/* Archivo is self-hosted by the shared Aprende shell. */
/* Product artwork stays in raster assets. Geometry below represents the playable tiles. */
:root{font-family:Archivo,Arial,sans-serif;color:#20285f;background:#fff;--ink:#20285f;--line:#dce1ee;--muted:#545e79;--wash:#f3f5fc;--red:#cb263c}*{box-sizing:border-box}body{margin:0}button,a,select{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid #cb263c;outline-offset:4px}h1,h2,h3,p{margin:0}p{line-height:1.55}h1,h2,h3{letter-spacing:-.035em;line-height:1.1}h1{font-size:clamp(2rem,4vw,3.2rem)}h1:focus{outline:0}em{font-style:normal;color:var(--red)}header,footer{max-width:1280px;margin:auto;display:flex;align-items:center;gap:22px;padding:18px 40px}header{border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}.brand img{width:42px;height:44px;object-fit:contain}.brand span{font-size:1.7rem;font-weight:700;line-height:1}.brand small{display:block;font-size:.7rem;letter-spacing:.05em;margin-top:6px}.draft{font-size:.8rem;padding:8px 11px;background:var(--wash);border-radius:8px;color:var(--muted)}.quiet{border:0;background:none;padding:12px 0;min-height:44px;text-decoration:underline;text-underline-offset:4px;font-size:.9rem;font-weight:700}main{max-width:1200px;margin:auto;padding:32px 0 48px;min-height:calc(100vh - 170px)}footer{justify-content:space-between;font-size:.85rem;border-top:1px solid var(--line);color:var(--muted)}.eyebrow{font-size:.85rem;letter-spacing:.1em;font-weight:700;color:var(--muted)}.sub{color:var(--muted);font-size:1.1rem;margin:14px 0 24px}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid transparent;background:var(--ink);color:white;border-radius:14px;min-height:48px;padding:14px 22px;font-weight:700;text-decoration:none}.secondary{background:white;color:var(--ink);border-color:#b0bad3}.nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.board{background:var(--wash);border:1px solid var(--line);padding:30px;border-radius:24px;margin:24px 0}.chain{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:15px 5px}.domino{display:inline-flex;flex:0 0 auto;border:2px solid var(--ink);border-radius:12px;background:#fff;box-shadow:0 4px 0 #20285f17;overflow:hidden}.half{width:94px;height:94px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;padding:8px}.half+.half{border-left:2px solid var(--ink)}.swatch{background:var(--color);display:block;width:42px;height:42px;border-radius:50%;border:1px solid #0002}.half small{font-size:.8rem;font-weight:700}.hand{display:flex;gap:18px;flex-wrap:wrap}.tile-choice{border:2px solid transparent;background:transparent;border-radius:16px;padding:7px}.tile-choice:hover{background:#e8edf9}.feedback{padding:18px 0;min-height:60px;line-height:1.5}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip{position:absolute;top:-100px;left:15px;background:var(--ink);color:#fff;padding:14px;z-index:50}.skip:focus{top:12px}dialog{max-width:680px;width:calc(100% - 32px);max-height:85vh;border:1px solid var(--line);border-radius:24px;padding:30px;color:var(--ink)}dialog::backdrop{background:#11193888}dialog>button{float:right;background:var(--wash);border:0;border-radius:50%;width:44px;height:44px;font-size:1.6rem}dialog h2{margin-bottom:25px}dialog p{margin:12px 0}dialog h3{margin-top:22px}dialog li{margin:9px 0;line-height:1.5}@media(max-width:1279px){main{padding:28px 32px 40px}}@media(max-width:640px){header,footer{padding:16px 20px;gap:14px}.brand span{font-size:1.45rem}.draft{display:none}main{padding:25px 20px 35px}.board{padding:18px 12px}.hand{gap:8px}.half{width:76px;height:82px}.tile-choice{padding:4px}footer{align-items:flex-start;flex-direction:column}.sub{font-size:1rem}}