
}
.tab-btn.is-active, .tab-btn:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  color: var(--black);
}
.menu-panels {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
.menu-panel { display: none; animation: fadeIn 0.5s ease; }
.menu-panel.is-active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.menu-highlight {
  border: 1px solid var(--gold-deep);
  background: linear-gradient(160deg, rgba(185,150,79,0.12), rgba(185,150,79,0.02));
  border-radius: 8px;
  padding: 34px 30px;
  margin-bottom: 40px;
}
.menu-highlight-tag {
  display: inline-block;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--black);
  background: var(--gold-light);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 22px;
}
.price-list--feature li b { color: var(--gold-light); }

.price-list { display: grid; gap: 0; }
.price-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.15);
  font-size: 0.94rem;
}
.price-list li span small { color: rgba(255,255,255,0.5); font-size: 0.78rem; margin-left: 4px; }
.price-list li b { font-family: var(--font-serif); font-weight: 600; white-space: nowrap; }
.menu-note { margin-top: 18px; font-size: 0.8rem; color: rgba(255,255,255,0.5); }

.menu-subgroup { margin-bottom: 40px; }
.menu-subgroup h4 {
  font-family: var(--font-serif);
  color: var(--gold-light);
  margin-bottom: 10px;
  font-size: 1.05rem;
}

/* ---------- interior ---------- */
.interior-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
  height: 560px;
  margin-bottom: 46px;
}
.interior-photo { overflow: hidden; border-radius: 4px; }
.interior-photo.large { grid-row: 1 / 3; }
.interior-photo img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s ease; }
.interior-photo:hover img { transform: scale(1.05); }

.amenity-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.amenity-list li {
  border: 1px solid var(--line);
  padding: 10px 20px;
  border-radius: 30px;
  font-size: 0.82rem;
  color: var(--text-sub);
}

/* ---------- access ---------- */
.access-section { background: var(--black); max-width: 100%; padding-left: 0; padding-right: 0; color: var(--white); }
.access-section .section-head { max-width: 640px; margin: 0 auto 60px; padding: 0 28px; }
.access-wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: start;
}
.info-table div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.info-table dt { color: var(--gold-light); font-size: 0.82rem; letter-spacing: 0.05em; }
.info-table dd { margin: 0; font-size: 0.92rem; color: rgba(255,255,255,0.85); }
.info-table dd small { color: rgba(255,255,255,0.5); font-size: 0.78rem; }
.info-table a:hover { color: var(--gold-light); }

.access-map { border-radius: 6px; overflow: hidden; height: 100%; min-height: 380px; filter: grayscale(0.15) contrast(1.05); }
.access-map iframe { width: 100%; height: 100%; min-height: 380px; border: 0; }

/* ---------- reserve ---------- */
.reserve-section {
  max-width: 100%;
  padding: 130px 28px;
  background:
    radial-gradient(circle at 20% 20%, rgba(185,150,79,0.12), transparent 55%),
    var(--ivory);
  text-align: center;
}
.reserve-inner { max-width: 760px; margin: 0 auto; }
.reserve-inner .section-lead { max-width: 480px; margin: 0 auto 50px; }
.reserve-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.reserve-btn {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 30px 20px;
  border-radius: 10px;
  background: var(--black);
  color: var(--white);
  border: 1px solid transparent;
  transition: all 0.35s ease;
}
.reserve-btn:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,0.18); }
.reserve-btn-label { font-family: var(--font-serif); font-size: 1.02rem; }
.reserve-btn-sub { font-size: 0.76rem; color: rgba(255,255,255,0.55); letter-spacing: 0.03em; }
.reserve-btn--line { border-color: #06C755; }
.reserve-btn--line .reserve-btn-label::before { content: "LINE  "; color: #06C755; }
.reserve-btn--hp { border-color: var(--gold-light); }
.reserve-btn--hp .reserve-btn-label::before { content: "HOT PEPPER Beauty  "; color: var(--gold-light); font-size:0.7em; letter-spacing:0.05em;}
.reserve-btn--tel { border-color: rgba(255,255,255,0.3); }
.reserve-btn--tel .reserve-btn-label::before { content: "TEL  "; color: var(--gold-light); }

/* ---------- footer ---------- */
.site-footer { background: var(--black); color: rgba(255,255,255,0.7); padding: 90px 28px 30px; }
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-logo { height: 44px; margin-bottom: 20px; filter: brightness(1.1); background: var(--white); border-radius: 40px; padding: 6px 14px; display:inline-block; }
.footer-brand p { font-size: 0.85rem; line-height: 1.8; color: rgba(255,255,255,0.55); }
.footer-social { display: flex; gap: 20px; margin-top: 18px; }
.footer-social a { font-size: 0.8rem; letter-spacing: 0.05em; border-bottom: 1px solid rgba(255,255,255,0.3); padding-bottom: 2px; }
.footer-social a:hover { color: var(--gold-light); border-color: var(--gold-light); }

.footer-links h5 { font-size: 0.7rem; letter-spacing: 0.25em; color: var(--gold-light); margin-bottom: 24px; }
.footer-links ul { display: flex; flex-direction: column; gap: 14px; }
.footer-links a { font-size: 0.86rem; color: rgba(255,255,255,0.75); }
.footer-links a:hover { color: var(--gold-light); }

.footer-copy {
  max-width: var(--container);
  margin: 26px auto 0;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.05em;
}

/* ---------- lightbox ---------- */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(6,6,6,0.94);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 40px;
}
.lightbox.is-open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: 4px; box-shadow: 0 30px 80px rgba(0,0,0,0.5); }
.lightbox-close {
  position: absolute; top: 26px; right: 30px;
  background: none; border: none;
  color: var(--white); font-size: 2.4rem;
  line-height: 1; cursor: pointer;
  font-family: var(--font-sans);
}

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s ease, transform 0.9s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ============ responsive ============ */
@media (max-width: 980px) {
  .feature-row { grid-template-columns: 1fr; gap: 26px; }
  .feature-row.reverse .feature-media { order: 1; }
  .feature-row.reverse .feature-text { order: 2; }
  .stat-row { grid-template-columns: repeat(2, 1fr); row-gap: 30px; }
  .stat:nth-child(3) { border-left: none; }
  .ba-grid { grid-template-columns: repeat(2, 1fr); }
  .access-wrap { grid-template-columns: 1fr; }
  .interior-grid { height: auto; grid-template-columns: 1fr 1fr; grid-template-rows: 220px 220px; }
  .interior-photo.large { grid-row: 1 / 2; grid-column: 1 / 3; height: 320px; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 760px) {
  .sp-only { display: inline; }
  .main-nav {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(78vw, 320px);
    background: var(--black);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 28px;
    padding: 40px;
    transform: translateX(100%);
    transition: transform 0.4s ease;
  }
  .main-nav.is-open { transform: translateX(0); }
  .nav-toggle { display: flex; }
  .nav-cta { order: 99; }

  .section { padding: 90px 20px; }
  .section-head { margin-bottom: 46px; }
  .ba-grid { grid-template-columns: 1fr; padding: 0 20px; }
  .before-after-section .section-head,
  .menu-section .section-head,
  .access-section .section-head { padding: 0 20px; }
  .menu-tabs, .menu-panels, .access-wrap { padding: 0 20px; }
  .gallery-grid { columns: 2 160px; }
  .reserve-buttons { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .interior-grid { grid-template-columns: 1fr; grid-template-rows: none; }
  .interior-photo.large { grid-column: auto; height: 260px; }
  .interior-photo { height: 220px; }
}