.language-selector[data-v-5b914627]{font-size:12px;position:relative}.language-selector button[data-v-5b914627]{border:1px solid var(--line);background:var(--paper,#faf9f4);min-height:44px;color:var(--ink);font:inherit;border-radius:4px;padding:8px 10px}.language-trigger[data-v-5b914627]{align-items:center;gap:8px;display:flex}.language-options[data-v-5b914627]{z-index:20;border:1px solid var(--line);background:#faf9f4;border-radius:6px;gap:4px;min-width:160px;padding:5px;display:grid;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 6px 18px #253e3520}.language-options button[data-v-5b914627]{text-align:left;border-color:#0000;justify-content:space-between;display:flex}.language-options button[aria-pressed=true][data-v-5b914627]{background:#e9eddc}@media (width<=680px){.language-selector[data-v-5b914627]{position:static}.site-header nav>a.admin-link[data-v-b219e540]{justify-content:center;align-items:center;min-width:44px;min-height:44px;display:inline-flex}}.cg-wrap{box-sizing:content-box;display:block;position:relative}cg-container{width:100%;height:100%;display:block;position:absolute;top:0}cg-board{-webkit-user-select:none;user-select:none;background-size:cover;width:100%;height:100%;line-height:0;position:absolute;top:0;left:0}.cg-wrap.manipulable cg-board{cursor:pointer}cg-board square{pointer-events:none;width:12.5%;height:12.5%;position:absolute;top:0;left:0}cg-board square.move-dest{pointer-events:auto}cg-board square.last-move{will-change:transform}.cg-wrap piece{z-index:2;will-change:transform;pointer-events:none;background-size:cover;width:12.5%;height:12.5%;position:absolute;top:0;left:0}cg-board piece.dragging{cursor:move;z-index:11!important}piece.anim{z-index:8}piece.fading{z-index:1;opacity:.5}.cg-wrap piece.ghost{opacity:.3}.cg-wrap piece svg{pointer-events:none;z-index:2;opacity:.6;width:100%;height:100%;position:relative;top:0;left:0;overflow:hidden}.cg-wrap cg-auto-pieces,.cg-wrap .cg-shapes,.cg-wrap .cg-custom-svgs,.cg-wrap .cg-shapes-below,.cg-wrap .cg-custom-below{pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0;overflow:visible}.cg-wrap cg-auto-pieces{z-index:2}.cg-wrap cg-auto-pieces piece{opacity:.3}.cg-wrap .cg-shapes{opacity:.6;z-index:2;overflow:hidden}.cg-wrap .cg-shapes-below{z-index:1;overflow:hidden}.cg-wrap .cg-custom-below{z-index:1}.cg-wrap .cg-custom-svgs{z-index:9}.cg-wrap .cg-custom-svgs svg,.cg-wrap .cg-custom-below svg{overflow:visible}.cg-wrap coords{pointer-events:none;opacity:.8;font-family:sans-serif;font-size:9px;display:flex;position:absolute}.cg-wrap coords.ranks{flex-flow:column-reverse;width:12px;height:100%;top:-20px;left:4px}.cg-wrap coords.ranks.black{flex-flow:column}.cg-wrap coords.ranks.left{align-items:flex-end;left:-15px}.cg-wrap coords.files{text-transform:uppercase;text-align:center;flex-flow:row;width:100%;height:16px;bottom:-4px;left:24px}.cg-wrap coords.files.black{flex-flow:row-reverse}.cg-wrap coords coord{flex:auto}.cg-wrap coords.ranks coord{transform:translateY(39%)}.cg-wrap coords.squares{text-transform:uppercase;text-align:right;flex-flow:column-reverse;width:12.5%;height:100%;bottom:0;left:0}.cg-wrap coords.squares.black{flex-flow:column}.cg-wrap coords.squares.left{text-align:left}.cg-wrap coords.squares coord{padding:6% 4%}.cg-wrap coords.squares.rank2{transform:translate(100%)}.cg-wrap coords.squares.rank3{transform:translate(200%)}.cg-wrap coords.squares.rank4{transform:translate(300%)}.cg-wrap coords.squares.rank5{transform:translate(400%)}.cg-wrap coords.squares.rank6{transform:translate(500%)}.cg-wrap coords.squares.rank7{transform:translate(600%)}.cg-wrap coords.squares.rank8{transform:translate(700%)}.cg-wrap piece.pawn.white{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.bishop.white{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.knight.white{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.rook.white{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.queen.white{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.king.white{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.pawn.black{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.bishop.black{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.knight.black{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.rook.black{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.queen.black{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.king.black{background-image:url(data:image/svg+xml;base64,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)}.chess-board{aspect-ratio:1;width:100%}.chess-board cg-board{box-shadow:0 0 0 3px var(--ink,#182544);background-color:#f9fafc;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 80'%3E%3Cdefs%3E%3Cpattern id='h' width='3.5355' height='3.5355' patternUnits='userSpaceOnUse' patternTransform='rotate(45)'%3E%3Crect width='3.5355' height='3.5355' fill='%23d9dfea'/%3E%3Crect width='1.15' height='3.5355' fill='%23394a72'/%3E%3C/pattern%3E%3C/defs%3E%3Crect x='40' width='40' height='40' fill='url(%23h)'/%3E%3Crect y='40' width='40' height='40' fill='url(%23h)'/%3E%3C/svg%3E");background-size:25% 25%}.chess-board square.last-move{background-color:#ffd93dc0}.chess-board square.selected{box-shadow:inset 0 0 0 3px var(--ink,#182544);background-color:#ffd21fe0}.chess-board square.move-dest{background:radial-gradient(circle, var(--ink,#182544) 0 15%, #fff 16% 22%, transparent 23%)}.chess-board square.move-dest:hover{background-color:#ffe9809c}.chess-board square.oc.move-dest{background:radial-gradient(circle, transparent 0 64%, #fff 65% 68%, var(--ink,#182544) 69% 78%, transparent 79%)}.chess-board cg-board square.check{background:radial-gradient(circle,#d8433a 0 22%,#d8433a00 72%)}.chess-board square.hint-origin,.chess-board square.hint-destination{background-color:#ffd93de6}.chess-board square.hint-origin:after,.chess-board square.hint-destination:after{content:"";border:3px solid var(--ink,#182544);border-radius:50%;animation:1.4s ease-in-out infinite lesson-hint-pulse;position:absolute;inset:7%}.chess-board square.hint-destination:after{border-style:dashed;border-radius:4px;inset:12%}@keyframes lesson-hint-pulse{50%{opacity:.35;transform:scale(.9)}}.cg-wrap.chess-board coords{opacity:1;font-family:inherit;font-size:11px;font-weight:700}.cg-wrap.chess-board coords.files{text-transform:none;bottom:1px;left:0}.cg-wrap.chess-board coords.files coord{text-align:right;padding-right:4px}.cg-wrap.chess-board coords coord{color:var(--ink,#182544);text-shadow:0 0 2px #fff,0 0 2px #fff,0 0 3px #fff}@media (prefers-reduced-motion:reduce){.chess-board square.hint-origin:after,.chess-board square.hint-destination:after{animation:none}}.hero[data-v-cbca694a]{grid-template-columns:minmax(0,1fr) minmax(0,600px);grid-template-areas:"title title""copy demo";gap:40px 56px;padding-block:48px 72px;display:grid}.hero h1[data-v-cbca694a]{letter-spacing:-.035em;text-wrap:wrap;grid-area:title;margin:0;font-size:clamp(40px,5.4vw,70px);font-weight:850;line-height:1}.hero-copy[data-v-cbca694a]{grid-area:copy;padding-top:8px}.hero-description[data-v-cbca694a]{color:var(--pencil);max-width:34em;margin-bottom:32px;font-size:19px;line-height:1.55}.hero-actions[data-v-cbca694a]{flex-wrap:wrap;align-items:center;gap:12px 28px;display:flex}.hero-demo[data-v-cbca694a]{grid-area:demo;grid-template-columns:minmax(0,1fr) 150px;align-items:end;gap:28px;margin:0;display:grid}.hero-board[data-v-cbca694a]{padding:3px}.scoresheet[data-v-cbca694a]{font-size:15px}.scoresheet-title[data-v-cbca694a]{font-size:19px;font-weight:800;font-stretch:var(--semi-wide);margin-bottom:10px;display:block}.scoresheet ol[data-v-cbca694a]{border-top:2px solid var(--ink);margin:0 0 16px;padding:0;list-style:none}.scoresheet li[data-v-cbca694a]{border-bottom:1px solid var(--rule);grid-template-columns:26px 1fr 1fr;align-items:center;min-height:38px;font-weight:650;display:grid}.scoresheet li span[data-v-cbca694a]{justify-self:start;padding:1px 4px;transition:color .2s,background-color .2s}.move-number[data-v-cbca694a]{color:var(--pencil);font-weight:500}.scoresheet .is-now[data-v-cbca694a]{background:var(--marker)}.scoresheet .is-ahead[data-v-cbca694a]{color:#b6bdca}.scoresheet p[data-v-cbca694a]{color:var(--pencil);line-height:1.45}.replay-button[data-v-cbca694a]{min-height:40px;padding-inline:12px;font-size:14px}.approach[data-v-cbca694a]{border-top:1px solid var(--rule);padding-block:48px 24px}.approach h2[data-v-cbca694a]{margin-bottom:32px;font-size:clamp(26px,3vw,34px)}.steps[data-v-cbca694a]{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 56px;margin:0;padding:0;list-style:none;display:grid}.steps li[data-v-cbca694a]{grid-template-columns:auto minmax(0,1fr);gap:22px;display:grid}.step-number[data-v-cbca694a]{font-size:64px;font-weight:850;font-stretch:var(--wide);color:var(--ink);-webkit-text-stroke:0;line-height:.82}.steps h3[data-v-cbca694a]{margin-bottom:8px;font-size:22px}.steps p[data-v-cbca694a]{color:var(--pencil);margin-bottom:10px;font-size:17px}.steps a[data-v-cbca694a]{align-items:center;min-height:44px;font-weight:650;display:inline-flex}@media (prefers-reduced-motion:reduce){.scoresheet li span[data-v-cbca694a]{transition:none}}@media (width<=1000px){.hero[data-v-cbca694a]{grid-template-columns:minmax(0,1fr);grid-template-areas:"title""copy""demo";gap:28px;padding-block:40px 56px}.hero-demo[data-v-cbca694a]{max-width:640px}}@media (width<=680px){.hero h1[data-v-cbca694a]{font-size:clamp(36px,11vw,52px);font-stretch:var(--semi-wide)}.hero-description[data-v-cbca694a]{font-size:17px}.hero-demo[data-v-cbca694a]{grid-template-columns:minmax(0,1fr);gap:20px}.scoresheet ol[data-v-cbca694a]{grid-template-columns:repeat(3,minmax(0,1fr));column-gap:12px;display:grid}.steps[data-v-cbca694a]{grid-template-columns:minmax(0,1fr)}.step-number[data-v-cbca694a]{font-size:48px}}@font-face{font-family:Archivo;font-style:normal;font-display:swap;font-weight:100 900;font-stretch:62% 125%;src:url(/assets/archivo-latin-wdth-normal-DY7AcnAa.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Archivo;font-style:normal;font-display:swap;font-weight:100 900;font-stretch:62% 125%;src:url(/assets/archivo-latin-ext-wdth-normal-7khWdh9v.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}:root{--paper:#f1f3f6;--sheet:#fff;--ink:#182544;--ink-soft:#2c3d66;--pencil:#535f78;--rule:#d3d9e3;--rule-strong:#a3adc0;--marker:#ffde4d;--marker-soft:#fff0a6;--danger:#a12b2b;--radius:6px;--header-height:72px;--wide:125%;--semi-wide:112%;--muted:var(--pencil);--line:var(--rule);--green:var(--ink);color:var(--ink);background:var(--paper);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums;font-family:Archivo,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;font-size:16px;line-height:1.6}*{box-sizing:border-box}body{margin:0}#app{flex-direction:column;min-height:100vh;display:flex}#app>main{flex:1 0 auto}h1,h2,h3,h4{font-stretch:var(--wide);letter-spacing:-.015em;text-wrap:balance;margin:0 0 .5em;font-weight:800;line-height:1.08}h1{letter-spacing:-.025em;font-size:clamp(36px,4.6vw,56px)}h2{font-size:26px}h3{font-size:21px;font-stretch:var(--semi-wide)}h4{letter-spacing:0;font-size:17px;font-weight:700;font-stretch:100%}p{max-width:70ch;margin:0 0 1em}strong{font-weight:700}code{font:inherit;font-weight:600}a{color:inherit;text-underline-offset:4px;text-decoration:underline;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}.eyebrow{color:var(--pencil);margin-bottom:10px;font-size:15px;font-weight:600;display:block}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,summary{touch-action:manipulation}button{cursor:pointer;border:1.5px solid var(--rule-strong);border-radius:var(--radius);background:var(--sheet);min-height:44px;color:var(--ink);padding:0 16px;font-size:15px;font-weight:600;line-height:1.25}button:hover:not(:disabled,[aria-disabled=true]){border-color:var(--ink)}button:disabled,button[aria-disabled=true]{cursor:default;color:#8a93a6;border-color:var(--rule);background:0 0}input:not([type=checkbox],[type=radio]),select{border:1.5px solid var(--rule-strong);border-radius:var(--radius);background:var(--sheet);min-height:48px;color:var(--ink);padding:10px 12px;font-size:16px}input:not([type=checkbox],[type=radio]):hover,select:hover{border-color:var(--ink-soft)}input[type=checkbox],input[type=radio]{accent-color:var(--ink)}summary{cursor:pointer;font-weight:600}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,main[tabindex="-1"]:focus-visible{outline:3px solid var(--ink);outline-offset:3px}main[tabindex="-1"]:focus{outline:none}.primary-link{border:1.5px solid var(--ink);border-radius:var(--radius);background:var(--ink);color:#fff;justify-content:center;align-items:center;gap:12px;min-height:48px;padding:0 22px;font-size:16px;font-weight:650;text-decoration:none;display:inline-flex}a.primary-link:hover,button.primary-link:hover:not(:disabled){background:var(--ink-soft);border-color:var(--ink-soft)}button.primary-link:disabled{color:#fff;background:#c5ccd8;border-color:#c5ccd8}.secondary-button{border:1.5px solid var(--ink);border-radius:var(--radius);background:var(--sheet);justify-content:center;align-items:center;min-height:48px;padding:0 22px;font-weight:650;text-decoration:none;display:inline-flex}.secondary-button:hover{background:var(--paper)}.marker-button{border-color:var(--ink);background:var(--marker);color:var(--ink)}.marker-button:hover:not(:disabled){background:#ffd41f}.text-action{align-items:center;min-height:44px;font-weight:600;display:inline-flex}progress{appearance:none;background:var(--rule);width:100%;height:8px;color:var(--ink);border:0;border-radius:0;display:block}progress[style*=--segments]{--gap:3px;-webkit-mask-image:repeating-linear-gradient(to right, #000 0 calc(100% / var(--segments) - var(--gap)), transparent calc(100% / var(--segments) - var(--gap)) calc(100% / var(--segments)));mask-image:repeating-linear-gradient(to right, #000 0 calc(100% / var(--segments) - var(--gap)), transparent calc(100% / var(--segments) - var(--gap)) calc(100% / var(--segments)))}progress::-webkit-progress-bar{background:var(--rule)}progress::-webkit-progress-value{background:var(--ink)}progress::-moz-progress-bar{background:var(--ink)}.side-token{align-items:center;gap:8px;font-size:15px;font-weight:600;display:inline-flex}.side-token:before{content:"";border:2px solid var(--ink);background:var(--sheet);flex:none;width:14px;height:14px}.side-token.is-black:before{background:var(--ink)}.notice{border-left:3px solid var(--ink);background:var(--sheet);margin-block:16px;padding:12px 16px}.notice>:last-child{margin-bottom:0}.status-actions{flex-wrap:wrap;align-items:center;gap:12px 20px;display:flex}.page-width{width:100%;max-width:1240px;margin-inline:auto;padding-inline:40px}.site-header{height:var(--header-height);border-bottom:1px solid var(--rule);justify-content:space-between;align-items:center;gap:24px;display:flex}.wordmark{font-size:19px;font-weight:800;font-stretch:var(--wide);letter-spacing:-.01em;white-space:nowrap;align-items:center;gap:12px;text-decoration:none;display:inline-flex}.brand-mark{border:2.5px solid var(--ink);background:repeating-linear-gradient(-45deg, var(--ink) 0 1.6px, transparent 1.6px 4.4px);width:26px;height:26px;box-shadow:inset 0 -9px 0 var(--marker);flex:none}.site-header nav{align-items:center;gap:28px;font-size:16px;font-weight:600;display:flex}.site-header nav a{align-items:center;min-height:44px;padding-inline:2px;text-decoration:none;display:inline-flex}.site-header nav a:hover,.site-header nav a[aria-current=page],.site-header nav a.router-link-active{text-decoration-line:underline;-webkit-text-decoration-color:var(--marker-soft);text-decoration-color:var(--marker-soft);text-underline-offset:-.32em;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none;text-decoration-thickness:.5em}.site-header nav a[aria-current=page],.site-header nav a.router-link-active{-webkit-text-decoration-color:var(--marker);text-decoration-color:var(--marker)}.preview-label{border:1.5px solid var(--rule-strong);color:var(--pencil);white-space:nowrap;border-radius:999px;padding:4px 10px;font-size:13px;font-weight:600}.session-status{background:var(--marker-soft);flex-wrap:wrap;align-items:center;gap:8px 16px;max-width:none;margin:0;padding-block:12px;display:flex}.site-footer{border-top:1px solid var(--rule);color:var(--pencil);flex-wrap:wrap;align-items:center;gap:8px 28px;margin-top:40px;padding-block:28px 36px;font-size:14px;display:flex}.site-footer>span{color:var(--ink);margin-right:auto;font-weight:600}.site-footer a{align-items:center;min-height:44px;display:inline-flex}.skip-link{background:var(--marker);color:var(--ink);z-index:100;padding:12px 16px;font-weight:700;position:fixed;top:-100px;left:16px}.skip-link:focus{top:12px}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.empty-page{padding-block:72px}.empty-page p{color:var(--pencil)}.account-page{grid-template-columns:minmax(0,5fr) minmax(0,6fr);align-content:start;gap:32px 72px;padding-block:64px 40px;display:grid}.account-intro h1,.privacy-page h1{font-size:clamp(36px,4.2vw,52px)}.account-intro p,.privacy-page p{color:var(--pencil);font-size:17px}.account-card{border:1px solid var(--rule);border-radius:var(--radius);background:var(--sheet);align-self:start;min-width:0;padding:32px}.account-card h2{font-size:22px;font-stretch:var(--semi-wide)}.account-card p{color:var(--pencil)}.account-card form{gap:20px;display:grid}.account-card label{gap:8px;font-size:15px;font-weight:600;display:grid}.account-card input:not([type=checkbox]){width:100%;min-width:0}.account-card small{color:var(--pencil);font-size:14px;font-weight:400;line-height:1.5}.account-card .primary-link{width:100%}.account-card .secondary-button{width:100%;margin-top:12px}.account-card button.primary-link:disabled{cursor:wait}.account-card .account-error{border-left:3px solid var(--danger);color:var(--danger);background:#fbf1f0;margin:0;padding:10px 14px;font-weight:600}.account-card .account-success{color:var(--ink);font-weight:600}.account-success:empty{display:none}.account-links{border-top:1px solid var(--rule);flex-wrap:wrap;gap:0 20px;margin-top:20px;padding-top:12px;font-size:15px;display:flex}.account-links a{align-items:center;min-height:44px;display:inline-flex}.account-card .account-disclosure{margin:0;font-size:14px}.account-email{overflow-wrap:anywhere;font-weight:600;color:var(--ink)!important}.account-card .remember-option{cursor:pointer;align-items:flex-start;gap:12px;display:flex}.account-card .remember-option input{flex-shrink:0;width:20px;height:20px;margin:1px 0 0}.remember-option small{margin-top:4px;display:block}.password-visibility{justify-self:start}.account-signout{width:100%;margin-top:12px}.developer-link{color:var(--pencil)}.privacy-page{padding-block:64px 40px}.privacy-page>*{max-width:72ch}.privacy-page h2{margin-top:48px;font-size:24px}.privacy-page .primary-link{margin-block:8px 16px}@media (width<=900px){.page-width{padding-inline:24px}.account-page{grid-template-columns:minmax(0,1fr);padding-block:40px 24px}}@media (width<=680px){:root{--header-height:60px}.page-width{padding-inline:18px}.site-header{gap:12px}.wordmark{font-size:16px;font-stretch:var(--semi-wide);gap:9px}.brand-mark{width:22px;height:22px;box-shadow:inset 0 -7px 0 var(--marker)}.site-header nav{gap:14px;font-size:15px}.site-header .preview-label{display:none}.account-card{padding:22px}.site-footer>span{width:100%}}@media (width<=440px){.wordmark{gap:8px;font-size:15px}.site-header nav{gap:12px}}@media (width<=400px){.wordmark-text{display:none}}.site-header{flex-wrap:wrap;gap:18px;height:auto;min-height:112px;padding-block:20px}.site-header nav{flex-wrap:wrap;justify-content:flex-end;gap:10px 20px;position:relative}@media (width<=680px){.site-header{min-height:84px;padding-block:14px}.site-header nav{justify-content:flex-start;gap:8px 14px}}.hero>*{min-width:0}.preview-heading{flex-wrap:wrap;gap:8px}@media (width<=400px){html[lang=fr] .hero h1{font-size:clamp(44px,14vw,61px)}}