/* ============================================
   NIB 日本海情報ビジネス専門学校 紹介サイト
   共通スタイルシート
   ============================================ */
:root{
  --navy:#0b1e3a;
  --blue:#2e6bff;
  --sky:#bfe0ff;
  --lime:#e8ff4a;
  --paper:#f4f8fd;
  --white:#ffffff;
  --ink:#13233d;
  --radius:22px;
  --font-jp:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN",sans-serif;
  --font-en:"Space Grotesk","Zen Kaku Gothic New",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-jp);
  color:var(--ink);
  background:var(--paper);
  line-height:1.8;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}

/* ---------- header ---------- */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid #dce7f5;
}
.header-inner{
  max-width:1200px;margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.logo{display:flex;align-items:baseline;gap:10px;font-weight:900}
.logo .mark{
  font-family:var(--font-en);font-size:1.7rem;letter-spacing:-.03em;
  background:linear-gradient(120deg,var(--blue),#7fb2ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.logo .name{font-size:.82rem;color:var(--navy);letter-spacing:.06em}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{
  font-size:.88rem;font-weight:700;padding:9px 15px;border-radius:999px;
  transition:background .2s,color .2s;
}
.nav a:hover{background:var(--sky)}
.nav a.current{background:var(--navy);color:#fff}
.nav a.cta{background:var(--lime);color:var(--navy)}
.nav a.cta:hover{background:#d8f03a}

/* ---------- ticker (signature) ---------- */
.ticker{
  background:var(--navy);color:var(--lime);
  overflow:hidden;white-space:nowrap;
  font-family:var(--font-en);font-weight:700;font-size:.85rem;letter-spacing:.18em;
  padding:8px 0;border-bottom:4px solid var(--lime);
}
.ticker-track{display:inline-block;animation:slide 28s linear infinite}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){
  .ticker-track{animation:none}
  *{transition:none!important}
}

/* ---------- page hero (sub pages) ---------- */
.page-hero{
  background:linear-gradient(135deg,var(--navy) 0%,#12336b 60%,var(--blue) 100%);
  color:#fff;padding:72px 24px 60px;position:relative;overflow:hidden;
}
.page-hero::after{
  content:attr(data-en);
  position:absolute;right:-10px;bottom:-34px;
  font-family:var(--font-en);font-weight:700;font-size:clamp(4rem,14vw,9rem);
  color:rgba(255,255,255,.07);letter-spacing:-.04em;pointer-events:none;
}
.page-hero .inner{max-width:1200px;margin:0 auto;position:relative}
.eyebrow{
  display:inline-block;font-family:var(--font-en);font-size:.8rem;letter-spacing:.3em;
  color:var(--lime);font-weight:700;margin-bottom:12px;
}
.page-hero h1{font-size:clamp(1.9rem,4.5vw,3rem);font-weight:900;letter-spacing:.04em}
.page-hero p{margin-top:14px;max-width:640px;color:#d7e6ff}

/* ---------- layout ---------- */
.section{max-width:1200px;margin:0 auto;padding:80px 24px}
.section-head{margin-bottom:44px}
.section-head .eyebrow{color:var(--blue)}
.section-head h2{font-size:clamp(1.6rem,3.4vw,2.4rem);font-weight:900;color:var(--navy);letter-spacing:.04em}
.section-head p{margin-top:10px;color:#4a5c78}

/* ---------- cards ---------- */
.grid{display:grid;gap:28px}
.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  box-shadow:0 6px 24px rgba(16,42,90,.08);
  transition:transform .25s,box-shadow .25s;
}
.card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(16,42,90,.14)}
.card .thumb{aspect-ratio:16/10;object-fit:cover;width:100%}
.card .body{padding:24px 26px 28px}
.card h3{font-size:1.15rem;font-weight:900;color:var(--navy);margin-bottom:8px}
.card p{font-size:.94rem;color:#4a5c78}
.chip{
  display:inline-block;background:var(--sky);color:var(--navy);
  font-size:.72rem;font-weight:700;letter-spacing:.08em;
  padding:4px 12px;border-radius:999px;margin-bottom:12px;
}
.chip.lime{background:var(--lime)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--blue);color:#fff;font-weight:700;
  padding:14px 30px;border-radius:999px;font-size:.95rem;
  transition:transform .2s,background .2s;
}
.btn:hover{background:#1e55e0;transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--navy);border:2px solid var(--navy)}
.btn.ghost:hover{background:var(--navy);color:#fff}
.btn.lime{background:var(--lime);color:var(--navy)}
.btn.lime:hover{background:#d8f03a}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{border-radius:var(--radius);box-shadow:0 10px 30px rgba(16,42,90,.15)}
@media(max-width:820px){.split{grid-template-columns:1fr}}

/* ---------- table ---------- */
.info-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 24px rgba(16,42,90,.08)}
.info-table th,.info-table td{padding:18px 22px;text-align:left;border-bottom:1px solid #e6eef8;font-size:.94rem}
.info-table th{width:32%;background:var(--paper);color:var(--navy);font-weight:900}
.info-table tr:last-child th,.info-table tr:last-child td{border-bottom:none}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--blue),#12336b);
  color:#fff;text-align:center;padding:72px 24px;
  position:relative;overflow:hidden;
}
.cta-band h2{font-size:clamp(1.5rem,3.4vw,2.3rem);font-weight:900;margin-bottom:12px}
.cta-band p{color:#d7e6ff;margin-bottom:28px}

/* ---------- footer ---------- */
.footer{background:var(--navy);color:#9db4d8;padding:56px 24px 32px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer .logo .name{color:#fff}
.footer-nav{display:flex;gap:20px;flex-wrap:wrap;margin:22px 0;font-size:.88rem}
.footer-nav a:hover{color:#fff}
.copy{font-size:.78rem;border-top:1px solid #21365c;padding-top:20px;margin-top:8px}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

@media(max-width:640px){
  .header-inner{flex-direction:column;align-items:flex-start}
  .section{padding:56px 20px}
}