@import "https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible+Next:wght@400;500;600;700&family=Science+Gothic:slnt,wdth,wght@-10..0,75..125,200..900&display=swap";:root{--color-ink:lab(93.203% -3.8411 1.52746);--color-copy:lab(79.3642% -5.77092 2.29373);--color-muted:lab(59.6979% -7.06846 2.80761);--color-ground:lab(4.54786% -2.54522 1.00929);--color-surface:lab(8.54858% -4.48085 1.77701);--color-surface-raised:lab(12.0555% -5.17223 2.05062);--color-rule:lab(26.0031% -5.80043 2.30188);--color-aqua:lab(76.831% -34.2317 -4.19397);--color-violet:lab(68.5864% 18.5027 -32.207);--color-lime:lab(81.56% -23.2466 43.8334);--color-coral:lab(66.1388% 45.9222 30.8831);--color-amber:lab(79.2279% 11.9334 56.1184);--font-display:"Science Gothic", "Arial Narrow", sans-serif;--font-body:"Atkinson Hyperlegible Next", "Trebuchet MS", 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2rem)}.hero-orbit{border:1px solid lab(76.831% -34.2317 -4.19397/.52);border-radius:50%;width:78%;height:28%;position:absolute}.orbit-horizontal{rotate:16deg}.orbit-diagonal{rotate:-42deg}.hero-nucleus{z-index:1;aspect-ratio:1;background:var(--color-aqua);width:6.8rem;color:var(--color-ground);font-family:var(--font-display);border-radius:50%;place-items:center;font-size:1.6rem;font-weight:650;font-stretch:85%;display:grid}.hero-dot{aspect-ratio:1;background:var(--color-aqua);border-radius:50%;width:.55rem;position:absolute}.dot-one{top:13%;left:29%}.dot-two{width:.35rem;bottom:33%;right:13%}.dot-three{width:.25rem;bottom:15%;left:24%}.hero-caption{right:var(--space-md);color:var(--color-muted);font-family:var(--font-display);letter-spacing:.1em;text-transform:uppercase;font-size:.64rem;font-stretch:85%;position:absolute;bottom:-2.2rem}.progress-panel{gap:var(--space-lg);padding-block:var(--space-xl);border-block:1px solid 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var(--color-rule);color:var(--color-muted);font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;grid-template-columns:1fr auto;align-items:center;font-size:.65rem;font-weight:520;font-stretch:84%;line-height:1.45;display:grid}footer p{display:none}@media (hover:hover) and (pointer:fine){.primary-action:hover{background:lab(84.7729% -28.9734 -3.58394);translate:0 -.2rem}.fact-card:hover{border-color:color-mix(in oklch, var(--accent) 55%, var(--color-rule));translate:0 -.18rem}}@media (min-width:52rem){main{width:min(100% - var(--space-3xl), 74rem)}.site-header{grid-template-columns:1fr auto 1fr}.site-header p{display:block}.hero{gap:clamp(var(--space-2xl), 6vw, var(--space-4xl));min-height:43rem;padding-block:var(--space-3xl);grid-template-columns:1.2fr .8fr}.hero-specimen{width:min(32vw,24rem)}.progress-panel{align-items:center;gap:var(--space-xl);grid-template-columns:11rem 1fr 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var(--color-ground));color:var(--color-ink)}.property-list{border-top:1px solid var(--color-rule);display:grid}.property-list div{gap:var(--space-md);padding-block:var(--space-sm);border-bottom:1px solid var(--color-rule);grid-template-columns:6rem 1fr;display:grid}.property-list dt{color:var(--color-muted);text-transform:uppercase;font-size:.75rem}.property-list dd{color:var(--color-copy);line-height:1.45}.carbon-model{align-content:center;gap:var(--space-lg) var(--space-xl);width:min(15rem,88%);min-height:13rem;transition:rotate .42s var(--ease-out), scale .42s var(--ease-out);grid-template-columns:repeat(4,1fr);display:grid}.carbon-atom{z-index:1;aspect-ratio:1;border:1px solid var(--accent);background:var(--color-ground);border-radius:50%;justify-self:center;width:1.15rem;position:relative}.carbon-atom:before,.carbon-atom:after{content:"";width:calc(var(--space-xl) + .25rem);background:color-mix(in oklch, var(--accent) 55%, var(--color-rule));transform-origin:0;height:1px;position:absolute;top:50%;left:100%}.carbon-atom:after{rotate:58deg}.carbon-model[data-structure=nenhuma] .carbon-atom{opacity:.22}.carbon-model[data-structure=grafite] .carbon-atom:nth-child(odd){translate:.7rem}.carbon-model[data-structure=diamante]{grid-template-columns:repeat(3,1fr);rotate:45deg;scale:.82}.carbon-model[data-structure=diamante] .carbon-atom{rotate:-45deg}.element-bank{gap:var(--space-xs);margin-bottom:var(--space-lg);grid-template-columns:repeat(auto-fit,minmax(5.5rem,1fr));display:grid}.element-chip{justify-items:start;gap:var(--space-2xs);padding:var(--space-sm);text-align:left;display:grid}.element-chip strong,.sample-button strong{color:var(--accent);font-family:var(--font-display);font-size:1.25rem;font-stretch:85%}.element-chip span,.sample-button span{color:var(--color-muted);font-size:.78rem}.body-targets{gap:var(--space-xs);display:grid}.body-target{align-items:center;gap:var(--space-md);padding:var(--space-xs) var(--space-md) var(--space-xs) var(--space-xs);text-align:left;grid-template-columns:2.75rem 1fr;display:grid}.body-target[data-filled=true]{border-color:var(--color-lime);background:color-mix(in oklch, var(--color-lime) 10%, var(--color-ground));opacity:1}.target-slot{aspect-ratio:1;border:1px dashed var(--color-rule);width:2.5rem;color:var(--accent);font-family:var(--font-display);place-items:center;font-weight:650;display:grid}.sample-button{justify-items:start;gap:var(--space-2xs);padding:var(--space-sm);text-align:left;display:grid}.sample-button[data-observed=true]:after{content:"observado";color:var(--color-lime);font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;font-size:.55rem}.flame-stage{align-content:center;gap:var(--space-lg)}.burner{place-items:end center;width:7rem;height:10rem;display:grid;position:relative}.flame{background:var(--flame-color);opacity:.32;width:4.6rem;height:6.6rem;transition:background-color .22s, opacity .22s, scale .36s var(--ease-out);border-radius:72% 28% 62% 38%;position:absolute;bottom:2rem;rotate:45deg;scale:.58}.burner[data-active=true] .flame{opacity:.9;scale:1}.flame-inner{background:color-mix(in oklch, var(--flame-color) 45%, var(--color-ink));opacity:.68;width:2.2rem;height:3.6rem;bottom:1.9rem}.burner-head{border:1px solid var(--color-rule);background:var(--color-surface-raised);width:4rem;height:2.3rem;position:absolute;bottom:0}.flame-readout{justify-items:center;gap:var(--space-2xs);text-align:center;display:grid}.flame-readout strong{color:var(--color-ink);font-size:1.05rem}.flame-readout span{color:var(--color-muted);font-size:.8rem}.heat-button{padding-inline:var(--space-md);border-color:color-mix(in oklch, var(--accent) 55%, var(--color-rule));color:var(--color-ink);justify-content:space-between;align-items:center;font-weight:650;display:flex}.gallium-vessel{border:1px solid var(--color-rule);border-top:0;width:min(13rem,75%);height:14rem;position:relative}.gallium-sample{border:1px solid var(--accent);background:color-mix(in oklch, var(--accent) 32%, var(--color-ground));clip-path:polygon(10% 12%,82% 0,100% 68%,78% 100%,4% 86%);width:6.5rem;height:5rem;transition:border-radius .42s var(--ease-out), clip-path .42s var(--ease-out), width .42s var(--ease-out), height .42s var(--ease-out);position:absolute;bottom:1.5rem;left:50%;translate:-50%}.gallium-vessel[data-phase=em\ transição] .gallium-sample{clip-path:polygon(5% 30%,72% 4%,100% 62%,78% 100%,0 86%);width:7rem;height:4rem}.gallium-vessel[data-phase=líquido] .gallium-sample{clip-path:none;border-radius:52% 48% 44% 56%;width:7.5rem;height:3rem}.temperature-column{border:1px solid var(--color-rule);width:.55rem;height:100%;position:absolute;top:0;right:-1.8rem}.temperature-column:after{content:"";height:var(--heat-level);background:var(--accent);transition:height .26s var(--ease-out);position:absolute;inset:auto 0 0}.melting-mark{color:var(--color-muted);font-family:var(--font-display);letter-spacing:.06em;font-size:.6rem;position:absolute;bottom:48%;right:-4.6rem}.melting-mark:before{content:"";top:50%;right:calc(100% + var(--space-xs));background:var(--color-rule);width:1.2rem;height:1px;position:absolute}@container (width>=34rem){.lab-grid{grid-template-columns:minmax(0,1.05fr) minmax(15rem,.95fr);align-items:stretch}.body-targets{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (prefers-reduced-motion:reduce){.water-ice,.water-liquid,.water-vapor,.carbon-model,.flame,.gallium-sample,.temperature-column:after{transition-property:opacity,background-color!important}}