/* big puzzle buttons — one per game, scroll down through them */
.cards{display:flex;flex-direction:column;gap:18px;position:relative;z-index:2}
.card{position:relative;overflow:hidden;border-radius:34px;min-height:min(64vh,460px);padding:30px;display:flex;flex-direction:column;justify-content:space-between;
  text-align:left;text-decoration:none;isolation:isolate;transition:transform .45s cubic-bezier(.2,.9,.3,1.2),box-shadow .45s}
.card:hover{transform:translateY(-4px);box-shadow:0 26px 60px rgba(0,0,0,.42)}
.card:active{transform:scale(.985)}
.card canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1}
.card .top{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;opacity:.8}
.card h3{font-size:clamp(48px,9vw,92px);line-height:.92}
.card .s{font-size:15px;opacity:.8;margin-top:10px}
.card .go{display:inline-flex;gap:10px;align-items:center;margin-top:22px;padding:13px 22px;border-radius:40px;font-weight:700;font-size:15px;background:rgba(255,255,255,.88);color:#0A1723;box-shadow:0 6px 18px rgba(0,0,0,.15)}
.card.done .go{background:rgba(10,23,35,.85);color:#F4F1EA}
.card.lock{min-height:min(40vh,300px)}
.card.lock h3{font-size:clamp(40px,7vw,68px)}
.card.lock .go{background:rgba(255,255,255,.35);color:inherit;box-shadow:none}
.later-h{font-size:clamp(26px,3.6vw,38px);margin:56px 0 14px}
.proto{font-size:12px;color:var(--muted);margin-top:10px}
.sec{margin-top:46px}
.sec h2{font-size:clamp(26px,3.6vw,38px);margin-bottom:14px}
@media(max-width:620px){.card{padding:24px;border-radius:28px;min-height:min(58vh,420px)}}

/* nav */
.navr{display:flex;gap:16px;align-items:center}
.navr>a{color:var(--muted);text-decoration:none;font-size:13px}
.navr>a:hover{color:var(--paper)}
@media(max-width:560px){.navr>a{display:none}}
html{scroll-behavior:smooth}