.dot{aspect-ratio:1;border-radius:4px;background:var(--line);cursor:pointer;border:none;padding:0;position:relative;transition:transform .12s ease}.dot:hover{transform:scale(1.15)}.dot.done{background:var(--green)}.dot.current{outline:2px solid var(--amber);outline-offset:2px}.nav-btns{display:flex;gap:8px}.qcard{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:16px}.qmeta{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.pill{display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--green-soft);color:var(--green)}.qnum{font-size:13px;color:var(--ink-soft)}.qtext{font-family:"Fraunces",serif;font-size:19px;font-weight:500;line-height:1.35;margin:0 0 16px}.options{display:flex;flex-direction:column;gap:9px}.opt{text-align:left;background:#fcfcfa;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-family:inherit;font-size:14.5px;color:var(--ink);cursor:pointer;transition:border-color .12s ease,background .12s ease}.opt:hover:not(:disabled){border-color:var(--green)}.opt:disabled{cursor:default}.opt.correct{background:var(--green-soft);border-color:var(--green);font-weight:600}.opt.incorrect{background:var(--red-soft);border-color:var(--red)}.opt.dim{opacity:.55}.explain{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);font-size:14px;color:var(--ink-soft);line-height:1.5;display:none}.explain.show{display:block}.explain b{color:var(--ink)}