.bt{background:var(--bg);width:100%;min-height:100vh;color:var(--text);--bg:#f4f3f1;--mesh:radial-gradient(38% 32% at 18% 12%, #8cb4ff6b, transparent 70%), radial-gradient(42% 36% at 88% 20%, #ffb8d466, transparent 70%), radial-gradient(46% 40% at 30% 88%, #b2e8c866, transparent 72%), radial-gradient(40% 34% at 86% 84%, #ffdda861, transparent 72%);--veil:linear-gradient(180deg, #f4f3f100 0%, #f4f3f159 60%, #f4f3f1bf 100%);--text:#1c1c1e;--text-2:#00000080;--card-bg:#ffffff8c;--card-border:#ffffffb3;--card-shadow:0 1px 1px #00000008, 0 8px 24px -12px #28285038, inset 0 1px 1px #fff9;--head-grad:linear-gradient(180deg, #2a2a30, #5a5a66);--correct:#6aaa64;--present:#c9b458;--absent:#787c7e;--cell-border:#0000002e;--key-bg:#00000012;--key-text:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,SF Pro Display,system-ui,sans-serif;position:relative;overflow-x:hidden}html[data-theme=dark] .bt{--bg:#0d0d0f;--mesh:radial-gradient(40% 34% at 16% 10%, #6080e457, transparent 70%), radial-gradient(44% 38% at 90% 18%, #c45c9c4d, transparent 70%), radial-gradient(48% 42% at 28% 90%, #3c9e7c47, transparent 72%), radial-gradient(42% 36% at 88% 86%, #ce9a4842, transparent 72%);--veil:linear-gradient(180deg, #0d0d0f00 0%, #0d0d0f6b 58%, #0d0d0fd1 100%);--text:#f3f3f6;--text-2:#ffffff8f;--card-bg:#ffffff12;--card-border:#ffffff1f;--card-shadow:0 1px 1px #00000040, 0 10px 30px -12px #0009, inset 0 1px 1px #ffffff17;--head-grad:linear-gradient(180deg, #fff, #bcbcc8);--correct:#538d4e;--present:#b59f3b;--absent:#3a3a3c;--cell-border:#ffffff38;--key-bg:#ffffff1a;--key-text:var(--text)}@media (prefers-color-scheme:dark){html:not([data-theme]) .bt{--bg:#0d0d0f;--mesh:radial-gradient(40% 34% at 16% 10%, #6080e457, transparent 70%), radial-gradient(44% 38% at 90% 18%, #c45c9c4d, transparent 70%), radial-gradient(48% 42% at 28% 90%, #3c9e7c47, transparent 72%), radial-gradient(42% 36% at 88% 86%, #ce9a4842, transparent 72%);--veil:linear-gradient(180deg, #0d0d0f00 0%, #0d0d0f6b 58%, #0d0d0fd1 100%);--text:#f3f3f6;--text-2:#ffffff8f;--card-bg:#ffffff12;--card-border:#ffffff1f;--card-shadow:0 1px 1px #00000040, 0 10px 30px -12px #0009, inset 0 1px 1px #ffffff17;--head-grad:linear-gradient(180deg, #fff, #bcbcc8);--correct:#538d4e;--present:#b59f3b;--absent:#3a3a3c;--cell-border:#ffffff38;--key-bg:#ffffff1a;--key-text:var(--text)}}.bt-mesh{z-index:0;pointer-events:none;background:var(--mesh);filter:saturate(1.05);position:fixed;inset:-20%}.bt-veil{z-index:0;pointer-events:none;background:var(--veil);position:fixed;inset:0}.bt-wrap{z-index:1;text-align:center;flex-direction:column;align-items:center;gap:32px;max-width:720px;margin:0 auto;padding:clamp(48px,12vh,128px) 24px 64px;display:flex;position:relative}.bt-eyebrow h1{letter-spacing:-.03em;background:var(--head-grad);color:#0000;-webkit-background-clip:text;background-clip:text;margin:0;font-size:clamp(40px,9vw,72px);font-weight:700}.bt-eyebrow p{color:var(--text-2);margin:8px 0 0;font-size:17px}.bt-card{background:var(--card-bg);border:1px solid var(--card-border);width:100%;box-shadow:var(--card-shadow);-webkit-backdrop-filter:blur(18px)saturate(1.4);border-radius:22px;padding:28px}.bt-card-title{margin:0;font-size:22px;font-weight:600}.bt-card-body{color:var(--text-2);margin:12px 0 0;font-size:15px;line-height:1.55}.bt-theme{color:var(--text-2);margin:20px 0 0;font-size:13px;font-weight:500}.bt-modes{background:var(--card-bg);border:1px solid var(--card-border);border-radius:14px;gap:6px;padding:4px;display:flex}.bt-mode{appearance:none;color:var(--text-2);font:inherit;cursor:pointer;background:0 0;border:none;border-radius:10px;padding:8px 16px;font-size:14px;font-weight:600}.bt-mode.is-active{background:var(--correct);color:#fff}.bt-board{flex-direction:column;gap:6px;display:flex}.bt-row{justify-content:center;gap:6px;display:flex}.bt-row--shake{animation:.5s bt-shake}@keyframes bt-shake{10%,90%{transform:translate(-2px)}20%,80%{transform:translate(4px)}30%,50%,70%{transform:translate(-8px)}40%,60%{transform:translate(8px)}}.bt-cell{text-transform:uppercase;border:2px solid var(--cell-border);width:52px;height:52px;color:var(--text);border-radius:8px;justify-content:center;align-items:center;font-size:26px;font-weight:700;display:flex}.bt-cell--filled{border-color:var(--text-2)}.bt-cell--correct,.bt-cell--present,.bt-cell--absent{color:#fff;border-color:#0000}.bt-cell--correct{background:var(--correct)}.bt-cell--present{background:var(--present)}.bt-cell--absent{background:var(--absent)}.bt-toast{background:var(--text);color:var(--bg);border-radius:10px;align-self:center;padding:10px 18px;font-size:14px;font-weight:600}.bt-hint{color:var(--text-2);margin:0 0 8px;font-size:13px}.bt-stats{grid-template-columns:repeat(4,1fr);gap:12px;margin:20px 0 0;display:grid}.bt-stat{flex-direction:column;align-items:center;display:flex}.bt-stat-value{font-size:24px;font-weight:700}.bt-stat-label{color:var(--text-2);text-align:center;margin-top:4px;font-size:11px}.bt-actions{justify-content:center;gap:12px;margin-top:24px;display:flex}.bt-btn{appearance:none;font:inherit;background:var(--correct);color:#fff;cursor:pointer;border:none;border-radius:12px;padding:12px 22px;font-size:14px;font-weight:700}.bt-btn--ghost{color:var(--text);border:1px solid var(--card-border);background:0 0}.bt-kb{flex-direction:column;gap:8px;width:100%;display:flex}.bt-kb-row{justify-content:center;gap:6px;display:flex}.bt-key{appearance:none;background:var(--key-bg);color:var(--key-text);font:inherit;text-transform:uppercase;cursor:pointer;border:none;border-radius:8px;flex:1;min-width:32px;height:46px;padding:0 6px;font-size:14px;font-weight:600}.bt-key:disabled{cursor:default;opacity:.6}.bt-key--wide{flex:1.6;font-size:12px}.bt-key--correct{background:var(--correct);color:#fff}.bt-key--present{background:var(--present);color:#fff}.bt-key--absent{background:var(--absent);color:#fff}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}*{box-sizing:border-box;-webkit-font-smoothing:antialiased}body{min-height:100vh;margin:0}