:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #0f3460;
  --accent: #e94560;
  --accent-light: #ff6b81;
  --text-primary: #eaeaea;
  --text-secondary: #a0a0b0;
  --success: #2ecc71;
  --warning: #f39c12;
  --error: #e74c3c;
  --border-radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

.app-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  text-align: center;
  padding: 20px 0;
  border-bottom: 2px solid var(--bg-card);
  margin-bottom: 20px;
}

.app-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.title-accent {
  color: var(--accent);
}

.app-badge {
  display: inline-block;
  background: var(--bg-card);
  color: var(--accent-light);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 8px;
  border: 1px solid var(--accent);
}

.main-content {
  flex: 1;
}

.card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.upload-area {
  text-align: center;
  padding: 30px;
  border: 2px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.3s ease;
}

.upload-area:hover,
.upload-area.drag-over {
  border-color: var(--accent);
  background: rgba(233, 68, 96, 0.05);
}

.upload-icon {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.upload-text {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.upload-subtext {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.btn {
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  touch-action: manipulation;
}

.btn:active {
  transform: scale(0.97);
}

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

.btn-primary:hover {
  background: var(--accent-light);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.8rem;
}

.btn-toggle {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-secondary);
}

.btn-toggle.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.progress-container {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  height: 8px;
  margin-bottom: 16px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  width: 0%;
  transition: width 0.5s ease;
  border-radius: 10px;
}

.progress-text {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.step {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  border-left: 3px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.step.active {
  border-left-color: var(--accent);
  background: rgba(233, 68, 96, 0.1);
  color: var(--text-primary);
  animation: pulse 1.5s infinite;
}

.step.done {
  border-left-color: var(--success);
  color: var(--success);
  opacity: 0.8;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.view-toggle {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.image-viewer {
  background: #000;
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-bottom: 16px;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-viewer canvas {
  max-width: 100%;
  height: auto;
}

.action-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.audit-info {
  background: rgba(0, 0, 0, 0.3);
  padding: 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.audit-info strong {
  color: var(--accent-light);
}

.status-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.status-badge {
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
}

.app-footer {
  text-align: center;
  padding: 20px 0;
  color: var(--text-secondary);
  font-size: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: 20px;
}

.ethical-note {
  margin-top: 6px;
  color: var(--accent-light);
  font-weight: 500;
}

/* Responsive */
@media (max-width: 600px) {
  .app-container {
    padding: 10px;
  }
  
  .app-title {
    font-size: 1.5rem;
  }
  
  .card {
    padding: 14px;
  }
  
  .btn {
    padding: 10px 18px;
    font-size: 0.85rem;
  }
  
  .upload-area {
    padding: 20px;
  }
}

/* Soporte para notch en móviles */
@supports (padding: env(safe-area-inset-top)) {
  .app-container {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
  }
}
/* Estilos para la sección del pincel */
.brush-card {
  padding: 10px;
}

.brush-canvas-container {
  position: relative;
  background: #000;
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-bottom: 12px;
}

.brush-canvas-container canvas {
  display: block;
  width: 100%;
  height: auto;
  touch-action: none; /* Evita scroll al pintar */
}

.brush-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.brush-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.brush-slider {
  flex: 1;
  min-width: 80px;
  accent-color: var(--accent);
  height: 6px;
}

.btn-block {
  width: 100%;
  margin-bottom: 8px;
}

.hint-text {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
}