.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #10b981, #059669);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #10b981);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.core-stats{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.core-stat{background:white;border-radius:60px;padding:16px 28px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200)}.core-stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #d1fae5, #a7f3d0);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#10b981;font-size:1.3rem}.core-stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.core-stat-label{font-size:0.7rem;color:var(--gray-500)}.input-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:32px;padding:24px;margin-bottom:24px;border:1px solid var(--gray-200)}.input-group{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding:8px 8px 8px 20px;background:white;border-radius:60px;border:1px solid var(--gray-200)}.input-icon{color:#10b981;font-size:1.1rem}.number-input{flex:1;border:none;padding:14px 0;font-size:1rem;font-family:'Fira Code',monospace;background:transparent}.number-input:focus{outline:none}.input-actions{display:flex;gap:8px}.icon-btn{background:var(--gray-100);border:none;width:40px;height:40px;border-radius:50%;cursor:pointer;transition:all 0.2s;color:var(--gray-600)}.icon-btn:hover{background:#10b981;color:white;transform:rotate(180deg)}.bit-width-selector{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.bit-width-selector label{font-weight:500;color:var(--gray-700)}.bit-buttons{display:flex;gap:12px}.bit-btn{background:var(--gray-100);border:1px solid var(--gray-200);padding:8px 24px;border-radius:40px;cursor:pointer;transition:all 0.2s;font-weight:500}.bit-btn.active{background:#10b981;border-color:#10b981;color:white;box-shadow:0 4px 12px rgba(16,185,129,0.3)}.visualization-card{background:linear-gradient(135deg, #1a1a2e, #16213e);border-radius:24px;padding:24px;margin-bottom:24px}.visualization-card h3{color:white;margin-bottom:20px;font-size:1rem;display:flex;align-items:center;gap:8px}.bit-visualization{text-align:center}.bit-label{color:#a0a0c0;font-size:0.7rem;margin-bottom:12px}.bit-grid{display:flex;justify-content:center;flex-wrap:wrap;gap:6px;margin:16px 0}.bit-cell{width:40px;height:40px;background:#0f0f23;border-radius:12px;display:flex;align-items:center;justify-content:center;font-family:'Fira Code',monospace;font-weight:600;font-size:1rem;transition:all 0.2s;box-shadow:0 2px 8px rgba(0,0,0,0.2)}.bit-cell.bit-1{background:#10b981;color:white;box-shadow:0 0 12px rgba(16,185,129,0.4)}.bit-cell.bit-0{background:#2d2d44;color:#6b6b8d}.bit-arrow{color:#a0a0c0;margin:16px 0;font-size:0.8rem}.results-card{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}.result-group{background:white;border-radius:24px;overflow:hidden;border:1px solid var(--gray-200)}.result-header{background:linear-gradient(135deg, #f8fafc, #fff);padding:14px 20px;border-bottom:1px solid var(--gray-200);font-weight:600;display:flex;align-items:center;gap:8px}.result-header i{color:#10b981}.result-content{padding:16px}.result-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--gray-100)}.result-row:last-child{border-bottom:none}.result-label{width:70px;font-size:0.8rem;color:var(--gray-500);font-weight:500}.result-value{flex:1;font-family:'Fira Code',monospace;font-size:0.85rem;color:var(--gray-800);word-break:break-all}.copy-result{background:transparent;border:none;color:var(--gray-400);cursor:pointer;padding:4px 8px;border-radius:6px;transition:all 0.2s}.copy-result:hover{background:var(--gray-100);color:#10b981}.formula-card{background:#1e293b;border-radius:24px;padding:20px}.formula-card h3{color:#e2e8f0;margin-bottom:16px;font-size:0.9rem;display:flex;align-items:center;gap:8px}.formula-card pre{background:#0f172a;padding:16px;border-radius:16px;overflow-x:auto}.formula-card code{font-family:'Fira Code',monospace;font-size:0.75rem;color:#a5f3fc;line-height:1.6}@media (max-width:768px){.results-card{grid-template-columns:1fr}.bit-cell{width:30px;height:30px;font-size:0.8rem}.core-stats{gap:12px}.core-stat{padding:12px 20px}.input-group{flex-direction:column;border-radius:30px;padding:16px}.icon-btn{width:36px;height:36px}}