:root{--color-ink: #172033;--color-ink-muted: #526178;--color-surface: #ffffff;--color-surface-muted: #f3f6fb;--color-page: #f9fafc;--color-primary: #3158d4;--color-primary-hover: #2445ae;--color-primary-soft: #e9eeff;--color-border: #dbe3f0;--color-error: #ba1a1a;--color-error-soft: #ffdad6;--shadow-sm: 0 1px 2px rgb(23 32 51 / 6%);--shadow-md: 0 12px 28px rgb(23 32 51 / 9%);--radius-sm: .5rem;--radius-md: .875rem;--radius-lg: 1.25rem;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-8: 3rem;--space-10: 4rem;color:var(--color-ink);background:var(--color-page);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}html{min-width:320px}body{min-width:320px;min-height:100vh;margin:0;background:var(--color-page)}button,input,textarea,select{font:inherit}:focus-visible{outline:3px solid var(--color-primary);outline-offset:3px}a{color:var(--color-primary);text-underline-offset:.18em}a:hover{color:var(--color-primary-hover)}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--color-ink);letter-spacing:-.03em}h1{max-width:14ch;margin-bottom:var(--space-5);font-size:clamp(2.5rem,8vw,5rem);line-height:1.04}h2{margin-bottom:var(--space-3);font-size:clamp(1.75rem,5vw,2.5rem);line-height:1.15}h3{margin-bottom:var(--space-2);font-size:1.25rem;line-height:1.3}p{margin-bottom:0;color:var(--color-ink-muted);line-height:1.6}.skip-link{position:fixed;z-index:10;top:var(--space-3);left:var(--space-3);padding:var(--space-2) var(--space-3);color:var(--color-surface);background:var(--color-primary);border-radius:var(--radius-sm);transform:translateY(-200%)}.skip-link:focus{transform:translateY(0)}.container{width:min(100% - 2rem,72rem);margin-inline:auto}.site-header{background:#f9fafcf0;border-bottom:1px solid var(--color-border)}.header-content{display:flex;min-height:4.5rem;align-items:center;justify-content:space-between;gap:var(--space-4)}.brand{color:var(--color-ink);font-size:1.125rem;font-weight:800;letter-spacing:-.04em;text-decoration:none}.brand span{color:var(--color-primary)}.site-nav{display:flex;align-items:center;gap:var(--space-4)}.mobile-menu{position:relative}.mobile-menu summary{padding:var(--space-2) 0;color:var(--color-ink-muted);font-size:.9375rem;font-weight:700;cursor:pointer}.mobile-menu nav{position:absolute;z-index:2;top:calc(100% + var(--space-2));right:0;display:grid;min-width:10rem;padding:var(--space-2);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-md)}.mobile-menu nav a{padding:var(--space-2) var(--space-3);color:var(--color-ink);font-weight:650;text-decoration:none}.site-nav a{padding:var(--space-2) 0;color:var(--color-ink-muted);font-size:.9375rem;font-weight:650;text-decoration:none}.site-nav a:hover{color:var(--color-primary)}.hero{padding:var(--space-10) 0 var(--space-8);background:linear-gradient(135deg,var(--color-surface) 0%,var(--color-primary-soft) 100%)}.hero-content{max-width:48rem}.eyebrow,.card-kicker{margin-bottom:var(--space-2);color:var(--color-primary);font-size:.875rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.hero-description{max-width:38rem;font-size:clamp(1.0625rem,3vw,1.25rem)}.hero-action{margin-top:var(--space-5)}.content-section{padding:var(--space-8) 0}.content-section--muted{background:var(--color-surface-muted)}.section-heading{max-width:42rem;margin-bottom:var(--space-5)}.card-grid{display:grid;gap:var(--space-4)}.card{display:flex;min-height:15rem;flex-direction:column;padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.card--interactive:focus-within{border-color:var(--color-primary);box-shadow:var(--shadow-md)}.card-icon{display:grid;width:2.75rem;height:2.75rem;margin-bottom:var(--space-5);place-items:center;color:var(--color-primary);background:var(--color-primary-soft);border-radius:var(--radius-md);font-size:1.5rem}.card-kicker{margin-bottom:var(--space-1);font-size:.75rem}.status{width:fit-content;margin-top:auto;padding:var(--space-1) var(--space-2);color:var(--color-ink-muted);background:var(--color-surface-muted);border-radius:999px;font-size:.75rem;font-weight:700}.card-footer{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);margin-top:auto}.card-action{padding:var(--space-2) 0;color:var(--color-primary);font-size:.9375rem;font-weight:750;text-decoration:none}.card-action:hover{color:var(--color-primary-hover);text-decoration:underline}.button{display:inline-flex;min-height:2.75rem;align-items:center;justify-content:center;padding:var(--space-2) var(--space-4);color:var(--color-surface);background:var(--color-primary);border:1px solid var(--color-primary);border-radius:var(--radius-sm);font:inherit;font-weight:700;text-decoration:none;cursor:pointer}.button:hover{color:var(--color-surface);background:var(--color-primary-hover);border-color:var(--color-primary-hover)}.button--secondary{color:var(--color-primary);background:var(--color-surface)}.button--secondary:hover{color:var(--color-primary-hover);background:var(--color-primary-soft);border-color:var(--color-primary)}.button:disabled,.button[aria-disabled=true]{opacity:.5;cursor:not-allowed}.message--error{padding:var(--space-3) var(--space-4);color:var(--color-error);background:var(--color-error-soft);border:1px solid currentcolor;border-radius:var(--radius-sm)}.site-footer{padding:var(--space-5) 0;background:var(--color-surface);border-top:1px solid var(--color-border)}.proposal{padding:var(--space-8) 0;background:var(--color-primary-soft)}.proposal-content{max-width:44rem}.proposal h2{max-width:18ch}.footer-content{display:grid;gap:var(--space-4)}.site-footer nav{display:flex;flex-wrap:wrap;gap:var(--space-3) var(--space-4)}.site-footer nav a{color:var(--color-ink-muted);font-size:.875rem}.site-footer p{font-size:.875rem}.game-page{padding:var(--space-6) 0 var(--space-8)}.game-page__content{max-width:40rem}.back-link{display:inline-block;margin-bottom:var(--space-6);font-weight:700}.game-page__intro{max-width:38rem;margin-bottom:var(--space-6);font-size:1.125rem}.game-2048{padding:var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.game-2048__topbar,.game-2048__controls{display:flex;flex-wrap:wrap;gap:var(--space-3);justify-content:space-between}.game-2048__controls{margin:var(--space-4) 0;justify-content:flex-start}.score-box{display:grid;min-width:7rem;padding:var(--space-3);color:var(--color-surface);background:var(--color-ink);border-radius:var(--radius-sm)}.score-box span{font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.score-box strong{font-size:1.25rem}.game-2048__message,.game-2048__loading{min-height:1.6rem;margin-bottom:var(--space-3);color:var(--color-ink);font-weight:650}.game-2048__board{display:grid;aspect-ratio:1;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--space-2);padding:var(--space-2);touch-action:none;background:#bbc5d6;border-radius:var(--radius-md)}.game-2048__cell{display:grid;min-width:0;place-items:center;color:var(--color-ink);background:#ffffff7a;border-radius:var(--radius-sm);font-size:clamp(1.25rem,8vw,2.5rem);font-weight:800;transition:background-color .12s ease,transform .12s ease}.game-2048__tile{background:#f9d96a;animation:tile-appear .14s ease-out}.game-2048__tile--4{background:#f4bd60}.game-2048__tile--8,.game-2048__tile--16{color:var(--color-surface);background:#ee8d58}.game-2048__tile--32,.game-2048__tile--64{color:var(--color-surface);background:#df5c53}.game-2048__tile--128,.game-2048__tile--256,.game-2048__tile--512,.game-2048__tile--1024,.game-2048__tile--2048{color:var(--color-surface);background:var(--color-primary)}.game-instructions{margin-top:var(--space-8);padding-top:var(--space-6);border-top:1px solid var(--color-border)}.game-instructions h2{font-size:1.5rem}@keyframes tile-appear{0%{opacity:.65;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@media(min-width:48rem){.container{width:min(100% - 4rem,72rem)}.hero{padding:6rem 0 5rem}.content-section{padding:5rem 0}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-5)}.mobile-menu{display:none}.footer-content{display:flex;align-items:center;justify-content:space-between}.game-page{padding:var(--space-10) 0}.game-2048{padding:var(--space-5)}}@media(min-width:64rem){.site-nav{gap:var(--space-5)}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:47.99rem){.site-nav{display:none}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}html{scroll-behavior:smooth}.home-container{width:min(100% - 2rem,82rem);margin-inline:auto}#jogos,#ferramentas{scroll-margin-top:5rem}.home-header{background:#ffffffe0;border-bottom-color:#2147881a;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.home-header .site-nav{display:flex;gap:clamp(.75rem,2vw,1.5rem)}.home-header .site-nav a{font-size:.9rem}.home-brand{gap:0;letter-spacing:-.055em}.home-brand>span{color:#183d84}.home-brand strong{color:#3f78e3;font:inherit;font-weight:800}.home-hero{position:relative;overflow:clip;padding:clamp(3rem,6vw,5.25rem) 0 clamp(3.25rem,6vw,5.5rem);background:radial-gradient(circle at 82% 38%,rgb(109 157 255 / 20%),transparent 27rem),linear-gradient(135deg,#f8fbff,#eff5ff 52%,#f8faff)}.home-hero:after{position:absolute;right:-8rem;bottom:-10rem;width:23rem;aspect-ratio:1;border:1px solid rgb(63 120 227 / 16%);border-radius:50%;content:""}.home-hero__grid{display:grid;position:relative;z-index:1;gap:clamp(2.5rem,6vw,6rem);align-items:center}.home-hero__content{max-width:39rem}.home-hero h1{max-width:18ch;margin:var(--space-3) 0 var(--space-4);color:#142951;font-size:clamp(2.3rem,4.6vw,4.35rem);line-height:1.03;letter-spacing:-.055em}.home-hero__content>p:not(.eyebrow){max-width:36rem;margin:0;color:#466080;font-size:clamp(1rem,1.3vw,1.125rem);line-height:1.65}.home-hero__action{margin-top:var(--space-6)}.hero-art{position:relative;min-height:18rem;width:min(100%,31rem);margin-inline:auto}.hero-art__sudoku{display:grid;position:absolute;top:.5rem;left:.5rem;width:12.5rem;grid-template-columns:repeat(9,1fr);overflow:hidden;border:.35rem solid #fff;border-radius:1rem;background:#e8f0ff;box-shadow:0 1.5rem 3rem #1f488e2e;transform:rotate(-7deg)}.hero-art__sudoku span{display:grid;aspect-ratio:1;place-items:center;border:1px solid rgb(45 91 171 / 15%);color:#214eaa;font-size:.66rem;font-weight:800}.hero-art__tiles{display:grid;position:absolute;z-index:2;top:2.8rem;right:1.2rem;grid-template-columns:repeat(2,4.3rem);gap:.55rem;padding:.65rem;border:.45rem solid #fff;border-radius:1.25rem;background:#b7c7df;box-shadow:0 1.5rem 3rem #1f488e3b;transform:rotate(7deg)}.tile{display:grid;aspect-ratio:1;place-items:center;border-radius:.7rem;color:#23436f;background:#f7d86b;font-size:1.2rem;font-weight:800}.tile--4{background:#f2ba67}.tile--8{color:#fff;background:#e88158}.tile--16{color:#fff;background:#d95758}.hero-art__cards{display:flex;position:absolute;z-index:3;right:3.1rem;bottom:.3rem;align-items:flex-end;height:9.7rem}.hero-art__cards>span{display:grid;width:4.5rem;height:6.6rem;margin-left:-1.8rem;padding:.45rem;align-content:space-between;border:.3rem solid #fff;border-radius:.75rem;color:#172b4d;background:linear-gradient(145deg,#fff,#edf4ff);box-shadow:0 .9rem 1.8rem #1f488e30;font-weight:800}.hero-art__cards>span:nth-child(1){transform:translateY(1.8rem) rotate(-9deg)}.hero-art__cards>span:nth-child(2){color:#c33e58;transform:translateY(.7rem) rotate(-2deg)}.hero-art__cards>span:nth-child(3){transform:rotate(7deg)}.hero-art__cards span span{font-size:1.25rem}.hero-art__tic{display:grid;position:absolute;right:0;bottom:5rem;grid-template-columns:repeat(3,1.45rem);opacity:.8;transform:rotate(-4deg)}.hero-art__tic span{display:grid;aspect-ratio:1;place-items:center;border:1px solid #85a4dc;color:#3b6ac2;font-size:1.05rem;font-weight:800}.home-section{padding:clamp(3.75rem,7vw,6.25rem) 0}.home-section__heading{max-width:41rem;margin-bottom:clamp(1.75rem,4vw,2.75rem)}.home-section__heading h2{margin:var(--space-2) 0;color:#142951;font-size:clamp(2rem,3.2vw,3rem);letter-spacing:-.045em}.home-section__heading>p:last-child{margin:0;color:#526b8d;line-height:1.6}.game-showcase-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:1.15rem}.game-card{display:flex;min-width:0;flex-direction:column;overflow:hidden;border:1px solid #d9e4f4;border-radius:1.15rem;color:inherit;background:#fff;box-shadow:0 .5rem 1.5rem #1c42800f;text-decoration:none;transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease}.game-card:hover{border-color:#8aade9;box-shadow:0 1rem 2rem #1c428024;transform:translateY(-.2rem)}.game-card:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}.game-preview{display:grid;min-height:10.5rem;place-content:center;overflow:hidden;border-bottom:1px solid #e0e9f6}.game-card__body{display:flex;min-height:12.6rem;padding:1.25rem;flex:1;flex-direction:column}.game-card__meta,.game-status,.tool-card-grid span{margin:0;color:#5071a5;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.game-card h3{margin:.45rem 0;color:#172e58;font-size:1.25rem}.game-card__body>p:not(.game-card__meta){margin:0;color:#60748f;line-height:1.5}.game-card__footer{display:flex;margin-top:auto;padding-top:1.1rem;align-items:center;justify-content:space-between;color:#2257b6;font-weight:750}.game-status{color:#287649}.preview-sudoku{width:8.4rem;height:8.4rem;margin:auto;grid-template-columns:repeat(9,1fr);border:.25rem solid #355fae;border-radius:.45rem;background:#f8fbff;box-shadow:0 .8rem 1.5rem #2656aa29}.preview-sudoku span{display:grid;place-items:center;border:1px solid #ceddf5;color:#2451a5;font-size:.64rem;font-weight:800}.preview-2048{grid-template-columns:repeat(4,2.25rem);gap:.38rem;padding:.55rem;border-radius:.85rem;background:#b6c3d7;box-shadow:0 .8rem 1.5rem #28467129}.preview-2048 span{display:grid;aspect-ratio:1;place-items:center;border-radius:.45rem;color:#fff;background:#dce4ee;font-size:.78rem;font-weight:800}.preview-2048 span:nth-child(1),.preview-2048 span:nth-child(9){color:#4f5d75;background:#f6d96f}.preview-2048 span:nth-child(2){color:#4f5d75;background:#efbe6b}.preview-2048 span:nth-child(3),.preview-2048 span:nth-child(8){background:#e58b5a}.preview-2048 span:nth-child(4),.preview-2048 span:nth-child(7),.preview-2048 span:nth-child(11){background:#ce5b5b}.preview-2048 span:nth-child(6){background:#5679cf}.preview-shikaku{grid-template-columns:repeat(4,2.15rem);grid-template-rows:repeat(4,2.15rem);overflow:hidden;border:.25rem solid #4c5f88;border-radius:.45rem;background:#fffdf7}.preview-shikaku span{display:grid;place-items:center;border:1px solid #7890bc;color:#2e5192;font-size:.75rem;font-weight:800}.preview-shikaku span:nth-child(1){grid-area:1 / 1 / span 2 / span 3;background:#edf4ff}.preview-shikaku span:nth-child(6){grid-area:2 / 4 / span 2 / span 1;background:#fff0cb}.preview-shikaku span:nth-child(8){grid-area:3 / 2 / span 2 / span 2;background:#e7f5e9}.preview-shikaku span:nth-child(13){grid-area:4 / 1 / span 1 / span 1;background:#f6e5ec}.preview-shikaku span:nth-child(16){grid-area:4 / 4 / span 1 / span 1;background:#ece7fb}.preview-mines{grid-template-columns:repeat(4,2.1rem);gap:.18rem;padding:.6rem;border-radius:.75rem;background:#aebbd0}.preview-mines span{display:grid;aspect-ratio:1;place-items:center;border:1px solid #f7fbff;color:#2858a7;background:#eaf0f8;font-size:.78rem;font-weight:800}.preview-mines span:empty{background:linear-gradient(135deg,#d7e1ee,#bbc9da)}.preview-mines .mine-flag:before{width:.55rem;height:.7rem;border-left:2px solid #364f7b;border-top:.35rem solid #d95457;content:""}.preview-tic{width:8rem;grid-template-columns:repeat(3,1fr);border:2px solid #4b73bf;border-radius:.55rem;overflow:hidden;background:#f8fbff}.preview-tic span{display:grid;aspect-ratio:1;place-items:center;border:1px solid #82a1d4;color:#2d5eb8;font-size:1.55rem;font-weight:750}.preview-tic span:nth-child(2),.preview-tic span:nth-child(7){color:#d55868}.preview-spider{display:flex;position:relative;width:11rem;height:9rem;align-items:flex-start}.preview-spider span{display:grid;width:4rem;height:5.8rem;margin-left:-1.45rem;padding:.4rem;align-content:space-between;border:.22rem solid #fff;border-radius:.6rem;color:#20345e;background:#fdfefe;box-shadow:0 .65rem 1.1rem #20365e2b;font-size:1rem;font-weight:800}.preview-spider span:first-child{margin-left:0;transform:translateY(1.8rem) rotate(-8deg)}.preview-spider span:nth-child(2){color:#c74359;transform:translateY(.85rem) rotate(-3deg)}.preview-spider span:nth-child(3){transform:translateY(.35rem) rotate(3deg)}.preview-spider span:nth-child(4){color:#c74359;transform:rotate(8deg)}.preview-spider small{font-size:1.1rem}.home-tools{background:linear-gradient(180deg,#f5f8fd,#edf3fc)}.tool-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem}.tool-card-grid article{min-width:0;padding:1.15rem;border:1px solid #dce6f4;border-radius:.8rem;background:#ffffffbd}.tool-card-grid h3{margin:0;color:#29436f;font-size:1rem}.tool-card-grid p{margin:.45rem 0 .8rem;color:#657891;font-size:.9rem;line-height:1.45}.tool-card-grid span{color:#73849b;font-size:.63rem}.home-footer{background:#132b57}.home-footer .home-brand>span{color:#fff}.home-footer .home-brand strong{color:#9cbbff}.breadcrumb{display:flex;gap:.5rem;margin-bottom:var(--space-5);color:var(--color-muted);font-size:.9rem}.breadcrumb a{color:var(--color-primary)}.game-guide,.related-games{max-width:46rem;margin-top:var(--space-9)}.game-guide{display:grid;gap:var(--space-6);padding-top:var(--space-7);border-top:1px solid var(--color-border)}.game-guide h2,.related-games h2{margin:0 0 var(--space-2);color:var(--color-ink);font-size:1.35rem}.game-guide p{margin:var(--space-2) 0 0;color:var(--color-muted);line-height:1.65}.related-games ul{display:grid;grid-template-columns:repeat(auto-fit,minmax(10rem,1fr));gap:var(--space-3);padding:0;list-style:none}.related-games a{display:flex;padding:var(--space-4);align-items:center;justify-content:space-between;border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-primary);background:var(--color-surface);font-weight:700;text-decoration:none}.related-games a:hover{border-color:var(--color-primary)}@media(min-width:48rem){.home-container{width:min(100% - 4rem,82rem)}.home-hero__grid{grid-template-columns:minmax(0,1fr) minmax(20rem,.9fr)}.game-showcase-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.35rem}.tool-card-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(min-width:68rem){.game-showcase-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:23rem){.home-header .header-content,.home-header .site-nav{gap:.6rem}.home-header .site-nav a{font-size:.82rem}.hero-art{transform:scale(.9);transform-origin:center}}