/* facet studio — core styles */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #09090b;
  --surface: #111113;
  --surface2: #1a1a1e;
  --border: #27272a;
  --text: #fafafa;
  --text2: #71717a;
  --accent: #6366f1;
  --accent-dim: #4f46e5;
  --accent-bg: rgba(99, 102, 241, 0.08);
  --warn: #f59e0b;
  --danger: #ef4444;
  --success: #22c55e;
  --scene-bg: #09090b;
  --cube-color: #cccccc;
  --radius: 10px;
}

body.light {
  --bg: #f4f4f5;
  --surface: #ffffff;
  --surface2: #e4e4e7;
  --border: #d4d4d8;
  --text: #18181b;
  --text2: #71717a;
  --accent-bg: rgba(99, 102, 241, 0.1);
  --scene-bg: #e4e4e7;
  --cube-color: #999999;
}

body {
  font-family: 'DM Mono', monospace;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  display: flex;
}

/* panel */
#panel {
  width: 380px;
  min-width: 380px;
  height: 100vh;
  overflow-y: auto;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

#panel::-webkit-scrollbar { width: 4px; }
#panel::-webkit-scrollbar-track { background: transparent; }
#panel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* title */
.title-wrap { position: relative; }

h1 {
  font-family: 'Instrument Serif', serif;
  font-size: 28px;
  font-weight: 400;
  letter-spacing: 1px;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  transition: opacity 0.15s;
}
h1:hover { opacity: 0.7; }
h1 span { color: var(--text2); font-weight: 400; font-size: 16px; letter-spacing: 3px; vertical-align: 2px; }

/* theme popover */
#themePopover {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  z-index: 100;
  flex-direction: column;
  gap: 12px;
  min-width: 200px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
#themePopover.open { display: flex; }

.popover-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text2);
}

.swatches { display: flex; gap: 8px; }

.swatch {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}
.swatch:hover { transform: scale(1.15); }
.swatch.active { border-color: var(--text); }

.mode-toggle {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  padding: 6px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  text-align: center;
  transition: background 0.15s;
}
.mode-toggle:hover { background: var(--border); }

/* sections */
.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text2);
  margin-bottom: 10px;
}

/* shape selector */
#shapeSelector {
  display: flex;
  gap: 6px;
}

.shape-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 10px 4px 8px;
  background: var(--surface2);
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  color: var(--text2);
}
.shape-btn:hover { border-color: var(--border); color: var(--text); }
.shape-btn.active { border-color: var(--accent); background: var(--accent-bg); color: var(--accent); }
.shape-icon { width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; }
.shape-icon svg { width: 18px; height: 18px; }
.shape-name { font-family: 'DM Mono', monospace; font-size: 8px; font-weight: 700; letter-spacing: 0.3px; text-transform: uppercase; line-height: 1; }

/* url inputs */
.url-group { display: flex; flex-direction: column; gap: 8px; }

.url-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.url-row label {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--text2);
  width: 14px;
  text-align: right;
  flex-shrink: 0;
}

.url-row input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.url-row input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-bg); }

.url-row input::placeholder { color: #3f3f46; }
body.light .url-row input::placeholder { color: #aaa; }

.url-input-wrap {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.url-input-wrap input { width: 100%; }

.face-tags {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  color: var(--text2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.15s;
  min-height: 12px;
}
.face-tags.lit { color: var(--accent); }

/* segments */
.segment-control { display: flex; background: var(--bg); border-radius: 8px; padding: 3px; gap: 2px; }
.segment-btn { flex: 1; padding: 6px 2px; border: none; background: none; color: var(--text2); font-size: 10px; font-weight: 700; font-family: 'DM Mono', monospace; border-radius: 5px; cursor: pointer; transition: all 0.2s ease; letter-spacing: 0.5px; white-space: nowrap; text-transform: uppercase; }
.segment-btn:hover { color: var(--text); background: var(--border); }
.segment-btn.active { background: var(--accent-bg); color: var(--accent); box-shadow: 0 1px 4px rgba(0,0,0,0.15); }

/* sliders */
.slider-group { display: flex; flex-direction: column; gap: 14px; }
.slider-row { display: flex; flex-direction: column; gap: 6px; }
.slider-header { display: flex; justify-content: space-between; align-items: baseline; }
.slider-label { font-size: 13px; font-weight: 500; }
.slider-value { font-family: 'DM Mono', monospace; font-size: 12px; color: var(--accent); }
.slider-hint { font-family: 'DM Mono', monospace; font-size: 10px; color: var(--text2); opacity: 0.7; margin-top: 2px; }

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
}

/* edge controls */
.edge-mode-row { display: flex; gap: 4px; margin-bottom: 4px; }
.edge-btn {
  flex: 1;
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  padding: 5px 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text2);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.edge-btn:hover { background: var(--border); }
.edge-btn.active { background: var(--accent-bg); color: var(--accent); border-color: var(--accent); }

/* warnings */
#warnings { display: flex; flex-direction: column; gap: 6px; }
.warning {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  padding: 10px 12px;
  border-radius: var(--radius);
  border-left: 3px solid var(--warn);
  background: rgba(245, 158, 11, 0.06);
  color: var(--warn);
  line-height: 1.5;
}
.warning.error { border-left-color: var(--danger); background: rgba(239, 68, 68, 0.06); color: var(--danger); }

/* buttons */
.btn-row { display: flex; gap: 8px; }
#exportBtn, #flipBtn {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1px;
  padding: 12px 14px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
}
#exportBtn { flex: 1; background: var(--accent); color: #fff; }
#exportBtn:hover { filter: brightness(1.15); transform: translateY(-1px); }
#exportBtn:disabled { opacity: 0.3; cursor: not-allowed; filter: none; transform: none; }
#flipBtn { background: var(--surface2); color: var(--text2); border: 1px solid var(--border); }
#flipBtn:hover { background: var(--border); }
#flipBtn.active { background: var(--accent-bg); color: var(--accent); border-color: var(--accent); }

/* status */
#status { font-family: 'DM Mono', monospace; font-size: 10px; color: var(--text2); text-align: center; }

/* viewport */
#viewport { flex: 1; position: relative; background: var(--bg); }
#viewport canvas { display: block; }

/* dividers */
.panel-divider { height: 1px; background: var(--border); margin: 4px 0; border: none; opacity: 0.5; }

/* responsive */
@media (max-width: 800px) {
  body { flex-direction: column; }
  #panel { width: 100%; min-width: unset; height: auto; max-height: 45vh; border-right: none; border-bottom: 1px solid var(--border); padding: 20px 16px; }
  #viewport { height: 55vh; }
  #shapeSelector { gap: 4px; }
  .shape-btn { padding: 8px 2px 6px; }
}

/* viewport controls */
.top-controls { position: absolute; top: 16px; right: 16px; z-index: 20; display: flex; gap: 6px; align-items: center; }
.ctrl-btn-wrap { position: relative; }
.ctrl-btn { background: var(--surface); backdrop-filter: blur(20px); border: 1px solid var(--border); border-radius: var(--radius); width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--text2); transition: all 0.2s ease; position: relative; flex-shrink: 0; }
.ctrl-btn:hover { background: var(--surface2); color: var(--accent); border-color: var(--accent-bg); }
.ctrl-btn svg { width: 15px; height: 15px; }

.hover-popover { position: absolute; top: calc(100% + 8px); right: 0; padding: 12px 14px; background: var(--surface); backdrop-filter: blur(32px); border: 1px solid var(--border); border-radius: 12px; width: 180px; opacity: 0; pointer-events: none; transform: translateY(-4px); transition: opacity 0.2s ease, transform 0.2s ease; z-index: 25; }
.hover-popover::before { content: ''; position: absolute; top: -14px; left: -20px; right: -20px; height: 16px; background: transparent; }
.ctrl-btn-wrap:hover > .hover-popover { opacity: 1; pointer-events: auto; transform: translateY(0); }

.ov-mode-label { font-family: 'DM Mono', monospace; font-size: 10px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--text2); text-align: center; margin-bottom: 10px; }
.ov-label { font-family: 'DM Mono', monospace; font-size: 10px; color: var(--text2); margin-bottom: 4px; }
.ov-slider-row { margin-bottom: 8px; }
.ov-slider-row:last-child { margin-bottom: 0; }

/* color palette */
.color-palette { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.color-dot {
  width: 22px; height: 22px; border-radius: 50%; cursor: pointer;
  border: 2px solid transparent; transition: border-color 0.15s, transform 0.15s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.color-dot:hover { transform: scale(1.2); }
.color-dot.active { border-color: var(--accent); transform: scale(1.15); }

/* toggles */
.toggle-row { display: flex; align-items: center; justify-content: space-between; padding: 3px 0; margin-bottom: 8px; }
.toggle-label { font-size: 11px; color: var(--text2); }
.toggle { position: relative; width: 36px; height: 20px; cursor: pointer; flex-shrink: 0; }
.toggle input { opacity: 0; width: 0; height: 0; position: absolute; }
.toggle-track { position: absolute; inset: 0; background: var(--border); border-radius: 10px; transition: background 0.3s ease; }
.toggle input:checked + .toggle-track { background: var(--accent-bg); }
.toggle-track::after { content: ''; position: absolute; width: 14px; height: 14px; background: var(--text2); border-radius: 50%; top: 3px; left: 3px; transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s ease; }
.toggle input:checked + .toggle-track::after { transform: translateX(16px); background: var(--accent); }

/* material presets */
.mat-preset-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; }
.mat-preset-btn { background: var(--bg); border: 1.5px solid var(--border); border-radius: 8px; padding: 6px 2px 4px; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 3px; transition: all 0.15s ease; font-family: inherit; }
.mat-preset-btn:hover { border-color: var(--accent); background: var(--accent-bg); }
.mat-preset-btn.active { border-color: var(--accent); background: var(--accent-bg); }
.mat-swatch { width: 20px; height: 20px; border-radius: 50%; flex-shrink: 0; border: 1px solid rgba(0,0,0,0.12); }
.mat-name { font-family: 'DM Mono', monospace; font-size: 7px; font-weight: 700; letter-spacing: 0.3px; text-transform: uppercase; color: var(--text2); line-height: 1; }
.mat-preset-btn.active .mat-name { color: var(--accent); }

/* dark/light icon toggle */
.icon-moon { display: none; }
body.light .icon-sun { display: none; }
body.light .icon-moon { display: block; }

/* checklist modal */
#checklistOverlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(6px); z-index: 1000; align-items: center; justify-content: center; }
#checklistOverlay.open { display: flex; }
#checklistModal { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 32px; max-width: 420px; width: 90%; box-shadow: 0 24px 64px rgba(0,0,0,0.5); }
#checklistModal h2 { font-family: 'DM Mono', monospace; font-size: 14px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--text); margin-bottom: 18px; }
.checklist-item { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.checklist-item:last-of-type { border-bottom: none; }
.check-icon { font-size: 16px; flex-shrink: 0; line-height: 1.4; }
.check-icon.pass { color: var(--success); }
.check-icon.fail { color: var(--danger); }
.check-text { font-size: 12px; color: var(--text); }
.check-fix { font-size: 11px; color: var(--text2); margin-top: 2px; }
.checklist-btns { display: flex; gap: 10px; margin-top: 20px; }
.checklist-btns button { flex: 1; font-family: 'DM Mono', monospace; font-size: 11px; font-weight: 700; letter-spacing: 0.5px; padding: 10px 12px; border: none; border-radius: 6px; cursor: pointer; text-transform: uppercase; transition: opacity 0.15s; }
#checklistExport { background: var(--accent); color: #fff; }
#checklistExport:hover { opacity: 0.85; }
#checklistGoBack { background: var(--surface2); color: var(--text2); border: 1px solid var(--border); }
#checklistGoBack:hover { background: var(--border); }