:root{
  --bg:#F7F7F5; --panel:#fff; --ink:#16181D; --quiet:#6B7280; --line:#E5E7EB;
  --ok:#059669; --tri:#D97706; --no:#DC2626; --accent:#2A5CE8;
  --r:14px; --sh:0 1px 2px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.06);
}
@media (prefers-color-scheme:dark){
  :root{ --bg:#0E1013; --panel:#171A20; --ink:#ECEFF3; --quiet:#9AA3AF; --line:#262B33;
         --sh:0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35); }
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-text-size-adjust:100%}
main{max-width:900px;margin:0 auto;padding:16px 16px 64px}
h1{font-size:1.5rem;margin:0 0 4px} h2{font-size:1.1rem;margin:0} h3{font-size:1rem;margin:0 0 6px}
a{color:var(--accent);text-decoration:none} a:hover{text-decoration:underline}
p{margin:.5em 0}
.quiet{color:var(--quiet)} .small{font-size:.85rem}
.up{color:var(--ok)} .down{color:var(--no)}

.bar{position:sticky;top:0;z-index:9;display:flex;gap:12px;align-items:center;justify-content:space-between;
  padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--line)}
.brand{font-weight:650;color:var(--ink)}
.bar nav{display:flex;gap:14px;flex-wrap:wrap;font-size:.92rem}

.hero{display:flex;gap:16px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap;margin:18px 0}
.sunday-flag{background:#FEF3C7;color:#92400E;padding:8px 12px;border-radius:999px;font-weight:600;font-size:.9rem}
.scorebox{text-align:right}
.scorebox .big{font-size:2.4rem;font-weight:700;line-height:1}
.scorebox .big span{font-size:1rem;color:var(--quiet);font-weight:500}

.card,.kid,.pile,.deck{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--sh);margin:14px 0}
.pad{padding:16px}
.ok-banner{background:#ECFDF5;color:#065F46;border-radius:var(--r);padding:10px 14px;margin:12px 0}
.err{background:#FEF2F2;color:#991B1B;border-radius:10px;padding:8px 12px}
.warnbox{border-color:#F59E0B}
.warn{background:#FEF3C7;color:#92400E;padding:1px 7px;border-radius:999px;font-size:.72rem}

/* login */
.login{max-width:380px;margin:8vh auto;text-align:center}
.who{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:16px 0}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip span{display:block;padding:9px 16px;border-radius:999px;border:2px solid var(--line);
  background:var(--panel);cursor:pointer;font-weight:600}
.chip input:checked + span{border-color:var(--c);background:var(--c);color:#fff}
.pin{width:180px;font-size:2rem;letter-spacing:.5em;text-align:center;padding:10px;
  border:2px solid var(--line);border-radius:12px;background:var(--panel);color:var(--ink)}
.go{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:10px 18px;
  font-size:1rem;font-weight:600;cursor:pointer;display:inline-block}
.go.small{padding:6px 12px;font-size:.85rem}
.go:hover{filter:brightness(1.06)}
.pinform{display:flex;flex-direction:column;gap:12px;align-items:center}

/* piles */
.pile{padding:14px 16px}
.pile h2{display:flex;align-items:baseline;gap:8px}
.pile h2 .en{font-size:.8rem;color:var(--quiet);letter-spacing:.08em}
.pile h2 .count{margin-left:auto;font-size:.9rem;color:var(--quiet)}
.pile.today{border-left:5px solid var(--accent)}
.pile.notyet{border-left:5px solid var(--tri)}
.pile.done{border-left:5px solid var(--ok)}
.cards{display:grid;gap:10px;margin-top:10px}

.qcard{border:1px solid var(--line);border-left:4px solid var(--c,var(--line));
  border-radius:10px;padding:12px}
.qcard.practised{opacity:.55}
.qcard .meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:.75rem;color:var(--quiet)}
.qcard .ref{font-weight:700;color:var(--c)}
.qcard .q{font-size:1.12rem;margin:8px 0 10px;line-height:1.5}
.pilechip{padding:1px 8px;border-radius:999px;background:var(--line)}
.pilechip.notyet{background:#FEF3C7;color:#92400E}
.pilechip.done{background:#ECFDF5;color:#065F46}
.pilechip.today{background:#EFF6FF;color:#1E40AF}
.prac{background:transparent;border:1px solid var(--line);border-radius:8px;padding:6px 12px;
  color:var(--quiet);cursor:pointer;font-size:.85rem}

/* marking */
.marks{display:flex;gap:8px}
.mkin{position:absolute;opacity:0;width:0;height:0}
.mk{flex:1;display:flex;align-items:center;justify-content:center;min-height:48px;
  font-size:1.5rem;padding:10px;border-radius:10px;border:2px solid var(--line);
  background:var(--panel);cursor:pointer;color:var(--ink);user-select:none}
.mk.ok:hover{border-color:var(--ok)} .mk.tri:hover{border-color:var(--tri)} .mk.no:hover{border-color:var(--no)}
.mkin:checked + .mk.ok{border-color:var(--ok);background:var(--ok);color:#fff}
.mkin:checked + .mk.tri{border-color:var(--tri);background:var(--tri);color:#fff}
.mkin:checked + .mk.no{border-color:var(--no);background:var(--no);color:#fff}
.mkin:focus-visible + .mk{outline:3px solid color-mix(in srgb,var(--accent) 45%,transparent);outline-offset:2px}
.testform{display:grid;gap:10px}
.money-note{font-size:.95rem}
.ans{margin:6px 0}
.ans summary{cursor:pointer;color:var(--quiet);font-size:.85rem}
.marking{margin:6px 0;padding-left:18px}
.marking b{display:inline-block;width:1.4em}

/* dashboard */
.kid{padding:16px;border-top:4px solid var(--c,var(--accent))}
.kidhead{display:flex;gap:16px;align-items:baseline;flex-wrap:wrap;margin-bottom:8px}
.kidhead h2{margin-right:auto}
.stat .lab{display:block;font-size:.72rem;color:var(--quiet);text-transform:uppercase;letter-spacing:.06em}
.stat .val{font-size:1.3rem;font-weight:700}
.deck{padding:14px;margin:12px 0 0;box-shadow:none}
.deckhead{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.deckhead h3{margin:0;margin-right:auto}
.pilebar{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px;margin:12px 0}
.pb{padding:10px;border-radius:10px;background:var(--bg);text-align:center}
.pb .n{display:block;font-size:1.5rem;font-weight:700}
.pb .t{font-size:.72rem;color:var(--quiet)}
.pb.today{box-shadow:inset 0 -3px 0 var(--accent)}
.pb.notyet{box-shadow:inset 0 -3px 0 var(--tri)}
.pb.done{box-shadow:inset 0 -3px 0 var(--ok)}
.pb.money{box-shadow:inset 0 -3px 0 #7C3AED}
.topics{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.tp{padding:5px 10px;border-radius:999px;border:2px solid transparent;background:var(--bg);font-size:.8rem}
.tp .tzh{font-weight:600;color:var(--c)}
.tp .tn{color:var(--quiet);margin-left:5px}
.tp.ringed{border-color:var(--c);box-shadow:0 0 0 3px color-mix(in srgb,var(--c) 18%,transparent)}

table.log{width:100%;border-collapse:collapse;margin:10px 0;font-size:.88rem}
table.log th{text-align:left;font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--quiet)}
table.log td,table.log th{padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}

/* forms */
.behform,.cardedit{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:8px 0}
.cardedit{flex-direction:column;align-items:stretch;border-top:1px solid var(--line);padding-top:10px}
.who-name{min-width:120px;font-weight:600}
input[type=text],input[type=number],input[type=date],textarea,select{
  padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--panel);
  color:var(--ink);font:inherit;font-size:.95rem}
input[type=text],textarea{flex:1;min-width:160px}
label{font-size:.85rem;color:var(--quiet);display:inline-flex;gap:6px;align-items:center}
label.block{display:block;margin:8px 0}
label.block input,label.block textarea{width:100%;display:block;margin-top:4px}
label.check{gap:6px}
.tip h3{margin-top:0}
.tip p{font-size:.92rem}

.savebar{position:sticky;bottom:0;display:flex;gap:12px;align-items:center;justify-content:space-between;
  padding:10px 14px;margin-top:6px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r);box-shadow:0 -4px 16px rgba(16,24,40,.10)}
.qcard.test{scroll-margin-top:70px}