/* ============================================================
   株式会社シャーク (SHARK, K.K.) コーポレートサイト
   shared stylesheet
   ============================================================ */
:root {
  --navy: #0a2540;
  --navy-2: #103a66;
  --blue: #1063a8;
  --accent: #2aa9e0;
  --gold: #c9a25b;
  --ink: #1a2330;
  --muted: #6b7787;
  --line: #e3e8ef;
  --bg: #ffffff;
  --bg-soft: #f5f8fc;
  --max: 1080px;
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
               "Hiragino Sans", "Yu Gothic", "Noto Sans JP", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  text-size-adjust: 100%;
}
a { color: var(--blue); text-decoration: none; transition: opacity .2s; }
a:hover { opacity: .75; }
img { max-width: 100%; height: auto; display: block; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.section { padding: 84px 0; }
.section--soft { background: var(--bg-soft); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head .en {
  display: block; font-size: 12px; letter-spacing: .34em; text-transform: uppercase;
  color: var(--accent); font-weight: 700; margin-bottom: 10px;
}
.section-head h2 { font-size: clamp(24px, 4vw, 32px); color: var(--navy); font-weight: 800; letter-spacing: .02em; }
.section-head .lead { margin-top: 16px; color: var(--muted); font-size: 15px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92); backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; color: var(--navy); letter-spacing: .02em; }
.brand small { display: block; font-size: 10px; letter-spacing: .18em; color: var(--muted); font-weight: 600; }
.nav { display: flex; gap: 22px; }
.nav a { color: var(--ink); font-size: 13.5px; font-weight: 600; }
.nav a:hover { color: var(--blue); opacity: 1; }

/* ---------- Hero ---------- */
.hero { position: relative; background: linear-gradient(135deg, #0a2540 0%, #103a66 55%, #1063a8 100%); color: #fff; overflow: hidden; }
.hero::after { content: ""; position: absolute; right: -90px; bottom: -140px; width: 480px; height: 480px; background: radial-gradient(circle, rgba(42,169,224,.35) 0%, rgba(42,169,224,0) 70%); pointer-events: none; }
.hero .container { position: relative; z-index: 1; padding: 104px 24px 112px; }
.hero .eyebrow { font-size: 13px; letter-spacing: .34em; text-transform: uppercase; color: var(--accent); font-weight: 700; margin-bottom: 20px; }
.hero h1 { font-size: clamp(28px, 5.4vw, 50px); line-height: 1.3; font-weight: 800; letter-spacing: .02em; }
.hero .tagline { margin-top: 22px; font-size: clamp(15px, 2.3vw, 19px); color: #cdddf0; max-width: 680px; }
.hero .cta { margin-top: 36px; display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--navy); font-weight: 700; padding: 13px 26px; border-radius: 999px; font-size: 14px; }
.hero .cta:hover { opacity: 1; box-shadow: 0 10px 24px rgba(0,0,0,.18); }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.about-grid p + p { margin-top: 18px; }
.about-stats { display: grid; gap: 16px; }
.stat-card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.stat-card .k { font-size: 12px; color: var(--accent); font-weight: 700; letter-spacing: .1em; }
.stat-card .v { font-size: 20px; font-weight: 800; color: var(--navy); margin-top: 4px; }

/* ---------- Services ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(10,37,64,.08); }
.card .num { font-size: 12px; font-weight: 800; color: var(--accent); letter-spacing: .12em; }
.card h3 { font-size: 18px; color: var(--navy); margin: 10px 0 12px; font-weight: 800; }
.card p { font-size: 14px; color: var(--ink); }

/* ---------- Stores ---------- */
.store { display: grid; grid-template-columns: 1fr 1.2fr; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.store__visual { background: linear-gradient(140deg, #0a2540, #1063a8); color: #fff; padding: 40px 34px; display: flex; flex-direction: column; justify-content: center; }
.store__visual .badge { font-size: 11px; letter-spacing: .2em; color: var(--accent); font-weight: 700; }
.store__visual h3 { font-size: 28px; font-weight: 800; margin: 8px 0 6px; letter-spacing: .04em; }
.store__visual .sub { color: #cdddf0; font-size: 14px; }
.store__body { padding: 34px; }
.store__body dl { display: grid; grid-template-columns: 96px 1fr; row-gap: 12px; column-gap: 16px; font-size: 14px; }
.store__body dt { color: var(--navy); font-weight: 700; }
.store__body dd { color: var(--ink); }
.store__body .store-link { display: inline-block; margin-top: 22px; font-weight: 700; color: var(--blue); }

/* ---------- Company table ---------- */
.info { max-width: 760px; margin: 0 auto; border-top: 1px solid var(--line); }
.info-row { display: flex; gap: 24px; padding: 20px 4px; border-bottom: 1px solid var(--line); }
.info-row dt { flex: 0 0 180px; font-weight: 700; color: var(--navy); }
.info-row dd { flex: 1; color: var(--ink); }
.biz-list { margin: 0 0 0 1.2em; padding: 0; }
.biz-list li { margin: 4px 0; }

/* ---------- Contact ---------- */
.contact-box { max-width: 720px; margin: 0 auto; text-align: center; }
.contact-box .addr { font-size: 16px; font-weight: 700; color: var(--navy); margin: 8px 0 4px; }
.contact-box .note { color: var(--muted); font-size: 14px; }
.contact-box .mail { display: inline-block; margin-top: 14px; font-size: clamp(17px, 3vw, 20px); font-weight: 800; color: var(--blue); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: #aebfd2; padding: 40px 24px 28px; }
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; align-items: center; }
.site-footer .brand-f { color: #fff; font-weight: 800; letter-spacing: .04em; }
.site-footer .brand-f small { display: block; font-weight: 600; font-size: 11px; color: #8fa6bf; letter-spacing: .14em; }
.site-footer .f-links { display: flex; gap: 18px; font-size: 13px; }
.site-footer .f-links a { color: #cdddf0; }
.site-footer .copy { width: 100%; text-align: center; font-size: 12px; color: #7e92ab; border-top: 1px solid rgba(255,255,255,.1); padding-top: 18px; margin-top: 8px; }

/* ---------- Legal page ---------- */
.legal { max-width: 820px; margin: 0 auto; }
.legal h2 { font-size: 22px; color: var(--navy); margin: 34px 0 12px; font-weight: 800; }
.legal h2:first-child { margin-top: 0; }
.legal p, .legal li { font-size: 14.5px; color: var(--ink); }
.legal ul { margin: 8px 0 8px 1.3em; }
.legal li { margin: 4px 0; }
.page-hero { background: linear-gradient(135deg, #0a2540, #1063a8); color: #fff; padding: 64px 24px 56px; }
.page-hero .en { font-size: 12px; letter-spacing: .3em; color: var(--accent); font-weight: 700; }
.page-hero h1 { font-size: clamp(24px, 5vw, 36px); font-weight: 800; margin-top: 8px; }

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .about-grid { grid-template-columns: 1fr; gap: 30px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .store { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 60px 0; }
  .hero .container { padding: 76px 22px 84px; }
  .nav { display: none; }
  .cards { grid-template-columns: 1fr; }
  .info-row { flex-direction: column; gap: 4px; padding: 16px 2px; }
  .info-row dt { flex: none; }
  .store__body dl { grid-template-columns: 84px 1fr; }
  .site-footer .container { flex-direction: column; text-align: center; }
}