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h2{text-align:center;font-size:1.8rem;margin-bottom:.5rem}.difficulty-label{text-align:center;color:var(--text-secondary);font-size:.95rem;margin-bottom:.5rem}.difficulty-label strong{color:var(--primary);font-size:1.3rem}.difficulty-slider{width:100%;height:8px;border-radius:5px;background:var(--border);outline:none;-webkit-appearance:none;appearance:none;cursor:pointer}.difficulty-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));cursor:pointer;transition:all .3s;box-shadow:0 2px 8px #6366f166}.difficulty-slider::-webkit-slider-thumb:hover{transform:scale(1.2);box-shadow:0 4px 12px #6366f199}.difficulty-slider::-moz-range-thumb{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));cursor:pointer;border:none;transition:all .3s;box-shadow:0 2px 8px #6366f166}.difficulty-slider::-moz-range-thumb:hover{transform:scale(1.2);box-shadow:0 4px 12px #6366f199}.difficulty-description{text-align:center;color:var(--text-secondary);font-size:.95rem;min-height:24px}.difficulty-description p{margin:0;transition:all .3s}.modal-overlay{position:fixed;inset:0;background-color:#000000bf;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;animation:fadeIn .2s ease-in-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background-color:#1a1a1a;border:2px solid #333;border-radius:12px;max-width:600px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 10px 40px #00000080;animation:slideUp .3s ease-out}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:2px solid #333}.modal-header h2{margin:0;color:#fff;font-size:1.5rem}.modal-close{background:none;border:none;color:#999;font-size:2rem;cursor:pointer;padding:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s}.modal-close:hover{background-color:#333;color:#fff}.modal-body{padding:1.5rem;color:#d4d4d4;line-height:1.6}.modal-body p{margin-bottom:1rem}.modal-body h3{color:#fff;margin-top:1.5rem;margin-bottom:.75rem;font-size:1.25rem}.color-examples{margin-top:1.5rem;display:flex;flex-direction:column;gap:1rem}.example-row{display:flex;align-items:center;gap:1rem}.example-row .tile{width:50px;height:50px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;border:2px solid;border-radius:4px;flex-shrink:0}.example-row .tile-green{background-color:#6aaa64;border-color:#6aaa64;color:#fff}.example-row .tile-yellow{background-color:#c9b458;border-color:#c9b458;color:#fff}.example-row .tile-gray{background-color:#787c7e;border-color:#787c7e;color:#fff}.example-row span{flex:1;color:#d4d4d4}.modal-footer{padding:1.5rem;border-top:2px solid #333;display:flex;justify-content:center}.modal-footer .btn-primary{padding:.75rem 2rem;font-size:1rem;background-color:#3b82f6;border:none;color:#fff;border-radius:8px;cursor:pointer;font-weight:700;transition:all .2s}.modal-footer .btn-primary:hover{background-color:#2563eb;transform:translateY(-2px);box-shadow:0 4px 12px #3b82f666}@media(max-width:768px){.modal-content{max-height:85vh;margin:1rem}.modal-header h2{font-size:1.25rem}.modal-body{padding:1rem}.example-row{flex-direction:column;align-items:flex-start;gap:.5rem}.example-row .tile{width:45px;height:45px;font-size:1.25rem}}@media(prefers-reduced-motion:no-preference){*{scroll-behavior:smooth}}