:root{--ink: #f7f9fc;--ink-dim: rgba(247, 249, 252, .72);--shadow: 0 1px 3px rgba(20, 40, 70, .35);--glass: rgba(255, 255, 255, .12);--glass-border: rgba(255, 255, 255, .35);--accent: #ffcf6e;--slate: #3e4a5b;--slate-dim: rgba(62, 74, 91, .72);--cyan: #7fe6ff;--cyan-strong: #38c8f0;--cyan-deep: #1b8fb8;--glass-bg: rgba(255, 255, 255, .3);--glass-line: rgba(255, 255, 255, .6);--nav-h: 58px;--joy: clamp(136px, 40vw, 176px);--st: env(safe-area-inset-top, 0px);--sb: env(safe-area-inset-bottom, 0px);--sl: env(safe-area-inset-left, 0px);--sr: env(safe-area-inset-right, 0px)}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;background:#9cc6ec;font-family:Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic,system-ui,sans-serif;color:var(--ink);user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:none;overscroll-behavior:none}#app,#app canvas{position:fixed;inset:0;width:100%;height:100%;display:block}.hidden{display:none!important}#hud{position:fixed;inset:0;pointer-events:none;z-index:10;color:var(--slate);transition:opacity .4s ease}.glass,#comm,#hotbar,#navbar,#prompt,#toast,#mode-pill{background:var(--glass-bg);border:1px solid var(--glass-line);box-shadow:0 6px 24px #3c5a8224,inset 0 1px #ffffff8c;-webkit-backdrop-filter:blur(12px) saturate(1.15);backdrop-filter:blur(12px) saturate(1.15)}#comm{position:absolute;left:calc(14px + var(--sl));top:calc(14px + var(--st));display:flex;align-items:center;gap:12px;padding:8px 18px 8px 8px;border-radius:44px}#avatar{position:relative;width:58px;height:58px;border-radius:50%;overflow:hidden;flex:none;border:2px solid rgba(255,255,255,.9);box-shadow:0 0 0 3px #7fe6ff59,0 4px 14px #28507840}#avatar:after{content:"";position:absolute;inset:-1px;border-radius:50%;border:2px solid transparent;border-top-color:var(--cyan);border-right-color:#7fe6ff66;animation:spin 3.2s linear infinite}#avatar svg{width:100%;height:100%;display:block}#comm-status{font-size:11px;letter-spacing:.18em;color:var(--slate-dim)}#comm-status .dots i{font-style:normal;animation:blink 1.4s infinite}#comm-status .dots i:nth-child(2){animation-delay:.2s}#comm-status .dots i:nth-child(3){animation-delay:.4s}#comm-name{font-size:19px;letter-spacing:.14em;font-weight:500;margin:1px 0 4px}#wave{display:flex;align-items:center;gap:2px;height:16px}#wave i{width:2px;height:var(--h);border-radius:1px;background:var(--cyan-strong);box-shadow:0 0 4px #7fe6ffcc;animation:wave 1.1s ease-in-out infinite alternate}#wave .wave-line{width:46px;height:1px;margin-left:4px;background:linear-gradient(90deg,#38c8f0cc,#38c8f026)}#wave .wave-node{width:7px;height:7px;border-radius:50%;border:1px solid var(--cyan-strong);box-shadow:0 0 6px var(--cyan)}#mode-pill{position:absolute;left:calc(22px + var(--sl));top:calc(94px + var(--st));display:flex;align-items:baseline;gap:8px;padding:3px 12px;border-radius:20px;font-size:11px;letter-spacing:.2em;opacity:.85}#mode-jp{font-weight:500}#mode-en{font-size:9px;letter-spacing:.35em;color:var(--slate-dim)}#altitude{font-size:10px;letter-spacing:.1em;color:var(--cyan-deep)}#depth{position:absolute;right:calc(18px + var(--sr));top:calc(16px + var(--st));width:230px;text-align:right;text-shadow:0 0 10px rgba(255,255,255,.9),0 0 2px rgba(255,255,255,.8)}#depth:before{content:"";position:absolute;inset:-10px -14px -12px -40px;z-index:-1;border-radius:20px;background:radial-gradient(ellipse at 70% 40%,#ffffff8c,#fff0 72%)}#depth-head{display:flex;align-items:center;justify-content:flex-end;gap:8px;margin-bottom:14px}.depth-rule{width:120px;height:1px;background:linear-gradient(90deg,#5a6e8700,#5a6e878c)}#depth-icon{width:34px;height:34px;color:var(--slate)}#depth-icon svg{width:100%;height:100%;filter:drop-shadow(0 0 4px rgba(255,255,255,.9))}#depth-label{font-size:13px;letter-spacing:.2em;color:var(--slate-dim)}#depth-lv{font-size:22px;letter-spacing:.08em;font-weight:300;margin-bottom:14px}#loc-name{font-size:15px;letter-spacing:.16em;font-weight:500}#loc-desc{font-size:11px;letter-spacing:.1em;color:var(--slate-dim);margin-top:3px}#depth.swap #loc-name,#depth.swap #loc-desc{animation:fadein .8s ease}#progress{display:flex;align-items:center;justify-content:flex-end;gap:10px;margin-top:10px}#progress-bar{position:relative;width:150px;height:4px;border-radius:2px;background:#ffffff8c;border:1px solid rgba(120,140,165,.35);overflow:hidden}#progress-fill{position:absolute;left:0;top:0;bottom:0;width:12%;background:linear-gradient(90deg,#bfeeff,var(--cyan-strong));box-shadow:0 0 6px var(--cyan);transition:width 1.2s ease}#progress-pct{font-size:12px;letter-spacing:.05em;min-width:34px}#compass{position:absolute;top:calc(18px + var(--st));left:50%;transform:translate(-50%);width:300px;height:28px;overflow:hidden;opacity:.8;-webkit-mask-image:linear-gradient(90deg,transparent,#000 25%,#000 75%,transparent);mask-image:linear-gradient(90deg,transparent,#000 25%,#000 75%,transparent);color:#fff;text-shadow:0 1px 3px rgba(20,40,70,.4)}#compass.off{display:none}#compass-strip{position:absolute;top:0;left:0;height:100%;white-space:nowrap}#compass-strip span{position:absolute;top:6px;transform:translate(-50%);font-size:11px;letter-spacing:.1em;color:#ffffffbf}#compass-strip span.major{color:#fff;font-size:13px;font-weight:600;top:4px}#compass-strip span.tick{top:17px;width:1px;height:5px;background:#ffffffb3}#compass-strip span.poi{top:17px;width:6px;height:6px;border-radius:50%}#compass-needle{position:absolute;left:50%;bottom:0;width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-bottom:5px solid #fff;transform:translate(-50%)}#minimap{position:absolute;right:calc(24px + var(--sr));top:calc(190px + var(--st));width:160px;height:160px;border-radius:50%;border:1px solid var(--glass-line);box-shadow:0 4px 20px #1e3c6440;opacity:.92}#poi-line{position:absolute;left:0;top:0;width:0;margin-left:-1px;will-change:transform,height;border-left:1.5px dashed rgba(255,255,255,.9);filter:drop-shadow(0 0 2px rgba(56,200,240,.9));-webkit-mask-image:linear-gradient(180deg,transparent,#000 18%,#000 82%,transparent);mask-image:linear-gradient(180deg,transparent,#000 18%,#000 82%,transparent)}#poi-label{position:absolute;left:0;top:0;display:flex;align-items:center;gap:8px;margin:-9px 0 0 -9px;will-change:transform;font-size:12px;letter-spacing:.12em;color:var(--slate)}#poi-label>div{padding:4px 10px 4px 8px;border-radius:8px;background:#ffffff6b;border:1px solid rgba(255,255,255,.6);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.poi-dot{width:18px;height:18px;border-radius:50%;flex:none;border:1.5px solid #fff;background:radial-gradient(circle,var(--slate) 0 3px,rgba(255,255,255,.7) 4px);box-shadow:0 0 10px var(--cyan),0 0 0 4px #7fe6ff33;animation:poi 2s ease-out infinite}.poi-title{font-weight:500}#poi-dist{font-size:11px;color:var(--slate-dim);margin-top:2px}#prompt{position:absolute;left:50%;bottom:36%;transform:translate(-50%);padding:8px 18px;font-size:14px;letter-spacing:.12em;border-radius:22px;white-space:nowrap}#prompt b{display:inline-block;min-width:22px;padding:1px 6px;margin-right:10px;border:1px solid var(--slate);border-radius:5px;text-align:center;font-weight:600}#controls{position:absolute;left:calc(20px + var(--sl));bottom:calc(var(--nav-h) + 76px + var(--sb));font-size:11px;line-height:1.9;letter-spacing:.08em;color:#fff;text-shadow:0 1px 3px rgba(20,40,70,.45)}#controls.off{display:none}#controls kbd{display:inline-block;min-width:19px;padding:0 5px;margin-right:5px;border:1px solid rgba(255,255,255,.6);border-radius:4px;background:#ffffff1f;font-family:inherit;font-size:10px;color:#fff;text-align:center}#toast{position:absolute;left:50%;top:24%;transform:translate(-50%);padding:8px 22px;border-radius:24px;white-space:nowrap;font-size:15px;letter-spacing:.3em;font-weight:400;opacity:0;transition:opacity .8s ease}#toast.show{opacity:1}#hint{position:absolute;left:calc(18px + var(--sl));bottom:calc(var(--nav-h) + 22px + var(--sb));display:flex;gap:9px;align-items:flex-start;font-size:12px;line-height:1.7;letter-spacing:.12em;color:#fff;text-shadow:0 1px 4px rgba(20,40,70,.55);opacity:0;transform:translateY(6px);transition:opacity 1.2s ease,transform 1.2s ease}#hint.show{opacity:1;transform:none}.hint-dot{width:7px;height:7px;margin-top:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);flex:none}#hint-b{color:#ffffffd1}#hotbar{position:absolute;right:calc(14px + var(--sr));bottom:calc(var(--nav-h) + 18px + var(--sb));display:flex;gap:4px;padding:8px 10px;border-radius:10px;background:#78879b47;pointer-events:auto}.slot{position:relative;width:44px;height:44px;display:grid;place-items:center;color:#3c4655}.slot svg{width:30px;height:30px;filter:drop-shadow(0 1px 1px rgba(255,255,255,.6))}.slot b{position:absolute;right:1px;bottom:-2px;font-size:11px;font-weight:500;color:#fff;text-shadow:0 1px 2px rgba(20,40,70,.7)}#navbar{position:absolute;left:50%;bottom:calc(8px + var(--sb));transform:translate(-50%);width:min(720px,calc(100vw - 16px));height:var(--nav-h);display:flex;align-items:center;justify-content:space-around;padding:0 10px;border-radius:16px;pointer-events:auto}.nav-sep{width:1px;height:18px;background:#5a6e874d}.nav-btn{width:42px;height:42px;display:grid;place-items:center;padding:0;border:0;background:none;color:var(--slate);cursor:pointer;border-radius:12px;-webkit-tap-highlight-color:transparent}.nav-btn svg{width:24px;height:24px}.nav-btn:hover{background:#ffffff59}.nav-btn.pulse{animation:navpulse .4s ease}.nav-center{width:50px;height:50px;color:#fff}.nav-center svg{width:32px;height:32px;color:#fff;filter:drop-shadow(0 0 4px var(--cyan)) drop-shadow(0 0 10px rgba(127,230,255,.8));animation:glow 2.6s ease-in-out infinite}.nav-center svg path:first-child{fill:#ffffff59;stroke:#fff}.nav-center svg path:last-child{fill:var(--cyan-strong)}#fps{position:absolute;left:50%;top:calc(50px + var(--st));transform:translate(-50%);font-size:11px;color:#fff;text-shadow:var(--shadow)}#touch{position:fixed;inset:0;z-index:5;touch-action:none}#touch-look{position:absolute;inset:0}#joystick{position:absolute;left:50%;bottom:calc(var(--nav-h) + 22px + var(--sb));width:var(--joy);height:var(--joy);margin-left:calc(var(--joy) / -2);border-radius:50%;touch-action:none;background:radial-gradient(circle,#96a0af47 0 58%,#aab4c36b);border:1px solid rgba(255,255,255,.55);box-shadow:0 8px 26px #283c5a2e,inset 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#stick{transition:transform .18s ease-out}#tbtns{position:absolute;right:calc(12px + var(--sr));bottom:calc(var(--nav-h) + 24px + var(--sb));display:flex;flex-direction:column-reverse;align-items:flex-end;gap:10px}.tbtn{width:58px;height:58px;border-radius:50%;padding:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;border:1px solid rgba(255,255,255,.6);color:var(--slate);background:#ffffff57;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 6px 18px #283c5a2e;font-family:inherit;touch-action:none;-webkit-tap-highlight-color:transparent;transition:transform .1s ease,background .2s ease,box-shadow .3s ease}.tbtn.down{transform:scale(.92);background:#ffffff8c}.tb-ico{font-size:17px;font-weight:600;line-height:1}.tb-lbl{font-size:9px;letter-spacing:.1em}.tbtn-use.ready{box-shadow:0 0 0 2px #7fe6ffcc,0 0 18px #7fe6ffb3;color:var(--cyan-deep)}body.touch #controls{display:none}body.touch #hotbar{bottom:calc(var(--nav-h) + var(--sb) + max(var(--joy) + 34px,216px))}body.touch #hint{max-width:calc(50vw - var(--joy) / 2 - 22px);letter-spacing:.04em;font-size:11px}body.touch #prompt{bottom:calc(var(--nav-h) + var(--joy) + 150px)}@media (max-width: 720px){#compass{display:none}#depth{width:200px}.depth-rule{width:80px}#comm{padding-right:14px}#avatar{width:50px;height:50px}#comm-name{font-size:17px}#mode-pill{top:calc(84px + var(--st))}#hotbar{gap:1px;padding:6px}.slot{width:38px;height:38px}.slot svg{width:26px;height:26px}.nav-btn{width:36px;height:36px}.nav-btn svg{width:21px;height:21px}#toast{font-size:13px;letter-spacing:.2em}#prompt{font-size:12px}}@media (max-width: 380px){.nav-sep{display:none}#depth{width:170px}#loc-desc{font-size:10px}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes blink{0%,to{opacity:.2}50%{opacity:1}}@keyframes wave{0%{transform:scaleY(.35)}to{transform:scaleY(1)}}@keyframes fadein{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}@keyframes poi{0%{box-shadow:0 0 10px var(--cyan),0 0 #7fe6ff80}to{box-shadow:0 0 10px var(--cyan),0 0 0 12px #7fe6ff00}}@keyframes glow{0%,to{opacity:.85}50%{opacity:1}}@keyframes navpulse{0%{transform:scale(1)}40%{transform:scale(.86)}to{transform:scale(1)}}#splash{position:fixed;inset:0;z-index:20;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at center,#ffffff59,#a0c8eb8c 60%,#78aadcbf);cursor:pointer;transition:opacity 1.2s ease;text-shadow:0 2px 12px rgba(40,80,130,.35)}#splash.fade{opacity:0;pointer-events:none}.splash-inner{text-align:center}.splash-title{font-size:clamp(48px,9vw,112px);font-weight:200;letter-spacing:.45em;margin-right:-.45em;font-family:Didot,"Bodoni 72",Times New Roman,serif}.splash-sub{font-size:16px;letter-spacing:1.2em;margin-right:-1.2em;margin-top:6px;color:var(--ink-dim)}.splash-line{width:160px;height:1px;background:var(--ink);margin:34px auto;opacity:.7}.splash-quote{font-size:15px;letter-spacing:.3em;font-weight:300}.splash-start{margin-top:60px;font-size:13px;letter-spacing:.3em;animation:breathe 2.4s ease-in-out infinite}.splash-keys{margin-top:18px;font-size:11px;letter-spacing:.12em;color:var(--ink-dim)}@keyframes breathe{0%,to{opacity:.35}50%{opacity:1}}#paused{position:fixed;inset:0;z-index:8;display:flex;flex-direction:column;gap:10px;align-items:center;justify-content:center;cursor:pointer;background:#78a5d24d;backdrop-filter:blur(2px);font-size:22px;letter-spacing:.4em;font-weight:300;text-shadow:var(--shadow)}#paused small{font-size:12px;letter-spacing:.3em;opacity:.8}