.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}.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, #d1fae5, #a7f3d0);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#10b981;font-size:1.3rem}.core-stat-info{text-align:left}.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)}.key-section{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:24px;padding:24px;margin-bottom:24px;border:1px solid var(--gray-200)}.key-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;margin-bottom:20px}.key-header h3{font-size:1.1rem;display:flex;align-items:center;gap:8px;color:var(--gray-700)}.key-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.key-size-select{display:flex;align-items:center;gap:8px;background:var(--gray-100);padding:6px 16px;border-radius:40px}.key-size-select label{font-size:0.8rem;color:var(--gray-600)}.key-size-select select{background:white;border:1px solid var(--gray-200);padding:4px 8px;border-radius:20px;font-size:0.8rem}.key-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.key-card{background:white;border-radius:20px;border:1px solid var(--gray-200);overflow:hidden}.key-card-header{display:flex;align-items:center;gap:10px;padding:14px 20px;background:var(--gray-50);border-bottom:1px solid var(--gray-200);font-weight:600}.key-card-header i{font-size:1rem}.key-copy-btn,.key-save-btn{margin-left:auto;background:transparent;border:none;color:var(--gray-500);cursor:pointer;padding:6px 10px;border-radius:8px;transition:all 0.2s}.key-copy-btn:hover,.key-save-btn:hover{background:var(--gray-200);color:#10b981}.key-textarea{width:100%;min-height:180px;padding:16px;font-family:'Fira Code',monospace;font-size:0.75rem;line-height:1.5;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0}.key-textarea:focus{outline:none}.key-tip{padding:12px 16px;background:#dbeafe;font-size:0.7rem;color:#1e40af;display:flex;align-items:center;gap:6px}.key-tip.warning{background:#fef3c7;color:#92400e}.crypto-section{margin-bottom:24px}.crypto-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.crypto-card{background:white;border-radius:24px;border:1px solid var(--gray-200);overflow:hidden}.crypto-card-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200);font-weight:600}.crypto-card-header i{color:#10b981;margin-right:8px}.crypto-actions{display:flex;gap:8px}.icon-btn-sm{background:transparent;border:none;padding:6px 10px;border-radius:30px;cursor:pointer;transition:all 0.2s;color:var(--gray-500)}.icon-btn-sm:hover{background:var(--gray-200);color:#10b981}.crypto-textarea{width:100%;min-height:150px;padding:16px;font-family:'Inter',monospace;font-size:0.85rem;line-height:1.6;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0}.crypto-textarea:focus{outline:none}.crypto-stats{padding:8px 16px;background:var(--gray-50);font-size:0.7rem;color:var(--gray-500);text-align:right}.encrypt-btn,.decrypt-btn{width:calc(68%);margin:16px;padding:12px;font-size:0.9rem;border-radius:50px}.encrypt-btn{background:linear-gradient(135deg, #10b981, #059669)}.decrypt-btn{background:linear-gradient(135deg, #3b82f6, #1d4ed8)}.crypto-result{padding:16px;border-top:1px solid var(--gray-200)}.result-label{font-size:0.75rem;font-weight:500;color:var(--gray-600);margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}.copy-btn{background:transparent;border:none;color:var(--gray-500);cursor:pointer;font-size:0.7rem;padding:4px 10px;border-radius:30px}.copy-btn:hover{background:var(--gray-200);color:#10b981}.result-textarea{width:100%;min-height:120px;padding:12px;font-family:'Fira Code',monospace;font-size:0.75rem;line-height:1.5;border:1px solid var(--gray-200);border-radius:12px;resize:vertical;background:#1a1a2e;color:#e0e0e0}.result-textarea:focus{outline:none;border-color:#10b981}.info-section{margin-top:24px}.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:0.75rem;color:var(--gray-600)}.info-item i{color:#10b981}.divider{display:flex;align-items:center;gap:12px;margin-bottom:16px}.divider span{font-size:0.85rem;font-weight:500;color:var(--gray-600)}.divider::after{content:'';flex:1;height:1px;background:var(--gray-200)}@media (max-width:900px){.key-grid{grid-template-columns:1fr}.crypto-grid{grid-template-columns:1fr}.info-grid{grid-template-columns:repeat(2, 1fr)}.key-header{flex-direction:column;align-items:flex-start}}@media (max-width:480px){.core-stats{gap:12px}.core-stat{padding:12px 20px}.info-grid{grid-template-columns:1fr}.key-actions{flex-direction:column;align-items:flex-start;width:100%}.key-size-select{width:100%;justify-content:space-between}}