:root{--green: #22c55e;--green-dark: #16a34a;--blue: #2563eb;--blue-dark: #1d4ed8;--yellow: #facc15;--yellow-dark: #eab308;--white: #ffffff;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-800: #1f2937;--gray-900: #111827;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius: 12px;--radius-lg: 16px}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Poppins,sans-serif;font-size:16px;line-height:1.6;color:var(--gray-800);background:var(--gray-50)}.container{width:100%;max-width:1100px;margin:0 auto;padding:0 1.25rem}.header{background:var(--white);box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.header-inner{display:flex;align-items:center;justify-content:space-between;padding:.75rem 0;gap:1rem}.logo{display:block;line-height:0}.header-favicon{height:40px;width:auto;display:block}.nav{display:flex;gap:1.25rem}.nav a{color:var(--gray-800);text-decoration:none;font-weight:600;font-size:.95rem;padding:.35rem 0}.nav a:hover{color:var(--green)}.hero{background:linear-gradient(135deg,var(--green) 0%,var(--blue) 100%);color:var(--white);padding:3rem 0 4rem;text-align:center}.hero-inner{display:flex;flex-direction:column;align-items:center;gap:1rem}.hero-logo{width:100px;max-height:100px;height:auto;display:block}.hero-headline{margin:0;font-size:clamp(1.75rem,5vw,2.5rem);font-weight:700;line-height:1.2;max-width:20ch}.hero-subheadline{margin:0;font-size:clamp(1rem,2.5vw,1.2rem);opacity:.95;max-width:42ch}.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin-top:.5rem}.btn{display:inline-block;padding:.85rem 1.75rem;font-family:inherit;font-size:1rem;font-weight:600;text-decoration:none;border-radius:var(--radius);border:none;cursor:pointer;transition:transform .15s,box-shadow .15s}.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-primary{background:var(--yellow);color:var(--gray-900)}.btn-primary:hover{background:var(--yellow-dark)}.btn-secondary{background:var(--white);color:var(--blue);border:2px solid var(--white)}.btn-secondary:hover{background:transparent;color:var(--white)}.hero .btn-secondary,.hero-btn-jogar{background:#d1d5db!important;border-color:#d1d5db!important;color:var(--blue)}.hero .btn-secondary:hover,.hero-btn-jogar:hover{background:transparent!important;color:var(--white);border-color:var(--white)}.section{padding:3rem 0}.section-title{margin:0 0 .5rem;font-size:clamp(1.5rem,4vw,2rem);font-weight:700;color:var(--gray-900);text-align:center}.section-subtitle{margin:0 0 2rem;text-align:center;color:var(--gray-800);font-size:1.05rem}.section-cta{text-align:center;margin-top:2rem}.section-cta .btn-primary{background:var(--yellow);color:var(--gray-900)}.section-cta .btn-primary:hover{background:var(--yellow-dark)}.section-games{background:var(--white)}.game-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem;margin-top:1.5rem}.game-card{background:var(--gray-50);border-radius:var(--radius-lg);padding:1.5rem;text-align:center;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.game-card-icon{font-size:2.5rem;margin-bottom:.5rem}.game-card h3{margin:0 0 .75rem;font-size:1.15rem;color:var(--gray-900)}.game-card-link{display:inline-block;padding:.5rem 1.25rem;background:var(--green);color:var(--white);text-decoration:none;font-weight:600;font-size:.9rem;border-radius:8px;transition:background .2s}.game-card-link:hover{background:var(--green-dark)}.section-categories{background:var(--gray-50)}.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:1.5rem}.category-card{display:flex;align-items:center;gap:1rem;padding:1.25rem;background:var(--white);border-radius:var(--radius);text-decoration:none;color:var(--gray-800);font-weight:600;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,color .2s}.category-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);color:var(--blue)}.category-icon{font-size:2rem}.category-name{font-size:.95rem}.section-how{background:var(--white)}.steps{display:flex;flex-direction:column;gap:2rem;margin-top:2rem;max-width:400px;margin-left:auto;margin-right:auto}.step{text-align:center;padding:1.5rem;background:var(--gray-50);border-radius:var(--radius-lg)}.step-num{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;background:var(--blue);color:var(--white);font-weight:700;font-size:1.25rem;border-radius:50%;margin-bottom:.75rem}.step h3{margin:0 0 .5rem;font-size:1.15rem;color:var(--gray-900)}.step p{margin:0;font-size:.95rem;color:var(--gray-800)}.section-cta-final{background:linear-gradient(135deg,var(--blue) 0%,var(--green) 100%);color:var(--white);text-align:center}.section-cta-final .section-title{color:var(--white);margin-bottom:1.5rem}.cta-buttons{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}.section-cta-final .btn-primary{background:var(--yellow);color:var(--gray-900)}.section-cta-final .btn-secondary{background:transparent;color:var(--white);border:2px solid var(--white)}.section-cta-final .btn-secondary:hover{background:var(--white);color:var(--blue)}.footer{background:var(--gray-900);color:var(--gray-100);padding:2.5rem 0;text-align:center}.footer-tagline{margin:0 0 1rem;font-size:1.05rem;font-weight:600}.footer-links{display:flex;justify-content:center;gap:1.5rem;margin-bottom:1rem}.footer-links a{color:var(--gray-100);text-decoration:none;font-size:.9rem}.footer-links a:hover{color:var(--green)}.footer-copy{margin:0;font-size:.85rem;opacity:.8}.footer-copy .footer-synapto{color:var(--gray-100);text-decoration:underline;text-underline-offset:2px}.footer-copy .footer-synapto:hover{color:var(--green)}@media (min-width: 640px){.game-grid{grid-template-columns:repeat(4,1fr);gap:1.5rem}.category-grid{grid-template-columns:repeat(3,1fr);gap:1.25rem}.steps{flex-direction:row;max-width:none;gap:1.5rem}.step{flex:1}}@media (min-width: 768px){.hero{padding:4rem 0 5rem}.category-grid{grid-template-columns:repeat(5,1fr)}}@media (min-width: 1024px){.container{padding:0 2rem}.header-favicon{height:70px}.hero-logo{width:250px;max-height:250px}}.page-games-list .games-main{padding:2rem 0 4rem;min-height:60vh}.games-title{margin:0 0 .5rem;font-size:clamp(1.5rem,4vw,2rem);font-weight:700;color:var(--gray-900, #111827);text-align:center}.games-subtitle{margin:0 0 2rem;text-align:center;color:var(--gray-800, #1f2937);font-size:1.05rem}.games-grid{display:grid;grid-template-columns:1fr;gap:1.25rem;max-width:400px;margin:0 auto}.game-card-link-page{text-decoration:none;color:inherit;display:block}.game-card-link-page.game-card-coming{opacity:.85;pointer-events:none;cursor:default}.game-card-large{padding:1.75rem;text-align:center}.game-card-large h2{margin:0 0 .5rem;font-size:1.25rem}.game-card-large p{margin:0 0 1rem;font-size:.9rem;color:var(--gray-800, #1f2937)}.game-card-cta{display:inline-block;padding:.5rem 1.25rem;background:var(--green, #22c55e);color:#fff;font-weight:600;font-size:.9rem;border-radius:8px}.game-card-coming .game-card-cta{background:var(--gray-100, #f3f4f6);color:var(--gray-600, #4b5563)}@media (min-width: 640px){.games-grid{grid-template-columns:repeat(2,1fr);max-width:700px}}@media (min-width: 768px){.games-grid{grid-template-columns:repeat(2,1fr);max-width:800px;gap:1.5rem}}.page-game{min-height:100vh;display:flex;flex-direction:column;background:var(--gray-50, #f9fafb)}.game-header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;background:#fff;box-shadow:0 1px 3px #0000001a;flex-shrink:0}.game-header-back{display:inline-flex;align-items:center;gap:.35rem;padding:.5rem .75rem;background:var(--gray-100, #f3f4f6);color:var(--gray-800, #1f2937);text-decoration:none;font-weight:600;font-size:.9rem;border-radius:8px}.game-header-back:hover{background:var(--gray-200, #e5e7eb)}.game-header-title{margin:0;font-size:1.1rem;font-weight:700;color:var(--gray-900, #111827)}.game-header-actions{display:flex;align-items:center;gap:.5rem}.game-btn{padding:.5rem 1rem;font-family:inherit;font-size:.9rem;font-weight:600;border-radius:8px;border:none;cursor:pointer;background:var(--green, #22c55e);color:#fff}.game-btn:hover{filter:brightness(1.05)}.game-btn-secondary{background:var(--gray-200, #e5e7eb);color:var(--gray-800, #1f2937)}.game-btn-secondary:hover{background:var(--gray-300, #d1d5db)}.game-container{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.5rem}.game-turn{margin-bottom:1rem;font-size:1.1rem;font-weight:600;color:var(--gray-800, #1f2937)}.game-turn .turn-x{color:var(--blue, #2563eb)}.game-turn .turn-o{color:var(--green, #22c55e)}.velha-board{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:4px;width:min(280px,85vw);aspect-ratio:1;background:var(--gray-800, #1f2937);padding:4px;border-radius:12px;box-shadow:0 4px 14px #00000026}.velha-cell{display:flex;align-items:center;justify-content:center;background:#fff;border:none;border-radius:8px;font-size:2.5rem;font-weight:700;cursor:pointer;transition:transform .1s,background .15s}.velha-cell:hover:not(.velha-cell-filled){background:var(--gray-50, #f9fafb);transform:scale(1.02)}.velha-cell-filled{cursor:default}.velha-cell-x{color:var(--blue, #2563eb)}.velha-cell-o{color:var(--green, #22c55e)}.velha-cell.winner{background:var(--yellow, #facc15);color:var(--gray-900, #111827)}.game-result{margin-top:1.25rem;padding:1rem 1.5rem;font-size:1.15rem;font-weight:700;text-align:center;border-radius:10px;display:none}.game-result.visible{display:block}.game-result.win-x{background:#2563eb33;color:var(--blue)}.game-result.win-o{background:#22c55e33;color:var(--green)}.game-result.draw{background:var(--gray-200, #e5e7eb);color:var(--gray-700, #374151)}.game-mode-toggle{display:flex;gap:.5rem;margin-bottom:1rem;justify-content:center}.game-mode-toggle button{padding:.4rem .9rem;font-size:.85rem;font-weight:600;border-radius:8px;border:2px solid var(--gray-200, #e5e7eb);background:#fff;color:var(--gray-700, #374151);cursor:pointer}.game-mode-toggle button.active{border-color:var(--green, #22c55e);background:var(--green, #22c55e);color:#fff}.game-mode-toggle button:not(.active):hover{border-color:var(--gray-300, #d1d5db);background:var(--gray-50, #f9fafb)}.velha-diff-wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.5rem;margin-bottom:1rem}.velha-diff-label{font-size:.9rem;color:var(--gray-700, #374151);margin-right:.25rem}.velha-diff-btn{padding:.35rem .75rem;font-size:.8rem;font-weight:600;border-radius:8px;border:2px solid var(--gray-200, #e5e7eb);background:#fff;color:var(--gray-700, #374151);cursor:pointer}.velha-diff-btn.active{border-color:var(--blue, #2563eb);background:var(--blue, #2563eb);color:#fff}.velha-diff-btn:not(.active):hover{border-color:var(--gray-300, #d1d5db);background:var(--gray-50, #f9fafb)}.velha-diff-hint{font-size:.8rem;color:var(--gray-600, #4b5563);font-style:italic;margin-left:.25rem}.velha-cell.velha-last-ia{animation:velha-pulse .6s ease-out}.velha-cell.velha-cell-drop{background:#22c55e59}.velha-cell.velha-cell-drop:hover{background:#22c55e8c}.velha-drag-hint{font-size:.85rem;color:var(--gray-600, #4b5563);margin:-.5rem 0 .75rem;text-align:center}.velha-drag-token{display:flex;align-items:center;justify-content:center;width:56px;height:56px;margin:0 auto 1rem;font-size:2rem;font-weight:700;border-radius:12px;cursor:grab;-webkit-user-select:none;user-select:none;touch-action:none;box-shadow:0 2px 8px #00000026;transition:transform .1s}.velha-drag-token:active{cursor:grabbing}.velha-token-x{background:var(--blue, #2563eb);color:#fff}.velha-token-o{background:var(--green, #22c55e);color:#fff}.velha-ghost{pointer-events:none}@keyframes velha-pulse{0%{transform:scale(1.1);box-shadow:0 0 #22c55e66}to{transform:scale(1);box-shadow:none}}.damas-board{display:grid;grid-template-columns:repeat(8,1fr);touch-action:none;-webkit-user-select:none;user-select:none;grid-template-rows:repeat(8,1fr);width:min(360px,90vw);aspect-ratio:1;background:var(--gray-800, #1f2937);padding:2px;border-radius:8px;box-shadow:0 4px 14px #00000026}.damas-cell{border:none;padding:0;touch-action:none;min-height:0;cursor:default;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:background .15s}.damas-cell-light{background:#f5e6d3;cursor:default}.damas-cell-dark{background:#8b4513;cursor:pointer;-webkit-user-select:none;user-select:none}.damas-cell-dark[draggable=true]{cursor:grab}.damas-cell-dark[draggable=true]:active{cursor:grabbing}.damas-cell-dark:hover{filter:brightness(1.1)}.damas-cell.damas-valid{background:#22c55e80;cursor:pointer}.damas-cell.damas-valid:hover{background:#22c55ecc}.damas-cell.damas-selected{box-shadow:inset 0 0 0 3px var(--yellow, #facc15)}.damas-cell.damas-dragging{opacity:.6}.damas-ghost{touch-action:none;pointer-events:none}.damas-piece{width:75%;height:75%;border-radius:50%;pointer-events:none}.damas-piece-white{background:radial-gradient(circle at 30% 30%,#fff,#e5e5e5);box-shadow:0 1px 3px #0000004d}.damas-piece-black{background:radial-gradient(circle at 30% 30%,#4b5563,#1f2937);box-shadow:0 1px 3px #0000004d}.damas-piece.damas-king{box-shadow:0 0 0 2px var(--yellow, #facc15),0 1px 3px #0000004d}.damas-cell{position:relative}.turn-black{color:#1f2937;font-weight:700}.turn-white{color:#e5e7eb;font-weight:700}.xadrez-board{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);width:min(400px,92vw);aspect-ratio:1;touch-action:none;-webkit-user-select:none;user-select:none;background:var(--gray-800, #1f2937);padding:2px;border-radius:6px;box-shadow:0 4px 14px #00000026}.xadrez-cell{border:none;padding:0;touch-action:none;min-height:0;cursor:pointer;border-radius:2px;display:flex;align-items:center;justify-content:center;font-size:clamp(1.5rem,4vw,2.2rem);line-height:1;transition:background .15s}.xadrez-cell-light{background:#f0d9b5}.xadrez-cell-dark{background:#b58863}.xadrez-cell:hover{filter:brightness(1.08)}.xadrez-cell.xadrez-valid{background:#22c55e66}.xadrez-cell.xadrez-valid:hover{background:#22c55eb3}.xadrez-cell.xadrez-selected{box-shadow:inset 0 0 0 3px var(--yellow, #facc15)}.xadrez-piece{pointer-events:none}.xadrez-w{color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.3)}.xadrez-b{color:#1f2937;text-shadow:0 1px 1px rgba(255,255,255,.2)}.xadrez-status{margin-top:.75rem;font-size:.95rem;font-weight:600;color:var(--gray-700, #374151);text-align:center;min-height:1.5em}.xadrez-ghost{touch-action:none;pointer-events:none}