/* まぐろ本舗 — site styles */
:root {
  --navy: #0F2350;
  --navy-deep: #0A1838;
  --red: #C8161D;
  --red-soft: #FF6B6B;
  --cream: #F7F3EA;
  --paper: #FFFDF8;
  --ink: #1E2433;
  --muted: #5A6478;
  --line: #E4DED1;
  --gold: #C9A96E;
  --serif: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  -webkit-text-size-adjust: 100%;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 800; line-height: 1.4; margin: 0; }
p { margin: 0; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15, 35, 80, 0.96);
  backdrop-filter: blur(6px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.header-logo img { width: 150px; height: auto; }
.header-nav { display: flex; gap: 24px; }
.header-nav a { color: #fff; text-decoration: none; font-size: 14px; font-weight: 500; letter-spacing: 0.08em; }
.header-nav a:hover { color: var(--red-soft); }

/* Language switcher */
.header-right { display: flex; align-items: center; gap: 20px; }
.lang-switch { position: relative; color: #fff; font-size: 13px; }
.lang-switch summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 6px; padding: 6px 10px; border: 1px solid rgba(255,255,255,0.45); border-radius: 999px; font-weight: 700; white-space: nowrap; }
.lang-switch summary::-webkit-details-marker { display: none; }
.lang-switch summary::after { content: ""; width: 6px; height: 6px; border-right: 1.5px solid #fff; border-bottom: 1.5px solid #fff; transform: rotate(45deg) translateY(-2px); margin-left: 2px; }
.lang-switch[open] summary { background: rgba(255,255,255,0.12); }
.lang-switch ul { position: absolute; right: 0; top: calc(100% + 8px); margin: 0; padding: 6px 0; list-style: none; background: #fff; min-width: 150px; box-shadow: 0 8px 24px rgba(10,24,56,0.25); border-radius: 6px; z-index: 20; }
.lang-switch li a { display: block; padding: 9px 16px; color: var(--ink); text-decoration: none; font-size: 14px; }
.lang-switch li a:hover { background: var(--cream); }
.lang-switch li a[aria-current="page"] { color: var(--red); font-weight: 700; }

/* Per-language fonts */
:lang(zh-Hans) { --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif; --serif: "Noto Serif SC", "Shippori Mincho B1", serif; }
:lang(zh-Hant) { --sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif; --serif: "Noto Serif TC", "Shippori Mincho B1", serif; }
:lang(ko) { --sans: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif; --serif: "Noto Serif KR", "Shippori Mincho B1", serif; }
:lang(ja) { --sans: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif; --serif: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif; }
:lang(ko) .hero-copy, :lang(ko) h3 { word-break: keep-all; }
.ja-addr { display: inline-block; margin-top: 4px; font-size: 13px; color: var(--muted); }
.menu-ja { letter-spacing: 0.06em; }
html:not([lang="ja"]) .section-title { letter-spacing: 0.04em; }

/* Hero */
.hero {
  position: relative; overflow: hidden; text-align: center; color: #fff;
  min-height: min(84vh, 760px); display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(ellipse at 50% 120%, rgba(200,22,29,0.18), transparent 60%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
}
.swim { position: absolute; left: 0; width: clamp(200px, 26vw, 420px); pointer-events: none; will-change: transform; }
.swim--ltr { bottom: 8%; animation: swim-ltr 34s linear infinite; animation-delay: -12s; }
.swim--rtl { top: 11%; animation: swim-rtl 42s linear infinite; animation-delay: -26s; }
.hero-tuna { display: block; width: 100%; height: auto; opacity: 0.12; animation: bob 3.2s ease-in-out infinite; }
.swim--rtl .hero-tuna { animation-duration: 3.8s; animation-delay: -1.4s; }
/* extra school: smaller, fainter fish further away */
.swim--3 { bottom: auto; top: 38%; width: clamp(110px, 12vw, 190px); animation-duration: 50s; animation-delay: -5s; }
.swim--4 { top: auto; bottom: 30%; width: clamp(90px, 10vw, 160px); animation-duration: 58s; animation-delay: -40s; }
.swim--5 { bottom: auto; top: 3%; width: clamp(80px, 8vw, 130px); animation-duration: 64s; animation-delay: -30s; }
.swim--3 .hero-tuna, .swim--4 .hero-tuna, .swim--5 .hero-tuna { opacity: 0.08; }
.swim--4 .hero-tuna { animation-duration: 2.9s; }
.swim--5 .hero-tuna { animation-duration: 3.5s; animation-delay: -0.8s; }
.swim--6 { top: 22%; bottom: auto; width: clamp(70px, 7vw, 120px); animation-duration: 54s; animation-delay: -18s; }
.swim--7 { top: 60%; bottom: auto; width: clamp(60px, 6vw, 100px); animation-duration: 47s; animation-delay: -33s; }
.swim--8 { top: auto; bottom: 14%; width: clamp(75px, 7.5vw, 125px); animation-duration: 61s; animation-delay: -8s; }
.swim--9 { top: 50%; bottom: auto; width: clamp(55px, 5.5vw, 90px); animation-duration: 69s; animation-delay: -50s; }
.swim--6 .hero-tuna, .swim--7 .hero-tuna, .swim--8 .hero-tuna, .swim--9 .hero-tuna { opacity: 0.07; }
.swim--6 .hero-tuna { animation-duration: 2.7s; animation-delay: -0.5s; }
.swim--7 .hero-tuna { animation-duration: 3.3s; animation-delay: -2s; }
.swim--8 .hero-tuna { animation-duration: 3.0s; animation-delay: -1.1s; }
.swim--9 .hero-tuna { animation-duration: 2.5s; animation-delay: -0.3s; }
@keyframes swim-ltr { from { transform: translateX(-110%); } to { transform: translateX(100vw); } }
@keyframes swim-rtl { from { transform: translateX(100vw); } to { transform: translateX(-110%); } }
@keyframes bob {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-8px) rotate(-1.5deg); }
  75% { transform: translateY(8px) rotate(1.5deg); }
}
@media (prefers-reduced-motion: reduce) {
  .swim, .hero-tuna { animation: none; }
  .swim--ltr { left: -3vw; }
  .swim--rtl { left: auto; right: -3vw; }
}
.hero-text { position: relative; padding: 80px 16px; display: flex; flex-direction: column; align-items: center; }
.hero-badge { background: var(--red); color: #fff; font-size: 13px; font-weight: 700; letter-spacing: 0.1em; padding: 6px 14px; margin-bottom: 36px; }
.hero-logo { margin: 0; }
.hero-logo img { width: clamp(260px, 36vw, 520px); height: auto; margin: 0 auto; }
.hero-copy { font-family: var(--serif); font-weight: 800; font-size: clamp(28px, 3.6vw, 48px); letter-spacing: 0.1em; line-height: 1.5; margin-top: 40px; }
.hero-copy span { display: inline-block; white-space: nowrap; }
.hero-en { font-family: var(--serif); font-size: clamp(12px, 1.2vw, 15px); letter-spacing: 0.16em; color: #F2D6D6; margin-top: 14px; text-transform: uppercase; }
.hero-sub { margin-top: 28px; font-size: 15px; color: #DCE2EE; }
.hero-btn { margin-top: 36px; display: inline-block; color: #fff; text-decoration: none; border: 1.5px solid rgba(255,255,255,0.7); padding: 12px 36px; font-weight: 700; letter-spacing: 0.12em; font-size: 14px; transition: background .2s, color .2s; }
.hero-btn:hover { background: #fff; color: var(--navy); }

/* Sections */
.section { padding: 96px 0; }
.eyebrow { font-family: var(--serif); color: var(--red); font-size: 13px; letter-spacing: 0.24em; font-weight: 600; }
.section-title { font-size: clamp(26px, 3.4vw, 36px); color: var(--navy); margin: 6px 0 48px; letter-spacing: 0.08em; }

/* Concept */
.concept { background: var(--paper); }
.concept-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.concept-item { border-top: 2px solid var(--navy); padding-top: 24px; }
.concept-img { width: 100%; height: auto; aspect-ratio: 8 / 5; display: block; margin-bottom: 20px; border-radius: 6px; background: var(--cream); }
.concept-no { font-family: var(--serif); font-size: 32px; color: var(--red); font-weight: 800; }
.concept-item h3 { font-size: 21px; color: var(--navy); margin: 6px 0 12px; }
.concept-item p { color: var(--muted); font-size: 15px; }

/* Menu */
.menu { background: var(--cream); }
.menu-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.menu-card { background: #fff; border: 1px solid var(--line); display: flex; flex-direction: column; }
.menu-card img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }
.menu-card--feature { grid-column: 1 / -1; display: grid; grid-template-columns: 1.3fr 1fr; }
.menu-card--feature img { aspect-ratio: auto; height: 100%; }
.menu-card--feature .menu-body { align-self: center; padding: 40px; }
.menu-card--feature h3 { font-size: 30px; }
.menu-body { padding: 24px 24px 28px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.menu-label { display: inline-block; align-self: flex-start; background: var(--red); color: #fff; font-size: 12px; font-weight: 700; letter-spacing: 0.12em; padding: 3px 12px; }
.menu-body h3 { font-size: 22px; color: var(--navy); }
.menu-en { font-family: var(--serif); font-size: 13px; color: var(--muted); letter-spacing: 0.04em; }
.menu-desc { font-size: 15px; margin-top: 4px; }
.menu-label--limited { background: var(--navy); }
.price-list { list-style: none; margin: auto 0 0; padding: 10px 0 0; }
.price-list li { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px dotted var(--line); padding: 4px 0; font-size: 15px; }
.price-list li span:last-child { font-family: var(--serif); font-weight: 800; font-size: 20px; color: var(--red); }
.price-list small { color: var(--muted); font-size: 12px; margin-left: 4px; }
.menu-price { font-family: var(--serif); font-size: 22px; font-weight: 800; color: var(--red); margin-top: auto; padding-top: 10px; }

.set-box { margin-top: 28px; background: var(--navy); color: #fff; display: grid; grid-template-columns: 1fr 1fr; align-items: center; }
.set-box img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.set-box > div { padding: 36px 40px; }
.set-box h3 { font-size: 24px; }
.set-box .menu-en { color: #B9C3D8; margin-bottom: 12px; }
.set-box .menu-price { color: var(--red-soft); }
.note { margin-top: 24px; font-size: 13px; color: var(--muted); }

/* Gallery */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); }
.gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }

/* Access */
.access-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.info { display: grid; grid-template-columns: 7em 1fr; margin: 0; border-top: 1px solid var(--line); }
.info dt, .info dd { padding: 14px 0; border-bottom: 1px solid var(--line); margin: 0; }
.info dt { font-weight: 700; color: var(--navy); font-size: 14px; }
.info dd { font-size: 15px; }
.info a { color: var(--navy); font-weight: 700; }
.map iframe { width: 100%; aspect-ratio: 4 / 3; border: 0; display: block; background: var(--cream); }
.btn { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; font-weight: 700; padding: 14px 28px; letter-spacing: 0.06em; font-size: 15px; transition: opacity .2s; }
.btn:hover { opacity: .85; }
.btn-outline { border: 1.5px solid var(--navy); color: var(--navy); margin-top: 16px; }

/* English */
.english { background: var(--navy); color: #fff; }
.english .section-title { color: #fff; margin-bottom: 24px; }
.english .eyebrow { color: var(--red-soft); }
.english-inner { max-width: 820px; }
.english-lead { font-size: 18px; line-height: 1.8; margin-bottom: 32px; }
.english-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,0.2); }
.english-list li { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.2); display: grid; grid-template-columns: 9em 1fr; gap: 12px; }
.english-list span { font-family: var(--serif); color: var(--gold); letter-spacing: 0.08em; }

/* Follow */
.follow { text-align: center; }
.follow .section-title { margin-bottom: 16px; }
.follow-lead { color: var(--muted); margin-bottom: 32px; }
.follow-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-sns { color: #fff; min-width: 220px; border-radius: 999px; }
.btn-ig { background: linear-gradient(45deg, #F58529, #DD2A7B 50%, #8134AF); }
.btn-line { background: #06C755; }
.btn-fb { background: #1877F2; }

/* Footer */
.site-footer { background: var(--navy-deep); color: #C9D1E2; padding: 56px 0 32px; text-align: center; font-size: 14px; }
.footer-mark { width: 84px; margin: 0 auto 12px; background: #fff; border-radius: 50%; padding: 8px; }
.footer-name { font-family: var(--serif); font-size: 20px; color: #fff; margin-bottom: 8px; }
.site-footer a { color: #fff; }
.footer-company { margin-top: 12px; }
.copyright { margin-top: 24px; color: #7F8BA6; }

/* Responsive */
@media (max-width: 860px) {
  .header-nav { gap: 14px; }
  .header-nav a { font-size: 12px; letter-spacing: 0.02em; }
  .header-logo img { width: 112px; }
  .section { padding: 72px 0; }
  .section-title { margin-bottom: 32px; }
  .concept-grid, .menu-grid, .access-grid, .set-box { grid-template-columns: 1fr; }
  .menu-card--feature { grid-template-columns: 1fr; }
  .menu-card--feature img { aspect-ratio: 3 / 2; height: auto; }
  .menu-card--feature .menu-body { padding: 24px 24px 28px; }
  .menu-card--feature h3 { font-size: 24px; }
  .set-box > div { padding: 28px 24px; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .gallery img:last-child { display: none; }
  .hero { min-height: 0; }
  .hero-text { padding: 64px 16px 72px; }
  .hero-sub span { display: block; }
  .hero-sub .sep { display: none; }
  .swim { width: 46vw; }
  .hero-tuna { opacity: 0.1; }
  .swim--ltr { bottom: 3%; }
  .swim--rtl { top: 5%; }
  .swim--3 { width: 26vw; top: 40%; }
  .swim--4 { width: 22vw; bottom: 26%; }
  .swim--5 { width: 18vw; top: 2%; }
  .swim--6 { width: 16vw; top: 22%; }
  .swim--7 { width: 14vw; top: 62%; }
  .swim--8 { width: 17vw; bottom: 12%; }
  .swim--9 { width: 12vw; top: 50%; }
  .english-list li { grid-template-columns: 1fr; gap: 2px; }
}
@media (max-width: 560px) {
  .header-nav .nav-concept { display: none; }
}
@media (max-width: 420px) {
  .header-nav { display: none; }
  .header-logo img { width: 120px; }
}
.hero-badge span { white-space: nowrap; }
html[lang="en"] .eyebrow { display: none; }

/* ---- 2026-10-18 marketing additions ---- */
.hero-info { margin-top: 10px; font-size: 15px; font-weight: 700; color: #fff; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); padding: 8px 16px; border-radius: 999px; }
.hero-btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 32px; }
.hero-btns .hero-btn { margin-top: 0; }
.hero-btn--ghost { border-color: rgba(255,255,255,0.35); color: #DCE2EE; font-weight: 500; }
.section-lead { color: var(--muted); font-size: 15px; margin: -28px 0 40px; max-width: 760px; }
.set-chip { display: inline-block; vertical-align: middle; font-family: var(--sans); font-size: 12px; font-weight: 700; color: var(--navy); background: var(--cream); border: 1px solid var(--line); padding: 2px 10px; border-radius: 999px; margin-left: 6px; letter-spacing: 0.02em; }
.set-chip-row { margin-top: 10px; }
.set-chip-row .set-chip { margin-left: 0; }
.price-list li.pick { background: #FFF6F0; margin: 0 -8px; padding: 4px 8px; border-radius: 4px; }
.pick-tag { font-style: normal; font-size: 11px; font-weight: 700; color: #fff; background: var(--red); padding: 1px 8px; border-radius: 999px; margin-left: 6px; vertical-align: middle; }

/* FAQ */
.faq { background: var(--cream); }
.faq-inner { max-width: 860px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 6px; margin-bottom: 12px; }
.faq-item summary { cursor: pointer; list-style: none; padding: 16px 48px 16px 20px; font-weight: 700; color: var(--navy); position: relative; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "Q"; font-family: var(--serif); color: var(--red); margin-right: 10px; }
.faq-item summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--muted); }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { margin: 0; padding: 0 20px 18px 42px; color: var(--ink); font-size: 15px; }
.faq-item a, .info small a { color: var(--navy); font-weight: 700; }
.info small { color: var(--muted); }

/* Mobile action bar */
.action-bar { display: none; }
@media (max-width: 860px) {
  .action-bar { display: grid; grid-template-columns: 1fr 1fr 1fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
    background: rgba(15,35,80,0.97); backdrop-filter: blur(6px); border-top: 1px solid rgba(255,255,255,0.15);
    padding-bottom: env(safe-area-inset-bottom); }
  .action-bar a { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 8px 4px 9px; color: #fff; text-decoration: none; font-size: 12px; font-weight: 700; }
  .action-bar a + a { border-left: 1px solid rgba(255,255,255,0.12); }
  .action-bar svg { width: 22px; height: 22px; fill: currentColor; }
  .action-bar .action-line svg { fill: #06C755; }
  body { padding-bottom: calc(62px + env(safe-area-inset-bottom)); }
  .section-lead { margin: -16px 0 28px; }
  .hero-info { font-size: 13px; border-radius: 12px; }
  .hero-info span { display: block; }
  .hero-info .sep { display: none; }
}

/* 404 */
.page-404 .nf { padding: 64px 0; display: grid; gap: 28px; }
.page-404 .nf h2 { font-size: 22px; color: var(--navy); }
.page-404 .nf p { color: var(--muted); margin-top: 6px; }
.page-404 .nf-links { display: flex; gap: 12px; flex-wrap: wrap; }
.page-404 .nf-links .btn { margin-top: 8px; }