:root{--primary-color:#667eea;--secondary-color:#764ba2;--text-color-light:#333;--text-color-dark:#e0e0e0;--bg-light:rgba(255, 255, 255, 0.95);--bg-dark:rgba(30, 30, 46, 0.95);--border-light:#e1e5e9;--border-dark:#4a5568;--shadow-light:0 20px 40px rgba(0, 0, 0, 0.1);--shadow-dark:0 20px 40px rgba(0, 0, 0, 0.3)}.url-slug-generator-container{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;max-width:900px;margin:2rem auto;background:var(--bg-light);color:var(--text-color-light);border-radius:20px;padding:30px;box-shadow:var(--shadow-light);backdrop-filter:blur(10px);transition:all 0.4s ease-in-out;border:1px solid rgb(255 255 255 / .2)}.url-slug-generator-container.dark-mode{background:var(--bg-dark);color:var(--text-color-dark);box-shadow:var(--shadow-dark)}.url-slug-generator-container .header{text-align:center;margin-bottom:30px;position:relative}.url-slug-generator-container .header h1{font-size:2.5rem;font-weight:700;margin-bottom:10px;background:linear-gradient(45deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:#fff0;background-clip:text}.url-slug-generator-container .header p{font-size:1.1rem;opacity:.8}.url-slug-generator-container .mode-toggle{position:absolute;top:-10px;right:-10px;background:rgb(102 126 234 / .1);border:1px solid var(--border-light);border-radius:50%;width:45px;height:45px;cursor:pointer;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center;color:var(--text-color-light)}.dark-mode .mode-toggle{border-color:var(--border-dark);background:rgb(255 255 255 / .1);color:var(--text-color-dark)}.mode-toggle .usg-icon{width:24px;height:24px}.mode-toggle .moon-icon{display:none}.dark-mode .mode-toggle .sun-icon{display:none}.dark-mode .mode-toggle .moon-icon{display:block}.mode-toggle:hover{transform:scale(1.1) rotate(15deg)}.url-slug-generator-container .main-section{display:grid;grid-template-columns:1fr 320px;gap:30px}@media (max-width:800px){.url-slug-generator-container .main-section{grid-template-columns:1fr}}.input-group,.control-group{margin-bottom:15px}.input-group label,.control-group label{display:block;margin-bottom:8px;font-weight:600;font-size:.95rem}.input-field,select,input[type="number"]{width:100%;padding:12px 10px;border:2px solid var(--border-light);border-radius:12px;font-size:1rem;transition:all 0.3s ease;background:rgb(255 255 255 / .1);box-sizing:border-box}.dark-mode .input-field,.dark-mode select,.dark-mode input[type="number"]{background:rgb(0 0 0 / .2);border-color:var(--border-dark);color:var(--text-color-dark)}.dark-mode select option{background:var(--bg-dark);color:var(--text-color-dark)}.input-field:focus,select:focus,input[type="number"]:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgb(102 126 234 / .2)}.controls{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}.options-group{margin-top:20px}.options-wrapper{display:flex;gap:20px;flex-wrap:wrap;margin-top:8px}.checkbox-wrapper{display:flex;align-items:center;gap:8px}.checkbox-wrapper input[type="checkbox"]{width:18px;height:18px;accent-color:var(--primary-color)}.sidebar{display:flex;flex-direction:column;gap:20px}.output-section{background:rgb(248 250 252 / .1);border-radius:15px;padding:20px;border:1px solid var(--border-light)}.dark-mode .output-section{background:rgb(0 0 0 / .15);border-color:var(--border-dark)}.output-group h3{margin-bottom:10px;color:var(--primary-color);font-size:1.1rem;font-weight:600}.output-display{background:rgb(255 255 255 / .7);padding:15px;border-radius:10px;font-family:'Courier New',monospace;word-break:break-all;position:relative;min-height:50px;display:flex;align-items:center}.dark-mode .output-display{background:rgb(0 0 0 / .3);color:var(--text-color-dark)}.copy-btn{position:absolute;top:10px;right:10px;background:var(--primary-color);color:#fff;border:none;border-radius:6px;padding:6px 12px;cursor:pointer;font-size:.8rem;transition:all 0.3s ease;opacity:.8}.copy-btn:hover{opacity:1;transform:translateY(-2px)}.copy-btn.copied{background:#48bb78}.seo-score-display{flex-direction:column;align-items:flex-start}.score-bar-container{width:100%;height:8px;background:var(--border-light);border-radius:4px;overflow:hidden;margin-bottom:10px}.dark-mode .score-bar-container{background:var(--border-dark)}.score-bar{height:100%;background:linear-gradient(90deg,#ff6b6b,#ffd93d,#6bcf7f);transition:width 0.5s ease;border-radius:4px}.score-text{font-size:.9rem;font-weight:500}.seo-tips{background:rgb(72 187 120 / .05);padding:20px;border-radius:15px;border:1px solid rgba(72,187,120,,.2)}.dark-mode .seo-tips{background:rgb(72 187 120 / .1);border-color:rgb(72 187 120 / .3)}.seo-tips h4{margin-bottom:10px}.seo-tips ul{list-style:none;padding-left:0}.seo-tips li{margin-bottom:8px;opacity:.9}.tip-icon{margin-right:5px}