#ia-content-assistant { max-width: 700px; margin: 2em auto; padding: 2em; background: #fff; border: 1px solid #e5e5e5; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
.ia-app-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid #ddd; padding-bottom: 1em; margin-bottom: 1em; }
#ia-credits-display { font-size: 1.1em; background: #eef7ff; padding: 0.5em 1em; border-radius: 20px; color: #005f9e; }
.ia-content-tabs { display: flex; border-bottom: 1px solid #ddd; margin-bottom: 1.5em; }
.ia-tab-button { padding: 10px 20px; border: none; background: transparent; cursor: pointer; font-size: 1.1em; color: #555; border-bottom: 3px solid transparent; margin-bottom: -1px; }
.ia-tab-button.active { color: #0073aa; border-bottom-color: #0073aa; font-weight: bold; }
.ia-tab-content { display: none; }
.ia-tab-content.active { display: block; }
#ia-content-assistant textarea { width: 100%; padding: 12px; border: 1px solid #ccc; border-radius: 4px; margin-bottom: 1em; box-sizing: border-box; font-family: inherit; }
.ia-app-button { display: inline-block; padding: 12px 25px; background-color: #0073aa; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 1em; font-weight: bold; text-decoration: none; text-align: center; transition: background-color 0.3s; }
.ia-app-button:hover { background-color: #005f9e; }
.ia-app-button:disabled { background-color: #ccc; cursor: not-allowed; }
#ia-result-wrapper { margin-top: 1em; }
#ia-loading-spinner { text-align: center; padding: 2em; color: #777; }
#ia-loading-spinner .spinner { border: 8px solid #f3f3f3; border-radius: 50%; border-top: 8px solid #0073aa; width: 60px; height: 60px; animation: spin 1s linear infinite; margin: 0 auto 1em; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
#ia-error-message { padding: 1em; background-color: #fbeaea; border-left: 4px solid #d9534f; color: #d9534f; }
#ia-content-result-wrapper { margin-top: 2em; padding-top: 1em; border-top: 1px solid #ddd; }