.qz{--q-bg:#f3f5f8;--q-bg2:#e9edf3;--q-panel:#fff;--q-panel2:#f7f9fc;--q-line:#dbe1ea;--q-line2:#c7d0dc;--q-ink:#172033;--q-dim:#4c586c;--q-mute:#7a8598;--q-accent:#2f5bea;--q-accent-ink:#fff;--q-accent-soft:#e4ebfd;--q-ok:#1d8f52;--q-ok-soft:#e1f4ea;--q-bad:#cc3d3d;--q-bad-soft:#fbe7e7;--q-warn:#b7791f;--q-paper:#fff;--q-qr:#10131a;--q-qr-unknown:#d9dee6;--q-shadow:0 18px 40px -26px rgba(20,30,50,.45);--q-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;--q-sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color-scheme:light;min-height:100vh;background:linear-gradient(180deg,var(--q-bg),var(--q-bg2));color:var(--q-ink);font-family:var(--q-sans);font-size:15px;line-height:1.55}.qz[data-theme=terminal]{--q-bg:#0a0d13;--q-bg2:#0c1018;--q-panel:#121824;--q-panel2:#171f2e;--q-line:#222b3c;--q-line2:#2e3a52;--q-ink:#d8e1ee;--q-dim:#97a3b8;--q-mute:#67738a;--q-accent:#ffb020;--q-accent-ink:#1b1304;--q-accent-soft:#3a2a0c;--q-ok:#46e08a;--q-ok-soft:#10281b;--q-bad:#ff6b6b;--q-bad-soft:#341519;--q-warn:#ffb020;--q-paper:#f1ede4;--q-qr:#12100c;--q-qr-unknown:#cfc7b6;--q-shadow:0 24px 60px -30px #000;color-scheme:dark;background:radial-gradient(1100px 520px at 85% -10%,#13223d 0,transparent 60%),radial-gradient(800px 480px at -10% 110%,#1b1222 0,transparent 55%),var(--q-bg)}.qz[data-theme=space]{--q-bg:#0b1026;--q-bg2:#0e1433;--q-panel:#141c3f;--q-panel2:#19224a;--q-line:#26305c;--q-line2:#334078;--q-ink:#e4e8ff;--q-dim:#a4acd6;--q-mute:#7079a8;--q-accent:#8fd3ff;--q-accent-ink:#081330;--q-accent-soft:#1b2d5c;--q-ok:#5eead4;--q-ok-soft:#0f3340;--q-bad:#ff8fa3;--q-bad-soft:#3a1a33;--q-warn:#ffd166;--q-paper:#fff;--q-qr:#0b1026;--q-qr-unknown:#d5daf0;--q-shadow:0 24px 60px -30px #000;color-scheme:dark;background:radial-gradient(2px 2px at 12% 18%,#ffffff66 50%,transparent 51%),radial-gradient(1.5px 1.5px at 72% 12%,#ffffff55 50%,transparent 51%),radial-gradient(1.5px 1.5px at 38% 64%,#ffffff44 50%,transparent 51%),radial-gradient(2px 2px at 88% 72%,#ffffff55 50%,transparent 51%),radial-gradient(900px 500px at 80% -20%,#2b2f7a 0,transparent 60%),var(--q-bg)}.qz *,.qz :after,.qz :before{box-sizing:border-box}.qz-wrap{max-width:1160px;margin:0 auto;padding-inline:16px;padding-block:22px 60px}.qz h1,.qz h2{margin:0;text-wrap:balance;letter-spacing:-.01em}.qz h1{font-size:clamp(22px,3.2vw,30px);line-height:1.2}.qz h1,.qz h2{font-weight:700}.qz h2{font-size:20px;line-height:1.25}.qz p{margin:0}.qz a{color:inherit}.qz :focus-visible{outline:2px solid var(--q-accent);outline-offset:2px}.qz-eyebrow{display:block;font-family:var(--q-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--q-accent)}.qz-soft{color:var(--q-dim)}.qz-small{font-size:13px}.qz-mono{font-family:var(--q-mono);letter-spacing:.08em}.qz-fine{font-size:12px;color:var(--q-mute);margin-top:18px!important}.qz-flash{background:var(--q-bad-soft);color:var(--q-bad);border-radius:10px;padding:10px 12px;font-size:14px;margin-top:12px!important}.qz-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 15px/1 var(--q-sans);border:1px solid transparent;border-radius:10px;padding:12px 18px;cursor:pointer;background:var(--q-accent);color:var(--q-accent-ink);text-decoration:none;transition:filter .15s,transform .1s}.qz-btn:hover{filter:brightness(1.07)}.qz-btn:active{transform:translateY(1px)}.qz-btn:disabled{opacity:.5;cursor:default}.qz-btn--ghost{background:transparent;border-color:var(--q-line2);color:var(--q-ink);font-weight:500}.qz-btn--warn{background:var(--q-warn);color:#1d1404}.qz-link{background:none;border:none;padding:0;color:var(--q-mute);text-decoration:underline;text-underline-offset:3px;cursor:pointer;font:inherit;font-size:13px}.qz input,.qz textarea{font:16px/1.3 var(--q-sans);color:var(--q-ink);background:var(--q-panel2);border:1px solid var(--q-line2);border-radius:10px;padding:12px 13px;width:100%}.qz input:focus{outline:none;border-color:var(--q-accent)}.qz-gate{min-height:100vh;display:grid;place-items:center;padding:24px 16px}.qz-gate-card{width:min(520px,100%);background:var(--q-panel);border:1px solid var(--q-line);border-radius:18px;padding:28px 24px;box-shadow:var(--q-shadow);display:flex;flex-direction:column;gap:12px}.qz-intro{color:var(--q-dim);font-size:15.5px;line-height:1.6;max-width:64ch}.qz-intro--board{margin:16px 0 0!important;border-left:2px solid var(--q-accent);padding:2px 0 2px 14px}.qz-form{display:flex;flex-direction:column;gap:8px;margin-top:6px}.qz-form .qz-btn{margin-top:8px}.qz-form--row{flex-direction:row;margin-top:10px}.qz-form--row .qz-btn{margin-top:0;flex:none}.qz-label{font-size:13px;color:var(--q-dim);margin-top:4px}.qz-have-code{margin-top:8px;font-size:14px}.qz-have-code summary{cursor:pointer;color:var(--q-dim)}.qz-preview-bar{display:flex;flex-wrap:wrap;gap:6px 16px;justify-content:space-between;align-items:center;background:var(--q-accent);color:var(--q-accent-ink);font-size:13.5px;font-weight:500;padding:9px 16px}.qz-preview-bar a{font-weight:700}.qz-demo-actions{display:inline-flex;flex-wrap:wrap;align-items:center;gap:8px 18px}.qz-demo-reset{background:none;border:none;padding:0;font:inherit;color:inherit;text-decoration:underline;text-underline-offset:3px;cursor:pointer;opacity:.8}.qz-head{display:flex;flex-wrap:wrap;gap:18px 28px;align-items:center;justify-content:space-between;background:linear-gradient(180deg,var(--q-panel2),var(--q-panel));border:1px solid var(--q-line);border-radius:18px;padding:20px 22px}.qz-head-main{display:flex;flex-direction:column;gap:6px;min-width:0;flex:1 1 320px}.qz-code{font:600 13px var(--q-mono);letter-spacing:.12em;background:var(--q-panel2);border:1px dashed var(--q-line2);color:var(--q-ink);border-radius:7px;padding:2px 8px;cursor:pointer}.qz-score{flex:0 1 260px;display:flex;flex-direction:column;gap:8px;min-width:220px}.qz-rank{display:inline-flex;align-items:center;gap:9px;align-self:flex-start;font:600 13.5px var(--q-mono);border:1px solid var(--q-line2);border-radius:999px;padding:6px 13px}.qz-rank-dot{width:9px;height:9px;border-radius:50%;background:var(--q-accent);box-shadow:0 0 10px var(--q-accent)}.qz-points{font-family:var(--q-mono);color:var(--q-dim);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.qz-points b{font-size:26px;color:var(--q-ink)}.qz-bar{height:8px;border-radius:999px;background:var(--q-bg2);border:1px solid var(--q-line);overflow:hidden}.qz-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--q-accent),var(--q-ok));transition:width .6s cubic-bezier(.2,.7,.2,1)}.qz-score-foot{display:flex;justify-content:space-between;font:12px var(--q-mono);color:var(--q-mute)}.qz-next{font-size:12.5px;color:var(--q-dim)}.qz-welcome{margin-top:16px;display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between;border:1px solid var(--q-ok);background:var(--q-ok-soft);border-radius:14px;padding:14px 18px}.qz-code-big{font:700 20px var(--q-mono);letter-spacing:.2em;color:var(--q-ok);margin-left:6px}.qz-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);grid-gap:18px;gap:18px;margin-top:18px;align-items:start}@media (max-width:860px){.qz-grid{grid-template-columns:minmax(0,1fr)}}.qz-side{display:flex;flex-direction:column;gap:18px}.qz-card{background:var(--q-panel);border:1px solid var(--q-line);border-radius:16px;padding:0 0 16px}.qz-card-h{display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--q-line);margin-bottom:14px}.qz-card-h .qz-eyebrow{color:var(--q-mute)}.qz-card-note{margin-left:auto;font:12px var(--q-mono);color:var(--q-dim)}.qz-card>.qz-final,.qz-card>p,.qz-days{padding-inline:16px}.qz-days{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));grid-gap:10px;gap:10px}.qz-day{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;min-height:112px;padding:10px 11px;border-radius:12px;border:1px solid var(--q-line2);background:linear-gradient(160deg,var(--q-panel2),var(--q-panel));color:var(--q-ink);cursor:pointer;font-family:var(--q-sans);transition:transform .12s,border-color .2s,box-shadow .2s}.qz-day:hover:not(:disabled){transform:translateY(-2px);border-color:var(--q-accent);box-shadow:var(--q-shadow)}.qz-day-top{display:flex;width:100%;justify-content:space-between;font:11px var(--q-mono);color:var(--q-mute);text-transform:uppercase;letter-spacing:.08em}.qz-day-star{color:var(--q-warn)}.qz-day-n{font:600 24px/1.1 var(--q-mono);margin-top:2px}.qz-day-topic{font-size:12px;overflow-wrap:anywhere;-webkit-hyphens:auto;hyphens:auto;color:var(--q-dim);line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.qz-day-state{margin-top:auto;font:11px var(--q-mono);color:var(--q-mute)}.qz-day.is-locked{cursor:default;opacity:.55;background:transparent;border-style:dashed}.qz-day.is-today{border-color:var(--q-accent);box-shadow:0 0 0 3px var(--q-accent-soft)}.qz-day.is-today .qz-day-state{color:var(--q-accent);font-weight:600}.qz-day.is-done{border-color:var(--q-ok);background:var(--q-ok-soft)}.qz-day.is-done .qz-day-n,.qz-day.is-done .qz-day-state{color:var(--q-ok)}.qz-day.is-done:after{content:"✓";position:absolute;right:10px;bottom:8px;color:var(--q-ok);font-weight:700}.qz-day.is-missed{opacity:.7}.qz-legend{margin-top:14px!important;font-size:13px;color:var(--q-mute)}.qz-legend b{color:var(--q-ok)}.qz-qr{margin:0 16px;padding:12px;border-radius:12px;background:var(--q-paper);box-shadow:inset 0 0 0 1px rgba(0,0,0,.06)}.qz-qr svg{display:block;width:100%;height:auto;max-width:360px;margin:0 auto}.qz-qr-paper{fill:var(--q-paper)}.qz-qr-unknown{fill:var(--q-qr-unknown)}.qz-qr-dark{fill:var(--q-qr)}.qz-qr-born{animation:qz-born 1.6s ease-out both}@keyframes qz-born{0%{fill:var(--q-accent);opacity:.2}40%{fill:var(--q-accent);opacity:1}to{fill:var(--q-qr)}}.qz-qr.is-complete{box-shadow:0 0 0 3px var(--q-ok)}.qz-final{margin-top:14px;display:flex;flex-direction:column;gap:10px;align-items:flex-start}.qz-final b{color:var(--q-ok)}.qz-secret{font-family:var(--q-mono);font-size:14px;border:1px dashed var(--q-ok);border-radius:10px;padding:10px 12px}.qz-card>.qz-soft.qz-small{margin-top:12px}.qz-lead,.qz-ranks{list-style:none;margin:0;padding:0 16px;display:flex;flex-direction:column;gap:6px}.qz-ranks li{display:grid;grid-template-columns:48px 1fr;grid-gap:10px;gap:10px;align-items:baseline;padding:8px 10px;border-radius:10px;color:var(--q-dim)}.qz-ranks li b{color:var(--q-ink);font-weight:600}.qz-ranks li em{display:block;font-style:normal;font-size:12.5px;color:var(--q-dim)}.qz-rank-pct{font:12px var(--q-mono);color:var(--q-mute)}.qz-ranks li.is-past{opacity:.6}.qz-ranks li.is-me{background:var(--q-accent-soft);outline:1px solid var(--q-accent)}.qz-lead li{display:grid;grid-template-columns:1fr auto 48px;grid-gap:10px;gap:10px;font-size:14px;padding:6px 10px;border-radius:8px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.qz-lead li b{text-align:right;font-family:var(--q-mono)}.qz-lead-days{color:var(--q-mute);font-size:12.5px}.qz-lead li.is-me{background:var(--q-accent-soft)}.qz-logout{text-align:center}.qz-scrim{position:fixed;inset:0;z-index:50;background:rgba(5,8,14,.62);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;align-items:flex-start;justify-content:center;overflow:auto;padding:24px 12px}.qz-modal{width:min(620px,100%);margin:auto 0;background:var(--q-panel);border:1px solid var(--q-line2);border-radius:18px;box-shadow:var(--q-shadow);overflow:hidden}.qz-modal-h{display:flex;gap:12px;align-items:flex-start;justify-content:space-between;padding:18px 20px 14px;border-bottom:1px solid var(--q-line)}.qz-modal-h h2{margin-top:5px}.qz-x{flex:none;width:36px;height:36px;border-radius:10px;border:1px solid var(--q-line2);background:transparent;color:var(--q-dim);cursor:pointer;font-size:15px}.qz-tabs{display:flex;gap:6px;padding:12px 20px 0}.qz-tabs button{font:500 13.5px var(--q-sans);border:1px solid var(--q-line2);background:transparent;color:var(--q-dim);border-radius:999px;padding:7px 13px;cursor:pointer}.qz-tabs button.is-on{background:var(--q-accent-soft);border-color:var(--q-accent);color:var(--q-ink)}.qz-modal-b{padding:16px 20px 22px}.qz-task{display:flex;flex-direction:column;gap:14px}.qz-task.is-shake{animation:qz-shake .4s}@keyframes qz-shake{20%,60%{transform:translateX(-5px)}40%,80%{transform:translateX(5px)}}.qz-story{white-space:pre-line;font-size:14.5px;color:var(--q-dim);line-height:1.6;border-left:2px solid var(--q-accent);padding:4px 0 4px 14px;background:linear-gradient(90deg,var(--q-accent-soft),transparent 80%);border-radius:0 8px 8px 0}.qz-prompt{white-space:pre-line;font-size:16px;font-weight:500}.qz-code-wrap{overflow-x:auto;border-radius:10px;border:1px solid var(--q-line);background:var(--q-bg)}.qz-codeblock{margin:0;padding:12px 14px;font:13.5px/1.55 var(--q-mono);color:var(--q-ink);white-space:pre}.qz-opts{display:flex;flex-direction:column;gap:8px}.qz-opt{display:flex;align-items:center;gap:11px;text-align:left;font:15px/1.4 var(--q-sans);color:var(--q-ink);background:var(--q-panel2);border:1px solid var(--q-line2);border-radius:11px;padding:11px 13px;cursor:pointer}.qz-opt:hover:not(:disabled){border-color:var(--q-dim)}.qz-opt.is-on{border-color:var(--q-accent);background:var(--q-accent-soft)}.qz-opt-box{flex:none;width:20px;height:20px;display:grid;place-items:center;border:1.5px solid var(--q-line2);border-radius:50%;font-size:11px;color:var(--q-accent-ink)}.qz-opt.is-multi .qz-opt-box{border-radius:6px}.qz-opt.is-on .qz-opt-box{background:var(--q-accent);border-color:var(--q-accent)}.qz-answer{font-family:var(--q-mono)!important;font-size:17px!important}.qz-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.qz-task-meta{margin-left:auto;font:12px var(--q-mono);color:var(--q-mute)}.qz-hint{font-size:14px;background:var(--q-accent-soft);border-radius:10px;padding:10px 12px}.qz-msg{font:500 14px var(--q-mono)}.qz-msg.is-ok{color:var(--q-ok)}.qz-msg.is-no{color:var(--q-bad)}.qz-msg.is-info{color:var(--q-dim)}.qz-solved{border:1px solid var(--q-ok);background:var(--q-ok-soft);border-radius:12px;padding:12px 14px}.qz-solved b{color:var(--q-ok);font-family:var(--q-mono)}.qz-reveal{margin-top:8px!important;white-space:pre-line;font-size:14.5px}.qz-toast{position:fixed;left:50%;bottom:calc(22px + env(safe-area-inset-bottom, 0px));transform:translate(-50%,20px);opacity:0;pointer-events:none;z-index:60;background:var(--q-panel2);border:1px solid var(--q-ok);color:var(--q-ok);font:500 13.5px var(--q-mono);padding:11px 16px;border-radius:12px;box-shadow:var(--q-shadow);transition:.3s;max-width:calc(100vw - 32px)}.qz-toast.is-on{opacity:1;transform:translate(-50%)}.qz-cert-page{padding:24px 16px 60px}.qz-cert-actions{margin:0 auto 16px;justify-content:space-between;gap:12px;flex-wrap:wrap}.qz-cert,.qz-cert-actions{max-width:820px;display:flex;align-items:center}.qz-cert{margin:0 auto;background:#fff;color:#172033;border:1px solid var(--q-line);border-radius:6px;padding:56px 48px;text-align:center;flex-direction:column;gap:8px;box-shadow:var(--q-shadow);outline:1px solid var(--q-line);outline-offset:-14px}.qz-cert h1{font-size:clamp(28px,5vw,44px);margin:8px 0}.qz-cert h2{font-size:22px}.qz-cert-lead{color:#4c586c;font-size:15px}.qz-cert-rank{margin-top:18px;display:flex;flex-direction:column;align-items:center;gap:2px}.qz-cert-rank span{font:11px var(--q-mono);letter-spacing:.16em;text-transform:uppercase;color:#7a8598}.qz-cert-rank b{font-size:26px;color:#2f5bea}.qz-cert-rank em{font-style:normal;color:#4c586c}.qz-cert-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 32px;margin:22px 0 0}.qz-cert-stats dt{font:11px var(--q-mono);color:#7a8598;text-transform:uppercase;letter-spacing:.1em}.qz-cert-stats dd{margin:2px 0 0;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.qz-cert-foot{width:100%;display:flex;justify-content:space-between;gap:24px;margin-top:44px}.qz-cert-foot div{display:flex;flex-direction:column;border-top:1px solid #c7d0dc;padding-top:6px;min-width:180px}.qz-cert-foot small{color:#7a8598}@media print{.qz-cert-actions{display:none}.qz-cert-page{padding:0;background:#fff}.qz-cert{box-shadow:none;border:none}}@media (max-width:560px){.qz-head{padding:16px}.qz-days{grid-template-columns:repeat(auto-fill,minmax(92px,1fr))}.qz-cert{padding:36px 20px}}@media (prefers-reduced-motion:reduce){.qz-qr-born,.qz-task.is-shake{animation:none}.qz-bar i,.qz-day,.qz-toast{transition:none}}