/* inspector.css — compact dark inspector chrome over a warm studio scene. */
:root {
  --bg: #141517;
  --bg-raise: #1b1d20;
  --bg-hover: #232629;
  --line: rgba(255, 255, 255, 0.07);
  --text: #c9ccd1;
  --text-dim: #83878e;
  --accent: #d8a656;
  --accent-soft: rgba(216, 166, 86, 0.16);
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --panel-w: 232px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }
body { font-family: var(--sans); background: #101113; color: var(--text); }

#app { position: fixed; inset: 0; }

#viewport { position: absolute; inset: 0; }
#gl { width: 100%; height: 100%; display: block; outline: none; }

/* ---------- top bar ---------- */
#topbar {
  position: absolute; top: 0; left: 0; right: 0;
  display: flex; align-items: center; gap: 14px;
  padding: 10px 14px;
  background: linear-gradient(to bottom, rgba(16, 17, 19, 0.92), rgba(16, 17, 19, 0.55) 70%, transparent);
  pointer-events: none;
  z-index: 20;
}
#topbar > * { pointer-events: auto; }

.brand {
  font-size: 10px; letter-spacing: 0.22em; color: var(--text);
  display: flex; align-items: center; gap: 8px; white-space: nowrap;
  user-select: none;
}
.brand em { font-style: normal; color: var(--text-dim); letter-spacing: 0.22em; }
.brand-mark {
  width: 9px; height: 9px; background: var(--accent);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.seg {
  display: flex; align-items: stretch;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 7px;
  overflow: hidden;
}
.seg button {
  appearance: none; border: 0; background: transparent; color: var(--text-dim);
  font-family: var(--sans); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 7px 12px; cursor: pointer;
  border-right: 1px solid var(--line);
  transition: background 0.12s ease, color 0.12s ease;
}
.seg button:last-child { border-right: 0; }
.seg button:hover { background: var(--bg-hover); color: var(--text); }
.seg button:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.seg button.active {
  background: var(--accent-soft); color: var(--accent);
  box-shadow: inset 0 -2px 0 var(--accent);
}

#topbar .spacer, #presets { margin-left: auto; }
#lighting { margin-left: 0; }

/* ---------- left panel ---------- */
#panel {
  position: absolute; top: 58px; left: 14px;
  width: var(--panel-w);
  display: flex; flex-direction: column; gap: 0;
  background: rgba(20, 21, 23, 0.94);
  border: 1px solid var(--line);
  border-radius: 10px;
  z-index: 30;
  max-height: calc(100% - 72px);
  overflow: hidden auto;
  scrollbar-width: thin;
  scrollbar-color: #34373b transparent;
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.28s ease;
}
#panel.hidden { transform: translateX(calc(-100% - 22px)); opacity: 0; pointer-events: none; }

.panel-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px 8px;
}
.panel-title {
  font-size: 10px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--text-dim);
}
#panelHide {
  appearance: none; border: 0; background: transparent; color: var(--text-dim);
  font-size: 11px; cursor: pointer; padding: 2px 6px; border-radius: 4px; line-height: 1;
}
#panelHide:hover { background: var(--bg-hover); color: var(--text); }
#panelHide:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

#panel section { border-top: 1px solid var(--line); }
.sec-head {
  appearance: none; border: 0; width: 100%; background: transparent;
  display: flex; align-items: center; justify-content: space-between;
  color: var(--text); font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  padding: 11px 12px; cursor: pointer; text-align: left;
  font-family: var(--sans);
}
.sec-head:hover { background: var(--bg-raise); }
.sec-head:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.chev {
  width: 7px; height: 7px; border-right: 1.5px solid var(--text-dim);
  border-bottom: 1.5px solid var(--text-dim);
  transform: rotate(45deg); transition: transform 0.18s ease;
  margin-right: 2px;
}
section.collapsed .chev { transform: rotate(-45deg); }
.sec-body { padding: 2px 12px 12px; }
section.collapsed .sec-body { display: none; }

.stat {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 4px 0;
}
.stat span {
  font-size: 9.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-dim);
}
.stat b {
  font-family: var(--mono); font-weight: 500; font-size: 11.5px; color: var(--text);
  font-variant-numeric: tabular-nums;
}

.hint {
  font-family: var(--mono); font-size: 10px; color: var(--text-dim);
  letter-spacing: 0.04em; margin: 2px 0 10px;
  border-left: 2px solid var(--accent); padding-left: 8px;
}

.toggle {
  display: flex; align-items: center; gap: 9px;
  padding: 5px 4px; border-radius: 6px; cursor: pointer;
  user-select: none;
}
.toggle:hover { background: var(--bg-raise); }
.toggle input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.toggle .box {
  width: 14px; height: 14px; flex: none;
  border: 1px solid #43474d; border-radius: 3.5px;
  background: var(--bg);
  position: relative;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.toggle .box::after {
  content: ""; position: absolute; inset: 3px 2.5px;
  background: var(--accent); border-radius: 1.5px;
  transform: scale(0); transition: transform 0.13s cubic-bezier(0.5, 1.6, 0.5, 1);
}
.toggle input:checked + .box { background: var(--accent-soft); border-color: var(--accent); }
.toggle input:checked + .box::after { transform: scale(1); }
.toggle input:focus-visible + .box { outline: 2px solid var(--accent); outline-offset: 2px; }
.toggle span {
  font-size: 11.5px; letter-spacing: 0.02em; color: var(--text);
}
.toggle input:checked ~ span { color: #e8ebee; }

#resetView {
  appearance: none; width: 100%; margin-top: 10px;
  background: var(--bg-raise); border: 1px solid var(--line); border-radius: 7px;
  color: var(--text); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 8px 10px; cursor: pointer; font-family: var(--sans);
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}
#resetView:hover { background: var(--bg-hover); border-color: #4a4e54; color: #fff; }
#resetView:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

#panelShow {
  position: absolute; left: 14px; top: 58px; z-index: 25;
  appearance: none; border: 1px solid var(--line); background: rgba(20, 21, 23, 0.94);
  color: var(--text-dim); border-radius: 7px;
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  padding: 7px 12px; cursor: pointer;
  opacity: 0; pointer-events: none; transition: opacity 0.25s ease;
}
#panelShow.shown { opacity: 1; pointer-events: auto; }
#panelShow:hover { color: var(--text); background: var(--bg-hover); }
#panelShow:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- tooltip ---------- */
#tooltip {
  position: fixed; z-index: 90; max-width: 240px;
  background: #0e0f11; border: 1px solid #2c2f34; border-radius: 7px;
  color: var(--text); font-size: 11px; line-height: 1.45;
  padding: 7px 10px;
  opacity: 0; pointer-events: none;
  transform: translateY(4px); transition: opacity 0.14s ease, transform 0.14s ease;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
}
#tooltip.shown { opacity: 1; transform: translateY(0); }

/* ---------- loader ---------- */
#loader {
  position: absolute; inset: 0; z-index: 100;
  background: radial-gradient(ellipse at 50% 42%, #1d1e21 0%, #131417 62%, #0e0f11 100%);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s ease; 
}
#loader.done { opacity: 0; pointer-events: none; }
.load-inner { width: min(320px, 78vw); text-align: center; }
.load-title {
  font-size: 13px; letter-spacing: 0.34em; color: var(--text);
  margin-bottom: 6px;
}
.load-sub { font-size: 9.5px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--text-dim); }
#load-status {
  font-family: var(--mono); font-size: 10.5px; color: var(--accent);
  margin: 26px 0 10px; min-height: 14px;
}
#load-bar {
  height: 2px; background: #26282c; border-radius: 1px; overflow: hidden;
}
#load-bar-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, #9a7538, var(--accent));
  transition: width 0.35s ease;
}

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .brand em { display: none; }
}
@media (max-width: 760px) {
  #topbar { flex-wrap: wrap; gap: 8px; padding: 8px 10px; }
  .brand { order: 1; font-size: 9px; }
  #presets { order: 2; margin-left: auto; }
  #lighting { order: 3; margin-left: 0; }
  .seg button { padding: 7px 9px; font-size: 9px; letter-spacing: 0.1em; }
  #panel {
    top: auto; bottom: 10px; left: 10px; right: 10px; width: auto;
    max-height: 44%;
  }
  #panel.hidden { transform: translateY(calc(100% + 18px)); }
  #panelShow { top: auto; bottom: 12px; }
}
@media (max-width: 480px) {
  .seg button { padding: 6px 7px; }
  #tooltip { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  #panel, #tooltip, #loader { transition: none; }
}