:root{--bg: #0d1117;--panel: #161b22;--panel-2: #1c2129;--border: #30363d;--text: #c9d1d9;--muted: #8b949e;--green: #3fb950;--yellow: #d29922;--red: #f85149;--blue: #58a6ff;--purple: #bc8cff;--orange: #ffa657;--mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace}*{box-sizing:border-box}button,input,textarea,a,summary,label{touch-action:manipulation}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--mono);font-size:15px;line-height:1.5}#app{max-width:680px;margin:0 auto;padding:0 16px 48px}.top{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--border);margin-bottom:18px}.brand{font-weight:700;letter-spacing:.5px}.brand .accent{color:var(--green)}.top-actions{display:flex;align-items:center;gap:8px}.streak{color:var(--muted);font-size:14px;margin-right:4px}.icon-btn{background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:6px;width:32px;height:32px;cursor:pointer;font-family:var(--mono);font-size:15px}.icon-btn:hover{border-color:var(--muted)}.meta{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:10px}.meta .date{margin-left:auto}.chip{padding:1px 8px;border-radius:10px;font-size:12px;border:1px solid}.chip.easy{color:var(--green);border-color:var(--green)}.chip.medium{color:var(--yellow);border-color:var(--yellow)}.chip.hard{color:var(--red);border-color:var(--red)}.editor{background:var(--panel);border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:18px}.editor-bar{display:flex;align-items:center;gap:6px;padding:8px 12px;border-bottom:1px solid var(--border);background:var(--panel-2)}.dot{width:11px;height:11px;border-radius:50%;display:inline-block}.dot.r{background:#f85149}.dot.y{background:#d29922}.dot.g{background:#3fb950}.filename{color:var(--muted);font-size:12px;margin-left:8px}.code{margin:0;padding:14px 16px;overflow-x:auto;font-size:14px;line-height:1.6}.tk-kw{color:#ff7b72}.tk-str{color:#a5d6ff}.tk-num{color:var(--blue)}.tk-com{color:var(--muted);font-style:italic}.tk-fn{color:var(--purple)}.attempt{margin-bottom:12px}.attempt-head{color:var(--muted);font-size:12px;margin-bottom:4px;display:flex;gap:10px}.line-hint{color:var(--yellow)}.gline{padding:3px 10px;border-left:3px solid var(--border);background:var(--panel);white-space:pre-wrap;font-size:14px}.gline+.gline{margin-top:2px}.gline.correct{border-left-color:var(--green);background:#3fb9501f}.gline.present{border-left-color:var(--yellow);background:#d299221f}.gline.wrong{border-left-color:var(--red);background:#f851491a}.entry-label{display:block;color:var(--green);font-size:14px;margin-bottom:6px}#guess{width:100%;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-family:var(--mono);font-size:16px;resize:vertical}#guess:focus{outline:none;border-color:var(--green)}.entry-row{display:flex;justify-content:space-between;align-items:center;margin-top:8px}.hint{color:var(--muted);font-size:12px}.primary{background:var(--green);color:#04260f;border:none;border-radius:6px;padding:8px 16px;font-family:var(--mono);font-weight:700;font-size:14px;cursor:pointer}.primary:hover{filter:brightness(1.1)}.results{border:1px solid var(--border);border-radius:8px;padding:16px;background:var(--panel)}.results.win{border-color:var(--green)}.results.lose{border-color:var(--red)}.verdict{font-weight:700;margin-bottom:10px}.win .verdict{color:var(--green)}.lose .verdict{color:var(--red)}.terminal{background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:10px 12px;margin-bottom:12px;font-size:14px}.term-line{white-space:pre-wrap}.term-line.prompt{color:var(--muted)}.why{font-size:13.5px;color:var(--text);background:var(--panel-2);border-radius:6px;padding:10px 12px;margin-bottom:12px}.why-label{color:var(--orange);font-weight:700;margin-right:6px}.dist{margin-bottom:12px}.dist-title{margin:0 0 8px;font-size:12px;color:var(--muted);font-weight:400}.bar.mine{background:var(--blue);color:#04121f}.dist-rank{font-size:13px;margin-top:8px;color:var(--muted)}.dist-rank b{color:var(--green)}.dist-rank.note{font-style:italic}.results-row{display:flex;justify-content:space-between;align-items:center}.countdown{color:var(--muted);font-size:13px}#cd{color:var(--text)}.overlay{position:fixed;inset:0;background:#010409b3;display:flex;align-items:center;justify-content:center;z-index:10}.overlay.hidden{display:none}.modal{position:relative;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:20px 24px;width:min(420px,calc(100vw - 48px));max-height:80vh;overflow-y:auto}.modal h2{margin:0 0 12px;font-size:17px}.modal h3{margin:16px 0 8px;font-size:13px;color:var(--muted)}.modal p{font-size:13.5px}.modal code{color:var(--blue)}.close{position:absolute;top:10px;right:12px;background:none;border:none;color:var(--muted);font-size:20px;cursor:pointer}.legend{display:flex;flex-direction:column;gap:4px}.sync-hint{color:var(--muted);font-size:12.5px;margin:6px 0}.sync-code{font-size:13px;margin:6px 0}.sync-code b{color:var(--green);font-family:var(--mono);-webkit-user-select:all;user-select:all}.sync-actions{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0}.sync-enter{display:flex;gap:6px;margin:8px 0}.sync-enter input,#sync-import-box{flex:1;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 8px;font-family:var(--mono);font-size:16px}#sync-import-box{width:100%;resize:vertical;margin:6px 0}.mini{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:5px 10px;font-family:var(--mono);font-size:12.5px;cursor:pointer}.mini:hover{border-color:var(--muted)}.mini.primary{background:var(--green);color:#04260f;border-color:var(--green);font-weight:700}.mini.danger{color:var(--red)}.sync-msg{color:var(--muted);font-size:12px;min-height:14px;margin:4px 0 0}.sync-advanced{margin-top:12px}.sync-advanced summary{color:var(--muted);font-size:12.5px;cursor:pointer}.back-link{background:none;border:none;color:var(--blue);font-family:var(--mono);font-size:13px;cursor:pointer;padding:0 0 8px}.arch-count{color:var(--muted);font-size:13px;margin:0 0 10px}.tabs{display:flex;gap:6px;margin-bottom:12px}.tab{flex:1;background:var(--panel-2);color:var(--muted);border:1px solid var(--border);border-radius:6px;padding:6px;font-family:var(--mono);font-size:12.5px;cursor:pointer}.tab.on{color:var(--text);border-color:var(--green)}.arch-month{margin-bottom:14px}.arch-month-name{color:var(--muted);font-size:12px;margin-bottom:6px}.arch-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}.arch-cell{aspect-ratio:1;border:1px solid var(--border);border-radius:5px;background:var(--panel-2);color:var(--muted);font-family:var(--mono);font-size:12px;cursor:pointer}.arch-cell.solved{background:#3fb95038;border-color:var(--green);color:var(--text)}.arch-cell.failed{background:#f8514926;border-color:var(--red);color:var(--text)}.arch-cell:hover{border-color:var(--muted)}.til-item{border-left:3px solid var(--green);background:var(--panel-2);border-radius:0 6px 6px 0;padding:8px 12px;margin-bottom:8px}.til-head{font-size:12.5px;color:var(--muted);margin-bottom:4px}.til-why{font-size:13px}.badges{display:flex;flex-wrap:wrap;gap:8px}.badge{display:flex;align-items:center;gap:5px;padding:5px 9px;border:1px solid var(--border);border-radius:14px;font-size:12px}.badge.off{opacity:.32;filter:grayscale(1)}.badge.on{border-color:var(--green)}.badge-icon{font-size:14px}.season-head{font-size:13px;display:flex;align-items:baseline;gap:6px}.season-head b{color:var(--purple)}.season-count{margin-left:auto;color:var(--muted)}.season-bar{height:8px;background:var(--panel-2);border-radius:4px;overflow:hidden;margin:8px 0}.season-fill{height:100%;background:var(--purple)}.boot,.load-error{color:var(--muted);padding:40px 16px;text-align:center}.load-error{color:var(--red)}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.shake{animation:shake .25s;border-color:var(--red)}.foot{margin-top:22px;padding-top:14px;border-top:1px solid var(--border)}.foot-links{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}.foot-links a,.linkish{color:var(--muted);font-size:12.5px;text-decoration:none;background:none;border:none;font-family:var(--mono);cursor:pointer;padding:0}.foot-links a:hover,.linkish:hover{color:var(--text)}.foot-msg{color:var(--muted);font-size:12px;text-align:center;margin:8px 0 0}.foot-msg:empty{display:none}.cta-strip{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:14px;padding-top:12px;border-top:1px solid var(--border)}.cta-lead{color:var(--muted);font-size:12.5px;font-style:italic}.cta-msg{color:var(--muted);font-size:12px;flex-basis:100%;min-height:0}.cta-msg:empty{display:none}.giscus{margin-top:16px}:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.modal:focus{outline:none}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center}.stat-grid b{display:block;font-size:22px}.stat-grid span{color:var(--muted);font-size:11.5px}.bar-row{display:flex;align-items:center;gap:8px;margin-bottom:4px}.bar-label{color:var(--muted);width:12px}.bar{background:var(--green);color:#04260f;font-size:12px;font-weight:700;border-radius:3px;padding:1px 6px;min-width:14px}@media(max-width:480px){body{font-size:14px}.meta .topic{display:none}}