.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)}.input-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:28px;padding:24px;margin-bottom:24px;border:1px solid var(--gray-200)}.input-group{margin-bottom:24px}.input-header{display:flex;align-items:center;gap:8px;margin-bottom:12px;font-weight:600;color:var(--gray-700)}.input-header i{color:#10b981}.input-header span{flex:1}.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-100);color:#10b981}.message-textarea{width:100%;min-height:150px;padding:16px;border:1px solid var(--gray-200);border-radius:20px;font-family:'Inter',monospace;font-size:0.9rem;line-height:1.6;resize:vertical;background:white;transition:all 0.3s}.message-textarea:focus{outline:none;border-color:#10b981;box-shadow:0 0 0 3px rgba(16,185,129,0.1)}.key-input{width:100%;padding:14px 16px;border:1px solid var(--gray-200);border-radius:60px;font-size:0.9rem;font-family:monospace;background:white;transition:all 0.3s}.key-input:focus{outline:none;border-color:#10b981;box-shadow:0 0 0 3px rgba(16,185,129,0.1)}.encoding-options{background:var(--gray-50);border-radius:20px;padding:16px 20px;margin-bottom:24px;display:flex;flex-wrap:wrap;gap:24px}.option-row{flex:1;min-width:180px}.option-row label{display:block;font-size:0.75rem;font-weight:600;color:var(--gray-500);margin-bottom:8px}.format-buttons{display:flex;gap:10px;flex-wrap:wrap}.format-btn{background:white;border:1px solid var(--gray-200);padding:8px 20px;border-radius:40px;font-size:0.8rem;cursor:pointer;transition:all 0.2s}.format-btn.active{background:#10b981;border-color:#10b981;color:white}.charset-select{padding:8px 16px;border:1px solid var(--gray-200);border-radius:40px;background:white;font-size:0.85rem;cursor:pointer}.encrypt-btn{width:100%;padding:14px;font-size:1rem;border-radius:60px}.result-area{background:white;border-radius:24px;overflow:hidden;border:1px solid var(--gray-200);animation:fadeIn 0.3s ease}.result-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200)}.result-title{display:flex;align-items:center;gap:8px;font-weight:600;color:var(--gray-700)}.result-actions{display:flex;gap:12px}.action-btn{background:transparent;border:1px solid var(--gray-200);padding:6px 14px;border-radius:30px;cursor:pointer;font-size:0.75rem;transition:all 0.2s}.action-btn:hover{background:#10b981;border-color:#10b981;color:white}.result-content{padding:20px 24px}.result-item{display:flex;align-items:flex-start;gap:16px;padding:12px 0;border-bottom:1px solid var(--gray-100)}.result-item:last-child{border-bottom:none}.result-label{width:110px;font-size:0.8rem;font-weight:500;color:var(--gray-600)}.result-value{flex:1;font-family:monospace;font-size:0.85rem;word-break:break-all;color:var(--gray-800)}.hash-value{font-size:1rem;font-weight:600;color:#10b981}.code-example{margin:20px 24px 24px;background:#1a1a2e;border-radius:16px;overflow:hidden}.code-header{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#2d2d44;color:#a0a0c0;font-size:0.8rem}.code-header i{color:#10b981}.code-header span{flex:1}.code-block{padding:16px;font-family:'Fira Code',monospace;font-size:0.75rem;line-height:1.5;color:#e0e0e0;overflow-x:auto;margin:0}.info-section{margin-top:24px}.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)}.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:768px){.core-stats{gap:12px}.core-stat{padding:12px 20px}.encoding-options{flex-direction:column;gap:16px}.info-grid{grid-template-columns:repeat(2, 1fr)}.result-item{flex-direction:column;gap:4px}.result-label{width:auto}}