* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; overflow: hidden; overscroll-behavior: none; font: 14px/1.4 Calibri, "Segoe UI", Arial, sans-serif; color: #f5f5f1; background: #9cc8df; }
canvas { width: 100%; height: 100%; display: block; touch-action: none; opacity: 1; transition: opacity 1s ease, filter 1s ease, transform 1.6s cubic-bezier(.22, .76, .25, 1); }
body.loading-active canvas { opacity: 0; filter: brightness(.22) saturate(.55) contrast(1.2); transform: scale(1.025); }
#startup-cover { position: fixed; z-index: 19; inset: 0; pointer-events: none; background: #000; opacity: 1; visibility: visible; transition: opacity 2s cubic-bezier(.22,.72,.24,1), visibility 0s linear 2s; }
body.loading-active #startup-cover { opacity: 1; visibility: visible; transition: none; }
body:not(.loading-active) #startup-cover { opacity: 0; visibility: hidden; }
#scene-transition { position: fixed; z-index: 18; inset: 0; pointer-events: none; opacity: 0; visibility: hidden; background-color: #9cc8df; background-position: center; background-repeat: no-repeat; background-size: cover; transition: opacity .72s cubic-bezier(.22,.72,.24,1), visibility 0s linear .72s; }
#scene-transition.is-visible { opacity: 1; visibility: visible; transition: opacity .16s ease, visibility 0s; }
#zone-homeview-transition { position: fixed; z-index: 19; inset: 0; pointer-events: none; opacity: 0; visibility: hidden; background-color: #9cc8df; background-position: center; background-repeat: no-repeat; background-size: cover; will-change: opacity; }
#zone-homeview-transition.is-active { visibility: visible; }
#zone-transition-progress { position: absolute; left: 50%; top: 50%; min-width: 58px; padding: 7px 11px; transform: translate(-50%, -50%); border: 1px solid rgba(255,255,255,.34); border-radius: 999px; background: rgba(23,41,48,.28); color: #c8d7dc; box-shadow: 0 5px 18px rgba(11,25,30,.16); backdrop-filter: blur(9px) saturate(1.08); -webkit-backdrop-filter: blur(9px) saturate(1.08); font: inherit; font-size: 14px; line-height: 1.4; text-align: center; text-shadow: 0 1px 4px #172930; font-variant-numeric: tabular-nums; }
#scene-loader { position: fixed; z-index: 20; inset: 0; overflow: hidden; display: grid; place-items: center; isolation: isolate; pointer-events: none; background: #080b0f; color: #d9e4e7; }
#scene-loader[hidden] { display: none; }
.loader-glow { position: absolute; z-index: -3; inset: -25%; background: radial-gradient(circle at 48% 50%, rgba(44, 176, 183, .14), transparent 23%), radial-gradient(circle at 54% 52%, rgba(237, 12, 73, .09), transparent 17%); animation: loaderGlow 4s ease-in-out infinite alternate; }
.loader-particles { position: absolute; z-index: -2; left: 50%; top: 50%; width: min(86vw, 980px); aspect-ratio: 1.9; transform: translate(-50%, -50%) scale(.72); opacity: .34; background-image: radial-gradient(circle, rgba(255,255,255,.78) 0 1px, transparent 1.6px), radial-gradient(circle, rgba(45,177,184,.72) 0 1px, transparent 1.7px), radial-gradient(circle, rgba(239,13,74,.55) 0 .8px, transparent 1.6px); background-position: 0 0, 11px 7px, 19px 14px; background-size: 23px 19px, 29px 31px, 37px 27px; -webkit-mask-image: radial-gradient(ellipse at center, #000 0%, rgba(0,0,0,.8) 38%, transparent 72%); mask-image: radial-gradient(ellipse at center, #000 0%, rgba(0,0,0,.8) 38%, transparent 72%); animation: particleDrift 7s linear infinite; transition: opacity .55s ease, transform 1.8s cubic-bezier(.16,.84,.24,1), filter 1.4s ease; }
.loader-brand { display: flex; width: min(380px, calc(100vw - 48px)); flex-direction: column; align-items: center; transform: translateY(-2vh); transition: opacity .45s ease, transform .8s ease, filter .45s ease; }
.loader-brand img { display: block; width: min(330px, 78vw); height: auto; mix-blend-mode: screen; filter: invert(1) hue-rotate(180deg) brightness(1.08) drop-shadow(0 12px 34px rgba(0,0,0,.42)); }
#loading { width: min(292px, 72vw); margin-top: 32px; }
.loading-copy { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 10px; color: rgba(222, 233, 236, .68); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.loading-track { height: 2px; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,.11); }
#loading-fill { width: 1%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #2cb1b8, #f00d4a); box-shadow: 0 0 14px rgba(44,177,184,.58); transition: width .2s ease; }
.loader-signal { display: flex; height: 18px; align-items: center; gap: 5px; margin-top: 17px; }
.loader-signal i { display: block; width: 3px; height: 4px; border-radius: 2px; background: rgba(236,245,246,.8); animation: loaderSignal .9s ease-in-out infinite alternate; }
.loader-signal i:nth-child(2) { animation-delay: .16s; }
.loader-signal i:nth-child(3) { animation-delay: .32s; }
#scene-loader.is-preview { background: rgba(5, 8, 11, .78); }
#scene-loader.is-preview .loader-brand { opacity: 0; transform: translateY(-2vh) scale(.96); filter: blur(5px); }
#scene-loader.is-preview .loader-particles { opacity: .88; transform: translate(-50%, -50%) scale(1.15); filter: brightness(2.2) contrast(1.7); }
#scene-loader.is-revealing { animation: loaderExit 1.9s cubic-bezier(.22,.72,.24,1) forwards; }
#scene-loader.is-revealing .loader-particles { opacity: 0; transform: translate(-50%, -50%) scale(1.9); filter: brightness(3) blur(2px); }
#scene-loader.has-error .loader-signal { display: none; }
#scene-loader.has-error #loading-fill { background: #f00d4a; }
@keyframes loaderGlow { from { transform: scale(.9); opacity: .65; } to { transform: scale(1.14); opacity: 1; } }
@keyframes particleDrift { from { background-position: 0 0, 11px 7px, 19px 14px; } to { background-position: 46px 38px, -47px 69px, 93px -40px; } }
@keyframes loaderSignal { from { height: 4px; opacity: .28; } to { height: 14px; opacity: 1; } }
@keyframes loaderExit { 0% { opacity: 1; background-color: rgba(5,8,11,.78); } 38% { opacity: .74; background-color: rgba(5,8,11,.28); } 100% { opacity: 0; background-color: transparent; } }
#sky-artifact-mask { --horizon-y: 0px; position: fixed; z-index: 1; inset: 0 0 auto; width: 100vw; height: max(0px, calc(var(--horizon-y) - 1vh)); pointer-events: none; background: linear-gradient(to bottom, rgba(156, 200, 223, .99) 0%, rgba(158, 201, 223, .98) 68%, rgba(181, 213, 229, .9) 88%, rgba(210, 227, 235, 0) 100%); }
#horizon-haze { --horizon-y: 0px; position: fixed; z-index: 1; left: -3vw; top: calc(var(--horizon-y) - 6vh); width: 106vw; height: 16vh; min-height: 105px; max-height: 175px; pointer-events: none; background: linear-gradient(to bottom, rgba(205, 222, 231, 0) 0%, rgba(207, 224, 233, .12) 26%, rgba(216, 229, 236, .34) 52%, rgba(219, 231, 237, .18) 76%, rgba(219, 231, 237, 0) 100%); -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 30%, #000 68%, transparent 100%); mask-image: linear-gradient(to bottom, transparent 0%, #000 30%, #000 68%, transparent 100%); transform: translateZ(0); }
.building-hotspot { position: fixed; z-index: 2; left: 50%; top: 43%; width: 34px; height: 34px; padding: 0; transform: translate(-50%, -100%) rotate(-45deg); border: 2px solid rgba(255, 255, 255, .94); border-radius: 50% 50% 50% 0; background: #34464c; box-shadow: 0 4px 12px rgba(11, 25, 30, .38), 0 0 0 1px rgba(18, 37, 43, .28); cursor: pointer; opacity: 1; visibility: visible; transition: transform .18s ease, background .18s ease, box-shadow .18s ease, opacity .22s ease, visibility 0s linear; }
.building-hotspot::after { content: ""; position: absolute; left: 50%; top: 50%; width: 9px; height: 9px; transform: translate(-50%, -50%); border-radius: 50%; background: #fff; box-shadow: 0 0 0 2px rgba(255, 255, 255, .18); }
.building-hotspot:hover, .building-hotspot:focus-visible { transform: translate(-50%, -100%) rotate(-45deg) scale(1.12); background: #465b62; box-shadow: 0 6px 18px rgba(11, 25, 30, .46), 0 0 0 3px rgba(255, 255, 255, .18); outline: none; }
.building-hotspot.is-distant, .building-hotspot.is-active { opacity: 0; visibility: hidden; pointer-events: none; transition: transform .18s ease, background .18s ease, box-shadow .18s ease, opacity .22s ease, visibility 0s linear .22s; }
header { position: fixed; z-index: 2; top: 18px; left: 18px; display: flex; align-items: center; gap: 8px; padding: 0; }
.brand-restart { font: inherit; }
header .scene-back { gap: 8px; max-width: 0; padding-inline: 0; border-width: 0; opacity: 0; visibility: hidden; overflow: hidden; pointer-events: none; transform: translateX(-8px); transition: max-width .35s ease, padding .35s ease, opacity .28s ease, transform .35s ease, visibility 0s linear .35s, background-size .37s linear, color .27s ease; }
body.close-scene header .scene-back:not(:disabled) { max-width: 100px; padding-inline: 15px; border-width: 1px; opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(0); transition: max-width .35s ease, padding .35s ease, opacity .28s ease, transform .35s ease, visibility 0s, background-size .37s linear, color .27s ease; }
.scene-back-arrow { position: relative; display: block; width: 13px; height: 13px; border-left: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg); }
.scene-back-arrow::after { content: ""; position: absolute; left: -2px; bottom: -1px; width: 16px; height: 2px; border-radius: 2px; background: currentColor; transform: rotate(-45deg); transform-origin: left center; }
header span, aside { color: #c8d7dc; }
.actions { position: fixed; z-index: 2; top: 18px; right: 18px; display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.view-nav { position: fixed; z-index: 2; left: 50%; bottom: 18px; display: flex; gap: 16px; transform: translateX(-50%); }
button:not(.building-hotspot) { display: inline-flex; align-items: center; justify-content: center; border: 1px solid rgba(255,255,255,.9); border-radius: 999px; padding: 9px 16px; background-color: rgba(25, 43, 50, .34); background-image: linear-gradient(to top, rgba(255,255,255,.97) 0 50%, transparent 51%); background-position: center bottom; background-repeat: no-repeat; background-size: 100% 0%; color: #fff; box-shadow: 0 7px 22px rgba(0,0,0,.16); backdrop-filter: blur(12px) saturate(1.12); cursor: pointer; font: inherit; transition: background-size .37s linear, background-color .3s ease, color .27s ease, box-shadow .3s ease; }
button:not(.building-hotspot):hover, button:not(.building-hotspot):focus-visible { background-size: 100% 202%; color: #1f3036; box-shadow: 0 10px 28px rgba(0,0,0,.22); outline: none; }
button[aria-pressed="true"] { background-color: rgba(255,255,255,.97); background-image: none; color: #1f3036; border-color: #fff; }
button:disabled { opacity: .45; cursor: default; }
header .scene-back:disabled { max-width: 0; padding-inline: 0; border-width: 0; opacity: 0; visibility: hidden; }
#previous, #next, #masterplan-close { width: 48px; height: 48px; padding: 0; border-radius: 50%; }
#previous, #next { font-size: 0; }
#previous::before, #next::before { content: ""; display: block; width: 0; height: 0; }
#previous::before { border-top: 6px solid transparent; border-bottom: 6px solid transparent; border-right: 9px solid currentColor; }
#next::before { border-top: 6px solid transparent; border-bottom: 6px solid transparent; border-left: 9px solid currentColor; }
#status { position: fixed; z-index: 2; left: 20px; bottom: 20px; color: #c8d7dc; text-shadow: 0 1px 4px #172930; }
aside { position: fixed; z-index: 2; right: 20px; bottom: 20px; text-shadow: 0 1px 4px #172930; }
header, .actions, .view-nav, #status, aside, .building-hotspot { transition: opacity .45s ease; }
body.loading-active header, body.loading-active .actions, body.loading-active .view-nav, body.loading-active #status, body.loading-active aside, body.loading-active .building-hotspot { opacity: 0; pointer-events: none; }
body.startup-flight .building-hotspot { opacity: 0; visibility: hidden; pointer-events: none; }
#masterplan-overlay { position: fixed; z-index: 40; inset: 25px; overflow: visible; border: 1px solid rgba(255,255,255,.74); border-radius: 24px; background: #0b1115; box-shadow: 0 0 24px 12px rgba(4,10,14,.56), 0 18px 52px rgba(0,0,0,.34); opacity: 0; visibility: hidden; pointer-events: none; transform: scale(1.018); transition: opacity .7s ease, transform .9s cubic-bezier(.22,.72,.24,1), visibility 0s linear .9s; }
#masterplan-overlay.is-visible { opacity: 1; visibility: visible; pointer-events: auto; transform: scale(1); transition: opacity .7s ease, transform .9s cubic-bezier(.22,.72,.24,1), visibility 0s; }
#masterplan-frame { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; border-radius: inherit; background: #0b1115; opacity: 0; transition: opacity .55s ease; }
#masterplan-overlay.is-ready #masterplan-frame { opacity: 1; }
.masterplan-frame-loading { position: absolute; z-index: 0; left: 50%; top: 50%; transform: translate(-50%, -50%); color: rgba(226,237,240,.72); font-size: 13px; letter-spacing: .05em; }
#masterplan-overlay.is-ready .masterplan-frame-loading { opacity: 0; }
#masterplan-close { position: absolute; z-index: 2; top: 0; right: 0; display: grid; place-items: center; width: 48px; height: 48px; transform: translate(50%, -50%); font: 300 24px/1 Arial, sans-serif; }
@media (max-width: 720px) { header { top: 10px; left: 10px; } .actions { top: 10px; right: 10px; } header span, aside { display: none; } #status { left: 10px; bottom: 10px; } .view-nav { bottom: 10px; } #masterplan-overlay { inset: 25px; border-radius: 18px; } #masterplan-close { top: 0; right: 0; } .loader-brand { width: min(320px, calc(100vw - 36px)); } .loader-brand img { width: min(285px, 78vw); } #loading { margin-top: 25px; } }
@media (prefers-reduced-motion: reduce) { .loader-glow, .loader-particles, .loader-signal i { animation: none; } #scene-loader.is-revealing { animation-duration: .5s; } button:not(.building-hotspot), header { transition-duration: .01ms; } }