:root {
  --bg: #0a111a;
  --bg-elev: #111a27;
  --bg-elev-2: #162131;
  --text: #edf3fd;
  --text-muted: #9dadc6;
  --accent: #4acb9a;
  --accent-2: #2f9f78;
  --border: #27384e;
  --danger: #ff7f7f;
  --warning: #ffc468;
  --success: #79e5b2;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

:root[data-theme="light"] {
  --bg: #e9eff7;
  --bg-elev: #f8fbff;
  --bg-elev-2: #ffffff;
  --text: #1d2a3d;
  --text-muted: #5d718f;
  --accent: #2f9f78;
  --accent-2: #267f61;
  --border: #cfdae8;
  --danger: #d94d4d;
  --warning: #a87921;
  --success: #1e8f61;
  --shadow: 0 10px 24px rgba(14, 30, 54, 0.12);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  height: 100%;
  font-family: "Segoe UI", "Manrope", "Noto Sans", sans-serif;
  background:
    radial-gradient(circle at 90% 0%, rgba(74, 203, 154, 0.09), transparent 42%),
    radial-gradient(circle at 0% 100%, rgba(87, 118, 193, 0.13), transparent 40%),
    var(--bg);
  color: var(--text);
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(330px, 410px) 1fr;
  gap: 16px;
  height: 100%;
  padding: 58px 14px 14px;
}

.language-switcher {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: linear-gradient(155deg, var(--bg-elev), var(--bg-elev-2));
  box-shadow: var(--shadow);
}

.language-switcher-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.language-switcher-select {
  min-width: 132px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-elev-2);
  color: var(--text);
  font-size: 0.8rem;
  padding: 4px 6px;
}

.sidebar {
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 2px;
}

.card {
  background: linear-gradient(155deg, var(--bg-elev), var(--bg-elev-2));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  box-shadow: var(--shadow);
}

.brand h1 {
  margin: 0;
  font-size: 1.55rem;
}

.brand p {
  margin: 4px 0 0;
  color: var(--text-muted);
}

h2 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}

.compact-card .field {
  margin-bottom: 0;
}

.fields-grid {
  display: grid;
  gap: 8px 10px;
}

.fields-grid.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.toggle-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.toggle-field span {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.toggle-field input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.field span {
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.2;
}

input[type="file"],
input[type="range"],
input[type="color"] {
  width: 100%;
}

input[type="number"] {
  width: 88px;
  min-width: 88px;
  text-align: right;
}

label.field input[type="number"] {
  align-self: flex-start;
}

input[type="number"],
input[type="file"] {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.1);
  color: var(--text);
  padding: 7px 8px;
  font-size: 0.88rem;
}

input[type="color"] {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.1);
  color: var(--text);
  padding: 2px;
  height: 34px;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 6px;
}

input[type="color"]::-moz-color-swatch {
  border: none;
  border-radius: 6px;
}

input[type="range"] {
  accent-color: var(--accent);
}

.button-grid {
  display: grid;
  gap: 8px;
}

button {
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  padding: 10px 12px;
  font-weight: 600;
  cursor: pointer;
}

button:hover:not(:disabled) {
  border-color: var(--accent);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

button.primary {
  border: none;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: #f8fffb;
}

button.secondary {
  background: rgba(74, 203, 154, 0.16);
}

.metric-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin: 0;
  font-size: 0.81rem;
}

.ui-hidden {
  display: none !important;
}

.scale-info {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.02);
}

.scale-column {
  display: grid;
  gap: 6px;
}

.metric-row span {
  color: var(--text-muted);
}

.theme-card {
  margin-bottom: 10px;
}

.parts-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.parts-empty {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.part-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.02);
}

.part-title {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.part-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.part-export-btn {
  padding: 7px 9px;
  font-size: 0.83rem;
}

.part-material-controls {
  margin-top: 4px;
}

.material-color-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.color-field {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 6px;
  background: var(--bg-elev-2);
}

.color-field span {
  text-align: center;
  font-size: 0.78rem;
}

.color-field input[type="color"] {
  width: 100%;
  background: var(--bg-elev-2);
}

.part-color-hint {
  margin: 0 0 10px;
  color: var(--text-muted);
  font-size: 0.86rem;
}

.part-color-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.part-color-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.02);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.part-color-title {
  grid-column: 1 / -1;
  display: block;
  margin-bottom: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.part-color-item .field {
  margin-bottom: 0;
}

.theme-fab {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--text);
  box-shadow: var(--shadow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  z-index: 40;
}

.theme-fab-icon {
  width: 22px;
  height: 22px;
  display: block;
  object-fit: contain;
  pointer-events: none;
}

.status {
  margin: 10px 0 0;
  min-height: 1.2em;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.status[data-type="error"] {
  color: var(--danger);
}

.status[data-type="warning"] {
  color: var(--warning);
}

.status[data-type="success"] {
  color: var(--success);
}

.viewer-area {
  min-width: 0;
  position: relative;
}

.viewport {
  width: 100%;
  height: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.camera-widget {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 132px;
  border: none;
  border-radius: 0;
  padding: 0;
  background: transparent;
  backdrop-filter: none;
  box-shadow: none;
  z-index: 9;
  pointer-events: auto;
}

.camera-widget-header {
  display: none;
}

.camera-widget h2 {
  margin: 0;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.camera-widget-view {
  display: inline-block;
  min-width: 52px;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 700;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 7px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.camera-widget-viewport {
  width: 100%;
  aspect-ratio: 1 / 1;
  border: none;
  border-radius: 0;
  background: transparent;
  overflow: visible;
}

.camera-widget-canvas {
  display: block;
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.32));
}

.camera-widget-help {
  display: none;
}

.camera-widget-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.camera-widget-legend {
  display: none;
}

.camera-widget[data-active-view="libre"] .camera-widget-view {
  border-color: var(--border);
}

.camera-widget[data-active-view="isometrica"] .camera-widget-view {
  border-color: var(--accent);
  background: rgba(74, 203, 154, 0.18);
}

@media (max-width: 1000px) {
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(440px, 1fr);
    padding-top: 62px;
  }

  .sidebar {
    max-height: 58vh;
  }

  .camera-widget {
    top: 9px;
    right: 9px;
    width: 118px;
  }

  .scale-info {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .fields-grid.two-col {
    grid-template-columns: 1fr;
  }

  .material-color-grid,
  .part-color-item {
    grid-template-columns: 1fr;
  }

  .part-color-title {
    grid-column: auto;
  }
}