.uploadWrap,.setup{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
.drop{
  min-height:300px;border:2px dashed #b9d2ff;border-radius:26px;padding:34px;display:grid;place-items:center;text-align:center;
  background:linear-gradient(145deg,#fafdff,#f2f7ff);transition:.2s
}
.drop.drag{border-color:var(--blue);background:#eef5ff;transform:scale(1.005)}
.dropIcon{width:58px;height:58px;border-radius:18px;margin:0 auto 14px;display:grid;place-items:center;font-size:27px;background:#ecf3ff;border:1px solid #d4e4ff;color:var(--blue2)}
.drop h2{margin:0 0 6px;font-size:24px;color:#102246}
.drop p{color:var(--muted);max-width:480px;margin:0 auto 17px}
.notice{padding:18px;background:linear-gradient(180deg,#fff,#f9fbff)}
.notice h3{margin:0 0 8px;color:#102246}
.notice ul{margin:8px 0 0;padding-left:18px;color:var(--muted)}
.notice li{margin:8px 0}
.progressBox{margin-top:14px;text-align:left}
.progressRow{padding:10px 0;border-top:1px solid var(--line)}
.progressTrack,.barTrack{height:8px;background:#e8f0fb;border-radius:999px;overflow:hidden;margin-top:6px}
.progressBar,.barFill{height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--cyan));transition:width .2s}
.panelPad{padding:22px}
.formGrid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.field label{display:block;color:var(--muted);font-size:11px;font-weight:700;margin:0 0 6px}
.input,select{
  width:100%;border:1px solid #d7e4f8;border-radius:12px;background:#fff;color:var(--text);padding:11px 12px;outline:none
}
.input:focus,select:focus{border-color:#7aa8ff;box-shadow:0 0 0 3px rgba(37,99,235,.10)}
.toggleRow{display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);border-radius:13px;padding:11px 12px;margin-top:10px;background:#fbfdff}
.toggleRow span small{display:block;color:var(--muted)}
.switch{position:relative;width:42px;height:24px;background:#dbe7fb;border-radius:999px;transition:.18s}
.switch input{position:absolute;inset:0;opacity:0;width:100%;height:100%;margin:0;z-index:1;cursor:pointer}
.switch:focus-within{outline:3px solid var(--blue);outline-offset:3px}
.switch[aria-disabled="true"]{opacity:.5}
.switch:after{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;background:white;border-radius:50%;transition:.2s;box-shadow:0 2px 7px rgba(16,32,63,.18)}
.switch.on{background:linear-gradient(90deg,var(--blue),var(--cyan))}
.switch.on:after{transform:translateX(18px)}
.modeGrid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.mode{border:1px solid var(--line);background:#fcfdff;padding:13px;border-radius:14px}
.mode.active{border-color:#b9d0ff;background:#eff6ff;box-shadow:inset 0 0 0 1px rgba(37,99,235,.05)}
.mode strong{display:block}
.mode small{color:var(--muted)}
.practiceLayout{display:grid;grid-template-columns:minmax(0,1fr) 286px;gap:18px}
.qCard{padding:24px;min-height:570px;display:flex;flex-direction:column}
.qMeta{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}
.qTitle{font-size:23px;line-height:1.35;margin:17px 0 20px;letter-spacing:-.02em;color:#0f2248}
.choices{display:grid;gap:10px}
.choice{
  display:grid;grid-template-columns:40px 1fr;gap:11px;align-items:center;width:100%;text-align:left;
  border:1px solid var(--line);background:#fff;color:var(--text);padding:12px;border-radius:15px;transition:.14s
}
.choice:hover{border-color:#a7c7ff;background:#f5f9ff;transform:translateY(-1px)}
.choice .letter{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:#eef4ff;font-weight:850;color:var(--blue2)}
.choice.selected{border-color:#8fb7ff;background:#eef5ff}
.choice.correct{border-color:#89ddb0;background:#ecfdf3}
.choice.wrong{border-color:#f7a6b6;background:#fff2f5}
.explain{margin-top:16px;padding:15px;border-radius:15px;background:#f9fbff;border:1px solid var(--line)}
.explain h4{margin:0 0 6px}
.explain p{color:#445577;margin:0}
.sources{margin-top:10px;font-size:11px;color:var(--muted)}
.qFooter{margin-top:auto;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.sideCard{padding:16px;position:sticky;top:96px}
.sideCard h3{margin:0 0 10px;color:#102246}
.searchRow{display:flex;gap:10px;flex-wrap:wrap}
.qGrid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:12px}
.qDot{
  width:100%;aspect-ratio:1;border-radius:12px;border:1px solid #d5e2f7;background:#fff;color:#627699;
  display:grid;place-items:center;font-weight:700;font-size:12px
}
.qDot.done{background:#ecfdf3;border-color:#98e0b8;color:#15803d}
.qDot.current{background:#eff6ff;border-color:#b9d0ff;color:var(--blue2)}
.qDot.flag{box-shadow:0 0 0 2px rgba(245,158,11,.24) inset;border-color:#f8cb7b}
.timer{font-weight:800;color:#102246}
.resultsHero{padding:28px;text-align:center;background:linear-gradient(180deg,#ffffff,#f6faff)}
.scoreRing{
  --scoreDeg:180deg;
  width:128px;height:128px;border-radius:50%;margin:16px auto;
  background:conic-gradient(var(--blue) 0 var(--scoreDeg), #e4edfb var(--scoreDeg) 360deg);
  display:grid;place-items:center;position:relative
}
.scoreRing:before{content:"";position:absolute;inset:11px;background:#fff;border-radius:50%;box-shadow:inset 0 0 0 1px var(--line)}
.scoreRing span{position:relative;font-weight:900;font-size:28px;color:#102246}
.reviewList{display:grid;gap:12px}
.reviewItem{padding:0;overflow:hidden}
.reviewItem details{padding:14px 16px}
.reviewItem summary{list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:flex-start;cursor:pointer}
.reviewItem summary::-webkit-details-marker{display:none}
.reviewItem .mini{font-size:12px;color:var(--muted);margin-top:4px}
.bankItem{padding:16px;border-bottom:1px solid #edf2fb}
.bankItem:last-child{border-bottom:0}
.bankItem h4{margin:10px 0 6px;font-size:15px;color:#102246}
.statsGrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.bars{display:grid;gap:12px}
.barRow{display:grid;grid-template-columns:minmax(140px,220px) 1fr 46px;gap:12px;align-items:center}
.barLabel{font-size:13px;color:#334a72;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chart{padding:18px}
.historyRow{display:grid;grid-template-columns:1fr auto auto;gap:12px;padding:12px 0;border-top:1px solid #edf2fb;align-items:center}
.historyRow:first-child{border-top:0}
.toast{
  position:fixed;right:22px;bottom:22px;z-index:90;padding:12px 14px;border-radius:14px;
  background:#102246;color:#fff;box-shadow:var(--shadow-lg)
}
.toast.error{background:#8f1239}
.copyright{margin-top:20px;font-size:11px;color:var(--muted)}
.mobileNav{display:none}