:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:#0b0f17;min-width:320px;margin:0}button,input,textarea{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.app{--bg:#0b0f17;--surface:#121923;--surface-2:#18212d;--line:#263140;--text:#f4f7f1;--muted:#8d99a8;--accent:#b6ed3d;--accent-ink:#101509;min-height:100vh;color:var(--text);background:radial-gradient(circle at 75% 10%, #47673a29, transparent 30%), var(--bg);transition:background .2s,color .2s}.app[data-theme=light]{--bg:#f4f6f0;--surface:#fff;--surface-2:#edf0e8;--line:#dbe0d5;--text:#152016;--muted:#68746b;--accent:#4c7600;--accent-ink:#fff;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}.page-shell{width:min(1160px,100% - 40px);margin-inline:auto}.site-header{z-index:20;border-bottom:1px solid color-mix(in srgb, var(--line) 65%, transparent);background:color-mix(in srgb, var(--bg) 84%, transparent);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);position:sticky;top:0}.nav{justify-content:space-between;align-items:center;height:70px;display:flex}.brand{color:var(--text);background:0 0;border:0;align-items:center;gap:10px;font-family:inherit;font-size:17px;font-weight:800;display:flex}.brand span{width:31px;height:31px;color:var(--accent-ink);background:var(--accent);border-radius:9px;place-items:center;font-size:20px;display:grid}.nav nav{align-items:center;gap:20px;display:flex}.nav-link,.text-button{color:var(--muted);background:0 0;border:0;font-weight:600}.nav-link:hover,.text-button:hover,.nav-link[aria-current=page]{color:var(--text)}.theme-button,.icon-button{border:1px solid var(--line);background:var(--surface);width:38px;height:38px;color:var(--text);border-radius:50%}.hero{grid-template-columns:1.12fr .88fr;align-items:center;gap:100px;min-height:510px;padding-block:90px 65px;display:grid}.eyebrow{color:var(--muted);letter-spacing:.14em;text-transform:uppercase;font-size:12px;font-weight:700;line-height:1}.live-dot{background:var(--accent);width:7px;height:7px;box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);border-radius:50%;margin-right:8px;display:inline-block}h1,h2,p{margin-top:0}h1,h2{letter-spacing:-.045em;font-family:inherit}.hero h1{margin:23px 0 22px;font-size:clamp(48px,6vw,78px);font-weight:700;line-height:.99}h1 em{color:var(--accent);font-style:normal}.hero-copy>p{max-width:580px;color:var(--muted);font-size:18px;line-height:1.65}.hero-actions{gap:12px;margin-top:34px;display:flex}.button{border:1px solid #0000;border-radius:11px;min-height:49px;padding:0 22px;font-weight:700;transition:transform .15s,opacity .15s,background .15s}.button:hover:not(:disabled){transform:translateY(-2px)}.button:disabled{opacity:.4;cursor:not-allowed}.button.primary{background:var(--accent);color:var(--accent-ink);box-shadow:0 12px 36px color-mix(in srgb, var(--accent) 13%, transparent)}.button.secondary{background:var(--surface);color:var(--text);border-color:var(--line)}.button.full{width:100%}.text-button.full{text-align:center;width:100%}.today-card,.panel{background:linear-gradient(145deg, color-mix(in srgb, var(--surface) 94%, white 2%), var(--surface));border:1px solid var(--line);border-radius:18px;box-shadow:0 25px 70px #0000002e}.today-card{padding:27px;transform:rotate(1.25deg)}.card-top,.section-heading{justify-content:space-between;align-items:center;display:flex}.card-top>span:first-child{font-weight:700}.pill{color:var(--accent);background:color-mix(in srgb, var(--accent) 11%, transparent);text-transform:uppercase;letter-spacing:.06em;border-radius:999px;padding:6px 10px;font-size:11px;font-weight:700;display:inline-flex}.due-number{letter-spacing:-.08em;margin-top:42px;font-family:inherit;font-size:88px;line-height:1;display:block}.due-label{color:var(--muted)}.metric-row{border-top:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin-top:39px;padding-top:21px;display:grid}.metric-row div{flex-direction:column;gap:5px;display:flex}.metric-row b{font-size:18px}.metric-row span{color:var(--muted);font-size:11px}.empty-state{border:1px dashed var(--line);border-radius:16px;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;margin-bottom:45px;padding:27px;display:grid}.empty-icon{width:58px;height:58px;color:var(--accent);background:color-mix(in srgb, var(--accent) 10%, var(--surface));border-radius:13px;place-items:center;font-size:32px;display:grid}.empty-state h2{margin-bottom:6px;font-size:20px}.empty-state p,.panel p{color:var(--muted);margin:0;line-height:1.55}.stats-grid{grid-template-columns:1.6fr 1fr 1fr;gap:16px;margin-bottom:30px;display:grid}.panel{box-shadow:none;padding:24px}.panel h2{margin:13px 0 12px;font-size:22px}.section-heading h2{margin-bottom:0}.section-heading>strong{color:var(--muted);font-size:13px}.bar-chart{align-items:flex-end;gap:13px;height:130px;margin-top:25px;display:flex}.bar-wrap{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;gap:8px;height:100%;display:flex}.bar{background:var(--accent);opacity:.85;border-radius:6px 6px 2px 2px;width:100%;max-width:32px;min-height:5px}.bar-wrap span{color:var(--muted);font-size:10px}.history-row{align-items:center;gap:11px;margin-top:14px;display:flex}.history-row>div{flex-direction:column;display:flex}.history-row b{font-size:13px}.history-row div span{color:var(--muted);font-size:10px}.result{border-radius:8px;place-items:center;width:28px;height:28px;font-weight:800;display:grid}.result.correct{color:var(--accent);background:color-mix(in srgb, var(--accent) 10%, transparent)}.result.wrong{color:#ff7e76;background:#ff5f571a}.ad-slot{border:1px dashed var(--line);height:72px;color:var(--muted);letter-spacing:.14em;text-transform:uppercase;border-radius:13px;place-items:center;margin-block:34px 65px;font-size:10px;display:grid}.learn-section{grid-template-columns:.8fr 1.2fr;gap:75px;padding-block:20px 85px;display:grid}.learn-section h2{max-width:430px;margin-top:16px;font-size:clamp(30px,4vw,43px);line-height:1.12}.learn-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.learn-grid article{border-top:1px solid var(--line);padding-top:18px}.learn-grid b{color:var(--accent);font-size:11px}.learn-grid h3{margin:22px 0 10px;font-size:15px}.learn-grid p{color:var(--muted);font-size:13px;line-height:1.6}footer{border-top:1px solid var(--line);color:var(--muted)}footer>div{justify-content:space-between;align-items:center;min-height:90px;font-size:12px;display:flex}footer span:first-child{color:var(--text);font-weight:700}.import-page{padding-block:55px 100px}.import-page>.text-button{margin-bottom:45px;padding:0}.import-layout{grid-template-columns:.8fr 1.2fr;align-items:start;gap:80px;display:grid}.import-layout h1{margin:20px 0;font-size:clamp(43px,5vw,65px);line-height:1.05}.import-layout section>p{color:var(--muted);font-size:17px;line-height:1.65}.steps{flex-direction:column;gap:14px;margin:35px 0;padding:0;list-style:none;display:flex}.steps li{color:var(--muted);align-items:center;gap:12px;display:flex}.steps b{border:1px solid var(--line);width:28px;height:28px;color:var(--accent);border-radius:50%;place-items:center;font-size:11px;display:grid}.import-form{flex-direction:column;gap:22px;padding:30px;display:flex}.import-form fieldset,.catalog-detail fieldset{border:0;margin:0;padding:0}.import-form legend,.catalog-detail legend{color:var(--muted);text-transform:uppercase;letter-spacing:.07em;margin-bottom:10px;font-size:12px;font-weight:700}.import-form label{color:var(--muted);text-transform:uppercase;letter-spacing:.07em;flex-direction:column;gap:9px;font-size:12px;font-weight:700;display:flex}.import-form input,.import-form textarea{border:1px solid var(--line);width:100%;color:var(--text);background:var(--bg);text-transform:none;letter-spacing:0;border-radius:10px;outline:none;padding:13px 14px;font-size:14px}.import-form textarea{resize:vertical;min-height:310px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;line-height:1.65}.import-form input:focus,.import-form textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 10%, transparent)}.error-message{color:#ffaaa4;background:#ff5f571a;border:1px solid #ff5f5733;border-radius:9px;padding:12px 14px;font-size:13px}.form-actions{justify-content:space-between;align-items:center;display:flex}.color-choice{grid-template-columns:1fr 1fr;gap:9px;display:grid}.color-choice button{border:1px solid var(--line);background:var(--bg);min-height:46px;color:var(--muted);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;gap:9px;font-weight:700;display:flex}.color-choice button.selected{border-color:var(--accent);color:var(--text);box-shadow:inset 0 0 0 1px var(--accent)}.piece-dot{border:1px solid var(--line);border-radius:50%;width:16px;height:16px}.piece-dot.white{background:#fffdf3}.piece-dot.black{background:#182019;border-color:#5c665e}.today-action{margin:22px 0 2px}.catalog-page{padding-block:55px 100px}.catalog-loading{flex-direction:column;justify-content:center;min-height:65vh;display:flex}.catalog-loading h1{margin-top:18px;font-size:clamp(38px,6vw,62px)}.catalog-page>.text-button{margin-bottom:42px;padding:0}.catalog-intro{grid-template-columns:1.25fr .75fr;align-items:end;gap:70px;margin-bottom:46px;display:grid}.catalog-intro h1{margin:18px 0 0;font-size:clamp(42px,5vw,65px);line-height:1.05}.catalog-intro>p{color:var(--muted);font-size:16px;line-height:1.7}.catalog-layout{grid-template-columns:minmax(0,1.45fr) minmax(310px,.75fr);align-items:start;gap:30px;display:grid}.catalog-search-row{justify-content:space-between;align-items:end;gap:15px;margin-bottom:14px;display:flex}.catalog-search-row label{flex:1}.catalog-search-row label>span{color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px;font-size:10px;font-weight:800;display:block}.catalog-search-row>b{color:var(--muted);white-space:nowrap;padding-bottom:13px;font-size:11px}.catalog-search{border:1px solid var(--line);width:100%;min-height:45px;color:var(--text);background:var(--surface);border-radius:10px;outline:none;padding:0 13px}.catalog-search:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 10%, transparent)}.variation-search{background:var(--bg);margin-bottom:9px}.opening-grid{grid-template-columns:repeat(2,1fr);gap:14px;display:grid}.opening-card{border:1px solid var(--line);text-align:left;min-height:230px;color:var(--text);background:var(--surface);cursor:pointer;border-radius:14px;flex-direction:column;padding:23px;transition:border-color .2s,transform .2s;display:flex;position:relative}.opening-card-select{z-index:1;border-radius:inherit;cursor:pointer;background:0 0;border:0;padding:0;position:absolute;inset:0}.opening-card:hover{border-color:color-mix(in srgb, var(--accent) 45%, var(--line));transform:translateY(-2px)}.opening-card.selected{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.opening-eco{color:var(--accent);letter-spacing:.1em;font-size:10px;font-weight:800}.opening-card h2{margin:13px 0 9px;font-size:21px}.opening-title-link{z-index:2;color:inherit;font:inherit;text-align:left;background:0 0;border:0;padding:0;position:relative}.opening-title-link:hover{color:var(--accent)}.opening-card p{min-height:42px;color:var(--muted);margin:0 0 18px;font-size:12px;line-height:1.55}.tag-row{flex-wrap:wrap;gap:6px;display:flex}.tag{background:var(--surface-2);color:var(--muted);border-radius:99px;padding:5px 8px;font-size:9px;font-weight:700}.opening-card-actions{z-index:2;justify-content:space-between;align-items:end;gap:10px;min-height:31px;margin-top:auto;padding-top:18px;display:flex;position:relative}.opening-card-actions .text-button{padding:0;font-size:10px}.opening-detail-link{color:var(--accent);background:0 0;border:0;padding:0;font-size:10px;font-weight:800}.catalog-detail{flex-direction:column;gap:14px;max-height:calc(100vh - 96px);padding:22px;display:flex;position:sticky;top:82px;overflow:hidden}.mobile-config-back{display:none}.catalog-detail-heading{justify-content:space-between;align-items:end;gap:12px;margin-top:-12px;display:flex}.catalog-detail-heading h2{margin:0;font-size:27px}.catalog-detail-heading .opening-detail-link{flex:none;padding-bottom:3px}.opening-idea{border-left:3px solid var(--accent);background:color-mix(in srgb, var(--accent) 6%, var(--surface-2));border-radius:0 10px 10px 0;padding:15px}.opening-idea>span{color:var(--accent);letter-spacing:.12em;text-transform:uppercase;font-size:9px;font-weight:900}.opening-idea p{color:var(--muted);margin:7px 0 0;font-size:12px;line-height:1.6}.variation-fieldset{flex-direction:column;flex:auto;min-height:110px;display:flex;overflow:hidden}.variation-legend{color:var(--muted);text-transform:uppercase;letter-spacing:.07em;margin-bottom:10px;font-size:12px;font-weight:700}.variation-list{overscroll-behavior:contain;contain:layout paint;scrollbar-gutter:stable;flex:auto;min-height:0;padding-right:3px;display:block;overflow:hidden scroll}.variation-option{border:1px solid var(--line);text-align:left;background:var(--bg);width:100%;color:var(--text);cursor:pointer;border-radius:10px;margin-bottom:8px;padding:13px;display:block}.variation-option.selected{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 5%, var(--bg))}.variation-option b,.variation-option span{display:block}.variation-option b{font-size:13px}.variation-option span{color:var(--muted);margin-top:5px;font-size:11px;line-height:1.45}.selection-summary{color:var(--muted);background:var(--surface-2);border-radius:9px;padding:12px 13px;font-size:11px;line-height:1.5}.catalog-controls{flex-direction:column;flex:none;gap:12px;display:flex}.import-alternative{align-self:center}.catalog-empty{border:1px dashed var(--line);color:var(--muted);text-align:center;border-radius:12px;grid-column:1/-1;padding:38px 20px}.catalog-empty.compact{padding:18px 10px;font-size:11px}.catalog-source{color:var(--muted);margin:14px 2px 0;font-size:10px}.catalog-source a{color:var(--accent)}.opening-detail-page{padding-bottom:95px}.opening-detail-hero{border-bottom:1px solid var(--line);background:linear-gradient(130deg, color-mix(in srgb, var(--surface) 92%, transparent), color-mix(in srgb, var(--accent) 7%, var(--bg)));padding-block:48px 58px}.detail-back{margin-bottom:46px;padding:0}.opening-detail-hero-grid{grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);align-items:end;gap:90px;display:grid}.opening-detail-hero h1{max-width:790px;margin:20px 0 18px;font-size:clamp(56px,7vw,88px);line-height:.95}.opening-detail-hero-grid>div>p{max-width:720px;color:var(--muted);margin-bottom:29px;font-size:18px;line-height:1.7}.opening-facts{gap:17px;padding:27px;display:grid}.opening-facts>span,.opening-facts div span{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;margin-bottom:6px;font-size:9px;font-weight:800;display:block}.opening-facts>strong{border-bottom:1px solid var(--line);color:var(--accent);padding-bottom:20px;font-family:ui-monospace,monospace;font-size:22px}.opening-facts div{grid-template-columns:1fr auto;align-items:end;gap:12px;display:grid}.opening-facts div span{margin:0}.opening-facts div b{font-size:12px}.opening-article-layout{grid-template-columns:minmax(0,760px) 230px;justify-content:center;align-items:start;gap:88px;padding-top:72px;display:grid}.opening-article{min-width:0}.opening-article>section{padding-block:10px 70px;scroll-margin-top:100px}.opening-article h2{margin:13px 0 22px;font-size:clamp(31px,4vw,43px);line-height:1.08}.opening-article h3{letter-spacing:-.02em;margin:0;font-size:15px}.opening-article p,.opening-article li{color:var(--muted);font-size:14px;line-height:1.75}.section-kicker{color:var(--accent);letter-spacing:.12em;text-transform:uppercase;font-size:10px;font-weight:900}.article-lead{font-size:17px!important;line-height:1.85!important}.idea-checklist{gap:12px;margin:0;padding:0;list-style:none;display:grid}.idea-checklist li{border:1px solid var(--line);background:var(--surface);border-radius:11px;padding:15px 18px 15px 47px;position:relative}.idea-checklist li:before{content:"✓";color:var(--accent);font-weight:900;position:absolute;top:15px;left:17px}.side-plan-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.side-plan{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:23px}.side-plan>.piece-dot{margin-bottom:17px;display:inline-block}.side-plan ul{margin:16px 0 0;padding-left:18px}.side-plan li+li{margin-top:9px}.opening-article>.ad-slot{background:repeating-linear-gradient(135deg, transparent, transparent 9px, color-mix(in srgb, var(--line) 22%, transparent) 9px, color-mix(in srgb, var(--line) 22%, transparent) 10px);height:112px;margin:0 0 70px}.ad-slot span{pointer-events:none}.structure-note{border-left:3px solid var(--accent);background:var(--surface-2);border-radius:0 14px 14px 0;grid-template-columns:48px 1fr;align-items:start;gap:20px;padding:25px;display:grid}.structure-note>span{width:48px;height:48px;color:var(--accent-ink);background:var(--accent);border-radius:12px;place-items:center;font-size:27px;display:grid}.structure-note p{margin:0}.detail-card-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.detail-card{border-top:2px solid var(--accent);background:var(--surface);border-radius:0 0 12px 12px;padding:20px}.detail-card>span{color:var(--accent);font-size:9px;font-weight:900}.detail-card h3{margin-top:18px}.detail-card p{margin:9px 0 0;font-size:12px}.mistake-list{gap:10px;display:grid}.mistake-list>div{border:1px solid color-mix(in srgb, #ff7e76 25%, var(--line));border-radius:12px;grid-template-columns:35px 1fr;gap:15px;padding:18px;display:grid}.mistake-list>div>span{color:#ffaaa4;background:#ff5f571a;border-radius:50%;place-items:center;width:31px;height:31px;font-weight:900;display:grid}.mistake-list p{margin:5px 0 0;font-size:12px}.major-variation-list{border-top:1px solid var(--line)}.major-variation-list>div{border-bottom:1px solid var(--line);grid-template-columns:minmax(190px,.7fr) 1.3fr;gap:30px;padding:21px 0;display:grid}.major-variation-list code{color:var(--accent);margin-top:7px;font-size:10px;display:block}.major-variation-list p{margin:0;font-size:12px}.opening-article>.opening-training-cta{border:1px solid color-mix(in srgb, var(--accent) 45%, var(--line));background:linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, var(--surface)), var(--surface));border-radius:17px;margin-bottom:70px;padding:39px}.opening-training-cta h2{max-width:620px}.opening-training-cta p{max-width:600px;margin-bottom:24px}.opening-reference{color:var(--muted);font-size:10px!important}.opening-reference a{color:var(--accent)}.opening-toc{border-left:1px solid var(--line);flex-direction:column;gap:5px;padding-left:20px;display:flex;position:sticky;top:100px}.opening-toc>span{color:var(--text);letter-spacing:.1em;text-transform:uppercase;margin-bottom:9px;font-size:10px;font-weight:900}.opening-toc a{color:var(--muted);padding:7px 0;font-size:11px;text-decoration:none}.opening-toc a:hover{color:var(--accent)}.opening-toc .button{margin-top:15px;padding-inline:12px;font-size:11px}.training-page{background:var(--bg);min-height:100vh}.training-bar{border-bottom:1px solid var(--line);height:68px;color:var(--muted);grid-template-columns:38px 1fr auto;align-items:center;gap:24px;padding:0 max(20px,50vw - 580px);font-size:12px;display:grid}.progress{background:var(--surface-2);border-radius:99px;height:4px;overflow:hidden}.progress span{border-radius:inherit;background:var(--accent);height:100%;transition:width .3s;display:block}.training-layout{grid-template-columns:minmax(400px,680px) minmax(280px,1fr);align-items:center;gap:clamp(45px,7vw,100px);padding-block:40px 70px;display:grid}.board-toolbar{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.board-toolbar .text-button{font-size:12px}.board{aspect-ratio:1;border:1px solid #ffffff12;border-radius:13px;grid-template-columns:repeat(8,1fr);width:100%;display:grid;overflow:hidden;box-shadow:0 26px 60px #00000047}.square{aspect-ratio:1;border:0;place-items:center;padding:0;display:grid;position:relative;overflow:hidden}.square.light{background:#dce3d2}.square.dark{background:#6c8065}.square.selected{box-shadow:inset 0 0 0 5px #b6ed3dbf}.square.answer:after{content:"";z-index:1;border:3px solid #b6ed3d;border-radius:7px;position:absolute;inset:5px}.piece{z-index:3;cursor:grab;-webkit-user-select:none;user-select:none;filter:drop-shadow(0 2px 1px #00000057);font-family:Times New Roman,serif;font-size:clamp(32px,6.1vw,70px);line-height:1;position:relative}.white-piece{color:#fffdf3;-webkit-text-stroke:1px #0006}.black-piece{color:#172019;-webkit-text-stroke:1px #ffffff2e}.move-dot{z-index:4;pointer-events:none;background:#1c321a7a;border-radius:50%;width:18%;height:18%;position:absolute}.move-dot.capture{background:0 0;border:5px solid #1c321a73;width:80%;height:80%}.rank-label,.file-label{z-index:5;opacity:.7;pointer-events:none;font-size:clamp(7px,1vw,11px);font-weight:700;position:absolute}.rank-label{top:4px;left:5px}.file-label{bottom:3px;right:5px}.training-side h1{margin:17px 0 13px;font-size:clamp(34px,4vw,51px);line-height:1.08}.line-preview{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;min-height:24px;font-family:ui-monospace,monospace;font-size:13px;overflow:hidden}.hint-card,.feedback{background:var(--surface);border:1px solid var(--line);border-radius:12px;gap:14px;margin-block:30px 18px;padding:17px;display:flex}.hint-card>span,.feedback>span{background:var(--surface-2);border-radius:10px;flex:0 0 39px;place-items:center;height:39px;font-size:21px;display:grid}.hint-card b,.feedback b{font-size:14px}.hint-card p,.feedback p{color:var(--muted);margin:4px 0 0;font-size:12px;line-height:1.5}.feedback.correct-feedback{border-color:color-mix(in srgb, var(--accent) 35%, var(--line))}.correct-feedback>span{color:var(--accent);background:color-mix(in srgb, var(--accent) 12%, transparent)}.feedback.wrong-feedback{border-color:#ff5f5759}.wrong-feedback>span{color:#ff7e76;background:#ff5f571a}.keyboard-note{text-align:center;color:var(--muted);margin-top:24px;font-size:10px}.completion{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:100vh;display:flex}.completion-mark{background:var(--accent);width:70px;height:70px;color:var(--accent-ink);border-radius:50%;place-items:center;margin-bottom:26px;font-size:31px;font-weight:800;display:grid}.completion h1{margin:15px 0 10px;font-size:55px}.completion p{color:var(--muted);margin-bottom:28px}.session-gate,.results-page{place-items:center;min-height:100vh;padding-block:50px;display:grid}.gate-card,.report-card{text-align:center;width:min(100%,620px);padding:clamp(28px,6vw,54px)}.phase-number{width:54px;height:54px;color:var(--accent-ink);background:var(--accent);border-radius:15px;place-items:center;margin:0 auto 25px;font-size:15px;font-weight:900;display:grid}.gate-card h1,.report-card h1{margin:18px 0 13px;font-size:clamp(38px,6vw,58px);line-height:1.05}.gate-card>p,.report-card>p{max-width:490px;color:var(--muted);margin:0 auto;line-height:1.7}.gate-facts{grid-template-columns:repeat(3,1fr);gap:10px;margin:32px 0;display:grid}.gate-facts span{color:var(--muted);background:var(--surface-2);border-radius:11px;flex-direction:column;gap:4px;padding:15px 8px;font-size:11px;display:flex}.gate-facts b{color:var(--text);font-size:16px}.gate-card>.text-button{margin:18px auto 0;display:block}.score-ring{border:10px solid color-mix(in srgb, var(--accent) 25%, var(--surface-2));border-top-color:var(--accent);border-right-color:var(--accent);border-radius:50%;justify-content:center;align-items:baseline;width:158px;height:158px;margin:27px auto;padding-top:45px;display:flex}.score-ring strong{letter-spacing:-.08em;font-size:54px;line-height:1}.score-ring span{color:var(--muted);margin-left:7px;font-size:14px}.report-metrics{border-block:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin:34px 0;display:grid}.report-metrics div{flex-direction:column;gap:5px;padding:19px 8px;display:flex}.report-metrics div+div{border-left:1px solid var(--line)}.report-metrics b{font-size:21px}.report-metrics span{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:10px}.report-actions{justify-content:center;gap:10px;display:flex}.challenge-intro,.challenge-results{min-height:100vh;padding-block:34px 70px}.challenge-exit{margin-bottom:28px;padding:0}.challenge-intro-grid,.challenge-results{grid-template-columns:minmax(0,1.15fr) minmax(330px,.85fr);align-items:start;gap:24px;display:grid}.challenge-hero{background:radial-gradient(circle at 85% 15%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 35%), var(--surface);flex-direction:column;justify-content:center;align-items:flex-start;min-height:610px;padding:clamp(30px,5vw,55px);display:flex}.challenge-mark{color:var(--accent-ink);background:var(--accent);letter-spacing:.04em;border-radius:9px;margin-bottom:32px;padding:9px 13px;font-family:ui-monospace,monospace;font-size:14px;font-weight:900;display:inline-flex}.challenge-hero h1{max-width:650px;margin:18px 0;font-size:clamp(43px,6vw,70px);line-height:.98}.challenge-hero>p{max-width:590px;color:var(--muted);margin-bottom:25px;font-size:16px;line-height:1.7}.challenge-name{width:min(100%,380px);color:var(--muted);letter-spacing:.09em;text-transform:uppercase;flex-direction:column;gap:8px;margin-bottom:14px;font-size:10px;font-weight:800;display:flex}.challenge-name input{border:1px solid var(--line);min-height:47px;color:var(--text);background:var(--bg);text-transform:none;letter-spacing:normal;border-radius:10px;outline:none;padding:0 14px}.challenge-name input:focus{border-color:var(--accent)}.challenge-rules{grid-template-columns:repeat(3,1fr);gap:8px;width:100%;margin-top:30px;display:grid}.challenge-rules span{color:var(--muted);background:var(--surface-2);border-radius:10px;flex-direction:column;gap:3px;padding:13px;font-size:10px;display:flex}.challenge-rules b{color:var(--text);font-size:14px}.challenge-leaderboard{border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:25px}.challenge-section-heading{justify-content:space-between;align-items:end;gap:20px;margin-bottom:20px;display:flex}.challenge-section-heading h2{margin:10px 0 0;font-size:26px}.challenge-section-heading>span{color:var(--muted);font-size:10px}.challenge-leaderboard ol{margin:0;padding:0;list-style:none}.challenge-leaderboard li{border-top:1px solid var(--line);grid-template-columns:25px 1fr auto;align-items:center;gap:10px;min-height:55px;padding:8px 7px;display:grid}.challenge-leaderboard li.current{border-color:color-mix(in srgb, var(--accent) 35%, var(--line));background:color-mix(in srgb, var(--accent) 7%, var(--surface));border-radius:9px;margin-inline:-8px;padding-inline:15px}.challenge-leaderboard li>b{color:var(--muted);font-size:11px}.challenge-leaderboard li>span{flex-direction:column;gap:3px;min-width:0;display:flex}.challenge-leaderboard li strong{text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.challenge-leaderboard li small{color:var(--muted);font-size:9px}.challenge-leaderboard li em{color:var(--accent);font-size:22px;font-style:normal;font-weight:900}.challenge-empty{color:var(--muted);text-align:center;padding:35px 10px;font-size:12px;line-height:1.6}.challenge-play{background:var(--bg);min-height:100vh}.challenge-bar{border-bottom:1px solid var(--line);grid-template-columns:42px 1fr auto 1fr;align-items:center;gap:25px;height:72px;padding-inline:max(20px,50vw - 580px);display:grid}.challenge-bar>div{align-items:baseline;gap:8px;display:flex}.challenge-bar>div:last-child{justify-content:flex-end}.challenge-bar span{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:9px;font-weight:800}.challenge-bar strong{font-size:19px}.challenge-bar time{min-width:94px;color:var(--accent);text-align:center;font-family:ui-monospace,monospace;font-size:31px;font-weight:900}.challenge-bar time.urgent{color:#ff7e76}.challenge-layout{grid-template-columns:minmax(430px,680px) minmax(280px,1fr);align-items:center;gap:clamp(45px,7vw,100px);padding-block:35px 60px;display:grid}.challenge-board .board-toolbar>span:last-child{color:var(--muted);font-size:11px;font-weight:700}.challenge-prompt h1{margin:17px 0 10px;font-size:clamp(42px,5vw,66px);line-height:1}.challenge-position-label{color:var(--muted);font-size:12px}.challenge-streak{border-top:1px solid var(--line);color:var(--muted);text-transform:uppercase;letter-spacing:.08em;justify-content:space-between;align-items:baseline;margin-top:22px;padding-top:18px;font-size:10px;display:flex}.challenge-streak strong{color:var(--text);font-size:22px}.challenge-results{align-items:center}.challenge-result-card{text-align:center;padding:clamp(28px,5vw,52px)}.challenge-final-score{color:var(--accent);letter-spacing:-.08em;margin-top:22px;font-size:clamp(90px,13vw,150px);line-height:.8;display:block}.challenge-result-card h1{margin:24px 0 10px;font-size:clamp(35px,5vw,52px)}.challenge-result-card>p{color:var(--muted)}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.today-action{margin-top:10px}.tool-grid{grid-template-columns:repeat(4,1fr);gap:14px;padding-block:12px 80px;display:grid}.tool-card{min-height:230px;color:var(--text);text-align:left;cursor:pointer;flex-direction:column;justify-content:space-between;align-items:flex-start;padding:25px;transition:transform .2s,border-color .2s;display:flex}.tool-card:hover{border-color:color-mix(in srgb, var(--accent) 45%, var(--line));transform:translateY(-3px)}.tool-card>span{color:var(--accent);font-family:ui-monospace,monospace;font-size:11px;font-weight:900}.tool-card h2{margin:30px 0 8px;font-size:23px}.tool-card p{color:var(--muted);margin:0;font-size:12px;line-height:1.65}.tool-card>b{color:var(--accent);font-size:11px}.tool-card.featured{border-color:color-mix(in srgb, var(--accent) 52%, var(--line));background:linear-gradient(145deg, color-mix(in srgb, var(--accent) 8%, var(--surface)), var(--surface));grid-column:span 2}.tool-card.featured h2{font-size:29px}.utility-links{justify-content:center;gap:28px;margin-top:-45px;padding-bottom:70px;display:flex}.utility-links .text-button{padding:0;font-size:11px}.repertoire-section{padding-block:25px 55px}.repertoire-section>.section-heading{margin-bottom:18px}.repertoire-section>.section-heading h2{margin:9px 0 0;font-size:clamp(28px,4vw,42px)}.repertoire-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.repertoire-card{min-height:180px;color:var(--text);text-align:left;cursor:pointer;flex-direction:column;align-items:flex-start;padding:21px;transition:transform .2s,border-color .2s;display:flex}.repertoire-card:hover{border-color:color-mix(in srgb, var(--accent) 40%, var(--line));transform:translateY(-2px)}.repertoire-card h3{margin:18px 0 8px;font-size:19px;line-height:1.25}.repertoire-card p{color:var(--muted);margin:0 0 20px;font-size:10px}.repertoire-card b{color:var(--accent);margin-top:auto;font-size:10px}.analysis-page,.insights-page,.data-page{min-height:calc(100vh - 70px);padding-block:35px 80px}.analysis-page>.text-button,.insights-page>.text-button,.data-page>.text-button{margin-bottom:55px;padding:0}.analysis-layout{grid-template-columns:minmax(0,1fr) minmax(390px,.8fr);align-items:start;gap:clamp(45px,8vw,110px);display:grid}.analysis-layout h1,.insights-header h1,.data-page>header h1{letter-spacing:-.045em;margin:18px 0;font-size:clamp(45px,6vw,72px);line-height:.98}.analysis-layout h1 em,.insights-header h1 em,.data-page>header h1 em{color:var(--accent);font-style:normal}.analysis-layout>section>p,.data-page>header p{max-width:630px;color:var(--muted);font-size:16px;line-height:1.75}.analysis-benefits{gap:12px;margin:32px 0 0;padding:0;list-style:none;display:grid}.analysis-benefits li{color:var(--muted);font-size:13px}.analysis-benefits li:before{content:"✓";color:var(--accent);margin-right:10px;font-weight:900}.analysis-form{gap:20px;padding:27px;display:grid}.analysis-form label,.analysis-form fieldset{color:var(--text);border:0;gap:8px;margin:0;padding:0;font-size:11px;font-weight:800;display:grid}.analysis-form label>span{color:var(--muted);font-weight:500}.analysis-form input,.analysis-form textarea,.challenge-config select{border:1px solid var(--line);width:100%;color:var(--text);background:var(--bg);font:inherit;border-radius:10px;outline:none;font-weight:500}.analysis-form input{min-height:46px;padding:0 13px}.analysis-form textarea{resize:vertical;min-height:180px;padding:13px;font-family:ui-monospace,monospace;font-size:11px;line-height:1.55}.analysis-form input:focus,.analysis-form textarea:focus,.challenge-config select:focus{border-color:var(--accent)}.analysis-form fieldset>p{color:var(--muted);margin:0 0 2px;font-size:10px;font-weight:500}.pgn-drop{border:1px dashed color-mix(in srgb, var(--accent) 55%, var(--line));min-height:78px;color:var(--text);background:color-mix(in srgb, var(--accent) 4%, var(--surface));cursor:pointer;border-radius:11px;flex-direction:column;justify-content:center;align-items:center;gap:5px;display:flex}.pgn-drop span{font-size:12px;font-weight:800}.pgn-drop small{color:var(--muted);font-size:9px}.error-message,.success-message,.analysis-note{border-radius:9px;padding:13px 15px;font-size:11px;line-height:1.5}.error-message{color:#ff9b95;background:#ff5f571a;border:1px solid #ff5f5740}.success-message{color:var(--accent);background:color-mix(in srgb, var(--accent) 9%, transparent);border:1px solid color-mix(in srgb, var(--accent) 25%, transparent)}.analysis-report{text-align:center;width:min(100%,820px);margin:20px auto;padding:clamp(30px,6vw,58px)}.analysis-report h1{margin:17px 0 12px;font-size:clamp(42px,6vw,65px)}.analysis-report>p{max-width:620px;color:var(--muted);margin:auto;line-height:1.7}.analysis-metrics{border-block:1px solid var(--line);grid-template-columns:repeat(4,1fr);margin:38px 0;display:grid}.analysis-metrics div{flex-direction:column;gap:5px;padding:20px 8px;display:flex}.analysis-metrics div+div{border-left:1px solid var(--line)}.analysis-metrics strong{font-size:26px}.analysis-metrics span{color:var(--muted);text-transform:uppercase;font-size:9px}.analysis-note{color:var(--muted);background:var(--surface-2)}.insights-header{justify-content:space-between;align-items:end;gap:30px;margin-bottom:45px;display:flex}.insights-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}.insight-summary{grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:12px;display:grid}.insight-summary article{flex-direction:column;gap:7px;padding:22px;display:flex}.insight-summary span,.insight-summary small{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:9px}.insight-summary strong{color:var(--accent);font-size:36px}.activity-panel{margin-bottom:12px;padding:25px}.activity-strip{grid-template-columns:repeat(30,1fr);align-items:end;gap:5px;height:70px;display:grid}.activity-strip span{background:var(--accent);border-radius:4px;height:100%;min-height:8px}.insights-grid{grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);gap:12px;display:grid}.insights-grid>section{padding:25px;overflow:hidden}.insight-table-head,.insight-table-row{grid-template-columns:minmax(170px,1fr) 78px 120px 55px;align-items:center;gap:12px;padding:12px 4px;display:grid}.insight-table-head{color:var(--muted);border-bottom:1px solid var(--line);text-transform:uppercase;font-size:9px}.insight-table-row{border-bottom:1px solid var(--line);font-size:11px}.insight-table-row>span:first-child{flex-direction:column;gap:4px;min-width:0;display:flex}.insight-table-row b{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.insight-table-row small{color:var(--muted);font-size:9px}.insight-table-row i{background:var(--surface-2);border-radius:5px;width:56px;height:5px;margin-right:6px;display:inline-block;overflow:hidden}.insight-table-row i em{background:var(--accent);height:100%;display:block}.weak-position-list{display:grid}.weak-position-list article{border-top:1px solid var(--line);grid-template-columns:25px 1fr auto;align-items:center;gap:10px;padding:14px 2px;display:grid}.weak-position-list article>b{color:var(--muted);font-size:10px}.weak-position-list article>span{flex-direction:column;gap:4px;min-width:0;display:flex}.weak-position-list article strong,.weak-position-list article small{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.weak-position-list article strong{font-size:11px}.weak-position-list article small{color:var(--muted);font-size:9px}.weak-position-list article em{color:#ff8f88;font-size:10px;font-style:normal}.empty-copy{color:var(--muted);padding-block:25px;font-size:11px;line-height:1.6}.data-page>header{max-width:820px;margin-bottom:45px}.data-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.data-card{flex-direction:column;justify-content:space-between;align-items:flex-start;min-height:360px;padding:30px;display:flex}.data-card h2{margin:13px 0 10px;font-size:29px}.data-card p,.privacy-note p{color:var(--muted);font-size:12px;line-height:1.7}.data-icon{width:46px;height:46px;color:var(--accent-ink);background:var(--accent);border-radius:12px;place-items:center;font-size:23px;font-weight:900;display:grid}.data-message{width:100%;margin-top:10px}.privacy-note{grid-column:1/-1;align-items:center;gap:22px;padding:19px 24px;display:flex}.privacy-note p{margin:0}.challenge-config{grid-template-columns:1fr 1fr;gap:10px;width:100%;margin-bottom:15px;display:grid}.challenge-config label{min-width:0;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;gap:6px;font-size:9px;font-weight:800;display:grid}.challenge-config select{appearance:none;min-height:43px;padding:0 12px}.leaderboard-mode{color:var(--muted);margin:-10px 0 12px;font-size:9px;line-height:1.5}.offline-badge,.install-badge{z-index:60;border:1px solid var(--line);min-height:38px;color:var(--text);background:var(--surface);border-radius:20px;align-items:center;padding:0 14px;font-size:10px;font-weight:800;display:flex;position:fixed;bottom:16px;right:16px;box-shadow:0 10px 30px #0003}.install-badge{cursor:pointer}@media (width<=850px){.hero{grid-template-columns:1fr;gap:45px;padding-top:60px}.today-card{transform:none}.stats-grid{grid-template-columns:1fr 1fr}.chart-panel{grid-column:1/-1}.import-layout{grid-template-columns:1fr;gap:30px}.catalog-intro,.catalog-layout{grid-template-columns:1fr}.catalog-intro{gap:15px}.catalog-detail{max-height:none;position:static;overflow:visible}.variation-fieldset{flex:none;min-height:0;overflow:hidden}.variation-list{touch-action:pan-y;-webkit-overflow-scrolling:touch;flex:none;height:min(45vh,360px);max-height:none}.catalog-controls{flex:none}.catalog-page.mobile-config-open{width:min(100% - 24px,620px);padding-block:12px}.catalog-page.mobile-config-open>.text-button,.catalog-page.mobile-config-open>.catalog-intro,.catalog-page.mobile-config-open .catalog-library{display:none}.catalog-page.mobile-config-open .catalog-layout{display:block}.catalog-page.mobile-config-open .catalog-detail{gap:10px;height:calc(100dvh - 94px);max-height:calc(100dvh - 94px);padding:17px;overflow:hidden}.catalog-page.mobile-config-open .mobile-config-back{align-self:flex-start;padding:0;display:block}.catalog-page.mobile-config-open .variation-fieldset{flex:auto;min-height:120px}.catalog-page.mobile-config-open .variation-list{flex:auto;height:auto;min-height:90px}.catalog-page.mobile-config-open .opening-idea{padding:11px 13px}.catalog-page.mobile-config-open .opening-idea p{-webkit-line-clamp:3;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.opening-detail-hero-grid{grid-template-columns:1fr;gap:35px}.opening-facts{max-width:560px}.opening-article-layout{grid-template-columns:minmax(0,760px)}.opening-toc{display:none}.learn-section{grid-template-columns:1fr;gap:25px}.training-layout{grid-template-columns:1fr;gap:35px;max-width:680px}.training-side{flex-direction:column;display:flex}.training-side .eyebrow,.training-side h1,.training-side .line-preview{text-align:center}.challenge-intro-grid,.challenge-results{grid-template-columns:1fr}.challenge-hero{min-height:auto}.challenge-layout{grid-template-columns:1fr;gap:28px;max-width:680px}.challenge-prompt{text-align:center}.challenge-prompt .hint-card,.challenge-prompt .feedback{text-align:left}.tool-grid{grid-template-columns:1fr}.tool-card{min-height:175px}.tool-card.featured{grid-column:auto}.repertoire-grid{grid-template-columns:1fr 1fr}.utility-links{flex-wrap:wrap;margin-top:-50px}.analysis-layout,.insights-grid{grid-template-columns:1fr}.analysis-page>.text-button,.insights-page>.text-button,.data-page>.text-button{margin-bottom:35px}.insight-summary{grid-template-columns:1fr 1fr}.data-grid{grid-template-columns:1fr}.privacy-note{grid-column:auto}}@media (width>=851px) and (height<=800px){.catalog-detail{gap:10px;max-height:calc(100vh - 82px);padding:17px;top:72px}.opening-idea{padding:10px 12px}.opening-idea p{-webkit-line-clamp:3;-webkit-box-orient:vertical;margin-top:5px;line-height:1.45;display:-webkit-box;overflow:hidden}.color-choice button{min-height:39px}.selection-summary{padding:8px 10px}.catalog-controls{gap:8px}}@media (width<=850px) and (height<=650px){.catalog-page.mobile-config-open{padding-top:5px}.catalog-page.mobile-config-open .catalog-detail{gap:6px;height:calc(100dvh - 70px);max-height:calc(100dvh - 70px);padding:10px 12px}.catalog-page.mobile-config-open .catalog-detail>.eyebrow,.catalog-page.mobile-config-open .opening-idea,.catalog-page.mobile-config-open .selection-summary,.catalog-page.mobile-config-open .import-alternative{display:none}.catalog-page.mobile-config-open .catalog-detail-heading{align-items:center;margin-top:0}.catalog-page.mobile-config-open .catalog-detail-heading h2{font-size:22px;line-height:1}.catalog-page.mobile-config-open .variation-fieldset{min-height:80px}.catalog-page.mobile-config-open .variation-legend{margin-bottom:5px}.catalog-page.mobile-config-open .variation-search{min-height:38px;margin-bottom:5px}.catalog-page.mobile-config-open .variation-list{min-height:50px}.catalog-page.mobile-config-open .variation-option{margin-bottom:5px;padding:9px 11px}.catalog-page.mobile-config-open .catalog-controls{gap:6px}.catalog-page.mobile-config-open .catalog-controls legend{margin-bottom:5px}.catalog-page.mobile-config-open .color-choice button{min-height:36px}.catalog-page.mobile-config-open .catalog-controls>.button{min-height:43px}}@media (width<=640px){.nav-link{display:none}.repertoire-section .text-button,.utility-links .text-button{min-height:44px}}@media (width<=560px){.page-shell{width:min(100% - 24px,1160px)}.nav{height:60px}.hero{padding-block:50px 35px}.hero h1{font-size:46px}.hero-copy>p{font-size:16px}.hero-actions{flex-direction:column}.today-card{padding:21px}.due-number{margin-top:28px;font-size:70px}.empty-state{grid-template-columns:auto 1fr}.empty-state .button{grid-column:1/-1}.stats-grid,.learn-grid{grid-template-columns:1fr}.chart-panel{grid-column:auto}.import-page,.catalog-page{padding-top:30px}.catalog-page.mobile-config-open{padding-top:10px}.opening-grid{grid-template-columns:1fr}.opening-detail-hero{padding-block:28px 42px}.detail-back{margin-bottom:35px}.opening-detail-hero h1{font-size:48px}.opening-detail-hero-grid>div>p{font-size:16px}.opening-article-layout{padding-top:48px}.opening-article>section{padding-bottom:55px}.side-plan-grid,.detail-card-grid{grid-template-columns:1fr}.major-variation-list>div{grid-template-columns:1fr;gap:11px}.opening-article>.opening-training-cta{padding:27px}.import-layout h1{font-size:41px}.import-form{padding:19px}.form-actions{flex-direction:column-reverse;align-items:stretch;gap:13px}.training-bar{gap:13px;padding-inline:12px}.training-layout{width:100%;padding:12px 12px 45px}.board{border-radius:8px}.piece{font-size:11.8vw}.training-side{padding-inline:5px}.training-side h1{font-size:35px}.gate-facts{grid-template-columns:1fr}.report-actions{flex-direction:column}.challenge-intro,.challenge-results{width:min(100% - 24px,620px);padding-block:18px 40px}.challenge-hero,.challenge-leaderboard{padding:22px}.challenge-hero h1{font-size:42px}.challenge-rules{grid-template-columns:1fr}.challenge-bar{grid-template-columns:38px 1fr auto;gap:9px;height:62px;padding-inline:10px}.challenge-bar>div:last-child{display:none}.challenge-bar>div{flex-direction:column;gap:0}.challenge-bar time{min-width:78px;font-size:25px}.challenge-layout{width:100%;padding:10px 12px 40px}.challenge-prompt h1{font-size:39px}.challenge-position-label{margin-bottom:0}.analysis-layout h1,.insights-header h1,.data-page>header h1{font-size:43px}.analysis-form{padding:19px}.analysis-metrics{grid-template-columns:1fr 1fr}.analysis-metrics div:nth-child(3){border-left:0;border-top:1px solid var(--line)}.analysis-metrics div:nth-child(4){border-top:1px solid var(--line)}.insights-header,.insights-actions{flex-direction:column;align-items:stretch}.insight-summary{grid-template-columns:1fr}.activity-strip{gap:3px}.insight-table{overflow-x:auto}.insight-table-head,.insight-table-row{min-width:570px}.data-card{min-height:300px;padding:22px}.privacy-note{flex-direction:column;align-items:flex-start;gap:4px}.challenge-config{grid-template-columns:1fr}.utility-links{flex-direction:column;align-items:flex-start;gap:15px}.repertoire-section>.section-heading{flex-direction:column;align-items:flex-start}.repertoire-grid{grid-template-columns:1fr}.repertoire-card{min-height:155px}footer>div{flex-direction:column;justify-content:center;gap:8px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important}}