*{box-sizing:border-box}body{margin:0;overflow:hidden;background:#899477;color:#fff0cd;font-family:serif}#world{position:fixed;inset:0}canvas{display:block;width:100%;height:100%}.grain,.vignette{position:fixed;inset:0;pointer-events:none}.grain{opacity:.055;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath filter='url(%23n)' opacity='.55' d='M0 0h180v180H0z'/%3E%3C/svg%3E");mix-blend-mode:multiply}.vignette{background:radial-gradient(ellipse,transparent 45%,#172b202b)}
#menu{position:fixed;inset:0;display:flex;align-items:flex-end;justify-content:center;padding:0 24px clamp(36px,8vh,88px);background:linear-gradient(transparent 28%,#15211938 65%,#152119a6);transition:opacity .45s;pointer-events:none}
#menu.hidden{opacity:0;pointer-events:none}
.entrance{width:min(100%,580px);text-align:center;color:#fff0d4;pointer-events:auto}
#menu.hidden .entrance{pointer-events:none}
.sound-notice{margin:0 0 24px;font:11px/1.8 sans-serif;letter-spacing:.1em;color:#fff0d4b8;text-shadow:0 1px 8px #18221880}
#start{position:relative;min-width:210px;padding:20px 34px;border:1px solid #fff0d459;border-radius:2px;background:#26362924;color:inherit;font:20px/1.4 serif;letter-spacing:.32em;text-indent:.32em;cursor:pointer;transition:background .25s,border-color .25s,transform .25s}
#start:hover{background:#fff0d414;border-color:#fff0d4b3;transform:translateY(-2px)}
#start:disabled{opacity:.4;cursor:wait;transform:none}
#start:focus-visible,.film-credits:focus-visible{outline:2px solid #fff0d4;outline-offset:6px}
.controls{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 24px;margin:34px auto 0;padding-top:23px;border-top:1px solid #fff0d426;font:11px/1.8 sans-serif;color:#fff0d4b8;letter-spacing:.04em}
.controls span{white-space:nowrap}
kbd{font:inherit;color:#fff0d4;margin-right:5px}
.film-credits{display:inline-block;margin-top:27px;padding:5px;color:#fff0d48c;font:10px/1.5 sans-serif;text-decoration:none;text-underline-offset:4px}
.film-credits:hover{text-decoration:underline;color:#fff0d4}
@media(prefers-reduced-motion:reduce){#menu,#start{transition:none}}
/* Three entrance studies. Query links are for review; no settings UI. */
#start{border:0;background:none;border-radius:0;min-width:0;font-family:'Hiragino Mincho ProN','Yu Mincho',serif;font-weight:400;box-shadow:none}
#start:hover{background:none}
.sound-notice{font-size:11px;letter-spacing:.14em}
.controls{font-size:11px}
/* A — a tall inscription, offset against the architecture. */
[data-entrance=a] #menu{padding:0;background:linear-gradient(90deg,#14291fc2,transparent 64%)}
[data-entrance=a] .entrance{position:absolute;left:8vw;right:8vw;bottom:8vh;width:auto;text-align:left;display:flex;flex-direction:column;align-items:flex-start}
[data-entrance=a] #start{position:absolute;right:0;bottom:32px;writing-mode:horizontal-tb;min-width:180px;padding:20px 36px;margin:0;border:1px solid #fff0d480;background:#26362938;font-size:24px;letter-spacing:.24em;text-indent:.24em;text-shadow:0 1px 8px #14291f40;box-shadow:0 5px 20px #14291f12}
[data-entrance=a] #start:hover{transform:translateY(-2px);background:#26362966;border-color:#fff0d4cc;color:#fff}
[data-entrance=a] #start:active{transform:translateY(0);background:#26362980}
[data-entrance=a] .sound-notice{position:absolute;right:0;bottom:0;margin:0;font-size:10px;line-height:1.8;letter-spacing:.06em;text-align:right}
[data-entrance=a] .controls{justify-content:flex-start;gap:12px 20px;border:0;margin:24px 0 0;padding:0;max-width:240px}
[data-entrance=a] .film-credits{margin:24px 0 0;padding:0}
/* B — a suspended light, with a quiet, symmetrical horizon. */
[data-entrance=b] #menu{padding:0;background:linear-gradient(0deg,#14231bd9,transparent 58%)}
[data-entrance=b] .entrance{position:absolute;inset:0;width:100%;pointer-events:none}
[data-entrance=b] #start{position:absolute;left:50%;top:29%;transform:translate(-50%,-50%);pointer-events:auto;font-size:44px;letter-spacing:.5em;padding:38px 52px;text-shadow:0 2px 22px #28382080}
[data-entrance=b] #start:before{content:'';position:absolute;width:8px;height:8px;border:1px solid #fff0d4aa;transform:rotate(45deg);left:calc(50% - 4px);top:0}
[data-entrance=b] #start:after{content:'';position:absolute;width:56px;height:1px;background:#fff0d466;bottom:5px;left:calc(50% - 28px)}
[data-entrance=b] #start:hover{color:#fff;text-shadow:0 0 26px #fff0d499}
[data-entrance=b] .sound-notice{position:absolute;bottom:154px;width:100%;margin:0}
[data-entrance=b] .controls{position:absolute;bottom:95px;left:50%;transform:translateX(-50%);width:min(90%,640px);margin:0;padding:22px 0 0}
[data-entrance=b] .film-credits{position:absolute;bottom:35px;left:50%;transform:translateX(-50%);pointer-events:auto;margin:0}
/* C — a spare printed frame, large landscape and low editorial baseline. */
[data-entrance=c] #menu{padding:0;background:linear-gradient(0deg,#182c24ed,transparent 55%)}
[data-entrance=c] #menu:before{content:'';position:absolute;inset:26px;border:1px solid #fff0d43b;pointer-events:none}
[data-entrance=c] .entrance{position:absolute;left:7vw;right:7vw;bottom:8vh;width:auto;display:grid;grid-template-columns:1fr 1fr;text-align:left;align-items:end;gap:24px 48px}
[data-entrance=c] #start{grid-column:1;grid-row:1 / 3;justify-self:start;font-size:clamp(48px,6vw,80px);letter-spacing:.22em;padding:0 0 20px;border-bottom:1px solid #fff0d46b}
[data-entrance=c] .sound-notice{grid-column:2;margin:0}
[data-entrance=c] .controls{grid-column:2;border:0;justify-content:flex-start;margin:0;padding:0;gap:10px 22px;max-width:320px}
[data-entrance=c] .film-credits{grid-column:2;margin:0;padding:0;justify-self:start}
#menu.hidden .entrance *{pointer-events:none}