.xs-sheet{position:relative;min-width:0;container:xs-sheet / inline-size;color:var(--bb-ink);font-family:var(--font-body),Palatino,Georgia,serif;line-height:1.5;background:var(--bb-surface);border:1px solid var(--bb-line);border-radius:var(--bb-radius);box-shadow:var(--bb-card-shadow)}.xs-sheet[data-color],html[data-appearance=night] .xs-sheet[data-color]{--bb-accent: var(--unit);--bb-accent-deep: color-mix(in oklab, var(--unit-deep) 62%, var(--bb-ink));--bb-accent-soft: color-mix(in oklab, var(--unit-soft) 60%, var(--bb-surface));--bb-accent-line: color-mix(in oklab, var(--unit) 45%, var(--bb-surface))}.xs-sheet :focus-visible{outline:2px solid var(--bb-focus);outline-offset:2px}.xs-body{display:grid;gap:20px;padding:18px 24px}@container xs-sheet (min-width: 44rem){.xs-body{grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);align-items:start;column-gap:28px}}.xs-step,.xs-settings{min-width:0}.xs-settings{display:grid;gap:16px;align-content:start}.xs-step-head{display:flex;align-items:center;gap:10px;margin:0 0 9px;padding:0 0 8px;border-bottom:1px solid var(--bb-line)}.xs-step-num{display:grid;flex-shrink:0;place-items:center;min-width:26px;height:26px;padding:0 7px;border-radius:8px;background:var(--bb-primary);color:#fff;font-family:var(--font-display),Palatino,Georgia,serif;font-size:.88rem;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}.xs-step-label{margin:0;font-family:var(--font-body),Palatino,Georgia,serif;font-size:.68rem;font-weight:800;letter-spacing:.16em;line-height:1.3;text-transform:uppercase;color:var(--bb-ink-soft)}.xs-opt{appearance:none;position:relative;display:flex;min-width:0;align-items:center;gap:12px;margin:0;padding:6px 12px 6px 6px;border:1px solid var(--bb-line-strong);border-radius:var(--bb-control-radius);background:var(--bb-surface);color:var(--bb-ink);font:inherit;text-align:left;cursor:pointer;transition:border-color .15s ease,background-color .15s ease,box-shadow .15s ease,color .15s ease}.xs-opt:hover:not(:disabled){border-color:var(--bb-line-hover);background:var(--bb-surface-2)}.xs-opt:active:not(:disabled){background:var(--bb-surface-3)}.xs-opt[aria-checked=true],.xs-opt[aria-checked=true]:hover:not(:disabled){border-color:var(--bb-accent);background:var(--bb-accent-soft);box-shadow:0 0 0 1px var(--bb-accent) inset}.xs-opt:disabled{cursor:not-allowed;color:var(--bb-muted)}.xs-opt[data-locked]{border-style:dashed;background:var(--bb-surface-2)}.xs-sheet.is-pending .xs-opt:disabled{opacity:.6}.xs-opt-lock{flex-shrink:0;width:15px;height:15px;margin-left:auto;color:var(--bb-faint)}.xs-badge{display:grid;flex:none;place-items:center;width:30px;height:30px;border:1.5px solid var(--bb-line-strong);border-radius:999px;background:var(--bb-surface);color:var(--bb-ink-soft);font-family:var(--font-display),Palatino,Georgia,serif;font-size:.95rem;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;transition:background-color .15s ease,border-color .15s ease,color .15s ease}.xs-opt[aria-checked=true] .xs-badge{border-color:var(--bb-accent);background:var(--bb-accent);color:#fff;animation:xs-pop .28s var(--bb-ease)}.xs-unit[data-color] .xs-badge{border-color:var(--unit);background:var(--unit);color:#fff;text-shadow:0 1px 1px rgb(0 0 0 / .18)}.xs-unit[data-locked] .xs-badge,.xs-sheet.is-pending .xs-unit:disabled .xs-badge{filter:saturate(.55);opacity:.72}.xs-unit--mock .xs-badge{border:2px solid transparent;background:linear-gradient(var(--bb-surface),var(--bb-surface)) padding-box,conic-gradient(var(--color-coral) 0 16.66%,var(--color-sky) 0 33.33%,var(--color-mint) 0 50%,var(--color-amber) 0 66.66%,var(--color-indigo) 0 83.33%,var(--color-rose) 0) border-box;color:var(--bb-ink-soft)}.xs-unit--mock[aria-checked=true] .xs-badge{background:linear-gradient(var(--bb-accent),var(--bb-accent)) padding-box,conic-gradient(var(--color-coral) 0 16.66%,var(--color-sky) 0 33.33%,var(--color-mint) 0 50%,var(--color-amber) 0 66.66%,var(--color-indigo) 0 83.33%,var(--color-rose) 0) border-box;color:#fff}.xs-unit--mock[data-locked] .xs-badge{filter:saturate(.55);opacity:.72}@keyframes xs-pop{40%{transform:scale(1.12)}}.xs-opt-text{min-width:0;flex:1 1 auto;font-size:.98rem;font-weight:500;line-height:1.25}.xs-opt-sub{display:block;font-size:.8rem;font-weight:600;line-height:1.3;color:var(--bb-muted)}.xs-opt[data-locked] .xs-opt-sub{color:var(--bb-faint)}.xs-units{display:grid;gap:6px}.xs-unit{min-height:40px;padding-block:4px}.xs-unit .xs-opt-text{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2}@container xs-sheet (max-width: 43.99rem){.xs-units{grid-template-columns:repeat(2,minmax(0,1fr))}.xs-unit--mock{grid-column:1 / -1}}.xs-cards{display:grid;gap:8px}.xs-cards--2{grid-template-columns:repeat(2,minmax(0,1fr))}.xs-cards--3{grid-template-columns:repeat(3,minmax(0,1fr))}.xs-card{--xs-card-bg: var(--bb-surface);flex-direction:column;align-items:stretch;justify-content:flex-start;gap:5px;padding:9px 12px 10px}.xs-card-head{display:flex;min-width:0;min-height:18px;align-items:center;justify-content:space-between;gap:8px}.xs-card-kicker{font-size:.64rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--bb-ink-soft)}.xs-card-title{font-family:var(--font-display),Palatino,Georgia,serif;font-size:1.04rem;font-weight:700;line-height:1.15;letter-spacing:-.01em}.xs-card-meta{margin-top:auto;font-size:.78rem;font-weight:700;line-height:1.25;color:var(--bb-muted)}.xs-opt[aria-checked=true] .xs-card-kicker,.xs-opt[aria-checked=true] .xs-card-meta{color:var(--bb-accent-deep)}.xs-opt:disabled .xs-card-kicker,.xs-opt:disabled .xs-card-meta{color:var(--bb-faint)}.xs-tag{position:absolute;top:-8px;right:10px;padding:0 6px;border:1px solid var(--bb-line-strong);border-radius:6px;background:var(--bb-surface);color:var(--bb-ink-soft);font-size:.54rem;font-weight:800;letter-spacing:.08em;line-height:1.6;text-transform:uppercase;white-space:nowrap;transition:border-color .15s ease,color .15s ease}.xs-opt[aria-checked=true] .xs-tag{border-color:var(--bb-accent);color:var(--bb-accent-deep)}.xs-len-count{display:flex;align-items:baseline;gap:6px}.xs-len-num{font-family:var(--font-display),Palatino,Georgia,serif;font-size:1.55rem;font-weight:700;line-height:1;letter-spacing:-.02em;font-variant-numeric:lining-nums tabular-nums}.xs-len-unit{font-size:.84rem;font-weight:600;color:var(--bb-muted)}.xs-opt[aria-checked=true] .xs-len-unit{color:var(--bb-accent-deep)}.xs-dashes{display:flex;gap:3px;min-width:0;height:4px;margin-top:auto}.xs-dashes[data-count="30"]{gap:2px}.xs-dashes[data-count="60"]{gap:1px}.xs-dashes>span{flex:1 1 0;min-width:0;border-radius:2px;background:var(--bb-line-strong);transition:background-color .2s ease}.xs-opt[aria-checked=true] .xs-dashes>span{background:var(--bb-accent)}.xs-opt:disabled .xs-dashes>span{background:var(--bb-line)}.xs-cards--3 .xs-card{container:xs-diff / inline-size}.xs-bubbles{display:flex;flex-wrap:nowrap;gap:3px}.xs-bubbles>span{display:grid;flex:none;place-items:center;width:19px;height:19px;box-shadow:0 0 0 1.5px var(--xs-card-bg, var(--bb-surface));border:1.25px solid var(--bb-line-strong);border-radius:999px;background:var(--bb-surface);color:var(--bb-ink-soft);font-family:var(--font-display),Palatino,Georgia,serif;font-size:.66rem;font-weight:700;line-height:1;transition:border-color .15s ease,color .15s ease}.xs-card[aria-checked=true]{--xs-card-bg: var(--bb-accent-soft)}.xs-card:hover:not(:disabled):not([aria-checked=true]){--xs-card-bg: var(--bb-surface-2)}.xs-opt[aria-checked=true] .xs-bubbles>span{border-color:var(--bb-accent-line);color:var(--bb-accent-deep)}@container xs-diff (max-width: 106.98px){.xs-bubbles{gap:0}.xs-bubbles>span{font-size:.6rem}.xs-bubbles>span+span{margin-left:-3px}}@container xs-diff (max-width: 90px){.xs-bubbles>span{width:17px;height:17px;font-size:.56rem}}.xs-hint{margin:8px 0 0;font-size:.82rem;font-weight:600;line-height:1.4;color:var(--bb-muted)}.xs-options{display:grid;gap:0}.xs-toggle{position:relative;display:flex;align-items:center;gap:14px;padding:9px 12px 9px 14px;border:1px solid var(--bb-line);border-radius:11px;background:var(--bb-surface-2);cursor:pointer;transition:border-color .15s ease,background-color .15s ease}.xs-toggle:hover{border-color:var(--bb-line-strong)}.xs-toggle.is-on{border-color:var(--bb-accent-line);background:var(--bb-accent-soft)}.xs-toggle-copy{display:grid;min-width:0;flex:1 1 auto;gap:1px}.xs-toggle-title{font-family:var(--font-display),Palatino,Georgia,serif;font-size:1rem;font-weight:700;line-height:1.25;color:var(--bb-ink)}.xs-toggle-sub{font-size:.84rem;line-height:1.35;color:var(--bb-muted)}.xs-switch-input{position:absolute;width:1px;height:1px;margin:0;opacity:0;pointer-events:none}.xs-switch{position:relative;flex-shrink:0;width:40px;height:24px;border-radius:999px;background:var(--bb-line-strong);transition:background-color .2s ease}.xs-switch-knob{position:absolute;top:3px;left:3px;display:grid;width:18px;height:18px;place-items:center;border-radius:999px;background:#fff;color:var(--bb-accent);box-shadow:0 1px 3px #1b202540;transition:transform .22s var(--bb-ease)}.xs-switch-check{width:11px;height:11px;opacity:0;transition:opacity .15s ease}.xs-switch-input:checked+.xs-switch{background:var(--bb-accent)}.xs-switch-input:checked+.xs-switch .xs-switch-knob{transform:translate(16px)}.xs-switch-input:checked+.xs-switch .xs-switch-check{opacity:1}.xs-switch-input:focus-visible+.xs-switch{outline:2px solid var(--bb-focus);outline-offset:2px}.xs-hint--note{margin:6px 2px 0}.xs-foot{position:sticky;bottom:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:14px 20px;padding:10px 24px 11px;border-top:1px solid var(--bb-line);border-radius:0 0 calc(var(--bb-radius) - 1px) calc(var(--bb-radius) - 1px);background:color-mix(in oklab,var(--bb-surface) 94%,transparent);box-shadow:0 -14px 24px -22px #1b202566;backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px)}.xs-summary{min-width:0}.xs-summary-kicker{margin:0;overflow:hidden;font-size:.62rem;font-weight:800;letter-spacing:.17em;line-height:1.3;text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap;color:var(--bb-accent-deep)}.xs-facts{display:flex;margin:5px 0 0}.xs-facts>div{display:flex;flex-direction:column-reverse;justify-content:flex-end;gap:2px;padding:0 16px}.xs-facts>div:first-child{padding-left:0}.xs-facts>div+div{border-left:1px solid var(--bb-line)}.xs-facts dd{margin:0;font-family:var(--font-display),Palatino,Georgia,serif;font-size:1.4rem;font-weight:700;line-height:1;letter-spacing:-.02em;font-variant-numeric:lining-nums tabular-nums;color:var(--bb-ink)}.xs-facts dt{font-size:.56rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--bb-muted)}.xs-actions{display:flex;flex-shrink:0;align-items:center;gap:10px}.xs-start-wrap{position:relative}.xs-btn.xs-start{min-width:9rem}.xs-start-tip{position:absolute;right:0;bottom:calc(100% + 12px);z-index:10;width:max-content;max-width:min(21rem,78vw);padding:10px 12px;border-radius:var(--bb-control-radius);background:var(--bb-primary);color:var(--bb-canvas);font-size:.8rem;font-weight:600;line-height:1.45;text-align:left;box-shadow:var(--bb-float-shadow);animation:xs-tip-in .18s var(--bb-ease)}.xs-start-tip:after{content:"";position:absolute;top:100%;right:1.6rem;border:6px solid transparent;border-top-color:var(--bb-primary)}@keyframes xs-tip-in{0%{opacity:0;transform:translateY(4px)}}@container xs-sheet (max-width: 33.99rem){.xs-cards--3 .xs-card{padding-inline:10px}.xs-tag{right:6px;padding-inline:5px;letter-spacing:.05em}}@media(max-width:639px){.xs-sheet{border-radius:16px}.xs-body{gap:18px;padding:14px 12px 16px}.xs-settings{gap:16px}.xs-step-head{margin-bottom:9px;padding-bottom:8px}.xs-step-num{min-width:24px;height:24px;border-radius:7px;font-size:.82rem}.xs-unit{min-height:46px;gap:8px;padding:5px 8px 5px 5px}.xs-unit .xs-badge{width:26px;height:26px;font-size:.84rem}.xs-unit .xs-opt-text{font-size:.84rem;line-height:1.2}.xs-opt-sub{font-size:.76rem}.xs-opt-lock{width:13px;height:13px}.xs-card{padding:8px 10px 9px}.xs-len-num{font-size:1.4rem}.xs-card-title{font-size:.98rem}.xs-hint--mix{display:none}.xs-toggle{padding:8px 10px 8px 12px}.xs-toggle-sub{font-size:.8rem}.xs-foot{gap:12px;padding:9px 12px calc(10px + env(safe-area-inset-bottom,0px));border-radius:0 0 15px 15px}.xs-summary-kicker{font-size:.56rem;letter-spacing:.12em}.xs-summary-flag{display:none}.xs-facts{margin-top:4px}.xs-facts>div{padding:0 10px}.xs-facts dd{font-size:1.15rem}.xs-facts dt{font-size:.5rem;letter-spacing:.1em}.xs-facts>.xs-fact-choices{display:none}.xs-btn.xs-cancel{display:none}.xs-btn.xs-start{min-width:8.25rem;min-height:46px}}@media(max-width:379px){.xs-unit .xs-opt-text{font-size:.79rem}.xs-unit{gap:7px;padding-right:6px}}html[data-appearance=night] .xs-step-num,html[data-appearance=night] .xs-opt[aria-checked=true] .xs-badge,html[data-appearance=night] .xs-unit[data-color] .xs-badge,html[data-appearance=night] .xs-unit--mock[aria-checked=true] .xs-badge{color:#0a0f14;text-shadow:none}html[data-appearance=night] .xs-switch-knob{background:var(--bb-ink);color:#0a0f14}html[data-appearance=night] .xs-switch-input:checked+.xs-switch .xs-switch-knob{background:#fff}html[data-appearance=night] .xs-foot{background:#121a22f0;box-shadow:0 -14px 24px -20px #000c}@media(forced-colors:active){.xs-opt[aria-checked=true]{outline:3px solid Highlight;outline-offset:-3px}.xs-opt[aria-checked=true] .xs-badge{forced-color-adjust:none;border-color:Highlight;background:Highlight;color:HighlightText}.xs-switch{forced-color-adjust:none;border:1px solid CanvasText;background:Canvas}.xs-switch-knob{background:CanvasText}.xs-switch-input:checked+.xs-switch{border-color:Highlight;background:Highlight}.xs-switch-input:checked+.xs-switch .xs-switch-knob{background:HighlightText}}@media(prefers-reduced-motion:reduce){.xs-sheet *,.xs-sheet *:before,.xs-sheet *:after{animation:none!important;transition:none!important}}.bb-app,.bb-modal,.exam-liquid,.bb-scope{--bb-canvas: #f3f1ec;--bb-surface: #ffffff;--bb-surface-2: #faf8f5;--bb-surface-3: #f4f1ec;--bb-ink: #1b2025;--bb-ink-soft: #3c454e;--bb-muted: #69737d;--bb-faint: #9aa2aa;--bb-line: #e6e1d9;--bb-line-strong: #d3ccc1;--bb-line-hover: #b8b0a4;--bb-accent: #0b7ba3;--bb-accent-deep: #075f7e;--bb-accent-soft: #e8f4f9;--bb-accent-line: #9fd0e2;--bb-focus: #0b7ba3;--bb-flag: #b3620b;--bb-flag-soft: #fcf0de;--bb-good: #1c8656;--bb-good-soft: #e7f5ee;--bb-good-line: #9fd7bb;--bb-bad: #c0402c;--bb-bad-soft: #fcebe7;--bb-bad-line: #ecb1a5;--bb-primary: #1b2530;--bb-primary-hover: #26333f;--bb-card-shadow: 0 1px 2px rgb(27 32 37 / .04), 0 14px 34px -16px rgb(27 32 37 / .14);--bb-float-shadow: 0 1px 2px rgb(27 32 37 / .06), 0 24px 60px -18px rgb(27 32 37 / .28);--bb-radius: 18px;--bb-control-radius: 10px;--bb-ease: cubic-bezier(.22, 1, .36, 1);--bb-press: 0 2px 6px rgb(27 32 37 / .18) inset;--bb-press-primary: 0 2px 6px rgb(0 0 0 / .3) inset}html[data-appearance=night] .bb-app,html[data-appearance=night] .bb-modal,html[data-appearance=night] .exam-liquid,html[data-appearance=night] .bb-scope{--bb-canvas: #0a0f14;--bb-surface: #121a22;--bb-surface-2: #16202a;--bb-surface-3: #1b2631;--bb-ink: #eef4f8;--bb-ink-soft: #c9d4de;--bb-muted: #93a3b2;--bb-faint: #6b7c8b;--bb-line: #243240;--bb-line-strong: #33475a;--bb-line-hover: #4a6278;--bb-accent: #3ec8f0;--bb-accent-deep: #7adef8;--bb-accent-soft: #0f2a36;--bb-accent-line: #1f5a70;--bb-focus: #3ec8f0;--bb-flag: #ffc14d;--bb-flag-soft: #2c2412;--bb-good: #3ee0a0;--bb-good-soft: #0f2a20;--bb-good-line: #1f6b4e;--bb-bad: #ff8577;--bb-bad-soft: #2e1714;--bb-bad-line: #7a3a31;--bb-primary: #e9f2f7;--bb-primary-hover: #ffffff;--bb-card-shadow: 0 0 0 1px rgb(255 255 255 / .02), 0 18px 40px -20px rgb(0 0 0 / .7);--bb-float-shadow: 0 0 0 1px rgb(255 255 255 / .04), 0 30px 70px -20px rgb(0 0 0 / .8)}.xs-hero{display:flex;align-items:center;gap:10px 18px;margin-top:8px}.xs-hero-copy{min-width:0}.xs-hero-kicker{margin:0;font-size:.64rem;font-weight:800;letter-spacing:.2em;line-height:1.3;text-transform:uppercase;color:var(--bb-accent-deep)}.xs-hero-title{margin:1px 0 0;font-family:var(--font-display),Palatino,Georgia,serif;font-size:1.95rem;font-weight:700;line-height:1;letter-spacing:-.03em;color:var(--bb-ink)}.xs-hero-sub{display:none;margin:0 0 0 auto;max-width:40rem;font-family:var(--font-display),Palatino,Georgia,serif;font-size:1rem;font-style:italic;line-height:1.35;text-align:right;color:var(--bb-muted)}@media(min-width:1024px){.xs-hero-sub{display:block}}.xs-split{display:grid;gap:1rem;margin-top:.9rem;min-width:0}@media(min-width:1140px){.xs-split{grid-template-columns:minmax(0,1fr) minmax(19rem,22.5rem);align-items:start;gap:1.25rem;margin-top:1rem}.xs-split>.xs-history{position:sticky;top:1rem}}@media(max-width:639px){.xs-hero{gap:12px;margin-top:6px}.xs-hero-kicker{font-size:.58rem}.xs-hero-title{font-size:1.6rem}.xs-split{margin-top:.75rem}}