.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, #8b5cf6, #6d28d9);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, #8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.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, #ede9fe, #f3e8ff);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#8b5cf6;font-size:1.3rem}.core-stat-info{text-align:left}.core-stat-value{display:block;font-size:1.3rem;font-weight:700;color:var(--gray-800)}.core-stat-label{font-size:0.7rem;color:var(--gray-500)}.converter-tabs{display:flex;gap:16px;margin-bottom:24px;justify-content:center}.converter-tab{background:transparent;border:2px solid var(--gray-200);padding:14px 28px;cursor:pointer;transition:all 0.3s;border-radius:60px;text-align:center;min-width:200px}.converter-tab i{font-size:1.2rem;margin-right:8px}.converter-tab span{font-weight:600}.converter-tab small{display:block;font-size:0.7rem;color:var(--gray-400);margin-top:4px}.converter-tab.active{background:linear-gradient(135deg, #8b5cf6, #6d28d9);border-color:#8b5cf6;color:white}.converter-tab.active small{color:rgba(255,255,255,0.7)}.input-card{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:24px;padding:24px;margin-bottom:24px;border:1px solid var(--gray-200)}.card-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-weight:600;color:var(--gray-700)}.card-header i{color:#8b5cf6;font-size:1.1rem}.header-hint{margin-left:auto;font-size:0.7rem;font-weight:normal;color:var(--gray-400)}.hex-textarea{width:100%;min-height:120px;padding:16px;font-family:'Fira Code',monospace;font-size:0.9rem;border:1px solid var(--gray-300);border-radius:16px;resize:vertical;background:white}.hex-textarea:focus{outline:none;border-color:#8b5cf6;box-shadow:0 0 0 3px rgba(139,92,246,0.1)}.number-input-field{width:100%;padding:16px;font-family:'Fira Code',monospace;font-size:1rem;border:1px solid var(--gray-300);border-radius:16px;background:white}.number-input-field:focus{outline:none;border-color:#8b5cf6;box-shadow:0 0 0 3px rgba(139,92,246,0.1)}.number-radix{display:flex;gap:24px;margin-top:16px}.number-radix label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:0.85rem}.input-hint{font-size:0.7rem;color:var(--gray-400);margin-top:12px;padding:8px 12px;background:var(--gray-50);border-radius:12px}.convert-options{background:var(--gray-50);border-radius:24px;padding:20px;margin-bottom:24px}.option-group{margin-bottom:20px}.option-group label{display:block;font-size:0.75rem;font-weight:600;color:var(--gray-500);margin-bottom:12px}.type-buttons{display:flex;flex-wrap:wrap;gap:12px}.type-btn{background:white;border:1px solid var(--gray-200);padding:10px 18px;border-radius:60px;cursor:pointer;transition:all 0.2s;text-align:center;min-width:100px}.type-btn span{display:block;font-weight:600;font-size:0.85rem}.type-btn small{font-size:0.65rem;color:var(--gray-400)}.type-btn.active{background:#8b5cf6;border-color:#8b5cf6;color:white}.type-btn.active small{color:rgba(255,255,255,0.7)}.endian-buttons{display:flex;gap:16px;flex-wrap:wrap}.endian-btn{background:white;border:1px solid var(--gray-200);padding:12px 24px;border-radius:60px;cursor:pointer;transition:all 0.2s;text-align:center;flex:1}.endian-btn i{margin-right:8px}.endian-btn span{font-weight:600}.endian-btn small{display:block;font-size:0.65rem;color:var(--gray-400);margin-top:4px}.endian-btn.active{background:#8b5cf6;border-color:#8b5cf6;color:white}.endian-btn.active small{color:rgba(255,255,255,0.7)}.convert-btn{width:100%;padding:14px;font-size:1rem;border-radius:60px;margin-bottom:24px}.result-area{margin-bottom:24px;animation:fadeIn 0.3s ease}.result-card{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:24px;overflow:hidden;border:1px solid var(--gray-200)}.result-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200);font-weight:600}.copy-result-btn{background:transparent;border:none;padding:6px 14px;border-radius:30px;cursor:pointer;font-size:0.8rem;color:var(--gray-600);transition:all 0.2s}.copy-result-btn:hover{background:#8b5cf6;color:white}.result-content{padding:24px;font-family:'Fira Code',monospace;font-size:1rem;word-break:break-all;background:#1a1a2e;color:#e0e0e0}.formatted-area{background:var(--gray-50);border-radius:24px;margin-bottom:24px;overflow:hidden}.formatted-header{padding:12px 20px;background:var(--gray-100);font-weight:500;border-bottom:1px solid var(--gray-200)}.formatted-content{padding:20px;font-family:'Fira Code',monospace;font-size:0.85rem}.byte-group{display:inline-block;background:#2d2d44;padding:8px 12px;border-radius:12px;margin:4px;font-family:monospace}.history-section{margin-bottom:24px}.history-list{max-height:200px;overflow-y:auto;margin-top:12px}.history-item{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:var(--gray-50);border-radius:16px;margin-bottom:8px;cursor:pointer;transition:all 0.2s}.history-item:hover{background:var(--gray-100);transform:translateX(4px)}.history-input{font-family:monospace;font-size:0.8rem;color:var(--gray-600)}.history-output{font-family:monospace;font-size:0.8rem;color:#8b5cf6;font-weight:500}.info-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;padding:16px;background:var(--gray-50);border-radius:20px}.info-item{display:flex;align-items:center;gap:8px;font-size:0.8rem;color:var(--gray-600)}.info-item i{color:#10b981}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.type-buttons{justify-content:center}.info-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:768px){.converter-tab{min-width:auto;padding:10px 16px}.endian-buttons{flex-direction:column}.info-grid{grid-template-columns:1fr}.core-stats{gap:12px}.core-stat{padding:12px 20px}}