/* Quanta Lab — the look of a well-used lab instrument and the PC it was plugged into around
   2003: beige window chrome with blue title bars for the dialogs, dark bezels and green LCD
   readouts for anything that sits over the picture. */

:root {
  --face: #ece9d8;          /* window face */
  --face-2: #f6f4ea;
  --edge-hi: #ffffff;
  --edge-lo: #aca899;
  --edge-dk: #716f64;
  --ink: #1b1b17;
  --ink-2: #4b4a42;
  --blue: #0b4fb8;
  --blue-ink: #0046d5;
  --title-a: #3c7ad6;
  --title-b: #1650b4;
  --title-c: #0e3f99;
  --bezel: #23251f;
  --bezel-2: #33362e;
  --lcd-bg: #0c170d;
  --lcd: #8cff84;
  --amber: #ffb43c;
  --ui: Tahoma, Verdana, "Segoe UI", Geneva, "DejaVu Sans", sans-serif;
  --mono: "Lucida Console", "Courier New", "DejaVu Sans Mono", monospace;
  --hand: "Segoe Print", "Bradley Hand", "Comic Neue", "Marker Felt", cursive;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: #000;
  color: var(--ink);
  font: 12px/1.35 var(--ui);
  overflow: hidden;
  user-select: none;
}
body.cursor-hidden { cursor: none; }

canvas#c { position: fixed; inset: 0; width: 100%; height: 100%; display: block; background: #000; }

button { font: inherit; color: inherit; cursor: pointer; }
button:focus-visible { outline: 1px dotted #000; outline-offset: -4px; }
kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0 4px;
  font: 10px/16px var(--ui);
  text-align: center;
  color: var(--ink);
  background: linear-gradient(#fff, #e3e0d2);
  border: 1px solid var(--edge-lo);
  border-bottom-width: 2px;
  border-radius: 2px;
}

/* ---------- window chrome ---------- */
.window {
  position: relative;
  background: var(--face);
  border: 1px solid #0a3378;
  border-radius: 7px 7px 2px 2px;
  box-shadow: inset 1px 1px 0 var(--edge-hi), 3px 4px 0 rgba(0, 0, 0, 0.35), 0 12px 40px rgba(0, 0, 0, 0.5);
  overflow: visible;
}
.titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 4px 0 7px;
  color: #fff;
  font-weight: bold;
  font-size: 12px;
  text-shadow: 1px 1px 0 #0a246a;
  background: linear-gradient(180deg, #6b9fe8 0%, var(--title-a) 9%, var(--title-b) 45%, var(--title-c) 88%, #0a3378 100%);
  border-radius: 6px 6px 0 0;
}
.titlebar .tb-icon { width: 16px; height: 16px; flex: none; }
.titlebar h2 { margin: 0; font-size: 12px; font-weight: bold; flex: 1; }
.titlebar #heroTitle { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tb-btns { display: flex; gap: 2px; }
.tb-btns i, .tb-close {
  display: inline-grid;
  place-items: center;
  width: 21px;
  height: 21px;
  font: bold 13px/1 var(--ui);
  font-style: normal;
  color: #fff;
  border: 1px solid #fff;
  border-radius: 3px;
  background: linear-gradient(#4f8ef0, #1d5fd0);
  box-shadow: inset -1px -1px 0 rgba(0, 0, 0, 0.25);
}
.tb-btns i.x, .tb-close { background: linear-gradient(#e68a6c, #c9431c); }
.tb-close:hover { background: linear-gradient(#f3a185, #d8552c); }

.menubar {
  display: flex;
  gap: 2px;
  padding: 2px 4px;
  border-bottom: 1px solid var(--edge-lo);
  box-shadow: 0 1px 0 var(--edge-hi);
  color: var(--ink);
}
.menubar span { padding: 1px 6px; cursor: default; }
.menubar span:hover { background: #316ac5; color: #fff; }

.statusbar {
  display: flex;
  gap: 2px;
  padding: 2px;
  border-top: 1px solid var(--edge-lo);
  color: var(--ink-2);
  font-size: 11px;
}
.statusbar span { padding: 1px 6px; border: 1px solid; border-color: var(--edge-lo) var(--edge-hi) var(--edge-hi) var(--edge-lo); }
.statusbar span:first-child { flex: 1; }

.btn, .src, .chip {
  border: 1px solid #003c74;
  border-radius: 3px;
  background: linear-gradient(#ffffff, #f0efe7 40%, #e3e0d0 90%, #d6d2c0);
  color: var(--ink);
}
.btn:hover, .src:hover, .chip:hover { box-shadow: inset 0 0 0 2px #fbc65b, inset 0 -2px 0 2px #e5a12b; }
.btn:active, .src:active, .chip:active { background: linear-gradient(#d6d2c0, #e3e0d0 30%, #f0efe7); }
.btn { padding: 4px 14px; min-height: 23px; }
.btn.small { padding: 2px 10px; min-height: 21px; font-size: 11px; }

/* ---------- start screen ---------- */
.overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: safe center;   /* scrolls instead of clipping on short screens */
  overflow-y: auto;
  padding: 12px 0;
  z-index: 20;
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.015) 0 1px, transparent 1px 3px),
    radial-gradient(ellipse at 50% 40%, rgba(14, 40, 70, 0.7), rgba(0, 0, 0, 0.92));
  transition: opacity 0.35s ease, visibility 0.35s;
}
.overlay.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.hero-win { width: min(600px, calc(100vw - 24px)); }
.win-body { padding: 14px 16px 12px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo { width: 64px; height: 64px; image-rendering: auto; filter: drop-shadow(2px 2px 0 rgba(0, 0, 0, 0.25)); }
.brand h1 {
  margin: 0;
  font: bold 30px/1 Verdana, var(--ui);
  letter-spacing: -0.5px;
  color: #12357a;
  text-shadow: 1px 1px 0 #fff;
}
.brand h1 .lab {
  display: inline-block;
  margin-left: 5px;
  padding: 1px 4px 2px;
  font: bold 11px/1 var(--ui);
  letter-spacing: 1px;
  text-transform: uppercase;
  vertical-align: 6px;
  color: #fff;
  background: #c9431c;
  border-radius: 2px;
  transform: rotate(-4deg);
}
.model { margin-top: 4px; font: 10px var(--mono); color: var(--ink-2); letter-spacing: 0.3px; }
.tag { margin: 10px 0 10px; color: var(--ink-2); font-size: 13px; font-style: italic; }

fieldset.group, .panel-body section {
  margin: 0 0 10px;
  padding: 10px 10px 8px;
  border: 1px solid #d0d0bf;
  border-radius: 3px;
  box-shadow: 1px 1px 0 var(--edge-hi), inset 1px 1px 0 var(--edge-hi);
}
fieldset.group legend { padding: 0 4px; color: var(--blue-ink); }

.sources { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.src {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 8px;
  align-items: center;
  padding: 7px 9px;
  text-align: left;
}
.src .ch {
  grid-row: 1 / 3;
  padding: 3px 5px;
  font: bold 10px var(--mono);
  color: var(--lcd);
  background: var(--lcd-bg);
  border: 1px solid #000;
  border-radius: 2px;
  text-shadow: 0 0 4px rgba(140, 255, 132, 0.6);
}
.src strong { font-size: 12px; }
.src span:last-child { font-size: 11px; color: var(--ink-2); }
.src.primary { border-color: #0b3d91; box-shadow: inset 0 0 0 1px #7ea7e6; }

.tip {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 2px 0 8px;
  padding: 6px 8px;
  background: #ffffe1;
  border: 1px solid #b5b19a;
  color: var(--ink);
  font-size: 11.5px;
}
.tip > div { flex: 1; }
.tip-bulb { color: #f2c200; text-shadow: 0 0 3px #ffe45c, 0 0 0 #000; font-size: 13px; }

.hint { margin: 6px 0 0; color: var(--ink-2); font-size: 11.5px; }
.hint b { color: var(--ink); }
.warning {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  margin: 0 0 10px;
  padding: 7px 9px;
  background: #fff;
  border: 1px solid;
  border-color: var(--edge-dk) var(--edge-hi) var(--edge-hi) var(--edge-dk);
}
.warning .warn-icon { flex: none; width: 28px; height: 28px; margin-top: 1px; }
.warning p { margin: 0; font-size: 11.5px; color: var(--ink); }
.notice {
  margin: 0 0 8px;
  padding: 6px 8px;
  font-size: 11.5px;
  color: #5a1a0c;
  background: #fde9e2;
  border: 1px solid #c9431c;
}
.notice.hidden, .hint.hidden { display: none; }
.src.unavailable { opacity: 0.55; }
.src.unavailable .ch { color: #ff8a6e; text-shadow: none; }
.hint.small { font-size: 10.5px; line-height: 1.9; }
.err-head { margin: 0 0 6px; font-weight: bold; color: #b0301c; }

/* A calibration sticker someone stuck on the corner (its tilt changes per visit). */
.sticker {
  position: absolute;
  right: 14px;
  top: 40px;
  padding: 3px 7px 4px;
  font: bold 9px/1.25 var(--ui);
  letter-spacing: 0.8px;
  text-align: center;
  color: #4a3a05;
  background: #f7e27a;
  border: 1px solid #c8ae3c;
  box-shadow: 1px 2px 2px rgba(0, 0, 0, 0.25);
  transform: rotate(-2.5deg);
  pointer-events: none;
}
.sticker small { font: 9px/1.2 var(--hand); letter-spacing: 0; font-weight: normal; }

/* ---------- HUD: instrument bezels over the picture ---------- */
#hud { position: fixed; inset: 0; z-index: 10; pointer-events: none; transition: opacity 0.4s ease; }
#hud.hidden { opacity: 0; }
#hud > * { pointer-events: auto; }
#hud.hidden > * { pointer-events: none; }
.hud-top { position: absolute; top: 10px; left: 10px; right: 10px; display: flex; align-items: center; gap: 6px; }
.hud-top .spacer { flex: 1; pointer-events: none; }
.hud-bottom { position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%); display: flex; align-items: stretch; gap: 4px; }

.pill, .icon, .scene-name, #fps {
  color: #d9dccf;
  background: linear-gradient(var(--bezel-2), var(--bezel));
  border: 1px solid #000;
  border-radius: 3px;
  box-shadow: inset 1px 1px 0 rgba(255, 255, 255, 0.12), inset -1px -1px 0 rgba(0, 0, 0, 0.5), 1px 1px 0 rgba(0, 0, 0, 0.4);
}
.pill { display: inline-flex; align-items: center; gap: 7px; height: 28px; padding: 0 4px 0 9px; white-space: nowrap; font-size: 11.5px; }
.pill .pill-key { font: bold 9px var(--ui); letter-spacing: 1px; color: #8b8f80; }
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: #3a120f; box-shadow: inset 0 0 0 1px #000; }
.pill.live .dot { background: #63ff4f; box-shadow: 0 0 6px #63ff4f, inset 0 0 0 1px #1b5a10; }
.pill .link {
  padding: 2px 7px;
  font-size: 11px;
  color: var(--ink);
  background: linear-gradient(#f4f2e8, #d6d2c0);
  border: 1px solid #000;
  border-radius: 2px;
}
.pill .link:hover { background: linear-gradient(#fff, #e6e2d0); }
.pill.lcd {
  min-width: 92px;
  justify-content: center;
  padding: 0 10px;
  font: 13px var(--mono);
  color: var(--lcd);
  background: var(--lcd-bg);
  box-shadow: inset 2px 2px 3px rgba(0, 0, 0, 0.9), 0 0 0 2px var(--bezel), 0 0 0 3px #000;
  text-shadow: 0 0 5px rgba(140, 255, 132, 0.7);
  letter-spacing: 1px;
}

.icon {
  width: 30px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  font-size: 11px;
}
.icon:hover { color: #fff; background: linear-gradient(#41443a, #2b2d27); }
.icon:active { box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.8); }
.icon svg { width: 16px; height: 16px; }

.scene-name { display: flex; flex-direction: column; align-items: center; min-width: 250px; padding: 5px 12px 6px; }
.scene-row { display: flex; align-items: center; gap: 9px; }
#sceneIndex {
  padding: 1px 5px;
  font: 11px var(--mono);
  color: var(--amber);
  background: #1a1206;
  border: 1px solid #000;
  text-shadow: 0 0 4px rgba(255, 180, 60, 0.7);
}
#sceneName { font: bold 12px var(--ui); letter-spacing: 1.5px; text-transform: uppercase; color: #f1f2ea; }
#sceneBlurb { margin-top: 2px; font-size: 11px; color: #9a9e8f; max-width: 380px; text-align: center; transition: opacity 0.5s; }
#sceneBlurb:empty { display: none; }

#fps { position: absolute; right: 10px; bottom: 12px; padding: 3px 7px; font: 10px var(--mono); color: #9fd89a; opacity: 0.85; }

/* ---------- setup window ---------- */
#panel {
  position: fixed;
  top: 8px;
  right: 8px;
  bottom: 8px;
  width: min(360px, calc(100vw - 16px));
  z-index: 15;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, opacity 0.2s;
}
#panel.hidden { transform: translateX(calc(100% + 20px)); opacity: 0; pointer-events: none; }
#panel h3 {
  display: inline-block;
  margin: -17px 0 6px -4px;
  padding: 0 4px;
  font-size: 11.5px;
  font-weight: normal;
  color: var(--blue-ink);
  background: var(--face);
}
.panel-body { flex: 1; overflow-y: auto; padding: 16px 10px 6px; }
.panel-body section { margin-bottom: 16px; }
#panel footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-top: 1px solid var(--edge-lo);
  box-shadow: inset 0 1px 0 var(--edge-hi);
}
.foot-note { flex: 1; font-size: 10.5px; color: var(--ink-2); font-style: italic; }
.h3-note { color: var(--ink-2); margin-left: 4px; font-size: 10.5px; }

.chips { display: flex; flex-wrap: wrap; gap: 3px; margin-bottom: 8px; }
.chip { padding: 2px 7px; font-size: 11px; }
.chip.active {
  color: #fff;
  border-color: #0a246a;
  background: linear-gradient(#3a72d8, #1b4fa6);
  box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.45);
}
.chip.broken { opacity: 0.45; text-decoration: line-through; }

.swatches { display: flex; flex-wrap: wrap; gap: 5px; }
.swatch {
  display: flex;
  width: 42px;
  height: 22px;
  padding: 0;
  overflow: hidden;
  border: 1px solid #000;
  box-shadow: 1px 1px 0 var(--edge-hi), -1px -1px 0 var(--edge-lo);
}
.swatch span { flex: 1; }
.swatch.active { outline: 1px dotted #000; outline-offset: 2px; box-shadow: 0 0 0 2px var(--blue); }
.swatch.random { position: relative; }
.swatch.random i { position: absolute; inset: 0; display: grid; place-items: center; font: bold 12px var(--ui); font-style: normal; color: #fff; text-shadow: 1px 1px 0 #000; }

.btn-row { display: flex; gap: 6px; margin-bottom: 6px; }

.row { display: flex; align-items: center; gap: 7px; margin: 6px 0; font-size: 11.5px; }
.row.check { cursor: pointer; }
.row.check input {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 13px;
  height: 13px;
  margin: 0;
  background: linear-gradient(135deg, #dcdcd6, #fff);
  border: 1px solid #1c5180;
}
.row.check input:checked {
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 13 13'%3E%3Cpath d='M3 6.5l2.3 2.3L10 4' fill='none' stroke='%2321a121' stroke-width='2'/%3E%3C/svg%3E") center / 11px no-repeat,
    linear-gradient(135deg, #dcdcd6, #fff);
}

.slider { display: grid; grid-template-columns: 1fr auto; align-items: center; row-gap: 2px; margin: 6px 0 9px; }
.slider label { font-size: 11.5px; }
.slider output {
  min-width: 56px;
  padding: 0 4px;
  font: 10.5px/16px var(--mono);
  text-align: right;
  background: #fff;
  border: 1px solid;
  border-color: var(--edge-dk) var(--edge-hi) var(--edge-hi) var(--edge-dk);
}
.slider input[type=range] {
  grid-column: 1 / -1;
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 22px;
  margin: 0;
  background: transparent;
}
.slider input[type=range]::-webkit-slider-runnable-track {
  height: 4px;
  background: #f3f2ea;
  border: 1px solid;
  border-color: var(--edge-dk) var(--edge-hi) var(--edge-hi) var(--edge-dk);
}
.slider input[type=range]::-moz-range-track {
  height: 4px;
  background: #f3f2ea;
  border: 1px solid;
  border-color: var(--edge-dk) var(--edge-hi) var(--edge-hi) var(--edge-dk);
}
.slider input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 11px;
  height: 19px;
  margin-top: -9px;
  border: 1px solid #1f4b8f;
  border-radius: 2px 2px 5px 5px;
  background: linear-gradient(90deg, #f8f8f2, #d8d6c6);
  box-shadow: inset 0 -3px 0 #2eae2e;
}
.slider input[type=range]::-moz-range-thumb {
  width: 9px;
  height: 17px;
  border: 1px solid #1f4b8f;
  border-radius: 2px 2px 5px 5px;
  background: linear-gradient(90deg, #f8f8f2, #d8d6c6);
  box-shadow: inset 0 -3px 0 #2eae2e;
}
.slider input[type=range]:hover::-webkit-slider-thumb { box-shadow: inset 0 -3px 0 #f5a623; }
#sceneParamsSection .empty { color: var(--ink-2); font-size: 11.5px; font-style: italic; }

.panel-body::-webkit-scrollbar { width: 16px; }
.panel-body::-webkit-scrollbar-track { background: #f4f3ee; border-left: 1px solid #e3e1d6; }
.panel-body::-webkit-scrollbar-thumb { background: linear-gradient(90deg, #c8d7f8, #b4c8f0); border: 1px solid #8ea6d9; border-radius: 3px; }

/* ---------- toast (a balloon tooltip) and drop target ---------- */
#toast {
  position: fixed;
  left: 50%;
  top: 50px;
  transform: translateX(-50%);
  z-index: 30;
  max-width: min(460px, calc(100vw - 24px));
  padding: 7px 11px 8px;
  font-size: 11.5px;
  color: #000;
  background: #ffffe1;
  border: 1px solid #000;
  border-radius: 6px;
  box-shadow: 2px 3px 4px rgba(0, 0, 0, 0.35);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
#toast.hidden { opacity: 0; transform: translate(-50%, -6px); }
#toast.error { border-color: #a01010; }
#toast.error::before { content: "Error  "; font-weight: bold; color: #a01010; }

#dropHint {
  position: fixed;
  inset: 14px;
  z-index: 40;
  display: grid;
  place-items: center;
  border: 2px dashed #ece9d8;
  background: rgba(0, 0, 0, 0.45);
  pointer-events: none;
}
#dropHint span { padding: 8px 14px; color: var(--ink); background: var(--face); border: 1px solid #000; box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.4); }
#dropHint.hidden { display: none; }

@media (max-width: 560px) {
  .sources { grid-template-columns: 1fr; }
  .brand h1 { font-size: 24px; }
  .sticker { display: none; }
  .menubar { display: none; }
  .scene-name { min-width: 170px; }
  #sceneBlurb { display: none; }
  .hint.small.keys { display: none; }
}