/* THE WORLD OF U.ZU — game-world homepage. The 3D world is a fixed canvas; the story is ordinary HTML on top. */
:root{
  --ink:#f3ecdf;--soft:#c9bfae;--muted:#9a917f;--bg:#0b0a14;--glass:rgba(14,12,24,.72);--glass2:rgba(20,17,32,.86);
  --line:rgba(243,236,223,.16);--amber:#ffb45e;--gold:#ffd77a;--cyan:#7fe7ff;--rose:#ff7a8a;
  --serif:Georgia,"Times New Roman","Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;
  --sans:system-ui,-apple-system,"Segoe UI","Hiragino Sans","Noto Sans JP","Yu Gothic UI","Meiryo","Noto Sans","Noto Sans Thai","Leelawadee UI",sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.85;overflow-x:hidden}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--gold);color:#111;padding:8px 14px;border-radius:8px}
.skip-link:focus{top:12px}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* stage */
.w-stage{position:fixed;inset:0;z-index:0;background:radial-gradient(120% 80% at 70% 20%,#3a2346 0%,#140f22 45%,#07060c 100%)}
#world{width:100%;height:100%;display:block}
.w-vignette{position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(6,5,12,.72) 0%,rgba(6,5,12,.4) 38%,rgba(6,5,12,0) 62%),radial-gradient(130% 100% at 60% 45%,transparent 50%,rgba(0,0,0,.55) 100%)}
@media (max-width:640px){.w-vignette{background:rgba(6,5,12,.45)}}
html.no-webgl .w-stage{background:url(../assets/hero.webp) center/cover,#140f22}
html.no-webgl .w-stage:after{content:"";position:absolute;inset:0;background:rgba(8,6,14,.66)}

/* loading */
.w-loading{position:fixed;inset:0;z-index:40;display:grid;place-content:center;justify-items:center;gap:14px;background:#07060c;transition:opacity .9s ease,visibility .9s}
.w-loading.done{opacity:0;visibility:hidden}
.w-loading-title{margin:0;font-family:var(--serif);letter-spacing:.5em;color:var(--gold);font-size:13px}
.w-loading-bar{width:min(280px,70vw);height:2px;background:rgba(255,255,255,.12)}
.w-loading-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--amber),var(--gold));transition:width .3s}
.w-loading-note{margin:0;color:var(--muted);font-size:12px;letter-spacing:.1em}

/* HUD */
.w-hud{position:fixed;top:0;left:0;right:0;z-index:30;display:flex;align-items:center;gap:16px;padding:12px max(16px,env(safe-area-inset-right)) 12px max(16px,env(safe-area-inset-left));background:linear-gradient(180deg,rgba(7,6,12,.85),rgba(7,6,12,0))}
.w-brand{flex:none;display:flex;align-items:center;padding:7px 14px;border-radius:999px;background:#f3ecdf;box-shadow:0 0 22px rgba(255,215,122,.35)}
.w-brand img{height:22px;width:auto;max-width:none;flex:none}
.w-quest{min-width:0}
.w-quest{position:relative}
.w-quest-toggle{display:flex;align-items:center;gap:8px;min-height:38px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:var(--glass);color:var(--ink);font:inherit;font-size:13px;cursor:pointer;backdrop-filter:blur(8px)}
.w-quest-now:before{content:"◆ ";color:var(--gold);font-size:10px}
.w-quest-list{position:absolute;top:46px;left:0;min-width:230px;margin:0;padding:8px;list-style:none;background:var(--glass2);border:1px solid var(--line);border-radius:14px;backdrop-filter:blur(12px);display:none}
.w-quest.open .w-quest-list{display:block}
.w-quest-list a{display:flex;gap:12px;padding:9px 12px;border-radius:9px;text-decoration:none;font-size:14px}
.w-quest-list a span{font-family:var(--serif);color:var(--muted);font-size:12px;padding-top:2px}
.w-quest-list a:hover,.w-quest-list a.on{background:rgba(255,215,122,.12)}
.w-quest-list a.on span{color:var(--gold)}
.w-hud-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.w-online{display:flex;align-items:center;gap:7px;min-height:38px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:var(--glass);text-decoration:none;font-size:12px;letter-spacing:.08em;backdrop-filter:blur(8px)}
.w-online b{font-size:15px;color:var(--cyan);letter-spacing:0}
.w-dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.35}}
.w-lang{display:flex;align-items:center;gap:6px;min-height:38px;padding:0 4px 0 12px;border:1px solid var(--line);border-radius:999px;background:var(--glass);backdrop-filter:blur(8px)}
.w-lang select{background:transparent;color:var(--ink);border:0;font:inherit;font-size:13px;padding:6px 6px;max-width:130px}
.w-lang select option{background:#141020}
.w-xp{position:fixed;left:0;right:0;top:0;height:2px;z-index:31;background:rgba(255,255,255,.06)}
.w-xp span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--amber),var(--gold),var(--cyan));box-shadow:0 0 8px var(--gold)}

/* chapters */
main{position:relative;z-index:2}
.w-ch{position:relative;min-height:100vh;padding:clamp(120px,18vh,200px) clamp(16px,6vw,96px) clamp(80px,14vh,160px);display:flex;flex-direction:column;gap:28px;align-items:flex-start}
.w-ch>*{max-width:620px;width:100%}
.w-panel{background:var(--glass);border:1px solid var(--line);border-radius:18px;padding:clamp(20px,3vw,32px);backdrop-filter:blur(10px) saturate(1.2);-webkit-backdrop-filter:blur(10px) saturate(1.2);box-shadow:0 30px 80px rgba(0,0,0,.35)}
.w-eyebrow,.w-path-tag,.w-chapter-card p{font-family:var(--serif);letter-spacing:.32em;font-size:12px;color:var(--gold);margin:0 0 12px;text-transform:uppercase}
h1,h2,h3{margin:0;line-height:1.35;font-weight:700}
h1{font-family:var(--serif);font-size:clamp(34px,5.6vw,68px);letter-spacing:.02em;text-shadow:0 2px 24px rgba(0,0,0,.8),0 0 40px rgba(255,190,110,.25)}
.w-title-panel .w-lead,.w-eyebrow,.w-scroll-hint{text-shadow:0 1px 12px rgba(0,0,0,.9)}
.w-lead{font-size:clamp(15px,1.3vw,17px);color:var(--soft);margin:14px 0 0}
.w-panel>.w-lead:first-child{margin-top:0}
.w-note{font-size:12.5px;color:var(--muted);margin:12px 0 0}
.w-h3{font-size:18px;margin-bottom:14px}
.w-origin{margin:16px 0 0;padding:14px 16px;border-left:2px solid var(--gold);background:rgba(255,215,122,.06);border-radius:0 10px 10px 0;font-size:13.5px;color:var(--soft)}

/* title screen */
.w-title{justify-content:center;gap:22px}
.w-title-panel{background:transparent;border:0;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none;padding:0;max-width:760px}
.w-paths{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:880px}
.w-path{position:relative;padding:22px;border-radius:18px;background:var(--glass2);border:1px solid var(--line);backdrop-filter:blur(10px);overflow:hidden}
.w-path:before{content:"";position:absolute;inset:0 0 auto;height:2px}
.w-path.bespoke:before{background:linear-gradient(90deg,var(--amber),transparent)}
.w-path.gogashare:before{background:linear-gradient(90deg,var(--gold),var(--cyan))}
.w-path h2{font-size:24px;font-family:var(--serif)}
.w-path.gogashare h2{background:linear-gradient(90deg,var(--gold),#fff3c9 40%,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;font-size:28px;letter-spacing:.02em}
.w-path p{margin:8px 0 0;color:var(--soft);font-size:14.5px}
.w-path-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.w-scroll-hint{color:var(--muted);font-size:13px;letter-spacing:.12em;animation:hint 2.4s ease-in-out infinite}
.w-scroll-hint span{color:var(--gold)}
@keyframes hint{50%{transform:translateY(6px);opacity:.6}}

/* buttons */
.w-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:999px;border:1px solid rgba(255,180,94,.5);background:linear-gradient(180deg,rgba(255,180,94,.22),rgba(255,180,94,.08));color:var(--ink);font:inherit;font-size:14px;font-weight:600;text-decoration:none;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s}
.w-btn:hover{transform:translateY(-1px);box-shadow:0 0 24px rgba(255,180,94,.35)}
.w-btn.gold{border-color:rgba(255,215,122,.65);background:linear-gradient(180deg,rgba(255,215,122,.3),rgba(255,215,122,.1))}
.w-btn.ghost{border-color:var(--line);background:rgba(255,255,255,.04)}
.w-btn:disabled{opacity:.5;cursor:default;transform:none}

/* chapter title card (game-style) */
.w-chapter-card{padding:0 0 0 18px;border-left:2px solid var(--gold)}
.w-chapter-card h2{font-family:var(--serif);font-size:clamp(26px,3.6vw,44px);text-shadow:0 0 30px rgba(0,0,0,.6)}
.w-chapter-card.amber{border-color:var(--amber)}.w-chapter-card.amber p{color:var(--amber)}
.w-chapter-card.cyan{border-color:var(--cyan)}.w-chapter-card.cyan p{color:var(--cyan)}
.w-chapter-card.gold h2{background:linear-gradient(90deg,var(--gold),#fff6d6);-webkit-background-clip:text;background-clip:text;color:transparent}

/* dialogue window */
.w-dialogue{position:relative;background:linear-gradient(180deg,rgba(14,11,24,.9),rgba(10,8,18,.94));border:1px solid rgba(255,215,122,.35);border-radius:6px;padding:26px 26px 22px;box-shadow:0 0 0 4px rgba(10,8,18,.6),0 30px 80px rgba(0,0,0,.5)}
.w-dialogue:after{content:"▼";position:absolute;right:18px;bottom:10px;font-size:11px;color:var(--gold);animation:hint 1.4s infinite}
.w-speaker{position:absolute;top:-13px;left:18px;margin:0;padding:2px 12px;background:#0b0a14;border:1px solid rgba(255,215,122,.35);font-family:var(--serif);letter-spacing:.3em;font-size:11px;color:var(--gold)}
.w-line{margin:0 0 14px;font-size:clamp(16px,1.5vw,19px);line-height:1.9;font-family:var(--serif)}
.w-line:last-child{margin-bottom:0;color:var(--gold)}
.tw-hide{visibility:hidden}

/* cards / lists */
.w-cards{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}
.w-cards.four{grid-template-columns:1fr 1fr}
.w-cards li{padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.03);display:flex;flex-direction:column;gap:4px}
.w-cards b{font-size:15px}
.w-cards span{font-size:13px;color:var(--soft);line-height:1.7}
.w-cards a{margin-top:auto;padding-top:6px;font-size:12.5px;color:var(--amber);text-decoration:none}
.w-works{display:grid;gap:14px}
.w-works figure{margin:0;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:#000}
.w-works figcaption{padding:12px 14px;font-size:13px;color:var(--soft);display:flex;flex-direction:column;gap:2px;background:rgba(10,8,18,.9)}
.w-works figcaption b{color:var(--ink);font-size:14px}
.w-steps{list-style:none;margin:0 0 6px;padding:0;display:grid;gap:8px;counter-reset:s}
.w-steps li{display:grid;grid-template-columns:38px 1fr;gap:2px 10px;align-items:baseline}
.w-steps span{grid-row:span 2;font-family:var(--serif);color:var(--amber);font-size:20px}
.w-steps em{font-style:normal;font-size:13px;color:var(--soft)}
.w-panel .w-btn{margin-top:14px}
.w-loop{list-style:none;margin:18px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.w-loop li{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:12px 14px;border-radius:12px;background:linear-gradient(90deg,rgba(255,215,122,.1),rgba(127,231,255,.05));border:1px solid rgba(255,215,122,.22);font-size:13.5px}
.w-loop em{font-style:normal;color:var(--gold);font-family:var(--serif);white-space:nowrap}
.w-register label{display:block;font-weight:600;margin-bottom:8px}
.w-field{display:flex;gap:8px;flex-wrap:wrap}
.w-field input{flex:1 1 240px;min-height:46px;padding:0 14px;border-radius:12px;border:1px solid var(--line);background:rgba(0,0,0,.35);color:var(--ink);font:inherit}
.w-field .w-btn{margin-top:0}

/* lab */
.w-terminal{margin-top:18px;padding:16px;border-radius:10px;background:rgba(2,16,22,.85);border:1px solid rgba(127,231,255,.3);font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;font-size:13px}
.w-term-head{margin:0 0 10px;color:var(--cyan);font-size:11px;letter-spacing:.12em}
.w-terminal ol{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.w-terminal li{display:grid;grid-template-columns:44px 1fr;gap:8px;color:#cfeff7}
.w-terminal time{color:var(--cyan)}
.w-telemetry{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:16px 0}
.w-telemetry div{padding:10px;border-radius:10px;border:1px solid rgba(127,231,255,.25);background:rgba(127,231,255,.05)}
.w-telemetry dt{font-size:11px;color:var(--muted);letter-spacing:.06em}
.w-telemetry dd{margin:0;font-family:ui-monospace,Consolas,monospace;font-size:18px;color:var(--cyan)}
.w-techlist{margin:0;padding-left:1.2em;color:var(--soft);font-size:14px}

/* travelers */
.w-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:18px 0 0}
.w-stats div{padding:12px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.w-stats dt{font-size:12px;color:var(--muted)}
.w-stats dd{margin:0;font-family:var(--serif);font-size:30px;color:var(--gold);line-height:1.3}
.w-stats div:first-child dd{color:var(--cyan)}
.w-where{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.w-where li{font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid rgba(127,231,255,.3);color:#cfeff7}
.w-trace{display:flex;gap:8px;flex-wrap:wrap}
.w-trace select{flex:1 1 220px;min-height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(0,0,0,.35);color:var(--ink);font:inherit;padding:0 10px}
.w-trace .w-btn{margin-top:0}
.w-traces{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:6px;max-height:260px;overflow:auto}
.w-traces li{display:flex;gap:10px;align-items:baseline;font-size:13.5px;padding:8px 10px;border-radius:10px;background:rgba(255,180,94,.06)}
.w-traces li:before{content:"✦";color:var(--amber)}
.w-traces small{margin-left:auto;color:var(--muted);white-space:nowrap;font-size:11.5px}

/* contact (keeps contact.js ids) */
.contact-box form{display:grid;gap:6px;margin-top:16px}
.contact-box label{font-size:13.5px;font-weight:600;margin-top:8px}
.contact-box label span{font-weight:400;color:var(--muted);font-size:12px;margin-left:4px}
.contact-box label .required{color:var(--rose)}
.contact-box input:not([type=checkbox]),.contact-box select,.contact-box textarea{width:100%;min-height:46px;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:rgba(0,0,0,.35);color:var(--ink);font:inherit;font-size:15px}
.contact-box textarea{min-height:140px;resize:vertical}
.contact-box [aria-invalid=true]{border-color:var(--rose)}
.form-two-col{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.form-honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.consent-label{display:flex;gap:10px;align-items:flex-start;font-weight:400!important;margin-top:12px!important}
.consent-label input{margin-top:6px;accent-color:var(--gold)}
.contact-submit{justify-self:start;margin-top:12px}
.form-status{margin:8px 0 0;font-size:14px}
.form-status[data-state=error]{color:var(--rose)}
.form-status[data-state=success]{color:var(--gold)}
.w-company p{color:var(--soft);font-size:14.5px;margin:0}
.w-links{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:14px!important}
.w-links a{color:var(--gold);text-decoration:none}
.w-footer{display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--muted);font-size:12px}
.w-footer p{margin:0}
.w-motion{background:none;border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:6px 12px;font:inherit;font-size:12px;cursor:pointer}

/* toast for presence events */
.w-toast{position:fixed;left:50%;bottom:20px;transform:translate(-50%,20px);z-index:35;padding:10px 16px;border-radius:999px;background:var(--glass2);border:1px solid rgba(127,231,255,.35);font-size:13px;opacity:0;transition:.4s;pointer-events:none;max-width:calc(100vw - 32px)}
.w-toast.show{opacity:1;transform:translate(-50%,0)}

@media (max-width:900px){
  .w-paths{grid-template-columns:1fr}
}
@media (max-width:640px){
  body{font-size:15px}
  .w-hud{gap:6px;padding-top:max(8px,env(safe-area-inset-top));padding-bottom:8px;background:rgba(7,6,12,.88);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.06)}
  .w-hud-right{gap:6px;flex:none}
  .w-lang>span{display:none}
  .w-quest-toggle,.w-online,.w-lang{min-height:34px}
  .w-brand{padding:6px 10px}.w-brand img{height:16px}
  .w-quest-toggle{padding:0 10px;font-size:12px;max-width:100%;min-width:0}
  .w-quest-now{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .w-online{padding:0 10px}
  .w-online-label{display:none}
  .w-lang{padding-left:8px}
  .w-lang select{max-width:74px;font-size:12px}
  .w-ch{padding-left:16px;padding-right:16px;min-height:auto;padding-top:110px;padding-bottom:90px}
  .w-title{min-height:100svh}
  .w-cards.four,.w-loop,.form-two-col{grid-template-columns:1fr}
  .w-telemetry{grid-template-columns:repeat(2,1fr)}
  .w-stats dd{font-size:24px}
  .w-dialogue{padding:24px 18px 20px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}