:root{--deck-ink:#eaf3fa;--deck-soft:#bcd2e2;--deck-muted:#91a9ba;--deck-navy:#071d34;--deck-navy-2:#0b2f52;--deck-line:rgba(255, 255, 255, .13);--deck-orange:#27b6da;--deck-blue:#008ccf;--mono:'IBM Plex Mono',ui-monospace,Menlo,monospace;--display:'Inter','Helvetica Neue',Helvetica,Arial,sans-serif;--text-face:'Inter','Helvetica Neue',Helvetica,Arial,sans-serif;--bar:64px;color-scheme:dark}*{box-sizing:border-box}.deck-body{margin:0;min-height:100vh;overflow:hidden;background:radial-gradient(90% 70% at 100% 0,rgba(39,182,218,.26) 0,transparent 60%),radial-gradient(80% 60% at 0 100%,rgba(0,140,207,.2) 0,transparent 60%),linear-gradient(160deg,var(--deck-navy-2) 0,var(--deck-navy) 70%);color:var(--deck-ink);font-family:var(--text-face)}.deck-skip{position:fixed;left:-9999px;top:0;z-index:60;padding:12px 16px;background:#fff;color:#071d34}.deck-skip:focus{left:16px;top:16px}.deck-bar{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--bar);padding:0 clamp(16px,3vw,32px);padding-top:env(safe-area-inset-top,0);background:linear-gradient(180deg,rgba(7,29,52,.95),rgba(7,29,52,.6));border-bottom:1px solid var(--deck-line)}.deck-home img{display:block;height:34px;width:auto}.deck-chapter{font:600 13px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--deck-soft)}.deck-tools{display:flex;align-items:center;gap:10px}.deck-exit,.deck-tools button{padding:9px 14px;border:1px solid var(--deck-line);border-radius:8px;background:rgba(255,255,255,.05);color:var(--deck-ink);font:600 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;cursor:pointer;text-decoration:none;white-space:nowrap}.deck-exit:hover,.deck-tools button:hover{border-color:var(--deck-orange);color:#fff}.deck-exit:focus-visible,.deck-tools button:focus-visible{outline:2px solid var(--deck-blue);outline-offset:2px}.deck-stage{position:fixed;left:0;right:0;bottom:0;top:calc(var(--bar) + env(safe-area-inset-top,0px));background:#071d34}.deck-stage:fullscreen{top:0}.deck-stage:-webkit-full-screen{top:0}.deck-frame-embed{position:absolute;inset:0;width:100%;height:100%;border:0}.deck-fallback{position:absolute;inset:0;z-index:0;display:flex;flex-direction:column;justify-content:center;gap:18px;padding:clamp(24px,6vw,64px);text-align:left}.deck-fallback h1{margin:0;font:600 clamp(28px, 5vw, 54px)/1.06 var(--display);letter-spacing:-.04em}.deck-fallback p{margin:0;max-width:56ch;font-size:clamp(15px, 2vw, 20px);line-height:1.6;color:var(--deck-soft)}.deck-cta{display:flex;flex-wrap:wrap;gap:14px}.deck-cta .button{display:inline-flex;align-items:center;gap:12px;padding:15px 24px;border-radius:10px;font:600 14px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;text-decoration:none}.deck-cta .button-primary{background:linear-gradient(120deg,var(--deck-blue),var(--deck-orange));color:#fff}.deck-cta .button-secondary{border:1px solid var(--deck-line);color:var(--deck-ink)}@media (max-width:720px){:root{--bar:58px}.deck-chapter{display:none}.deck-home img{height:28px}.deck-exit,.deck-tools button{padding:8px 10px;font-size:10px;letter-spacing:.06em}}.deck-present{position:absolute;left:50%;top:50%;z-index:1;width:190px;height:230px;transform:translate(-50%,-50%);border-radius:20px;cursor:pointer}.deck-present:focus-visible{outline:3px solid var(--deck-blue);outline-offset:4px}