:root {
  --vivid-primary: #2c3e50;
  --vivid-secondary: #34495e;
  --vivid-accent: #3498db;
  --vivid-accent2: #2980b9;
  --vivid-bg: #f5f6fa;
  --vivid-card: #fff;
  --vivid-gradient: linear-gradient(90deg, #2c3e50 0%, #34495e 100%);
  --vivid-gradient2: linear-gradient(90deg, #34495e 0%, #2980b9 100%);
  --vivid-dark: #2c3e50;
  --vivid-light: #ecf0f1;
  --vivid-border: #bdc3c7;
}

body {
  background: var(--vivid-bg);
  font-family: 'Montserrat', 'Segoe UI', Arial, Helvetica, sans-serif;
  color: var(--vivid-dark);
  min-height: 100vh;
}

.subscription-container {
  max-width: 800px;
  margin: 40px auto;
  background: white;
  border-radius: 8px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
  padding: 30px;
}

.header-logo {
  max-height: 80px;
  margin-bottom: 20px;
}

.vivid-card {
  border-radius: 0.5rem;
  background: var(--vivid-card);
  box-shadow: 0 2px 8px 0 rgba(44, 62, 80, 0.10);
  border: 1px solid var(--vivid-border);
}

.vivid-gradient-text {
  background: var(--vivid-gradient2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.preview-item {
  margin-bottom: 0.5rem;
}

.preview-label {
  font-weight: 600;
  color: var(--vivid-dark);
}

.form-label {
  font-weight: 500;
  color: var(--vivid-dark);
  margin-bottom: 0.5rem;
  display: block;
}

.btn-vivid-save {
  background-color: var(--vivid-primary);
  color: white;
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: background-color 0.2s;
}

.btn-vivid-save:hover {
  background-color: var(--vivid-accent2);
}

@media (max-width: 767.98px) {
  .subscription-container {
    padding: 20px;
  }
  
  .header-logo {
    max-height: 60px;
  }
}