:root {
  --ink: #f7efe2;
  --muted: #c8c1b6;
  --bronze: #b8804d;
  --green: #7fd0a2;
  --amber: #ffd28a;
  --blue: #8fc7ff;
  --panel: rgba(17, 24, 28, .68);
  --line: rgba(255, 255, 255, .15);
  --shadow: rgba(0, 0, 0, .38);
}

* { box-sizing: border-box; }
html, body { margin: 0; width: 100%; height: 100%; overflow: hidden; background: #17242b; color: var(--ink); font-family: "Segoe UI", Arial, sans-serif; }
body { touch-action: none; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button { color: inherit; }
#world { width: 100%; height: 100%; display: block; outline: none; }
.glass { background: var(--panel); border: 1px solid var(--line); box-shadow: 0 14px 44px var(--shadow); backdrop-filter: blur(13px) saturate(1.2); -webkit-backdrop-filter: blur(13px) saturate(1.2); }

#brand { position: fixed; z-index: 12; top: max(18px, env(safe-area-inset-top)); left: 22px; pointer-events: none; letter-spacing: .18em; font-size: 14px; font-weight: 700; text-shadow: 0 2px 16px rgba(0,0,0,.5); }
#brand small { display: block; margin-top: 4px; font-size: 10px; font-weight: 500; letter-spacing: .11em; color: var(--muted); }

#telemetry { position: fixed; z-index: 12; top: max(18px, env(safe-area-inset-top)); left: 50%; transform: translateX(-50%); display: flex; border-radius: 13px; overflow: hidden; }
#telemetry div { min-width: 112px; padding: 9px 14px 10px; text-align: center; border-right: 1px solid var(--line); }
#telemetry div:last-child { border-right: 0; }
#telemetry small { display: block; color: var(--muted); font-size: 8px; letter-spacing: .18em; }
#telemetry b { display: block; margin-top: 3px; font-size: 11px; letter-spacing: .07em; white-space: nowrap; }

.icon-button { position: fixed; z-index: 14; top: max(18px, env(safe-area-inset-top)); right: 20px; width: 40px; height: 40px; border-radius: 50%; cursor: pointer; }
#info { position: fixed; z-index: 18; top: 70px; right: 20px; width: min(400px, calc(100vw - 32px)); max-height: calc(100dvh - 150px); overflow-y: auto; padding: 22px; border-radius: 16px; opacity: 0; transform: translateX(24px); pointer-events: none; transition: .25s ease; }
#info.open { opacity: 1; transform: translateX(0); pointer-events: auto; }
#info-close { position: absolute; right: 12px; top: 8px; border: 0; background: transparent; font-size: 28px; cursor: pointer; }
#info h1 { margin: 0 30px 8px 0; font-size: 18px; }
#info p { margin: 0 0 16px; color: var(--muted); font-size: 12px; line-height: 1.55; }
#info dl { margin: 0 0 14px; }
#info dl div { display: flex; justify-content: space-between; gap: 18px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 12px; }
#info dt { color: var(--muted); }
#info dd { margin: 0; font-weight: 700; }
#info .pass { color: var(--green); }
#info .working { color: var(--amber); }
#info .open { color: var(--blue); }
#info .fine { font-size: 10px; margin: 0; }
#info h2 { font-size: 15px; margin: 22px 0 12px; }
.diagnostic-field { display: block; font-size: 12px; margin: 12px 0; }
.diagnostic-field select { width: 100%; padding: 9px; margin-top: 5px; color: #eee7dc; background: #21323c; border: 1px solid var(--line); border-radius: 6px; }
#benchmark { width: 100%; padding: 12px; margin: 14px 0 10px; background: #815e43; border: 1px solid #b58c67; border-radius: 8px; cursor: pointer; }
#benchmark:disabled { opacity: .55; cursor: progress; }
#diagnostic-json { max-height: 220px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 9px; line-height: 1.4; }

#crosshair { position: fixed; z-index: 8; left: 50%; top: 50%; width: 5px; height: 5px; margin: -2px; border: 1px solid rgba(255,255,255,.8); border-radius: 50%; box-shadow: 0 0 9px rgba(0,0,0,.7); pointer-events: none; }
#hint { position: fixed; z-index: 11; left: 50%; bottom: 102px; transform: translateX(-50%); padding: 9px 15px; border-radius: 11px; color: var(--muted); font-size: 11px; white-space: nowrap; transition: opacity .6s; pointer-events: none; }
#hint.hidden { opacity: 0; }

#route-controls { position: fixed; z-index: 12; left: 50%; bottom: max(20px, env(safe-area-inset-bottom)); transform: translateX(-50%); display: flex; height: 66px; border-radius: 16px; overflow: hidden; }
#route-controls button { border: 0; border-right: 1px solid var(--line); background: transparent; cursor: pointer; }
#route-controls button:last-child { border-right: 0; }
#previous, #next { width: 56px; font-size: 30px; }
#guide { width: 190px; padding: 7px 14px; }
#guide span { display: block; font-size: 8px; letter-spacing: .18em; color: var(--muted); }
#guide b { display: block; margin-top: 5px; font-size: 11px; letter-spacing: .08em; }
#route-controls button:hover, #route-controls button:focus-visible { background: rgba(255,255,255,.08); }

#lift-action { position: fixed; z-index: 14; left: 50%; top: 27%; transform: translateX(-50%); min-width: 230px; padding: 14px 20px; border-radius: 14px; cursor: pointer; animation: lift-in .25s ease; }
#lift-action span { font-size: 20px; color: var(--bronze); margin-right: 9px; }
#lift-action b { font-size: 12px; letter-spacing: .09em; }
#lift-action small { display: block; margin-top: 4px; color: var(--muted); font-size: 8px; letter-spacing: .15em; }
@keyframes lift-in { from { opacity: 0; transform: translateX(-50%) translateY(8px); } }

#light-control { position: fixed; z-index: 12; right: 20px; bottom: max(22px, env(safe-area-inset-bottom)); display: flex; align-items: center; gap: 10px; padding: 10px 13px; border-radius: 12px; }
#light-control span { font-size: 8px; letter-spacing: .14em; color: var(--muted); }
#light-control input { width: 90px; accent-color: var(--bronze); }

#touch-ui { display: none; position: fixed; inset: 0; z-index: 7; pointer-events: none; }
.touch-pad { position: absolute; bottom: 96px; width: 112px; height: 112px; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; background: rgba(14,20,24,.22); opacity: .55; }
#move-pad { left: 22px; }
#look-pad { right: 22px; }
.touch-pad i { position: absolute; left: 50%; top: 50%; width: 38px; height: 38px; margin: -19px; border-radius: 50%; background: rgba(184,128,77,.6); transform: translate(var(--x, 0px), var(--y, 0px)); }

#fade { position: fixed; z-index: 25; inset: 0; background: #0b1013; opacity: 0; pointer-events: none; transition: opacity .22s linear; }
#fade.on { opacity: 1; }
#boot { position: fixed; z-index: 30; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 11px; background: radial-gradient(circle at 50% 42%, #273b45, #10171b 65%); transition: opacity .6s; }
#boot.done { opacity: 0; pointer-events: none; }
#boot strong { font-size: 18px; letter-spacing: .24em; }
#boot span { color: var(--muted); font-size: 11px; letter-spacing: .08em; }
#boot small { color: #91a8b2; font-size: 8px; letter-spacing: .16em; }
.loader { width: 210px; height: 2px; margin: 9px 0; overflow: hidden; background: rgba(255,255,255,.12); }
.loader i { display: block; width: 38%; height: 100%; background: var(--bronze); animation: sweep 1.05s ease-in-out infinite; }
@keyframes sweep { from { transform: translateX(-110%); } to { transform: translateX(370%); } }

@media (pointer: coarse), (max-width: 760px) {
  #touch-ui { display: block; }
  #telemetry { top: auto; bottom: 177px; }
  #telemetry div { min-width: 84px; padding: 7px 8px; }
  #telemetry div:nth-child(2) { min-width: 108px; }
  #brand { font-size: 12px; left: 16px; }
  .icon-button { right: 14px; }
  #light-control { top: 68px; right: 14px; bottom: auto; }
  #route-controls { bottom: max(16px, env(safe-area-inset-bottom)); }
  #route-controls { height: 60px; }
  #guide { width: 160px; }
  #hint { bottom: 245px; }
  #lift-action { top: 19%; }
}

@media (max-width: 420px) {
  #light-control span { display: none; }
  #light-control input { width: 76px; }
  #telemetry div:first-child { min-width: 96px; }
  #previous, #next { width: 48px; }
  #guide { width: 150px; }
}

/* Renderer-independent UI compositing ablation. Scene pixels/materials stay intact. */
.k340-flat-ui .glass { backdrop-filter:none; -webkit-backdrop-filter:none; }

/* ---------- successor additions (Fable 5.1, 2026-09-06) ---------- */
#top-tools { position: fixed; z-index: 14; top: max(18px, env(safe-area-inset-top)); right: 20px; display: flex; gap: 8px; }
.tool { min-width: 44px; height: 40px; padding: 0 12px; border-radius: 12px; cursor: pointer; font-size: 10px; letter-spacing: .14em; font-weight: 700; }
.tool.icon-button { position: static; width: 40px; padding: 0; border-radius: 50%; }
.tool:hover, .tool:focus-visible { background: rgba(255,255,255,.12); }
#info { top: 70px; }
#light-control { position: static; display: block; margin: 12px 0; padding: 0; }
#light-control input { width: 100%; }
#lift-action small { min-height: 10px; }
.overlay { position: fixed; z-index: 22; left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(460px, calc(100vw - 28px)); max-height: calc(100dvh - 40px); overflow-y: auto; padding: 22px; border-radius: 16px; }
.overlay h2 { margin: 0 0 12px; font-size: 17px; letter-spacing: .04em; }
.overlay label { display: block; margin: 10px 0; font-size: 12px; color: var(--muted); }
.overlay label.row { display: flex; align-items: center; gap: 10px; }
.overlay input[type=range] { width: 100%; accent-color: var(--bronze); }
.overlay input[type=checkbox] { width: 20px; height: 20px; accent-color: var(--bronze); }
.overlay select { width: 100%; padding: 9px; margin-top: 5px; color: #eee7dc; background: #21323c; border: 1px solid var(--line); border-radius: 6px; }
.overlay output { float: right; color: var(--ink); }
.overlay .buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.overlay button, #photo-bar button { min-height: 44px; padding: 10px 14px; background: #815e43; border: 1px solid #b58c67; border-radius: 8px; cursor: pointer; font-size: 12px; }
.overlay button:hover, .overlay button:focus-visible { background: #97704f; }
#guide-overlay p { font-size: 13px; line-height: 1.55; color: var(--muted); }
#guide-dismiss { width: 100%; margin-top: 8px; }
#map-canvas { width: 100%; height: auto; display: block; border-radius: 10px; background: #10171b; }
.dest-list { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; max-height: 190px; overflow-y: auto; margin-top: 8px; }
.dest-list button { min-height: 40px; padding: 6px 8px; font-size: 11px; text-align: left; background: rgba(255,255,255,.06); border: 1px solid var(--line); border-radius: 8px; cursor: pointer; }
.dest-list button:hover { background: rgba(255,255,255,.12); }
#photo-bar { position: fixed; z-index: 23; left: 50%; bottom: max(18px, env(safe-area-inset-bottom)); transform: translateX(-50%); display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 12px; }
#photo-bar label { font-size: 10px; letter-spacing: .12em; color: var(--muted); display: flex; align-items: center; gap: 8px; }
#photo-bar input { width: 110px; accent-color: var(--bronze); }
#photo-status { font-size: 10px; max-width: 220px; }
body.hide-ui .ui { display: none !important; }
body.hide-ui #info { display: none; }
#context-note { position: fixed; z-index: 40; left: 50%; top: 50%; transform: translate(-50%, -50%); padding: 16px 20px; border-radius: 12px; font-size: 13px; }
#context-note button { margin-left: 10px; min-height: 40px; padding: 8px 12px; background: #815e43; border: 1px solid #b58c67; border-radius: 8px; cursor: pointer; }
#boot-retry { min-height: 44px; margin-top: 10px; padding: 10px 16px; background: #815e43; border: 1px solid #b58c67; border-radius: 8px; cursor: pointer; }
.loader i { animation: none; width: 0%; transition: width .3s; }
@media (pointer: coarse), (max-width: 760px) {
  #top-tools { right: 14px; gap: 6px; }
  .tool { min-width: 42px; height: 42px; padding: 0 8px; font-size: 9px; }
  #telemetry { bottom: 177px; }
  #photo-bar { bottom: 120px; flex-wrap: wrap; justify-content: center; max-width: calc(100vw - 28px); }
  #lift-action { top: 19%; }
}
@media (max-width: 520px) {
  #top-tools { flex-wrap: wrap; justify-content: flex-end; max-width: 60vw; }
  #preset-day, #preset-evening { display: none; }
}
#photo-bar[hidden], #top-tools[hidden], .overlay[hidden], #context-note[hidden], #lift-action[hidden], #boot-retry[hidden] { display: none !important; }

/* The settings and map panels can be taller than a 720p or short-landscape viewport. Keep their action row pinned to the
   bottom of the panel and give every overlay a corner close control, so no exit is ever below the fold. overlay-sticky-close */
.overlay { padding-bottom: 0; }
.overlay .buttons { position: sticky; bottom: 0; z-index: 2; margin: 14px 0 0; padding: 12px 0 16px; background: linear-gradient(to bottom, rgba(17,24,28,0), var(--panel) 22%); }
.overlay .corner-close { position: sticky; top: -22px; float: right; margin: -10px -8px 0 0; width: 38px; height: 38px; min-height: 38px; padding: 0; border-radius: 50%; font-size: 20px; line-height: 1; z-index: 3; }
#map-panel .dest-list { max-height: 34vh; }
@media (max-height: 460px) { .overlay { max-height: calc(100dvh - 16px); padding: 14px; } #map-panel .dest-list { max-height: 22vh; } #map-canvas { max-height: 34vh; width: auto; margin: 0 auto; } }