/* --- Main Container (Unchanged) --- */
#cub-selector-container {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 25px;
    border-radius: 12px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    max-width: 700px;
    margin: 20px auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}
#cub-selector-container h3, #cub-selector-container h4 {
    color: #ffffff;
    border-bottom: 1px solid #34495e;
    padding-bottom: 10px;
    margin-top: 0;
    margin-bottom: 20px;
    font-weight: 300;
}
#cub-selector-container h4 {
    font-size: 1em; text-align: center; border: none; color: #95a5a6;
}

/* --- Image Grid (Unchanged) --- */
.cub-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 15px; margin-bottom: 25px; }
.cub-item { position: relative; cursor: pointer; border-radius: 8px; overflow: hidden; transition: transform 0.2s ease, box-shadow 0.2s ease; border: 3px solid transparent; }
.cub-item img { display: block; width: 100%; height: 100px; object-fit: cover; }
.cub-item:hover { transform: scale(1.05); box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3); }
.cub-item.active { border-color: #3498db; box-shadow: 0 0 20px rgba(52, 152, 219, 0.7); }
.cub-item .cub-checkmark { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0); background-color: rgba(52, 152, 219, 0.8); color: white; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.cub-item.active .cub-checkmark { transform: translate(-50%, -50%) scale(1); }

/* --- Buttons and Actions --- */
.cub-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; }
.cub-button { background-color: #3498db; color: #ffffff; border: none; padding: 12px 25px; border-radius: 5px; cursor: pointer; font-size: 1em; transition: background-color 0.2s ease, transform 0.1s ease; }
.cub-button:hover { background-color: #2980b9; transform: translateY(-2px); }
.cub-button.secondary { background-color: #e74c3c; }
.cub-button.secondary:hover { background-color: #c0392b; }
.cub-button.tertiary { background-color: #1abc9c; } /* New browse button style */
.cub-button.tertiary:hover { background-color: #16a085; }

/* --- Feedback Message (Unchanged) --- */
#cub-feedback-message { text-align: center; margin-top: 20px; padding: 10px; border-radius: 5px; display: none; }
#cub-feedback-message.saving { color: #f1c40f; }
#cub-feedback-message.success { background-color: #27ae60; color: #ffffff; }
#cub-feedback-message.error { background-color: #c0392b; color: #ffffff; }

/* --- NEW: Pexels Modal Styles --- */
#cub-pexels-modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.7); z-index: 10000; display: flex; align-items: center; justify-content: center; }
#cub-pexels-modal { background-color: #34495e; color: #ecf0f1; width: 90%; max-width: 800px; height: 80%; max-height: 600px; border-radius: 10px; box-shadow: 0 10px 40px rgba(0,0,0,0.4); display: flex; flex-direction: column; overflow: hidden; }
.modal-header { padding: 15px 20px; border-bottom: 1px solid #2c3e50; display: flex; justify-content: space-between; align-items: center; }
.modal-header h4 { margin: 0; font-weight: 400; font-size: 1.2em; }
.modal-header .close-modal { background: none; border: none; color: #ecf0f1; font-size: 28px; cursor: pointer; line-height: 1; padding: 0; }
.modal-body { padding: 20px; flex-grow: 1; display: flex; flex-direction: column; overflow: hidden; }
#cub-pexels-search-form { display: flex; gap: 10px; margin-bottom: 20px; }
#cub-pexels-search-input { flex-grow: 1; background-color: #2c3e50; border: 1px solid #46627f; border-radius: 5px; padding: 10px; color: #ecf0f1; font-size: 1em; }
#cub-pexels-search-form button { background-color: #3498db; color: white; border: none; padding: 10px 20px; border-radius: 5px; cursor: pointer; transition: background-color 0.2s; }
#cub-pexels-search-form button:hover { background-color: #2980b9; }
#cub-pexels-results { flex-grow: 1; overflow-y: auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 15px; }
.cub-pexels-item { cursor: pointer; border-radius: 8px; overflow: hidden; transition: transform 0.2s ease, box-shadow 0.2s ease; position: relative; }
.cub-pexels-item:hover { transform: scale(1.05); box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5); }
.cub-pexels-item img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* Loader for search results */
.cub-loader { margin: 50px auto; width: 50px; height: 50px; border: 5px solid #46627f; border-top-color: #3498db; border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }