:root{
  --paper:#FAF7F0;
  --card:#FFFFFF;
  --ink:#1C2230;
  --muted:#6B7280;
  --indigo:#243A5E;
  --indigo-soft:#EEF1F6;
  --gold:#B8902C;
  --gold-soft:#FBF4E3;
  --line:#E8E3D8;
  --acupuncture:#9C3D54;
  --sports:#2E6E5B;
  --manual:#3A5BA0;
  --management:#B8902C;
  --radius:16px;
  --shadow:0 2px 14px rgba(28,34,48,.06);
  --maxw:680px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:"Noto Sans JP",-apple-system,"Hiragino Kaku Gothic ProN",sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.85;
  font-size:16px;
  padding-bottom:84px;
  -webkit-font-smoothing:antialiased;
}
.serif{font-family:"Noto Serif JP",serif}

/* Header */
.app-header{
  position:sticky;top:0;z-index:20;
  background:var(--indigo);
  color:#fff;
  padding:env(safe-area-inset-top) 0 0;
  box-shadow:0 1px 0 rgba(0,0,0,.12);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;
  display:flex;align-items:center;gap:12px;
  padding:12px 18px;
}
.header-mark{width:42px;height:42px;border-radius:50%;background:#fff;object-fit:cover;flex:none;border:2px solid var(--gold)}
.app-title{font-family:"Noto Serif JP",serif;font-size:1.18rem;font-weight:700;letter-spacing:.02em}
.app-tagline{font-size:.72rem;opacity:.82;font-weight:400;margin-top:2px}

/* Views */
main{max-width:var(--maxw);margin:0 auto;padding:18px 16px 40px}
.view{display:none;animation:fade .3s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.loading{text-align:center;color:var(--muted);padding:60px 0}
.view-head{margin:6px 4px 16px}
.view-title{font-family:"Noto Serif JP",serif;font-size:1.4rem;font-weight:700}
.view-sub{font-size:.85rem;color:var(--muted);margin-top:4px}

/* Paper */
.paper-meta{display:flex;align-items:center;gap:10px;margin:2px 2px 12px;flex-wrap:wrap}
.genre-badge{
  font-size:.74rem;font-weight:700;color:#fff;padding:4px 11px;border-radius:999px;letter-spacing:.02em;
}
.g-acupuncture{background:var(--acupuncture)}
.g-sports{background:var(--sports)}
.g-manual{background:var(--manual)}
.g-management{background:var(--management)}
.paper-date{font-size:.8rem;color:var(--muted)}

.paper-title{font-family:"Noto Serif JP",serif;font-size:1.42rem;font-weight:700;line-height:1.5;margin:2px 0 8px}
.paper-title-orig{font-size:.8rem;color:var(--muted);line-height:1.5;font-style:italic;margin-bottom:14px}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.chip{font-size:.72rem;background:var(--indigo-soft);color:var(--indigo);padding:4px 10px;border-radius:8px;font-weight:500}

/* Harry speech */
.harry-intro{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--gold-soft);border:1px solid #F0E4C6;border-radius:var(--radius);
  padding:14px;margin-bottom:20px;
}
.harry-intro img{width:64px;height:64px;flex:none;object-fit:contain}
.harry-bubble{font-size:.92rem;line-height:1.8}

/* TLDR */
.tldr{
  background:var(--indigo);color:#fff;border-radius:var(--radius);
  padding:18px;margin-bottom:22px;box-shadow:var(--shadow);
}
.tldr-label{font-size:.74rem;font-weight:700;color:var(--gold);letter-spacing:.08em;margin-bottom:6px}
.tldr-body{font-size:1rem;line-height:1.8}

/* Sections */
.section{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:14px;box-shadow:var(--shadow)}
.section-h{font-family:"Noto Serif JP",serif;font-size:1.08rem;font-weight:700;color:var(--indigo);margin-bottom:8px;display:flex;align-items:center;gap:8px}
.section-h::before{content:"";width:4px;height:18px;background:var(--gold);border-radius:2px;display:inline-block}
.section-body{font-size:.95rem}

/* Harry summary */
.harry-summary{
  display:flex;gap:12px;align-items:flex-start;
  background:#F3F6F2;border:1px solid #D9E6DC;border-radius:var(--radius);
  padding:16px;margin:18px 0;
}
.harry-summary img{width:60px;height:60px;flex:none;object-fit:contain}
.harry-summary .label{font-size:.74rem;font-weight:700;color:var(--sports);margin-bottom:4px}

/* Caveats */
.caveats{background:#FFF9F2;border:1px solid #F2E2CE;border-radius:var(--radius);padding:16px;margin-bottom:18px}
.caveats .section-h{color:#9C6B1E}
.caveats .section-h::before{background:#C98A2E}
.caveats ul{margin:6px 0 0 1.1em;font-size:.88rem;color:#5b5446}
.caveats li{margin-bottom:6px}

/* Citation */
.citation{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:14px}
.citation .section-h{color:var(--ink)}
.cite-text{font-size:.86rem;line-height:1.7;margin-bottom:12px;color:#333}
.cite-meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.cite-tag{font-size:.7rem;background:#F1EFE9;color:#555;padding:3px 9px;border-radius:6px}
.cite-tag.oa{background:#E5F1E9;color:var(--sports);font-weight:700}
.cite-links{display:flex;flex-direction:column;gap:8px}
.cite-link{
  display:flex;align-items:center;justify-content:space-between;
  background:var(--indigo-soft);color:var(--indigo);text-decoration:none;
  padding:11px 14px;border-radius:10px;font-size:.88rem;font-weight:700;
}
.cite-link:active{opacity:.7}
.cite-link .arrow{font-weight:400}

/* Disclaimer */
.disclaimer{font-size:.74rem;color:var(--muted);line-height:1.7;padding:14px 4px 0;border-top:1px solid var(--line);margin-top:8px}

/* Library */
.genre-filter{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.filter-btn{font-size:.78rem;border:1px solid var(--line);background:var(--card);color:var(--muted);padding:6px 13px;border-radius:999px;cursor:pointer;font-family:inherit}
.filter-btn.active{background:var(--indigo);color:#fff;border-color:var(--indigo)}
.library-list{display:flex;flex-direction:column;gap:12px}
.lib-card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);cursor:pointer;
}
.lib-card:active{transform:scale(.99)}
.lib-top{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.lib-date{font-size:.74rem;color:var(--muted)}
.lib-title{font-family:"Noto Serif JP",serif;font-size:1rem;font-weight:700;line-height:1.5}
.lib-type{font-size:.74rem;color:var(--muted);margin-top:6px}
.empty{text-align:center;color:var(--muted);padding:30px 0}

/* About */
.about-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.about-harry{width:120px;display:block;margin:0 auto 14px}
.about-card h3{font-family:"Noto Serif JP",serif;font-size:1rem;color:var(--indigo);margin:18px 0 6px}
.about-card p{font-size:.9rem;color:#333}
.about-genres{list-style:none;margin-top:8px;font-size:.88rem}
.about-genres li{display:flex;align-items:center;gap:9px;padding:5px 0}
.dot{width:11px;height:11px;border-radius:50%;flex:none}
.dot-acupuncture{background:var(--acupuncture)}
.dot-sports{background:var(--sports)}
.dot-manual{background:var(--manual)}
.dot-management{background:var(--management)}

/* Back link */
.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--indigo);font-size:.85rem;font-weight:700;background:none;border:none;cursor:pointer;padding:6px 0 12px;font-family:inherit}

/* Bottom nav */
.bottom-nav{
  position:fixed;bottom:0;left:0;right:0;z-index:30;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);
  display:flex;justify-content:center;gap:8px;
  padding:8px 0 calc(8px + env(safe-area-inset-bottom));
}
.nav-btn{
  flex:1;max-width:140px;background:none;border:none;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:2px;
  font-family:inherit;font-size:.7rem;color:var(--muted);padding:4px;
}
.nav-btn.active{color:var(--indigo);font-weight:700}
.nav-ico{font-size:1.25rem;line-height:1}