/* ================================
   案C: ミニマル氷上 ─ 白と黒、朱のひと差し
================================= */
:root {
  --white: #f7f6f3;
  --black: #0a0a0a;
  --grey: #8a8a86;
  --vermillion: #b3271e;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.9;
}

.serif { font-family: "Cormorant Garamond", "Shippori Mincho", serif; }
.mincho { font-family: "Shippori Mincho", serif; }

/* ===== ヘッダー ===== */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px clamp(24px, 5vw, 64px);
  mix-blend-mode: difference;
  color: #fff;
}

.top-nav .brand {
  font-family: "Cormorant Garamond", serif;
  font-size: 16px;
  letter-spacing: 0.3em;
}

.top-nav nav {
  display: flex;
  gap: clamp(16px, 3vw, 36px);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.top-nav nav a { color: inherit; text-decoration: none; opacity: 0.85; }
.top-nav nav a:hover { opacity: 1; }

/* ===== セクション進行インデックス ===== */
.progress-index {
  position: fixed;
  right: clamp(18px, 4vw, 40px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  font-family: "Cormorant Garamond", serif;
  font-size: 12px;
  letter-spacing: 0.1em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--grey);
  mix-blend-mode: difference;
}

.progress-index .current {
  font-size: 22px;
  color: #fff;
}

.progress-index .bar {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.25);
  position: relative;
  overflow: hidden;
}

.progress-index .bar::after {
  content: "";
  position: absolute;
  left: 0; top: 0; right: 0;
  height: var(--p, 0%);
  background: #fff;
  transition: height 0.3s ease;
}

/* ===== ヒーロー ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background: var(--black);
  color: var(--white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url("images/sashimi.jpg") center 38%/cover no-repeat;
  opacity: 0.34;
  transform: scale(1.06);
}

.hero-content { position: relative; z-index: 2; }

.hero-content .eyebrow {
  display: block;
  font-size: 11px;
  letter-spacing: 0.4em;
  opacity: 0.75;
  margin-bottom: 26px;
}

.hero-content h1 {
  font-family: "Cormorant Garamond", serif;
  font-weight: 500;
  font-size: clamp(60px, 13vw, 160px);
  letter-spacing: 0.06em;
  line-height: 1;
}

.hero-content .jp-name {
  display: block;
  font-family: "Shippori Mincho", serif;
  font-size: clamp(14px, 2vw, 18px);
  letter-spacing: 0.5em;
  margin-top: 22px;
  opacity: 0.85;
}

.hero-content .rule {
  width: 1px;
  height: 70px;
  background: rgba(247,246,243,0.4);
  margin: 40px auto 0;
}

/* ===== セクション共通 ===== */
.zone {
  min-height: 100vh;
  padding: 160px clamp(24px, 6vw, 100px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.zone.invert { background: var(--black); color: var(--white); }

.zone-inner { max-width: 1040px; margin: 0 auto; width: 100%; }

.kicker {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--grey);
  margin-bottom: 30px;
}

.kicker .num { font-family: "Cormorant Garamond", serif; font-size: 16px; color: var(--vermillion); }

.rule-draw {
  width: 100%;
  height: 1px;
  background: currentColor;
  opacity: 0.15;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s cubic-bezier(.7,0,.15,1);
  margin: 34px 0 46px;
}

.zone.in-view .rule-draw { transform: scaleX(1); }

/* ===== 本日のおすすめ ===== */
.pick-minimal {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(24px, 6vw, 64px);
  align-items: end;
}

.pick-minimal .pick-price {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(64px, 12vw, 140px);
  line-height: 0.9;
  color: var(--vermillion);
  font-weight: 500;
}

.pick-minimal .pick-price small {
  font-size: 0.22em;
  display: block;
  letter-spacing: 0.1em;
  margin-top: 10px;
  color: var(--white);
  opacity: 0.7;
}

.pick-detail .pick-date { font-size: 11px; letter-spacing: 0.2em; opacity: 0.6; margin-bottom: 14px; }
.pick-detail .pick-name { font-family: "Shippori Mincho", serif; font-size: clamp(24px, 4vw, 34px); margin-bottom: 14px; }
.pick-detail .pick-desc { font-size: 13.5px; opacity: 0.8; max-width: 46ch; }
.pick-detail .pick-note { margin-top: 20px; font-size: 11px; opacity: 0.5; }

/* ===== お店について ===== */
.about-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(30px, 6vw, 80px);
  align-items: center;
}

.about-photo-frame {
  aspect-ratio: 3 / 4;
  overflow: hidden;
}

.about-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 78% 45%;
  transform: scale(1.08);
  transition: transform 1.4s cubic-bezier(.2,.7,.2,1);
}

.zone.in-view .about-photo-frame img { transform: scale(1); }

.about-copy h2 {
  font-family: "Shippori Mincho", serif;
  font-size: clamp(24px, 3.5vw, 34px);
  line-height: 1.8;
  margin-bottom: 26px;
}

.about-copy p { font-size: 13.5px; opacity: 0.75; margin-bottom: 16px; max-width: 46ch; }

.fact-strip {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  font-size: 12px;
}

.fact-strip div { display: flex; flex-direction: column; gap: 6px; }
.fact-strip dt { opacity: 0.5; letter-spacing: 0.1em; }
.fact-strip dd { font-size: 14px; }

/* ===== 商品 ===== */
.product-list {
  display: grid;
  gap: 0;
}

.product-line {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  align-items: baseline;
  gap: 20px;
  padding: 30px 0;
  border-bottom: 1px solid rgba(10,10,10,0.12);
}

.product-line .serif { font-size: 20px; color: var(--vermillion); }
.product-line h3 { font-size: 22px; font-weight: 500; }
.product-line p { font-size: 12.5px; opacity: 0.6; }

/* ===== こだわり(全面写真) ===== */
.philosophy {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  overflow: hidden;
}

.philosophy-bg {
  position: absolute;
  inset: 0;
  background: url("images/water-ripple.jpg") center/cover no-repeat;
  opacity: 0.5;
  transform: scale(1.1);
  transition: transform 1.8s ease;
}

.zone.in-view .philosophy-bg { transform: scale(1); }

.philosophy::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
}

.philosophy-inner { position: relative; z-index: 2; max-width: 720px; }

.philosophy-inner h2 {
  font-family: "Shippori Mincho", serif;
  font-size: clamp(24px, 4.5vw, 42px);
  line-height: 1.9;
}

.philosophy-inner .lead {
  margin-top: 26px;
  font-size: 13px;
  opacity: 0.85;
}

/* ===== アクセス ===== */
.access-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 5vw, 64px);
}

.info-row { padding: 20px 0; border-bottom: 1px solid rgba(247,246,243,0.15); }
.info-row dt { font-size: 11px; letter-spacing: 0.15em; opacity: 0.55; margin-bottom: 8px; }
.info-row dd { font-size: 16px; }
.info-row .caveat { font-size: 11px; opacity: 0.5; margin-top: 4px; }

.map-embed { min-height: 260px; filter: grayscale(1) contrast(1.05); }
.map-embed iframe { width: 100%; height: 100%; min-height: 260px; border: 0; }

/* ===== フッター ===== */
footer {
  padding: 56px clamp(24px, 6vw, 100px) 40px;
  text-align: center;
  font-size: 11px;
  opacity: 0.55;
  background: var(--black);
  color: var(--white);
}

/* ===== reveal ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 1s ease, transform 1s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }

/* ===== レスポンシブ ===== */
@media (max-width: 780px) {
  .about-layout, .access-layout, .pick-minimal { grid-template-columns: 1fr; }
  .product-line { grid-template-columns: 40px 1fr; }
  .product-line p { grid-column: 1 / -1; }
  .top-nav nav, .progress-index { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal, .rule-draw, .about-photo-frame img, .philosophy-bg { transition: none !important; opacity: 1 !important; transform: none !important; }
}