/* kubewrecked — white-on-black terminal, Kubernetes-blue accent, three-format daily drill */ :root{ --bg:#0b0b0c; --bg-deep:#050506; --panel:#141416; --fg:#f4f4f5; --dim:#a1a1a6; --mut:#8a8a90; --amber:#ffb000; --green:#27c93f; --red:#ff5f56; --blue:#326ce5; --blue-lite:#6ea8ff; --blue-glow:rgba(50,108,229,.30); --line:#2a2a2e; --glow:rgba(255,255,255,.16); --mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Mono",Menlo,Consolas,monospace; } *{box-sizing:border-box;} html{height:100%;} /* min-height (not height): body must be free to grow TALLER than the viewport. With height:100% body is locked to viewport height, and because .crt is a flex item with overflow:hidden its auto min-height resolves to 0 — so a tall question (long .why) shrinks+clips the card instead of letting the page scroll, stranding the explanation and "next" button off-screen on mobile. */ body{min-height:100%;} body{margin:0; background:radial-gradient(120% 120% at 50% 0%,#141416 0%,var(--bg) 55%,var(--bg-deep) 100%); color:var(--fg);font-family:var(--mono);font-size:15px;line-height:1.5; display:flex;flex-direction:column;align-items:center;padding:24px 14px 48px; -webkit-font-smoothing:antialiased;} .crt{width:100%;max-width:560px;background:var(--bg);border:1px solid var(--line); border-radius:8px;overflow:hidden;position:relative; box-shadow:0 24px 60px -22px rgba(0,0,0,.85),inset 0 0 120px rgba(255,255,255,.02);} .crt::after{content:"";position:absolute;inset:0;pointer-events:none; background:repeating-linear-gradient(to bottom,rgba(0,0,0,0) 0 2px,rgba(0,0,0,.16) 3px,rgba(0,0,0,0) 4px); mix-blend-mode:multiply;opacity:.5;} .titlebar{display:flex;align-items:center;gap:8px;padding:9px 14px; background:linear-gradient(#161618,#101012);border-bottom:1px solid var(--line);} .dot{width:11px;height:11px;border-radius:50%;} .dot.r{background:#ff5f56;}.dot.y{background:#ffbd2e;}.dot.g{background:#27c93f;} .title{margin-left:6px;font-size:12px;letter-spacing:.5px;color:var(--dim);} .screen{padding:18px 16px 16px;} .head{display:flex;justify-content:space-between;align-items:baseline;} .task-no{font-size:12px;letter-spacing:.5px;color:var(--dim);text-transform:uppercase;} .timer{font-size:13px;color:var(--amber);text-shadow:0 0 6px rgba(255,176,0,.3);font-variant-numeric:tabular-nums;} .progress{display:flex;gap:6px;margin:10px 0 16px;} .pip{flex:1;height:4px;border-radius:2px;background:var(--line);} .pip.done{background:var(--green);box-shadow:0 0 6px rgba(39,201,63,.4);} .pip.wrong{background:var(--red);box-shadow:0 0 6px rgba(255,95,86,.4);} .pip.active{background:var(--fg);} /* min-height keeps the loading card a sensible size while the drill is fetched; it is NOT the CLS fix on its own — a single day's first-question content runs anywhere from ~360px (short MCQ) to ~800px (tall multi-chip build), so no fixed reserve can both cover the tall days and avoid a big gap on the short ones. The actual CLS fix is the visibility:hidden-until-.ready rule below, which stops the late-loaded content from shoving the visible footer/sponsor/legal down. #quiz is [hidden] on the result screen, so this adds no gap there. */ #quiz{min-height:360px;} /* CLS guard. The drill is fetched ~1s after first paint and its height varies wildly day to day, so any element rendered BELOW it would be shoved downward when the content lands — that single big downward jump was the CLS culprit (PageSpeed mobile, ~0.19 on a median day, ~0.35 on a build-heavy one). These trailing blocks keep their box (visibility:hidden still reserves layout), so they stay invisible until game.js renders the first screen and adds .ready to . An invisible element's movement is not counted toward CLS, so the one big shift becomes ~zero — with no reserved-space gap. They cross-fade in (opacity) once revealed; the snap-to-visible happens at their final position, so the fade itself shifts nothing. game.js requires JS to run at all (it fetches the drill), so gating these on JS-driven .ready costs nothing a no-JS visitor still had. */ .sponsor,footer.stats,.legal{transition:opacity .25s ease;} body:not(.ready) .sponsor, body:not(.ready) footer.stats, body:not(.ready) .legal{visibility:hidden;opacity:0;} @media (prefers-reduced-motion:reduce){.sponsor,footer.stats,.legal{transition:none;}} /* min-height reserves the single label line so the empty->"// recall it (1 of 3)" fill doesn't nudge the (visible) prompt down — that nudge was a small CLS contributor. The label is always one line, so this adds no gap. */ .qlabel{font-size:12px;color:var(--mut);margin:0 0 6px;min-height:1.5em;} .prompt{font-size:16px;margin:0 0 16px;text-shadow:0 0 6px var(--glow); border-left:2px solid var(--blue);padding-left:12px;white-space:pre-wrap;} .prompt code{color:var(--fg);background:var(--panel);padding:2px 6px;border-radius:3px;} /* MCQ + reverse options */ .opts{display:flex;flex-direction:column;gap:8px;} .opt{display:flex;align-items:center;gap:10px;text-align:left;width:100%; background:var(--panel);border:1px solid var(--line);border-radius:6px; padding:12px 14px;color:var(--fg);font-family:var(--mono);font-size:15px;cursor:pointer; transition:border-color .1s,background .1s;} .opt:hover{border-color:var(--dim);} .opt .key{color:var(--mut);min-width:18px;} .opt:disabled{cursor:default;} .opt.correct{border-color:var(--green);background:rgba(39,201,63,.10);} .opt.correct .key{color:var(--green);} .opt.wrong{border-color:var(--red);background:rgba(255,95,86,.10);} .opt.wrong .key{color:var(--red);} .opt.faded{opacity:.45;} /* chunk assembly */ .build{min-height:44px;display:flex;align-items:center;gap:6px;flex-wrap:wrap; background:var(--panel);border:1px dashed var(--mut);border-radius:6px;padding:10px 12px;margin-bottom:12px;} .build .pr{color:var(--blue-lite);} .build .ph{color:var(--mut);font-size:13px;} .built{display:inline-flex;gap:6px;flex-wrap:wrap;} .chiprow{display:flex;gap:8px;flex-wrap:wrap;} .chip{background:var(--panel);border:1px solid var(--line);border-radius:5px; padding:8px 12px;color:var(--fg);font-family:var(--mono);font-size:15px;cursor:pointer;} .chip:hover{border-color:var(--dim);} .chip.used{opacity:.35;pointer-events:none;} .chip.inbuild{background:#1c1c1f;border-color:var(--dim);} .submitwrap{margin-top:12px;display:flex;gap:10px;align-items:center;} .submitwrap .preview{flex:1;font-size:13px;color:var(--mut);min-width:0;overflow:hidden; text-overflow:ellipsis;white-space:nowrap;} /* #why stays empty during play — explanations live on the result screen (#recap), revealed by tapping the red/green squares. Kept as a collapsed, harmless element so game.js's el("why") references stay valid. */ .why{margin:14px 0 0;font-size:13px;color:var(--dim);border-left:2px solid var(--mut); padding-left:12px;min-height:1px;} .why:empty{margin:0;border:0;padding:0;min-height:0;} .next{margin-top:18px;display:flex;} /* game.js toggles this block via the `hidden` attribute (shown only once a question is answered). The UA rule [hidden]{display:none} and the .next class rule above have EQUAL specificity, so the author rule wins by origin — which left the "next →" button visible during the question and made it shift down when the async drill loaded (a CLS source). This higher-specificity rule restores the intended hide. */ .next[hidden]{display:none;} button.go{font-family:var(--mono);font-size:14px;cursor:pointer;background:transparent;color:var(--fg); border:1px solid var(--mut);border-radius:4px;padding:8px 16px;text-shadow:0 0 6px var(--glow); transition:background .12s;} button.go:hover{background:rgba(255,255,255,.08);} button.go:disabled{opacity:.4;cursor:default;} .next button.go{flex:1;padding:13px;font-size:15px;border-color:var(--fg);background:rgba(255,255,255,.06);} .next button.go:hover{background:rgba(255,255,255,.12);} /* result */ .result{text-align:center;padding:8px 0 4px;} .result h2{font-size:18px;margin:0 0 4px;text-shadow:0 0 6px var(--glow);} .score{font-size:32px;margin:8px 0 2px;font-variant-numeric:tabular-nums;} .time{color:var(--amber);font-size:15px;margin-bottom:14px;text-shadow:0 0 6px rgba(255,176,0,.3); font-variant-numeric:tabular-nums;} .squares{display:flex;gap:8px;justify-content:center;margin:8px 0 6px;flex-wrap:wrap;} .sq{display:inline-flex;align-items:center;justify-content:center; min-width:40px;min-height:40px;padding:4px;font-size:20px;font-weight:700;line-height:1; background:var(--panel);border:1px solid var(--line);border-radius:8px;color:var(--dim); cursor:pointer;transition:transform .1s,box-shadow .1s;} .sq.ok{background:rgba(39,201,63,.16);border-color:var(--green);color:var(--green);} .sq.miss{background:rgba(255,95,86,.16);border-color:var(--red);color:var(--red);} .sq:hover{transform:translateY(-2px);} .sq.sel{box-shadow:0 0 0 2px var(--fg);} .recaphint{font-size:12px;color:var(--mut);margin:0 0 8px;} .recap{text-align:left;max-width:380px;margin:0 auto 14px;background:var(--panel); border:1px solid var(--line);border-radius:6px;padding:12px 14px;font-size:13px;line-height:1.5;} .recap .recap-h{font-weight:600;} .recap code{background:#0d0d0f;padding:2px 6px;border-radius:3px;} .actions{display:flex;gap:14px;justify-content:center;align-items:center;flex-wrap:wrap;} .sharebox{margin:14px auto 0;max-width:330px;background:var(--panel);border:1px solid var(--line); border-radius:6px;padding:12px 14px;white-space:pre;font-size:14px;line-height:1.5;text-align:left;} .countdown{font-size:13px;color:var(--mut);} /* sponsor */ .sponsor{margin-top:22px;padding-top:14px;border-top:1px dashed var(--line); display:flex;align-items:center;gap:10px;} .sponsor-tag{font-size:11px;color:var(--mut);letter-spacing:.5px;} .sponsor-slot{display:inline-flex;align-items:center;gap:8px;min-height:34px;padding:6px 14px; border:1px dashed var(--mut);border-radius:4px;color:var(--dim);text-decoration:none;font-size:13px;} .sponsor-slot img{max-height:22px;width:auto;display:block;} .sponsor-slot:hover{border-color:var(--fg);color:var(--fg);} /* Placeholder swap: "your logo here" -> the (deliberately spaced) contact email on hover / focus / press. The two labels are grid-stacked in ONE cell, so the box is sized to the wider email and there is no layout shift; opacity cross-fades between them. Pure CSS — the strict CSP forbids inline JS — and works in every engine. :focus covers a real click (a mailto keeps the page, so the link stays focused); :active covers a touch press. When a real sponsor loads, game.js clears this markup entirely, so it only affects the empty-slot placeholder. */ .sl-swap{display:inline-grid;} .sl-swap>span{grid-area:1/1;text-align:center;transition:opacity .12s ease;} .sl-email{opacity:0;} .sponsor-slot:hover .sl-default, .sponsor-slot:focus .sl-default, .sponsor-slot:active .sl-default{opacity:0;} .sponsor-slot:hover .sl-email, .sponsor-slot:focus .sl-email, .sponsor-slot:active .sl-email{opacity:1;} @media (prefers-reduced-motion:reduce){.sl-swap>span{transition:none;}} /* stat bar */ /* transparent (not var(--panel)): inherit the card's own var(--bg) so the bar is the SAME colour as the card body — a flat panel still read as a distinct lighter band ("two colours"). The border-top is the only divider. */ .stats{display:flex;gap:18px;flex-wrap:wrap;padding:11px 16px;border-top:1px solid var(--line); background:transparent;font-size:13px;} /* one uniform text colour for the whole bar: the muted label (--mut) + bright glowing value (--fg) read as two colours. Both use --dim so the footer is a single flat colour. */ .stat .k,.stat .v{color:var(--dim);} a{color:var(--blue-lite);} kbd{font-family:var(--mono);font-size:.85em;background:var(--panel);border:1px solid var(--line); border-radius:3px;padding:1px 5px;} @media (max-width:480px){ body{font-size:14px;padding:12px 8px 32px;} .screen{padding:14px 12px;} .prompt{font-size:15px;} .stats{gap:12px;} } @media (prefers-reduced-motion:reduce){ .crt::after{display:none;} .sq:hover{transform:none;} } :focus-visible{outline:2px solid var(--blue-lite);outline-offset:2px;} .vh{position:absolute;width:1px;height:1px;margin:-1px;padding:0;border:0; clip:rect(0 0 0 0);clip-path:inset(50%);overflow:hidden;white-space:nowrap;} .legal{max-width:560px;margin:14px auto 0;padding:0 14px;font-family:var(--mono); font-size:9px;line-height:1.45;color:var(--dim);text-align:center;} /* clean-run confetti (3/3). Rules live in this same-origin sheet => style-src 'self' covers them. pointer-events:none on BOTH layer and pieces so the results UI underneath stays clickable. */ .confetti-layer{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:9999;} .confetti{position:absolute;top:-14px;width:8px;height:14px;pointer-events:none;opacity:0; will-change:transform,opacity;border-radius:1px; animation:confetti-fall var(--dur,3s) linear var(--delay,0s) forwards;} @keyframes confetti-fall{ 0%{transform:translate3d(0,-14px,0) rotate(0);opacity:1;} 100%{transform:translate3d(var(--drift,0),102vh,0) rotate(720deg);opacity:0;} } @media (prefers-reduced-motion: reduce){ .confetti-layer{display:none;} }