/* Стили для приложения генератора фракталов */

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
  color: #333;
}

#app {
  max-width: 1400px;
  margin: 0 auto;
}

header {
  text-align: center;
  color: white;
  margin-bottom: 30px;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

header p {
  font-size: 1.1rem;
  opacity: 0.9;
}

main {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 20px;
  align-items: start;
}

/* Панель управления */
.controls-panel {
  background: white;
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.control-group {
  margin-bottom: 25px;
}

.control-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  color: #555;
  font-size: 0.95rem;
  cursor: pointer;
}

.control-group label input[type="checkbox"] {
  margin-right: 8px;
  cursor: pointer;
  width: 18px;
  height: 18px;
  vertical-align: middle;
}

.control-group label span {
  float: right;
  color: #667eea;
  font-weight: 700;
}

.control-group input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: #e0e0e0;
  outline: none;
  cursor: pointer;
  appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #667eea;
  cursor: pointer;
  transition: all 0.2s;
}

.control-group input[type="range"]::-webkit-slider-thumb:hover {
  background: #764ba2;
  transform: scale(1.2);
}

.control-group input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #667eea;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.control-group input[type="range"]::-moz-range-thumb:hover {
  background: #764ba2;
  transform: scale(1.2);
}

.generate-btn {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.generate-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.generate-btn:active:not(:disabled) {
  transform: translateY(0);
}

.generate-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status-message {
  margin-top: 20px;
  padding: 12px;
  border-radius: 8px;
  background: #f8f9fa;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  min-height: 20px;
}

/* Canvas контейнер */
.canvas-container {
  position: relative;
  background: white;
  border-radius: 15px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  display: flex;
  justify-content: center;
  align-items: center;
}

#fractal-canvas {
  border-radius: 10px;
  max-width: 100%;
  height: auto;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Индикатор загрузки */
.loading-indicator {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.95);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border-radius: 15px;
  z-index: 10;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 6px solid #e0e0e0;
  border-top: 6px solid #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-indicator p {
  font-size: 1.2rem;
  font-weight: 600;
  color: #667eea;
}

/* Адаптивность */
@media (max-width: 1024px) {
  main {
    grid-template-columns: 1fr;
  }

  .controls-panel {
    max-width: 600px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  header h1 {
    font-size: 1.8rem;
  }

  header p {
    font-size: 0.9rem;
  }

  .controls-panel {
    padding: 20px;
  }

  #fractal-canvas {
    width: 100%;
  }
}