:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  --ink: #f6f8f5;
  --muted: rgba(246, 248, 245, .63);
  --line: rgba(255, 255, 255, .19);
  --accent: #d8f2cd;
}

* { box-sizing: border-box; }

html, body { width: 100%; height: 100%; margin: 0; }

body { background: #101513; color: var(--ink); overflow: hidden; }

button, input { font: inherit; }
button { cursor: pointer; }

.app-shell { position: relative; width: 100%; height: 100%; min-height: 560px; overflow: hidden; isolation: isolate; }
.viewer, .viewer-shade { position: absolute; inset: 0; }
.viewer { background: #171d19; }
.viewer-shade { pointer-events: none; background: linear-gradient(180deg, rgba(7, 13, 10, .36) 0%, transparent 26%, transparent 58%, rgba(5, 10, 8, .34) 100%); }
.psv-container { --psv-background: #171d19; }
.psv-navbar { display: none !important; }

.glass {
  background: linear-gradient(140deg, rgba(255,255,255,.21), rgba(255,255,255,.11) 38%, rgba(255,255,255,.07));
  border: 1px solid rgba(255,255,255,.3);
  box-shadow: 0 16px 55px rgba(0,0,0,.17), inset 0 1px 0 rgba(255,255,255,.2);
  -webkit-backdrop-filter: blur(30px) saturate(155%);
  backdrop-filter: blur(30px) saturate(155%);
}

.topbar { position: absolute; z-index: 3; top: 24px; left: 28px; right: 28px; min-height: 70px; padding: 12px 14px 12px 22px; border-radius: 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; font-size: 25px; font-weight: 650; letter-spacing: -.075em; }
.brand-mark { display: grid; place-items: center; width: 31px; height: 31px; }
.brand-mark svg { width: 30px; height: 30px; }
.brand-dot { color: var(--accent); }
.topbar-actions { display: flex; align-items: center; gap: 25px; }
.topbar-kicker { font-size: 10px; letter-spacing: .17em; font-weight: 720; color: rgba(255,255,255,.77); white-space: nowrap; }
.kicker-divider { opacity: .55; padding: 0 6px; }
.upload-button { display: inline-flex; justify-content: center; align-items: center; gap: 10px; min-height: 44px; padding: 0 17px; border-radius: 14px; color: #192219; background: var(--accent); font-size: 12px; font-weight: 720; letter-spacing: .01em; cursor: pointer; transition: background .2s, transform .2s; white-space: nowrap; }
.upload-button:hover { background: #edffe4; transform: translateY(-1px); }
.upload-button:focus-within { outline: 2px solid white; outline-offset: 3px; }
.upload-button svg { width: 17px; height: 17px; }

.scene-info { position: absolute; z-index: 2; top: 122px; left: 28px; width: min(350px, calc(100vw - 56px)); padding: 25px 27px 24px; border-radius: 24px; }
.eyebrow { color: rgba(255,255,255,.75); font-size: 10px; font-weight: 750; letter-spacing: .18em; }
.live-dot, .save-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 11px rgba(216,242,205,.6); vertical-align: 1px; }
.live-dot { margin-right: 8px; }
.scene-info h1 { margin: 16px 0 13px; font-size: clamp(24px, 3vw, 33px); font-weight: 560; letter-spacing: -.055em; line-height: 1.05; overflow-wrap: anywhere; }
.scene-meta { display: flex; align-items: center; gap: 11px; color: rgba(255,255,255,.72); font-size: 11px; letter-spacing: .035em; }
#scene-file { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.meta-separator { flex: none; width: 3px; height: 3px; border-radius: 50%; background: rgba(255,255,255,.55); }
.scene-info p { margin: 17px 0 0; color: rgba(255,255,255,.81); font-size: 12px; line-height: 1.55; }

.bottom-area { position: absolute; z-index: 2; bottom: 28px; left: 28px; right: 28px; display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; pointer-events: none; }
.bottom-area > * { pointer-events: auto; }
.hint { display: inline-flex; align-items: center; gap: 11px; padding: 14px 17px; border-radius: 16px; font-size: 10px; font-weight: 750; letter-spacing: .14em; white-space: nowrap; color: rgba(255,255,255,.85); }
.hint svg { width: 16px; height: 16px; }

.controls { width: 325px; padding: 20px 21px 16px; border-radius: 25px; }
.controls-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 21px; }
.controls-heading h2 { margin: 8px 0 0; font-size: 21px; font-weight: 560; letter-spacing: -.045em; }
.icon-button { display: grid; place-items: center; width: 35px; height: 35px; flex: none; border: 1px solid rgba(255,255,255,.25); border-radius: 11px; color: var(--ink); background: rgba(255,255,255,.11); transition: background .2s; }
.icon-button:hover { background: rgba(255,255,255,.27); }
.icon-button svg { width: 16px; height: 16px; }
.control-row { margin-bottom: 17px; }
.control-row-last { margin-bottom: 20px; }
.control-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 9px; }
.control-label label { font-size: 12px; font-weight: 550; color: rgba(255,255,255,.88); }
.control-label output { min-width: 43px; text-align: right; font-size: 13px; font-weight: 670; font-variant-numeric: tabular-nums; }
input[type="range"] { display: block; width: 100%; height: 18px; margin: 0; padding: 0; appearance: none; -webkit-appearance: none; background: transparent; cursor: pointer; }
input[type="range"]::-webkit-slider-runnable-track { height: 3px; border-radius: 4px; background: linear-gradient(to right, var(--accent) 0 var(--fill, 50%), rgba(255,255,255,.33) var(--fill, 50%) 100%); }
input[type="range"]::-moz-range-track { height: 3px; border-radius: 4px; background: rgba(255,255,255,.33); }
input[type="range"]::-moz-range-progress { height: 3px; border-radius: 4px; background: var(--accent); }
input[type="range"]::-webkit-slider-thumb { width: 15px; height: 15px; margin-top: -6px; appearance: none; -webkit-appearance: none; border: 3px solid #eefbea; border-radius: 50%; background: #647e64; box-shadow: 0 1px 9px rgba(0,0,0,.33); }
input[type="range"]::-moz-range-thumb { width: 9px; height: 9px; border: 3px solid #eefbea; border-radius: 50%; background: #647e64; box-shadow: 0 1px 9px rgba(0,0,0,.33); }
.range-ends { display: flex; justify-content: space-between; margin-top: 1px; font-size: 9px; letter-spacing: .12em; font-weight: 700; color: rgba(255,255,255,.55); }
.controls-footer { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.19); }
.save-indicator { display: flex; align-items: center; gap: 7px; font-size: 10px; color: rgba(255,255,255,.7); white-space: nowrap; }
.save-dot { width: 5px; height: 5px; box-shadow: none; }
.footer-actions { display: flex; gap: 12px; }
.text-button { padding: 0; border: 0; color: var(--ink); background: transparent; font-size: 10px; font-weight: 700; white-space: nowrap; }
.text-button:hover { text-decoration: underline; }

.loading { position: absolute; z-index: 4; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 17px; color: rgba(255,255,255,.85); background: #151c18; font-size: 12px; letter-spacing: .08em; transition: opacity .55s ease, visibility .55s ease; }
.loading.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loading-orbit { width: 34px; height: 34px; border: 1.5px solid rgba(255,255,255,.18); border-top-color: var(--accent); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.drop-overlay { position: absolute; z-index: 6; inset: 16px; display: grid; place-items: center; border: 2px dashed var(--accent); border-radius: 25px; color: white; background: rgba(19,28,21,.75); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); font-size: clamp(20px, 4vw, 36px); font-weight: 550; letter-spacing: -.04em; pointer-events: none; }
.drop-overlay[hidden] { display: none; }
.toast { position: absolute; z-index: 7; top: 108px; right: 28px; max-width: min(340px, calc(100vw - 36px)); padding: 13px 17px; border-radius: 15px; font-size: 12px; line-height: 1.4; opacity: 0; transform: translateY(-8px); pointer-events: none; transition: opacity .25s, transform .25s; }
.toast.is-visible { opacity: 1; transform: translateY(0); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

@media (max-width: 760px) {
  .topbar { top: 12px; left: 12px; right: 12px; min-height: 60px; padding: 9px 10px 9px 16px; border-radius: 20px; }
  .brand { font-size: 23px; }
  .brand-mark, .brand-mark svg { width: 27px; height: 27px; }
  .topbar-kicker { display: none; }
  .upload-button { min-height: 40px; padding: 0 12px; font-size: 11px; }
  .scene-info { top: 84px; left: 12px; width: min(275px, calc(100vw - 24px)); padding: 17px 19px; border-radius: 20px; }
  .scene-info h1 { margin: 11px 0 9px; font-size: 22px; }
  .scene-info p { display: none; }
  .bottom-area { left: 12px; right: 12px; bottom: 12px; justify-content: center; }
  .hint { display: none; }
  .controls { width: min(100%, 420px); padding: 16px 18px 13px; border-radius: 21px; }
  .controls-heading { margin-bottom: 12px; }
  .controls-heading h2 { font-size: 19px; }
  .control-row { margin-bottom: 10px; }
  .control-row-last { margin-bottom: 11px; }
  .toast { top: 82px; right: 12px; }
}

@media (max-height: 680px) and (min-width: 761px) {
  .scene-info { padding: 18px 20px; }
  .scene-info p { display: none; }
  .controls { padding-top: 14px; }
  .controls-heading { margin-bottom: 10px; }
  .control-row { margin-bottom: 9px; }
  .control-row-last { margin-bottom: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}