/* =========================================================
   TOTALLY OSAKA — design system
   Tokens: ink navy / shu-iro red / warm paper / sakura pink / gold
   Type: Shippori Mincho (display) + Zen Kaku Gothic New (body)
         + JetBrains Mono (index numbers, badges, data)
   Signature: Metro-line badges — every page/section carries a
   circular line-badge (P-01, D-02...) styled after Osaka Metro
   wayfinding signage, tying the growing page-index to the city's
   subway map.
   ========================================================= */

:root{
  --ink:        #14171F;
  --ink-soft:   #3B3F4C;
  --ink-faint:  #6B6F7C;
  --paper:      #FBF8F2;
  --paper-alt:  #F2ECE1;
  --paper-line: #E4DBCB;
  --red:        #D8262C;
  --red-deep:   #A8181D;
  --red-wash:   #FBE7E5;
  --sakura:     #F2C8D1;
  --sakura-deep:#C8637C;
  --gold:       #B8903E;
  --gold-soft:  #E4C989;
  --white:      #FFFFFF;

  --font-display: "Shippori Mincho", "Noto Serif JP", serif;
  --font-body: "Zen Kaku Gothic New", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 22px;
  --shadow-card: 0 1px 2px rgba(20,23,31,.04), 0 8px 24px -12px rgba(20,23,31,.18);
  --shadow-pop: 0 24px 60px -20px rgba(20,23,31,.35);
  --maxw: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-soft);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:var(--red-deep); text-decoration:none; }
a:hover{ text-decoration:underline; }
h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--ink);
  line-height:1.2;
  margin:0 0 .5em;
  font-weight:600;
}
h1{ font-size:clamp(2.1rem, 4.4vw, 3.4rem); }
h2{ font-size:clamp(1.5rem, 2.6vw, 2.05rem); }
h3{ font-size:1.28rem; }
p{ margin:0 0 1.1em; }
ul,ol{ padding-left:1.25em; margin:0 0 1.1em; }
li{ margin-bottom:.4em; }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }

:focus-visible{ outline:3px solid var(--gold); outline-offset:2px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

/* ---------- Utility bits ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:.5em;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--red-deep);
  font-weight:700;
}
.eyebrow::before{
  content:"";
  width:18px; height:2px; background:var(--red);
  display:inline-block;
}
.section{ padding:76px 0; }
.section-tight{ padding:48px 0; }
.section-alt{ background:var(--paper-alt); border-top:1px solid var(--paper-line); border-bottom:1px solid var(--paper-line); }
.section-ink{ background:var(--ink); color:#C9CCD6; }
.section-ink h2, .section-ink h3{ color:var(--white); }
.section-head{ max-width:640px; margin-bottom:40px; }
.section-head p{ color:var(--ink-faint); font-size:1.06rem; }

.btn{
  display:inline-flex; align-items:center; gap:.55em;
  font-family:var(--font-body); font-weight:700; font-size:.98rem;
  padding:.85em 1.5em; border-radius:999px;
  border:2px solid var(--ink); background:var(--ink); color:var(--white);
  cursor:pointer; transition:transform .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover{ background:var(--red); border-color:var(--red); text-decoration:none; transform:translateY(-2px); }
.btn-ghost{ background:transparent; color:var(--ink); }
.btn-ghost:hover{ background:var(--ink); color:var(--white); }
.btn-on-ink{ border-color:var(--white); background:transparent; color:var(--white); }
.btn-on-ink:hover{ background:var(--red); border-color:var(--red); }

/* ---------- Line badge (signature element) ---------- */
.badge{
  display:inline-flex; align-items:center; justify-content:center;
  width:44px; height:44px; border-radius:50%;
  background:var(--red); color:var(--white);
  font-family:var(--font-mono); font-weight:700; font-size:.78rem;
  letter-spacing:.02em;
  flex:none;
  box-shadow:0 0 0 3px var(--paper), 0 0 0 4px var(--paper-line);
}
.badge-lg{ width:56px; height:56px; font-size:.86rem; }
.badge-outline{ background:var(--white); color:var(--red); border:2px solid var(--red); box-shadow:none; }

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute; left:-999px; top:auto;
  background:var(--ink); color:var(--white); padding:12px 20px;
  z-index:1000; border-radius:0 0 8px 0;
}
.skip-link:focus{ left:0; top:0; }

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:200;
  background:rgba(251,248,242,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--paper-line);
}
.header-inner{
  display:flex; align-items:center; gap:20px;
  padding:12px 24px;
  max-width:var(--maxw); margin:0 auto;
}
.brand{ display:flex; align-items:center; gap:10px; margin-right:auto; }
.brand img{ height:40px; width:auto; }
.brand-word{ display:none; }

.main-nav{ display:none; }
.main-nav ul{ display:flex; align-items:center; gap:2px; list-style:none; margin:0; padding:0; }
.main-nav a{
  display:block; padding:10px 13px; border-radius:8px;
  color:var(--ink-soft); font-weight:600; font-size:.92rem;
  white-space:nowrap;
}
.main-nav a:hover, .main-nav a[aria-current="page"]{ background:var(--paper-alt); color:var(--ink); text-decoration:none; }

.header-actions{ display:flex; align-items:center; gap:8px; }
.icon-btn{
  display:inline-flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:50%;
  border:1px solid var(--paper-line); background:var(--white);
  color:var(--ink); cursor:pointer;
}
.icon-btn:hover{ border-color:var(--ink); }
.menu-toggle{ display:inline-flex; }

@media (min-width: 980px){
  .brand-word{ display:block; font-family:var(--font-display); font-weight:700; font-size:1.18rem; color:var(--ink); }
  .main-nav{ display:block; }
  .menu-toggle{ display:none; }
}

/* Mobile nav drawer */
.mobile-nav{
  position:fixed; inset:0; z-index:300;
  background:var(--ink); color:var(--white);
  transform:translateX(100%); transition:transform .28s ease;
  display:flex; flex-direction:column;
}
.mobile-nav.is-open{ transform:translateX(0); }
.mobile-nav-top{ display:flex; justify-content:space-between; align-items:center; padding:16px 20px; border-bottom:1px solid #2A2E3A; }
.mobile-nav ul{ list-style:none; margin:0; padding:12px 8px; overflow-y:auto; }
.mobile-nav a{ display:flex; align-items:center; gap:12px; padding:14px 12px; color:var(--white); font-size:1.05rem; font-weight:600; border-radius:10px; }
.mobile-nav a:hover{ background:#20232D; text-decoration:none; }
@media (min-width:980px){ .mobile-nav{ display:none; } }

/* ---------- Hero ---------- */
.hero{
  position:relative; overflow:hidden;
  background:
    radial-gradient(ellipse 900px 500px at 84% -10%, var(--red-wash), transparent 60%),
    var(--paper);
  padding:56px 0 40px;
  border-bottom:1px solid var(--paper-line);
}
.hero-grid{ display:grid; gap:36px; align-items:center; }
.hero-eyebrow-row{ display:flex; align-items:center; gap:10px; margin-bottom:18px; flex-wrap:wrap; }
.hero h1{ margin-bottom:.35em; }
.hero .lead{ font-size:1.15rem; color:var(--ink-soft); max-width:52ch; }
.hero-cta{ display:flex; gap:12px; margin-top:26px; flex-wrap:wrap; }
.hero-art{ position:relative; }
.hero-art img{ width:100%; height:auto; }

@media(min-width:920px){
  .hero-grid.two-col{ grid-template-columns:1.05fr .95fr; }
}

/* Ticker strip */
.ticker{
  background:var(--ink); color:#D7DAE2;
  border-top:1px solid #262A36;
}
.ticker .container{ display:flex; gap:26px; flex-wrap:wrap; padding:11px 24px; font-size:.86rem; }
.ticker span{ display:inline-flex; align-items:center; gap:8px; }
.ticker b{ color:var(--white); font-family:var(--font-mono); font-weight:600; }
.ticker .dot{ width:6px; height:6px; border-radius:50%; background:var(--red); flex:none; }

/* ---------- Stat row ---------- */
.stat-row{
  display:grid; grid-template-columns:repeat(2,1fr); gap:1px;
  background:var(--paper-line); border:1px solid var(--paper-line);
  border-radius:var(--radius-m); overflow:hidden;
}
.stat{ background:var(--paper); padding:22px 20px; }
.stat .n{ font-family:var(--font-mono); font-weight:700; font-size:1.9rem; color:var(--red-deep); display:block; }
.stat .l{ font-size:.86rem; color:var(--ink-faint); }
@media(min-width:640px){ .stat-row{ grid-template-columns:repeat(4,1fr); } }

/* ---------- Metro line map (homepage signature) ---------- */
.linemap{ width:100%; height:auto; display:block; }
.linemap-wrap{ padding:10px 0 6px; overflow-x:auto; }
.linemap-station text{ font-family:var(--font-mono); }

/* ---------- Region / department grid ---------- */
.grid{ display:grid; gap:20px; }
.grid-2{ grid-template-columns:1fr; }
.grid-3{ grid-template-columns:1fr; }
.grid-4{ grid-template-columns:1fr; }
@media(min-width:640px){
  .grid-2{ grid-template-columns:repeat(2,1fr); }
  .grid-3{ grid-template-columns:repeat(2,1fr); }
}
@media(min-width:980px){
  .grid-3{ grid-template-columns:repeat(3,1fr); }
  .grid-4{ grid-template-columns:repeat(4,1fr); }
}

.region-card{
  display:block; padding:20px; border-radius:var(--radius-m);
  background:var(--white); border:1px solid var(--paper-line);
  transition:transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.region-card:hover{ transform:translateY(-3px); box-shadow:var(--shadow-card); border-color:transparent; text-decoration:none; }
.region-card .tag{ font-family:var(--font-mono); font-size:.72rem; letter-spacing:.1em; color:var(--red-deep); text-transform:uppercase; font-weight:700; }
.region-card h3{ margin:.4em 0 .3em; font-size:1.1rem; }
.region-card p{ margin:0; font-size:.92rem; color:var(--ink-faint); }

/* ---------- Department card ---------- */
.dept-card{
  background:var(--white); border:1px solid var(--paper-line); border-radius:var(--radius-l);
  padding:26px; display:flex; flex-direction:column; gap:14px;
  box-shadow:var(--shadow-card);
}
.dept-card-top{ display:flex; align-items:center; gap:14px; }
.dept-card .dept-name{ font-family:var(--font-display); font-size:1.34rem; color:var(--ink); margin:0; }
.dept-card .dept-count{ font-family:var(--font-mono); font-size:.75rem; color:var(--ink-faint); }
.dept-card p{ margin:0; color:var(--ink-soft); font-size:.98rem; }
.dept-links{ list-style:none; margin:2px 0 0; padding:0; display:flex; flex-direction:column; gap:6px; }
.dept-links a{ font-size:.92rem; font-weight:600; color:var(--ink); }
.dept-links a::before{ content:"→ "; color:var(--red); }
.dept-card .view-all{ margin-top:auto; font-family:var(--font-mono); font-size:.82rem; font-weight:700; color:var(--red-deep); }

/* ---------- Board / updates list ---------- */
.board{ border:1px solid var(--paper-line); border-radius:var(--radius-m); overflow:hidden; background:var(--white); }
.board-item{ display:flex; gap:16px; align-items:flex-start; padding:18px 20px; border-bottom:1px solid var(--paper-line); }
.board-item:last-child{ border-bottom:none; }
.board-tag{
  font-family:var(--font-mono); font-size:.7rem; font-weight:700; letter-spacing:.06em;
  background:var(--red-wash); color:var(--red-deep); padding:4px 9px; border-radius:5px; white-space:nowrap; margin-top:.2em;
}
.board-item .when{ font-size:.8rem; color:var(--ink-faint); display:block; margin-top:2px; }
.board-item a{ color:var(--ink); font-weight:700; }

/* ---------- Progress banner ---------- */
.progress-banner{
  background:var(--ink); color:#D7DAE2; border-radius:var(--radius-l);
  padding:34px; display:grid; gap:22px;
}
.progress-banner h3{ color:var(--white); }
.progress-bar{ height:10px; background:#262A36; border-radius:99px; overflow:hidden; }
.progress-bar span{ display:block; height:100%; background:linear-gradient(90deg, var(--red), var(--gold-soft)); }
@media(min-width:860px){ .progress-banner{ grid-template-columns:1.3fr 1fr; align-items:center; } }

/* ---------- Article ---------- */
.page-hero{ padding:44px 0 30px; border-bottom:1px solid var(--paper-line); background:var(--paper-alt); }
.breadcrumbs{ font-size:.85rem; color:var(--ink-faint); margin-bottom:16px; }
.breadcrumbs a{ color:var(--ink-faint); font-weight:600; }
.breadcrumbs a:hover{ color:var(--red-deep); }
.page-meta{ display:flex; gap:16px; flex-wrap:wrap; align-items:center; margin-top:16px; font-size:.85rem; color:var(--ink-faint); font-family:var(--font-mono); }

.article-layout{ display:grid; gap:44px; padding:44px 0 20px; }
.article-body h2{ margin-top:1.3em; }
.article-body h2:first-child{ margin-top:0; }
.article-body .callout{
  background:var(--red-wash); border-left:4px solid var(--red);
  padding:18px 20px; border-radius:0 var(--radius-s) var(--radius-s) 0; margin:1.6em 0;
}
.article-body .callout b{ color:var(--red-deep); display:block; font-family:var(--font-mono); font-size:.78rem; letter-spacing:.08em; text-transform:uppercase; margin-bottom:.4em; }
.article-aside{ display:flex; flex-direction:column; gap:22px; }
.aside-box{ background:var(--white); border:1px solid var(--paper-line); border-radius:var(--radius-m); padding:20px; }
.aside-box h4{ font-size:.78rem; font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.08em; color:var(--ink-faint); margin-bottom:12px; }
.aside-box ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.aside-box a{ font-weight:600; color:var(--ink); font-size:.94rem; }
.aside-box a::before{ content:"→ "; color:var(--red); }
@media(min-width:920px){ .article-layout{ grid-template-columns:1fr 300px; } }

.share-row{ display:flex; gap:8px; flex-wrap:wrap; align-items:center; margin-top:26px; padding-top:22px; border-top:1px solid var(--paper-line); }
.share-row span{ font-size:.82rem; color:var(--ink-faint); margin-right:4px; }
.share-btn{ display:inline-flex; align-items:center; justify-content:center; width:36px; height:36px; border-radius:50%; background:var(--paper-alt); color:var(--ink); border:1px solid var(--paper-line); font-size:.9rem; }
.share-btn:hover{ background:var(--red); color:var(--white); border-color:var(--red); text-decoration:none; }

/* ---------- Related grid ---------- */
.related-grid{ margin-top:18px; }

/* ---------- Cherry blossom corner accent ---------- */
.sakura-accent{ position:absolute; pointer-events:none; opacity:.9; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--ink); color:#B7BAC6; padding:64px 0 26px; }
.footer-top{ display:grid; gap:40px; margin-bottom:46px; }
.footer-brand img{ height:40px; margin-bottom:14px; }
.footer-brand p{ max-width:34ch; font-size:.92rem; color:#8C90A0; }
.footer-cols{ display:grid; grid-template-columns:repeat(2,1fr); gap:28px; }
.footer-col h5{ font-family:var(--font-mono); font-size:.74rem; letter-spacing:.1em; text-transform:uppercase; color:#7B7F8F; margin:0 0 14px; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:9px; }
.footer-col a{ color:#C6C9D3; font-size:.9rem; }
.footer-col a:hover{ color:var(--white); }
.footer-bottom{ border-top:1px solid #262A36; padding-top:22px; display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; font-size:.82rem; color:#767A88; }
.footer-bottom a{ color:#9296A5; }
.lang-note{ font-size:.78rem; color:#6B6F80; }
@media(min-width:760px){
  .footer-top{ grid-template-columns:1.1fr 2fr; }
  .footer-cols{ grid-template-columns:repeat(4,1fr); }
}

/* ---------- Search overlay ---------- */
.search-overlay{
  position:fixed; inset:0; z-index:400; background:rgba(17,20,28,.72);
  display:flex; align-items:flex-start; justify-content:center; padding:9vh 20px;
  opacity:0; pointer-events:none; transition:opacity .18s ease;
}
.search-overlay.is-open{ opacity:1; pointer-events:auto; }
.search-panel{ background:var(--white); width:100%; max-width:640px; border-radius:var(--radius-m); padding:22px; box-shadow:var(--shadow-pop); }
.search-panel input{
  width:100%; font-size:1.1rem; padding:14px 16px; border-radius:10px;
  border:2px solid var(--paper-line); font-family:var(--font-body); color:var(--ink);
}
.search-panel input:focus{ outline:none; border-color:var(--red); }
.search-hint{ font-size:.8rem; color:var(--ink-faint); margin-top:10px; }
#search-results{ margin-top:14px; max-height:50vh; overflow-y:auto; display:flex; flex-direction:column; gap:4px; }
#search-results a{ display:block; padding:10px 12px; border-radius:8px; color:var(--ink); }
#search-results a:hover{ background:var(--paper-alt); text-decoration:none; }
#search-results .r-dept{ font-family:var(--font-mono); font-size:.7rem; color:var(--red-deep); text-transform:uppercase; margin-right:8px; }
.search-close{ float:right; }

/* ---------- 404 ---------- */
.notfound{ text-align:center; padding:110px 0; }
.notfound .mark-big{ width:120px; margin:0 auto 24px; }

/* ---------- Language note box (about/footer) ---------- */
.lang-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:8px; font-size:.9rem; }
@media(min-width:640px){ .lang-grid{ grid-template-columns:repeat(4,1fr); } }
.lang-grid span{ padding:8px 10px; background:var(--paper-alt); border-radius:8px; }