/* Hainong App Download Styles */


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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
}

/* Download Page Styles */
.download-page {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.download-container {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: 40px 30px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.download-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #4CAF50, #45a049, #66BB6A);
}

.app-logo {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #4CAF50, #45a049);
  border-radius: 20px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  color: white;
  box-shadow: 0 8px 20px rgba(76, 175, 80, 0.3);
}

.app-title {
  font-size: 28px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #2c3e50, #34495e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.app-subtitle {
  font-size: 16px;
  color: #7f8c8d;
  margin-bottom: 30px;
  line-height: 1.5;
}

/* Button Styles */
.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 24px;
  margin: 8px;
  border-radius: 16px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  min-width: 200px;
  position: relative;
  overflow: hidden;
}

.download-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.download-btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: white;
  box-shadow: 0 8px 20px rgba(76, 175, 80, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(76, 175, 80, 0.4);
}

.btn-secondary {
  background: linear-gradient(135deg, #3498db, #2980b9);
  color: white;
  box-shadow: 0 8px 20px rgba(52, 152, 219, 0.3);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(52, 152, 219, 0.4);
}

.btn-web {
  background: linear-gradient(135deg, #95a5a6, #7f8c8d);
  color: white;
  box-shadow: 0 8px 20px rgba(149, 165, 166, 0.3);
}

.btn-web:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(149, 165, 166, 0.4);
}

.btn-icon {
  margin-right: 8px;
  font-size: 18px;
}

/* Loading Spinner */
.loading-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: 8px;
}

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

/* Status Messages */
.status-message {
  margin-top: 20px;
  padding: 12px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
}

.status-success {
  background: rgba(76, 175, 80, 0.1);
  color: #2e7d32;
  border: 1px solid rgba(76, 175, 80, 0.2);
}

.status-info {
  background: rgba(52, 152, 219, 0.1);
  color: #1976d2;
  border: 1px solid rgba(52, 152, 219, 0.2);
}

.status-warning {
  background: rgba(255, 193, 7, 0.1);
  color: #f57c00;
  border: 1px solid rgba(255, 193, 7, 0.2);
}

/* Features */
.features {
  margin-bottom: 30px;
}

.feature-item {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 12px;
  padding: 8px 0;
  text-align: left;
}

.feature-icon {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #4CAF50, #45a049);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 12px;
  font-size: 12px;
  color: white;
  flex-shrink: 0;
}

.feature-text {
  font-size: 14px;
  color: #555;
  line-height: 1.4;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.mb-20 {
  margin-bottom: 20px;
}

.mb-30 {
  margin-bottom: 30px;
}

/* Responsive Design */
@media (max-width: 480px) {
  .download-container {
    padding: 30px 20px;
    margin: 10px;
  }
  
  .app-title {
    font-size: 24px;
  }
  
  .download-btn {
    min-width: 180px;
    padding: 14px 20px;
    font-size: 15px;
  }
  
  .feature-text {
    font-size: 13px;
  }
}

/* Landing Page Specific Styles */
.hero-section {
  background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
  color: white;
  padding: 80px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(/%23grain)"/></svg>');
  opacity: 0.3;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 20px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
  font-size: 20px;
  margin-bottom: 40px;
  opacity: 0.9;
  font-weight: 300;
}

.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #2c3e50;
}

.section-subtitle {
  text-align: center;
  font-size: 18px;
  color: #7f8c8d;
  margin-bottom: 60px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Feature Cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.feature-card {
  text-align: center;
  padding: 40px 30px;
  background: #f8f9fa;
  border-radius: 20px;
  transition: all 0.3s ease;
  border: 1px solid #e9ecef;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
  background: white;
}

.feature-card .feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #4CAF50, #45a049);
  border-radius: 20px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  color: white;
}

.feature-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 15px;
  color: #2c3e50;
}

.feature-description {
  font-size: 16px;
  color: #7f8c8d;
  line-height: 1.6;
}