.app{min-height:100vh;padding:2rem}.container{max-width:1200px;margin:0 auto}h2{font-size:1.5rem;color:#34495e;margin:0}.config-section{background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a;margin-bottom:2rem;overflow:hidden}.config-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .3s}.config-header:hover{background:#f8f9fa}.config-toggle{font-size:1.2rem;color:#666;transition:transform .3s}.config-content{padding:0 2rem 2rem;animation:slideDown .3s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.generate-section{background:#fff;padding:2rem;border-radius:12px;box-shadow:0 2px 8px #0000001a;margin-bottom:2rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;font-weight:600;color:#555;margin-bottom:.5rem}.form-group input,.form-group textarea{width:100%;padding:.75rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:#3498db}.form-group textarea{resize:vertical;font-family:inherit}.generate-btn{width:100%;padding:1rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.generate-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.generate-btn:disabled{opacity:.6;cursor:not-allowed}.error-message{background:#fee;color:#c33;padding:1rem;border-radius:8px;margin-bottom:2rem;border-left:4px solid #c33}.history-section{background:#fff;padding:2rem;border-radius:12px;box-shadow:0 2px 8px #0000001a;margin-top:2rem}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.clear-btn{padding:.5rem 1rem;background:#e74c3c;color:#fff;border:none;border-radius:6px;font-size:.9rem;cursor:pointer;transition:background .3s}.clear-btn:hover{background:#c0392b}.history-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.history-card{border-radius:8px;overflow:hidden;box-shadow:0 2px 8px #0000001a;transition:transform .3s}.history-card:hover{transform:translateY(-4px);box-shadow:0 4px 16px #00000026}.history-card img{width:100%;height:250px;object-fit:cover;display:block;cursor:pointer;transition:opacity .3s}.history-card img:hover{opacity:.9}.history-info{padding:1rem;background:#fff}.history-prompt{font-size:.95rem;color:#333;margin-bottom:.75rem;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.history-meta{display:flex;flex-direction:column;gap:.5rem}.history-time{font-size:.8rem;color:#999}.history-actions{display:flex;gap:.5rem;flex-wrap:wrap}.use-prompt-btn{padding:.25rem .75rem;background:#27ae60;color:#fff;border:none;border-radius:4px;font-size:.8rem;cursor:pointer;transition:background .3s}.use-prompt-btn:hover{background:#229954}.download-btn{padding:.25rem .75rem;background:#3498db;color:#fff;border:none;border-radius:4px;font-size:.8rem;cursor:pointer;transition:background .3s}.download-btn:hover{background:#2980b9}.delete-btn{padding:.25rem .75rem;background:#95a5a6;color:#fff;border:none;border-radius:4px;font-size:.8rem;cursor:pointer;transition:background .3s}.delete-btn:hover{background:#7f8c8d}.preview-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000e6;display:flex;align-items:center;justify-content:center;z-index:1000;cursor:pointer}.preview-content{position:relative;max-width:90vw;max-height:90vh;cursor:default}.preview-content img{max-width:100%;max-height:90vh;object-fit:contain;display:block}.preview-close{position:absolute;top:-40px;right:0;background:#fff3;color:#fff;border:none;width:36px;height:36px;border-radius:50%;font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .3s}.preview-close:hover{background:#ffffff4d}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f5f5f5}