.prototype-detail {
  display: flex;
  gap: 24px;
  height: calc(100vh - 56px - 64px);
}

.prototype-preview {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.preview-frame {
  background: #111;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.preview-frame.desktop {
  width: 90%;
  height: 85%;
}

.preview-frame.tablet {
  width: 60%;
  height: 80%;
}

.preview-frame.mobile {
  width: 320px;
  height: 568px;
}

.preview-frame-header {
  height: 32px;
  background: #1a1a1a;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 6px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.preview-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.preview-dot.red {
  background: #ef4444;
}

.preview-dot.yellow {
  background: #f59e0b;
}

.preview-dot.green {
  background: #22c55e;
}

.preview-frame-url {
  flex: 1;
  margin-left: 8px;
  height: 18px;
  background: #0a0a0a;
  border-radius: 4px;
  font-size: 10px;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-family: var(--font-mono);
}

.preview-frame-body {
  flex: 1;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  position: relative;
  overflow: hidden;
}

.preview-placeholder {
  text-align: center;
  color: var(--fg-muted);
}

.preview-placeholder svg {
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
  opacity: 0.3;
}

.preview-placeholder p {
  font-size: 13px;
}

.prototype-sidebar {
  width: 300px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.prototype-sidebar .card {
  flex-shrink: 0;
}

.device-switcher {
  display: flex;
  gap: 8px;
}

.device-btn {
  flex: 1;
  padding: 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg-muted);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 11px;
  font-family: var(--font-body);
  font-weight: 500;
}

.device-btn:hover {
  border-color: var(--border-hover);
  color: var(--fg);
}

.device-btn.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}

.device-btn svg {
  width: 14px;
  height: 14px;
}

.btn-secondary {
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}

.btn-secondary:hover {
  border-color: var(--border-hover);
  background: rgba(255,255,255,0.03);
}

.kbd {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
}

@media (max-width: 1200px) {
  .prototype-detail {
    flex-direction: column;
  }
  
  .prototype-sidebar {
    width: 100%;
  }
}