:root {
  --decor-primary: #6c5ce7;
  --decor-primary-dark: #5849c2;
  --decor-bg-light: #f5f6fa;
  --decor-bg-dark: #14151a;
  --decor-panel-dark: #1e2028;
  --decor-border-dark: #2b2e3a;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

.auth-body {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--decor-primary) 0%, #341f97 100%);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  border: none;
  border-radius: 16px;
}

/* App shell */
.app-shell {
  min-height: 100vh;
  background: var(--decor-bg-light);
}

.app-shell.dark-mode {
  background: var(--decor-bg-dark);
  color: #eaeaea;
}

.navbar-decor {
  background: #fff;
  border-bottom: 1px solid #e6e6ee;
}

.dark-mode .navbar-decor {
  background: var(--decor-panel-dark);
  border-bottom: 1px solid var(--decor-border-dark);
}

.project-card {
  border-radius: 12px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

/* Skeleton loader */
.skeleton {
  background: linear-gradient(90deg, #e9e9f0 25%, #f5f5fa 37%, #e9e9f0 63%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
  border-radius: 8px;
}

@keyframes skeleton-loading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

/* Studio (3D editor) layout */
.studio-shell {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  grid-template-rows: 56px 1fr;
  height: 100vh;
  overflow: hidden;
}

.studio-topbar {
  grid-column: 1 / -1;
  background: var(--decor-panel-dark);
  color: #fff;
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-bottom: 1px solid var(--decor-border-dark);
}

.studio-sidebar-left,
.studio-sidebar-right {
  background: var(--decor-panel-dark);
  color: #e6e6ee;
  overflow-y: auto;
  border-right: 1px solid var(--decor-border-dark);
}

.studio-sidebar-right {
  border-right: none;
  border-left: 1px solid var(--decor-border-dark);
}

#viewport-container {
  position: relative;
  background: #0d0e12;
}

#three-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.viewport-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(13, 14, 18, 0.85);
  color: #fff;
  z-index: 10;
}

.catalog-item {
  cursor: grab;
  border-radius: 8px;
  border: 1px solid var(--decor-border-dark);
  padding: 8px;
  text-align: center;
  font-size: 12px;
}

.catalog-item:hover {
  border-color: var(--decor-primary);
}

.toast-container {
  z-index: 1080;
}