:root{
  --paper:#FAF8F3; --ink:#1B1730; --ink-soft:#4A4560;
  --coral:#E8483C; --gold:#E8A33D; --green:#2E8B57; --red:#C43B3B;
  --line:#E4DFD3; --card:#FFFFFF;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#17151F; --ink:#F2EFE7; --ink-soft:#B8B3C9;
    --card:#211E2C; --line:#332E42;
  }
}
:root[data-theme="dark"]{
  --paper:#17151F; --ink:#F2EFE7; --ink-soft:#B8B3C9;
  --card:#211E2C; --line:#332E42;
}
*{box-sizing:border-box}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;line-height:1.5}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;font-weight:normal;margin:0 0 .3em}
.wrap{max-width:900px;margin:0 auto;padding:0 20px}
header.top{display:flex;align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--paper);z-index:10;padding-top:calc(14px + env(safe-area-inset-top,0px))}
header.top img{width:38px;height:38px;border-radius:8px;flex-shrink:0}
header.top .brand{font-family:Georgia,serif;font-size:1.15rem}
header.top .brand small{display:block;font-family:-apple-system,sans-serif;font-size:.65rem;color:var(--ink-soft);letter-spacing:.02em}
nav.tabs{margin-left:auto;display:flex;gap:4px;overflow-x:auto;max-width:100%}
nav.tabs button{background:none;border:none;color:var(--ink-soft);font-size:.85rem;padding:8px 10px;cursor:pointer;border-radius:8px;white-space:nowrap}
nav.tabs button.active{background:var(--ink);color:var(--paper)}
main{padding:28px 0 60px}
.view{display:none}.view.active{display:block}
.hero{padding:20px 0 8px}
.hero h1{font-size:2.1rem;max-width:11ch}
.hero p{color:var(--ink-soft);max-width:46ch;font-size:1.02rem}
.btn{display:inline-block;background:var(--coral);color:#fff;border:none;padding:11px 20px;border-radius:9px;font-size:.95rem;cursor:pointer;text-decoration:none}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-top:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.card h3{font-size:1rem;margin-bottom:6px}
.stat{font-size:1.6rem;font-family:Georgia,serif}
.field{margin-bottom:12px}
.field label{display:block;font-size:.8rem;color:var(--ink-soft);margin-bottom:4px}
.field input,.field select{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);font-size:.95rem}
.formcard{max-width:380px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;margin-top:10px}
.bar-row{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:.88rem}
.bar-row .lab{width:88px;flex-shrink:0;color:var(--ink-soft)}
.bar-track{flex:1;height:9px;background:var(--line);border-radius:5px;overflow:hidden}
.bar-fill{height:100%;background:var(--coral);border-radius:5px}
.exam-shell{display:flex;gap:20px;align-items:flex-start;flex-wrap:wrap}
.exam-main{flex:1;min-width:260px}
.exam-side{width:220px;flex-shrink:0}
.qgrid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px;margin-top:10px}
.qgrid button{aspect-ratio:1;border:1px solid var(--line);background:var(--card);border-radius:6px;font-size:.78rem;cursor:pointer;color:var(--ink)}
.qgrid button.answered{background:var(--green);color:#fff;border-color:var(--green)}
.qgrid button.marked{background:var(--gold);color:#fff;border-color:var(--gold)}
.qgrid button.current{outline:2px solid var(--coral);outline-offset:1px}
.timer{font-family:Georgia,serif;font-size:1.5rem;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 14px;text-align:center}
.opt{display:block;border:1px solid var(--line);border-radius:9px;padding:12px 14px;margin-bottom:8px;cursor:pointer;background:var(--card)}
.opt.sel{border-color:var(--coral);background:rgba(232,72,60,.08)}
.opt input{margin-right:10px}
.legend{display:flex;gap:14px;font-size:.75rem;color:var(--ink-soft);margin-top:10px;flex-wrap:wrap}
.legend span{display:inline-flex;align-items:center;gap:5px}
.dot{width:9px;height:9px;border-radius:3px;display:inline-block}
table{width:100%;border-collapse:collapse;font-size:.88rem;margin-top:10px}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line)}
.pill{display:inline-block;padding:2px 8px;border-radius:20px;font-size:.72rem}
.pill.ok{background:rgba(46,139,87,.15);color:var(--green)}
.pill.bad{background:rgba(196,59,59,.15);color:var(--red)}
.notice{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--coral);padding:12px 14px;border-radius:8px;font-size:.88rem;color:var(--ink-soft)}
footer{border-top:1px solid var(--line);padding:20px;text-align:center;color:var(--ink-soft);font-size:.8rem}
@media(max-width:640px){.hero h1{font-size:1.6rem}.exam-side{width:100%}}