:root{--bg:#F6F4EE;--surface:#FFFFFF;--ink:#232A28;--muted:#6B7572;--line:#DAD6CA;--accent:#0E5A54;--accent-ink:#FFFFFF;--ok:#0E6E46;--ok-bg:#E2F1E8;--warn:#8A5B10;--warn-bg:#F6EBD3;--bad:#A13526;--bad-bg:#F6E2DD;--pend-bg:#ECEAE2;--amber:#C98A1B;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}@media(prefers-color-scheme:dark){:root{color-scheme:dark;--bg:#0F1D1B;--surface:#162926;--ink:#E8EFEA;--muted:#93A39E;--line:#2A403C;--accent:#4FB8A8;--accent-ink:#0B1715;--ok:#7FD6A8;--ok-bg:#15352A;--warn:#E8BE6B;--warn-bg:#39300F;--bad:#F0998A;--bad-bg:#3D1F19;--pend-bg:#1E3330;--amber:#E3A33B}}*{box-sizing:border-box}html{scroll-padding-top:env(safe-area-inset-top,0px);height:100%}html,body{margin:0}body{background:var(--bg);color:var(--ink);min-height:100%;font-family:IBM Plex Sans Arabic,system-ui,-apple-system,Segoe UI,sans-serif;font-size:16px;line-height:1.55}.wrap{max-width:560px;margin:0 auto;padding:0 18px 48px}header{background:var(--accent);color:var(--accent-ink);border-bottom:6px solid var(--amber);margin-bottom:22px}header .wrap{padding-top:22px;padding-bottom:18px}h1{margin:0;font-weight:700;font-size:30px;line-height:1.1}h1 small{display:block;font-size:15px;font-weight:600;opacity:.88;margin-top:2px}.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:16px}.card h2{margin:0 0 10px;font-size:18px}.hint{color:var(--muted);font-size:14px}label{display:block;font-size:13.5px;color:var(--muted);margin:12px 0 4px}input[type=text],input[type=number],textarea,select{font:inherit;width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink)}textarea{min-height:80px;resize:vertical}input:focus-visible,textarea:focus-visible,button:focus-visible,select:focus-visible{outline:3px solid var(--amber);outline-offset:2px}.row2{display:flex;gap:10px}.row2>*{flex:1}button{font:inherit;font-weight:700;cursor:pointer;border-radius:10px;border:1px solid transparent;padding:12px 18px}.btn{background:var(--accent);color:var(--accent-ink);width:100%;margin-top:14px;font-size:17px}.btn[disabled]{opacity:.55}.btn2{background:transparent;color:var(--accent);border-color:var(--accent);width:100%;margin-top:10px}.btn3{background:transparent;color:var(--muted);border-color:var(--line);padding:8px 14px;font-weight:600;font-size:14px}.progress{color:var(--muted);font-size:14px;margin-top:10px;white-space:pre-line}.qhead{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px}.qnum{font-weight:700;font-size:14px;color:var(--muted)}.qtype{font-size:13px;font-weight:700;color:var(--warn);background:var(--warn-bg);border-radius:999px;padding:2px 12px}.bigplay{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:20px;font-size:19px;margin:10px 0 4px;background:var(--accent);color:var(--accent-ink);border-radius:14px}.bigplay.playing{background:var(--amber);color:#241a05}.clipbar{height:8px;background:var(--pend-bg);border-radius:999px;overflow:hidden;margin:10px 0 2px}.clipbar div{height:100%;width:0%;background:var(--accent)}.cliptime{font-size:12.5px;color:var(--muted);text-align:right;font-variant-numeric:tabular-nums}.djnote{font-size:13px;color:var(--muted);margin-top:6px}.reveal{border-left:4px solid var(--amber);padding:4px 0 4px 14px;margin:8px 0 14px}.reveal .t{font-weight:700;font-size:19px}.reveal .sub{color:var(--muted)}.reveal .movie{margin-top:4px;font-weight:600}.mine{background:var(--pend-bg);border-radius:10px;padding:10px 14px;margin-bottom:12px}.mine b{font-size:13px;color:var(--muted);display:block;margin-bottom:2px}.mine .ans{font-size:16px}.gradegrid{display:flex;flex-direction:column;gap:8px}.grade{display:flex;align-items:center;gap:10px;font-size:15.5px;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px 12px}.grade input{width:22px;height:22px;accent-color:var(--accent)}.grade .pts{margin-left:auto;color:var(--muted);font-size:13px;white-space:nowrap}.scorebig{font-size:64px;font-weight:700;text-align:center;line-height:1;margin:10px 0 2px}.scorename{text-align:center;font-size:20px;font-weight:700}.scoresub{text-align:center;color:var(--muted)}.breakdown{margin-top:16px}.breakdown .li{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px solid var(--line);font-size:14.5px}.breakdown .li:last-child{border-bottom:none}.breakdown .pts{font-variant-numeric:tabular-nums;font-weight:700}.linkbox{font-size:13px;word-break:break-all;background:var(--bg);border:1px dashed var(--line);border-radius:10px;padding:10px 12px;margin-top:8px;color:var(--muted)}.copied{color:var(--ok);font-weight:700}.codebox{font-size:44px;font-weight:700;letter-spacing:8px;text-align:center;background:var(--bg);border:2px solid var(--accent);border-radius:14px;padding:14px 8px 14px 16px;margin-top:8px;color:var(--accent);font-variant-numeric:tabular-nums;-webkit-user-select:all;user-select:all}.codebox:empty{display:none}@media(prefers-reduced-motion:no-preference){.bigplay{transition:background .15s}}