:root {
  --primary: #00aeef;
  --primary-hover: #0090c5;
  --bg-dark: #1a1a1a;
  --bg-panel: #2a2a2a;
  --text-main: #ffffff;
  --text-muted: #aaaaaa;
  --border: #444;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, Avenir, Helvetica, Arial, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 800px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

main {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

header {
  text-align: center;
}

header h1 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.icon-spin {
  animation: spin 4s linear infinite;
}

.dropzone {
  background: var(--bg-panel);
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 3rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  /* For folder button positioning */
}

.folder-select-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255, 255, 255, 0.05);
  /* Slight visibility */
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 10;
}

.folder-select-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: scale(1.05);
}

.dropzone:hover,
.dropzone.active {
  border-color: var(--primary);
  background: rgba(0, 174, 239, 0.05);
}

.dropzone-content h3 {
  margin: 1rem 0 0.5rem;
}

.dropzone-content p {
  color: var(--text-muted);
  margin: 0;
}

.controls {
  background: var(--bg-panel);
  padding: 1.5rem;
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.status {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.engine-status {
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ready {
  color: #4caf50;
  display: flex;
  align-items: center;
  gap: 4px;
}

.loading {
  color: #ff9800;
  display: flex;
  align-items: center;
  gap: 4px;
}

.buttons {
  display: flex;
  gap: 1rem;
}

button {
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--text-main);
  color: var(--text-main);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.logs-panel {
  background: #000;
  border-radius: 8px;
  padding: 1rem;
  font-family: monospace;
  height: 200px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.logs-panel h4 {
  margin: 0 0 0.5rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.logs-content {
  overflow-y: auto;
  flex: 1;
  font-size: 0.9rem;
  color: #0f0;
}

.log-entry {
  margin-bottom: 2px;
}

.placeholder {
  color: #444;
  font-style: italic;
}

@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}

.spin {
  animation: spin 1s linear infinite;
}