:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#282b27;font-synthesis:none;--ink:#282b27;--muted:#747974;--faint:#a0a49f;--surface:#fff;--surface-soft:#f7f6f2;--line:#dedfd9;--line-strong:#c9cbc4;--accent:#526b8a;--accent-soft:#e9eef5;--accent-deep:#30445f;--warm:#9a7546;--danger:#9a5148;background:#f3f2ee;font-family:Inter,Hiragino Sans,Yu Gothic,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{background:#f3f2ee}body{background:#f3f2ee;min-width:320px;min-height:100vh;margin:0}body.modal-open{overflow:hidden}button,select,input{font:inherit}button{color:inherit}.app-frame{min-height:100vh}.topbar{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffe6;justify-content:space-between;align-items:center;height:68px;padding:0 clamp(20px,5vw,68px);display:flex}.brand{color:var(--ink);text-decoration:none}.brand strong,.brand small{display:block}.brand 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#2830420f}.control-stack{flex:1;gap:24px;min-width:0;display:grid}.match-mode-switch{background:#ecece7;border-radius:9px;grid-template-columns:1fr 1fr;gap:3px;width:min(100%,520px);padding:3px;display:grid}.match-mode-switch button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:7px;justify-content:center;align-items:baseline;gap:8px;padding:9px 12px;display:flex}.match-mode-switch button.active{color:var(--accent-deep);background:#fff;box-shadow:0 1px 5px #23272314}.match-mode-switch strong{font-size:11px;font-weight:650}.match-mode-switch small{color:var(--faint);font-size:8px}.casual-account-note{width:min(100%,520px);color:var(--faint);margin:-16px 0 0;font-size:9px;line-height:1.6}.rated-match-card{background:#f3f5f9;border:1px solid #bcc7d5;border-radius:11px;grid-template-columns:minmax(250px,1fr) auto;align-items:center;gap:24px;padding:17px 19px;display:grid}.rated-match-card h3{margin:6px 0 0;font-size:20px;font-weight:620}.rated-match-card h3 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strong{color:var(--accent-deep);font-size:11px}.rated-level-grid{grid-template-columns:repeat(auto-fit,minmax(92px,1fr));gap:7px;display:grid}.rated-level-grid button{border:1px solid var(--line-strong);min-height:52px;color:var(--muted);cursor:pointer;background:#fff;border-radius:8px;place-items:center;gap:3px;padding:9px 8px;display:grid}.rated-level-grid button strong{color:var(--ink);font-size:10px;font-weight:620}.rated-level-grid button small{color:var(--faint);font-variant-numeric:tabular-nums;font-size:8px}.rated-level-grid button:hover:not(:disabled),.rated-level-grid button.active{border-color:var(--accent);background:var(--accent-soft)}.rated-level-grid button.active strong,.rated-level-grid button.active small{color:var(--accent-deep)}.rated-level-grid button.is-featured{background:#fbf8f3;border-color:#d6c7b2}.rated-level-grid 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var(--line-strong);min-height:52px;color:var(--muted);cursor:pointer;background:#fff;border-radius:8px;place-items:center;gap:3px;padding:9px 8px;display:grid}.casual-level-grid button strong{color:var(--ink);font-size:10px;font-weight:620}.casual-level-grid button small{color:var(--faint);font-variant-numeric:tabular-nums;font-size:8px}.casual-level-grid button:hover:not(:disabled),.casual-level-grid button.active{border-color:var(--accent);background:var(--accent-soft)}.casual-level-grid button.active strong,.casual-level-grid button.active small{color:var(--accent-deep)}.champion-choice{text-align:left;cursor:pointer;background:#fbf8f3;border:1px solid #d6c7b2;border-radius:10px;justify-content:space-between;align-items:center;gap:16px;width:100%;margin-top:3px;padding:14px 16px;transition:border-color .15s,background .15s;display:flex}.champion-choice:hover:not(:disabled),.champion-choice.active{background:#f6eee2;border-color:#a98253}.champion-choice span{gap:4px;display:grid}.champion-choice strong{font-size:13px;font-weight:650}.champion-choice small{color:var(--muted);font-size:10px}.champion-choice b{color:#76552f;white-space:nowrap;font-variant-numeric:tabular-nums;font-size:11px;font-weight:600}.champion-choice-meta{text-align:right;justify-items:end}.champion-choice-meta em{color:#8a6a43;white-space:nowrap;font-size:8px;font-style:normal;font-weight:600}.difficulty-block>.model-change-note{color:var(--faint);margin:0;font-size:8px;line-height:1.6}.rated-rules{background:#fdfaf4;border:1px solid #d8c49e;border-radius:12px;margin-top:14px;overflow:hidden}.rated-rules>summary{cursor:pointer;justify-content:space-between;align-items:center;gap:18px;padding:15px 18px;list-style:none;display:flex}.rated-rules>summary::-webkit-details-marker{display:none}.rated-rules>summary span{gap:3px;display:grid}.rated-rules>summary b{color:#604b30;font-size:12px;font-weight:650}.rated-rules>summary small{color:#8d7657;font-size:9px}.rated-rules>summary em{color:#76552f;white-space:nowrap;font-size:9px;font-style:normal;font-weight:650}.rated-rules[open]>summary{border-bottom:1px solid #e2d8c6}.rated-rules[open]>summary em:after{content:" −"}.rated-rules-grid{background:#e2d8c6;grid-template-columns:1fr 1fr;gap:1px;display:grid;overflow:hidden}.rated-rules-grid article{background:#fffdf8;grid-template-columns:28px 1fr;gap:12px;min-width:0;padding:16px;display:grid}.rated-rules-grid article.is-opening-rule{background:#fff8ea}.rated-rules-grid article>span{color:#8a6a43;border:1px solid #d8c49e;border-radius:50%;place-items:center;width:26px;height:26px;font:8px ui-monospace,monospace;display:grid}.rated-rules-grid h3{margin:1px 0 0;font-size:11px;font-weight:650}.rated-rules-grid p{color:var(--muted);margin:6px 0 0;font-size:9px;line-height:1.7}.btd-guide{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-top:14px;overflow:hidden}.btd-guide-body{border-top:1px solid var(--line);padding:0 clamp(18px,3vw,30px) clamp(20px,3vw,28px)}.info-summary{cursor:pointer;justify-content:space-between;align-items:center;gap:18px;padding:15px 18px;list-style:none;display:flex}.info-summary::-webkit-details-marker{display:none}.info-summary>span{gap:3px;display:grid}.info-summary b{font-size:12px;font-weight:650}.info-summary small{color:var(--muted);font-size:9px}.info-summary em{color:var(--accent);white-space:nowrap;font-size:9px;font-style:normal;font-weight:650}.btd-guide[open] .info-summary em:after,.level-results[open] .info-summary em:after{content:" −"}.btd-guide-heading{justify-content:space-between;align-items:flex-end;gap:24px;display:flex}.btd-guide-heading h2{letter-spacing:-.02em;margin:5px 0 0;font-size:22px;font-weight:590}.btd-guide-heading>strong{color:var(--muted);flex:none;align-items:baseline;gap:10px;font-size:11px;font-weight:550;display:flex}.btd-guide-heading>strong span{color:var(--accent-deep);font-variant-numeric:tabular-nums;font-size:17px;font-weight:650}.btd-intro{max-width:850px;color:var(--muted);margin:12px 0 0;font-size:11px;line-height:1.75}.btd-comparison{border:1px solid var(--line);background:var(--surface-soft);border-radius:10px;margin:20px 0 18px;padding:14px 16px 12px}.btd-comparison-heading{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.btd-comparison-heading strong{font-size:10px;font-weight:650}.btd-comparison-context{font-variant-numeric:tabular-nums;justify-items:end;gap:3px;display:grid}.btd-comparison-context b{color:var(--accent-deep);font-size:9px;font-weight:620}.btd-comparison-context small{color:var(--faint);font-size:8px}.btd-scroll-hint{display:none}.btd-chart-scroll{overflow:visible}.btd-line-chart{min-height:250px;margin-top:12px;transition:height .18s;position:relative}.btd-line-track{top:var(--axis-y);left:var(--axis-pad);right:var(--axis-pad);border:1px solid var(--line-strong);background:linear-gradient(90deg,#edf0f5,#d2dae6);border-radius:99px;grid-auto-columns:1fr;grid-auto-flow:column;height:8px;display:grid;position:absolute;overflow:hidden;transform:translateY(-50%)}.btd-line-track i{border-right:1px solid #ffffffc7}.btd-line-track i:last-child{border-right:0}.btd-line-ticks{color:var(--faint);font-variant-numeric:tabular-nums;pointer-events:none;font-size:8px;position:absolute;inset:0}.btd-line-ticks span{top:calc(var(--axis-y) + 10px);text-align:center;position:absolute;transform:translate(-50%)}.btd-lane-title{z-index:1;color:var(--faint);letter-spacing:.04em;background:#f5f6f3e6;border-radius:4px;padding:2px 5px;font-size:8px;font-weight:650;position:absolute;left:2px}.btd-lane-title.is-ai{top:2px}.btd-lane-title.is-human{top:calc(var(--axis-y) + 36px)}.btd-rating-marker{z-index:2;width:0;color:var(--muted);position:absolute;inset-block:0}.btd-rating-marker:after{content:"";background:#b8c1ce;width:1px;position:absolute;left:-.5px}.btd-rating-label{z-index:3;white-space:nowrap;background:#fffffff7;border:1px solid #d8dde5;border-radius:6px;justify-items:center;gap:1px;min-width:54px;padding:4px 6px;display:grid;position:absolute;left:0;transform:translate(-50%);box-shadow:0 2px 7px #2327230e}.btd-rating-label small{font-size:8px;line-height:1.1}.btd-rating-label b{font-variant-numeric:tabular-nums;font-size:9px;font-weight:680;line-height:1.1}.btd-rating-point{top:var(--axis-y);z-index:4;background:var(--accent);border:2px solid #fff;border-radius:50%;width:9px;height:9px;position:absolute;left:0;transform:translate(-50%,-50%);box-shadow:0 0 0 1px #8291a6}.btd-rating-marker.is-ai .btd-rating-label{top:calc(var(--axis-y) - 36px - var(--lane-offset))}.btd-rating-marker.is-ai:after{top:calc(var(--axis-y) - 8px - var(--lane-offset));height:calc(8px + var(--lane-offset))}.btd-rating-marker.is-featured{color:#76552f}.btd-rating-marker.is-featured .btd-rating-point{background:#9a7546;box-shadow:0 0 0 1px #a9875d}.btd-rating-marker.is-opponent .btd-rating-label{background:#fffaf1;border-color:#c7a978}.btd-rating-marker.is-opponent .btd-rating-point{width:11px;height:11px;box-shadow:0 0 0 2px #dec69e}.btd-rating-marker.is-human{z-index:4;color:var(--accent-deep)}.btd-rating-marker.is-human:after{top:var(--axis-y);height:calc(36px + var(--lane-offset));background:#7f8ea5}.btd-rating-marker.is-human .btd-rating-label{top:calc(var(--axis-y) + 32px + var(--lane-offset));background:#f8f9fc;border-color:#9eabc0;width:max-content;min-width:0;max-width:104px;padding:3px 5px}.btd-rating-marker.is-human .btd-rating-label 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