style.css

/* styles.css – Premium UI design (glassmorphism, dark mode) */
:root {
  --font-primary: 'Inter', sans-serif;
  --color-bg-dark: #0a0a0a;
  --color-card-bg: rgba(26, 26, 26, 0.8);
  --color-accent-gradient: linear-gradient(135deg, #ff7e5f, #feb47b);
  --color-accent: #4a90e2;
  --color-text-light: #f0f0f0;
  --color-text-muted: #bbbbbb;
}
body {
  margin: 0;
  font-family: var(--font-primary);
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  transition: background 0.3s ease;
}
.dark {
  background: var(--color-bg-dark);
}
.light {
  background: #f5f5f5;
  color: #222;
}
.header {
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(12px);
  background: rgba(10,10,10,0.5);
}
h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 600;
}
.btn {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn--primary {
  background: var(--color-accent-gradient);
  color: #fff;
}
.btn--secondary {
  background: var(--color-card-bg);
  color: var(--color-text-light);
  border: 1px solid var(--color-accent);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  padding: 2rem;
}
.card {
  background: var(--color-card-bg);
  border-radius: 1rem;
  padding: 1.5rem;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transition: transform 0.2s;
}
.card:hover {
  transform: translateY(-4px);
}
.stats {
  display: flex;
  gap: 1rem;
}
.stat {
  flex: 1;
  text-align: center;
}
.stat__value {
  display: block;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--color-accent);
}
.stat__label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.builder__canvas {
  min-height: 200px;
  border: 2px dashed var(--color-accent);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1rem;
}
.builder__palette {
  display: flex;
  gap: 0.5rem;
}
.palette-item {
  flex: 1;
  padding: 0.5rem;
  background: var(--color-accent-gradient);
  color: #fff;
  border: none;
  border-radius: 0.4rem;
  cursor: grab;
}
.palette-item:active {
  cursor: grabbing;
}
/* Accessibility focus */
button:focus-visible, .palette-item:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
/* Skeleton Loaders */
.skeleton {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.05) 25%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.05) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite ease-in-out;
  border-radius: 4px;
}
@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}
.skeleton-text {
  height: 1rem;
  margin-bottom: 0.5rem;
  width: 100%;
}
.skeleton-value {
  height: 1.8rem;
  width: 60%;
  margin: 0 auto 0.5rem auto;
}
.skeleton-label {
  height: 0.9rem;
  width: 80%;
  margin: 0 auto;
}
/* Builder Drag & Drop States */
.builder__canvas {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background 0.2s;
}
.builder__canvas.drag-over {
  background: rgba(74, 144, 226, 0.1);
  border-color: #ff7e5f;
}
.canvas-block {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--color-accent);
  padding: 0.8rem;
  border-radius: 0.4rem;
  color: var(--color-text-light);
  cursor: pointer;
  animation: fadeIn 0.3s ease-out;
}
.canvas-block:hover {
  background: rgba(255, 255, 255, 0.2);
}
.dragging {
  opacity: 0.5;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}