:root { --ink:#182121; --paper:#f7f5ef; --muted:#64706e; --line:#ced2c8; --accent:#1d6156; --accent-ink:#fff; --soft:#e2ebe5; }
* { box-sizing:border-box; }
body { min-width:320px; margin:0; color:var(--ink); background:var(--paper); font-family:Georgia, "Times New Roman", "Noto Serif SC", serif; }
.app-shell { width:min(1120px, calc(100% - 48px)); margin:0 auto; padding:54px 0 42px; }
.app-header { display:grid; grid-template-columns:1fr auto; gap:18px 32px; align-items:end; padding-bottom:28px; border-bottom:1px solid var(--line); }
.eyebrow { margin:0 0 10px; color:var(--accent); font: .76rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing:.12em; text-transform:uppercase; }
h1 { margin:0; font-family:"Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif; font-size:clamp(2.7rem, 7vw, 4.8rem); font-weight:600; letter-spacing:-.065em; line-height:.9; }
.intro { max-width:21rem; margin:0; color:var(--muted); font-size:1rem; line-height:1.55; }
.install-app { grid-column:2; justify-self:end; cursor:pointer; padding:10px 14px; border:1px solid var(--accent); color:var(--accent-ink); background:var(--accent); font: .78rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing:.04em; text-transform:uppercase; }
.install-app:hover { background:#164a43; }
.install-app:focus-visible { outline:3px solid var(--accent); outline-offset:3px; }
.game-nav { display:grid; grid-template-columns:repeat(auto-fit, minmax(118px, 1fr)); gap:8px; padding:20px 0; border-bottom:1px solid var(--line); }
.game-tab { min-width:0; cursor:pointer; padding:12px 8px; border:1px solid transparent; color:var(--muted); background:transparent; font: .9rem/1.2 Georgia, "Times New Roman", "Noto Serif SC", serif; text-align:left; }
.game-tab span { display:block; margin-bottom:4px; font: .68rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; color:inherit; }
.game-tab:hover { color:var(--ink); background:var(--soft); }
.game-tab:focus-visible { outline:3px solid var(--accent); outline-offset:3px; }
.game-tab.is-active { border-color:var(--accent); color:var(--accent-ink); background:var(--accent); }
.game-area { padding-top:24px; }
.game-caption { display:flex; justify-content:space-between; align-items:baseline; gap:20px; padding-bottom:12px; }
.game-caption p { margin:0; }
#game-name { font-size:1.25rem; font-weight:500; }
#game-description { color:var(--muted); font-size:.92rem; }
iframe { display:block; width:100%; min-height:720px; border:0; background:transparent; }
@media (max-width:720px) { .app-shell { width:min(100% - 28px, 1120px); padding-top:38px; } .app-header { display:block; } .intro { margin-top:18px; } .install-app { margin-top:16px; } .game-nav { grid-template-columns:repeat(2, 1fr); } .game-caption { display:block; } #game-description { margin-top:6px; } iframe { min-height:760px; } }