/* ボリショイサーカス資料館 — heritage archive theme
   Palette: crimson / midnight navy / antique gold on warm paper.
   Content is visible with CSS alone — entrance motion is pure-CSS, never JS-gated. */

:root{
  --crimson:#B01722;
  --crimson-dark:#7e0f18;
  --navy:#0E1B3A;
  --navy-2:#16264a;
  --gold:#C8A24B;
  --gold-soft:#dcc286;
  --paper:#faf6ef;
  --paper-2:#f2eae0;
  --card:#ffffff;
  --ink:#211a17;
  --muted:#6b625b;
  --line:#e6ddce;
  --maxw:1120px;
  --shadow:0 12px 40px rgba(14,27,58,.10);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.9;
  font-size:16.5px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--crimson);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(18px,4vw,40px)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:linear-gradient(180deg,var(--navy),var(--navy-2));
  border-bottom:3px solid var(--gold);
  box-shadow:0 4px 18px rgba(0,0,0,.18);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand:hover{text-decoration:none}
.brand-mark{
  color:var(--navy);background:var(--gold);
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;font-size:20px;flex:none;
  box-shadow:0 0 0 4px rgba(200,162,75,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-family:"Noto Serif JP",serif;font-weight:700;font-size:1.12rem;letter-spacing:.02em;color:#fff}
.brand-sub{font-size:.7rem;color:var(--gold-soft);letter-spacing:.04em}
.site-nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.site-nav a{
  display:block;color:#eef1f7;padding:8px 12px;border-radius:7px;
  font-size:.9rem;font-weight:500;transition:background .18s,color .18s;
}
.site-nav a:hover{background:rgba(255,255,255,.10);text-decoration:none;color:#fff}
.site-nav a[aria-current="page"]{color:var(--navy);background:var(--gold)}
.nav-toggle,.nav-burger{display:none}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:clamp(320px,52vh,520px);display:flex;align-items:flex-end;overflow:hidden}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,27,58,.25) 0%,rgba(14,27,58,.55) 55%,rgba(14,27,58,.88) 100%)}
.hero-inner{position:relative;z-index:2;color:#fff;padding:44px 0 40px;animation:riseIn .8s ease both}
.hero-inner h1{color:#fff;margin:.2em 0 .25em;max-width:20ch}
.hero-tag{color:var(--gold-soft);font-size:1.02rem;margin:0;font-family:"Noto Serif JP",serif}

.page-head{background:linear-gradient(120deg,var(--navy),var(--crimson-dark));color:#fff;padding:52px 0 46px}
.page-head h1{color:#fff;margin:.25em 0 0}

.badge{
  display:inline-block;background:var(--crimson);color:#fff;
  font-size:.72rem;font-weight:700;letter-spacing:.14em;
  padding:5px 12px;border-radius:999px;text-transform:uppercase;
  box-shadow:0 4px 14px rgba(176,23,34,.35);
}

/* ---------- Typography ---------- */
h1{font-family:"Noto Serif JP",serif;font-weight:700;font-size:clamp(1.7rem,4.2vw,2.6rem);line-height:1.35;margin:0}
h2{
  font-family:"Noto Serif JP",serif;font-weight:700;
  font-size:clamp(1.28rem,2.6vw,1.62rem);line-height:1.5;
  margin:2.2em 0 .7em;padding-left:16px;position:relative;color:var(--navy);
}
h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:5px;border-radius:3px;background:linear-gradient(180deg,var(--crimson),var(--gold))}
h3{font-family:"Noto Serif JP",serif;font-size:1.12rem;margin:1.6em 0 .5em;color:var(--crimson-dark)}
p{margin:0 0 1.2em}
.lead{font-size:1.08rem;color:#3a322c;border-left:4px solid var(--gold);background:#fffaf1;padding:16px 20px;border-radius:0 10px 10px 0;margin-bottom:1.6em}
strong{color:var(--crimson-dark);font-weight:700}
em{color:var(--muted);font-style:normal;font-size:.94em}

/* ---------- Content ---------- */
.content{padding:clamp(34px,6vw,64px) 0}
.article{max-width:800px;margin:0 auto;animation:riseIn .8s ease both}
.article ul,.article ol{margin:0 0 1.4em;padding-left:1.3em}
.article li{margin:.4em 0}
.article ul{list-style:none;padding-left:0}
.article ul li{position:relative;padding-left:1.5em}
.article ul li::before{content:"✶";color:var(--gold);position:absolute;left:0;top:0;font-size:.9em}
.article a{border-bottom:1px solid rgba(176,23,34,.3)}
.article a:hover{border-bottom-color:var(--crimson)}

.inline-figure{margin:2.4em 0;border-radius:14px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.inline-figure img{width:100%}

/* ---------- Contact form (about) ---------- */
.contact-form{display:flex;flex-direction:column;gap:14px;max-width:520px;margin:1.5em 0;background:var(--card);padding:24px;border-radius:14px;border:1px solid var(--line);box-shadow:var(--shadow)}
.contact-form label{display:flex;flex-direction:column;gap:6px;font-size:.86rem;font-weight:500;color:var(--navy)}
.contact-form input,.contact-form textarea{
  font-family:inherit;font-size:1rem;padding:11px 13px;border:1px solid var(--line);
  border-radius:9px;background:var(--paper);color:var(--ink);
}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--gold);border-color:var(--gold)}
.contact-form textarea{min-height:120px;resize:vertical}
.contact-form button{
  align-self:flex-start;background:var(--crimson);color:#fff;border:none;
  padding:12px 30px;border-radius:9px;font-size:1rem;font-weight:700;cursor:pointer;
  transition:background .2s,transform .1s;font-family:inherit;
}
.contact-form button:hover{background:var(--crimson-dark)}
.contact-form button:active{transform:translateY(1px)}

/* ---------- Footer ---------- */
.site-footer{background:linear-gradient(180deg,var(--navy-2),var(--navy));color:#dfe3ec;margin-top:40px;border-top:3px solid var(--gold);padding:44px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:36px}
.footer-brand{font-family:"Noto Serif JP",serif;font-weight:700;color:#fff;font-size:1.1rem;margin:0 0 .6em}
.footer-disclaimer{font-size:.82rem;line-height:1.85;color:#b9c1d3;margin:0}
.footer-disclaimer strong{color:var(--gold-soft)}
.footer-links ul{list-style:none;margin:0;padding:0;columns:2;column-gap:24px}
.footer-links li{margin:.35em 0;break-inside:avoid}
.footer-links a{color:#cfd5e3;font-size:.85rem}
.footer-links a:hover{color:var(--gold-soft)}
.copyright{margin:30px 0 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:.78rem;color:#9aa3b8;text-align:center}

/* ---------- Motion (pure CSS; ends visible; never gated on JS) ---------- */
@keyframes riseIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{animation:none !important}}
/* Safeguard: any scroll-reveal markup must never stay hidden waiting on JS */
[data-aos]{opacity:1 !important;transform:none !important}

/* ---------- Responsive ---------- */
@media (max-width:820px){
  .nav-burger{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
  .nav-burger span{width:26px;height:3px;background:var(--gold);border-radius:2px;transition:transform .25s,opacity .25s}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    background:var(--navy);border-bottom:3px solid var(--gold);
    max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  .site-nav ul{flex-direction:column;padding:8px 18px 16px}
  .site-nav a{padding:12px 10px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-toggle:checked ~ .site-nav{max-height:70vh;overflow:auto}
  .nav-toggle:checked ~ .nav-burger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .nav-toggle:checked ~ .nav-burger span:nth-child(2){opacity:0}
  .nav-toggle:checked ~ .nav-burger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .header-inner{flex-wrap:wrap;position:relative}
  .footer-grid{grid-template-columns:1fr;gap:24px}
}
@media (max-width:480px){
  .footer-links ul{columns:1}
  .brand-sub{display:none}
}