/* TaichiNOW — book reader stylesheet
   Used by /vi/books/*_vi.html pages that embed a hosted PDF. */

:root{
  --serif:'Cormorant Garamond',Georgia,'Times New Roman',serif;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --ink:#1e293b; --muted:#64748b; --line:#e2e8f0;
  --gold:#b8860b; --bg:#f8fafc; --blue:#0284c7;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.75;-webkit-font-smoothing:antialiased;}

.reader-topnav{background:#0f172a;color:#fff;padding:.75rem 1.5rem;display:flex;align-items:center;
  justify-content:space-between;position:sticky;top:0;z-index:1000;box-shadow:0 2px 10px rgba(0,0,0,.15);}
.reader-topnav a{color:#fff;text-decoration:none;font-weight:600;font-size:.95rem;}
.reader-topnav .nav-links a{color:rgba(255,255,255,.78);font-weight:500;font-size:.88rem;margin-left:1.25rem;}
.reader-topnav .nav-links a:hover{color:#fff;}

.wrap{max-width:880px;margin:0 auto;padding:2rem 1.2rem 3rem;}
.crumb{font-size:.82rem;color:var(--muted);margin-bottom:1.1rem;}
.crumb a{color:var(--muted);text-decoration:none;}
.crumb a:hover{color:var(--gold);}

h1{font-family:var(--serif);font-size:2.35rem;font-weight:600;line-height:1.18;color:#0f172a;letter-spacing:-.01em;}
.sub{font-family:var(--serif);font-size:1.22rem;font-style:italic;color:var(--muted);margin-top:.4rem;line-height:1.5;}

.biblio{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:1.6rem 0;padding:.9rem 0;
  font-size:.84rem;color:var(--muted);display:grid;grid-template-columns:7.5rem 1fr;gap:.3rem 1rem;}
.biblio dt{font-weight:600;color:#475569;}
.biblio dd{margin:0;}

h2{font-family:var(--serif);font-size:1.5rem;font-weight:600;margin-top:2.3rem;color:#0f172a;}
h3{font-size:1rem;font-weight:600;margin-top:1.6rem;color:#334155;}
p{margin-top:.9rem;font-size:1.02rem;}
p.lead{font-size:1.06rem;}

blockquote{border-left:3px solid var(--gold);margin:1.2rem 0;padding:.3rem 0 .3rem 1.2rem;
  font-family:var(--serif);font-size:1.1rem;line-height:1.75;color:#334155;}
blockquote cite{display:block;font-family:var(--sans);font-size:.78rem;font-style:normal;color:var(--muted);margin-top:.4rem;}

table{width:100%;border-collapse:collapse;font-size:.87rem;margin:1rem 0;}
th{text-align:left;padding:.55rem;background:#f1f5f9;border-bottom:2px solid var(--line);font-weight:600;}
td{padding:.5rem;border-bottom:1px solid var(--line);vertical-align:top;}
td.num{width:2.2rem;color:var(--muted);font-variant-numeric:tabular-nums;}

table.cmp{font-size:.84rem;margin:1.6rem 0;}
table.cmp th{width:50%;background:#1e293b;color:#fff;border-bottom:none;font-size:.9rem;}
table.cmp td{padding:.6rem .7rem;font-size:.84rem;line-height:1.65;}
table.cmp td.empty{background:#fafafa;}
table.cmp td.yr{background:#f1f5f9;font-weight:700;color:#334155;letter-spacing:.06em;text-align:center;}

/* --- chapter structure, shared by every *_vi.html reader page --- */
h2 .chnum{display:block;font-family:var(--sans);font-size:.74rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:.15rem;}
h2 .chtitle{display:block;}
p.chauth{font-size:.84rem;color:var(--muted);margin-top:.25rem;}

h2.part{font-family:var(--sans);font-size:1.02rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;text-align:center;margin-top:3.2rem;color:#475569;}
h2.part::after{content:"";display:block;width:64px;height:2px;background:var(--gold);
  margin:.7rem auto 0;}
p.partnote{font-family:var(--serif);font-style:italic;font-size:1rem;color:var(--muted);
  text-align:center;margin-top:.55rem;margin-bottom:1rem;}

p.pending{font-family:var(--serif);font-style:italic;font-size:.95rem;color:var(--muted);
  background:#f8fafc;border-left:3px solid var(--line);padding:.7rem 1rem;}
p.tnote{font-size:.84rem;line-height:1.7;color:var(--muted);background:#f8fafc;
  border-left:3px solid var(--line);padding:.6rem .95rem;margin-top:.9rem;}
table.data{font-size:.76rem;margin:1.1rem 0;}
table.data th{padding:.42rem .5rem;font-size:.72rem;}
table.data td{padding:.32rem .5rem;line-height:1.5;}
table.data td.num{width:auto;text-align:right;font-variant-numeric:tabular-nums;
  color:#0f172a;font-weight:600;padding-right:.7rem;}
table.data tbody tr:nth-child(even){background:#f8fafc;}

.reflist{margin:1.9rem 0 .4rem;border-top:1px solid var(--line);padding-top:.9rem;}
.reflist-h{font-size:.74rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--muted);margin-bottom:.35rem;}
.reflist p.refitem{font-size:.8rem;line-height:1.65;color:#475569;
  margin-top:.55rem;padding-left:1.4rem;text-indent:-1.4rem;}

.box{background:#f1f5f9;border-radius:8px;padding:1rem 1.2rem;margin:1.4rem 0;font-size:.9rem;line-height:1.75;}
.box ul{margin:.5rem 0 0;padding-left:1.2rem;}
.box li{margin-bottom:.45rem;}

ol{margin:1.2rem 0;padding-left:1.8rem;line-height:1.8;}
ol li{margin-bottom:.9rem;}
ol li strong{color:#0f172a;}

.actions{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center;margin:1.8rem 0 1rem;}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;font-weight:700;
  padding:.7rem 1.35rem;border-radius:8px;text-decoration:none;font-size:.92rem;}
.btn:hover{background:#0369a1;}
.btn.alt{background:transparent;color:#0f172a;border:1px solid #cbd5e1;}
.btn.alt:hover{border-color:var(--gold);color:var(--gold);}

.pdf-frame{width:100%;height:88vh;border:1px solid var(--line);border-radius:8px;background:#fff;}

.foot{border-top:1px solid var(--line);margin-top:2.4rem;padding-top:1rem;font-size:.83rem;color:var(--muted);line-height:1.7;}
.foot p{margin-top:.5rem;font-size:.83rem;}

.pagenav{display:flex;justify-content:space-between;gap:1rem;margin-top:2rem;font-size:.88rem;flex-wrap:wrap;}
.pagenav a{color:var(--blue);text-decoration:none;font-weight:600;}

@media(max-width:640px){
  h1{font-size:1.75rem;}
  .biblio{grid-template-columns:1fr;}
  .pdf-frame{height:70vh;}
}