.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)}.encrypt-options{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:24px;padding:20px 24px;margin-bottom:24px;border:1px solid var(--gray-200);display:flex;flex-wrap:wrap;gap:32px}.option-group{flex:1;min-width:180px}.option-title{font-weight:600;font-size:0.85rem;color:var(--gray-700);margin-bottom:12px;display:block}.select-input{width:100%;padding:10px 14px;border:1px solid var(--gray-300);border-radius:12px;background:white;font-size:0.85rem;cursor:pointer}.key-section{background:linear-gradient(135deg, #f0fdf4, #dcfce7);border-radius:24px;padding:20px;margin-bottom:24px;border:1px solid #bbf7d0}.key-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-weight:600;color:#065f46}.key-btn{background:transparent;border:1px solid #bbf7d0;padding:6px 16px;border-radius:30px;cursor:pointer;font-size:0.75rem;transition:all 0.2s;color:#065f46}.key-btn:hover{background:#a7f3d0}.key-input-wrapper{display:flex;align-items:center;gap:12px;margin-bottom:12px}.key-input{flex:1;padding:14px 18px;border:1px solid var(--gray-300);border-radius:16px;font-family:monospace;font-size:0.9rem;background:white}.key-input:focus{outline:none;border-color:#10b981;box-shadow:0 0 0 3px rgba(16,185,129,0.1)}.eye-btn{background:var(--gray-100);border:none;padding:10px 14px;border-radius:12px;cursor:pointer;color:var(--gray-500)}.key-strength{margin-bottom:8px}.strength-bar{display:block;height:6px;background:var(--gray-200);border-radius:3px;overflow:hidden;margin-bottom:6px}.strength-fill{display:block;height:100%;background:linear-gradient(90deg, #f59e0b, #10b981);border-radius:3px;width:0%;transition:width 0.3s}.strength-text{font-size:0.7rem;color:var(--gray-500)}.key-hint,.iv-hint{font-size:0.7rem;color:var(--gray-500);margin-top:8px}.iv-section{background:var(--gray-50);border-radius:20px;padding:16px 20px;margin-bottom:24px;border:1px solid var(--gray-200)}.iv-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-weight:500;color:var(--gray-700)}.iv-input{width:100%;padding:12px 16px;border:1px solid var(--gray-300);border-radius:12px;font-family:monospace}.data-section{margin-bottom:24px}.data-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-weight:500}.data-actions{display:flex;gap:8px}.action-btn-sm{background:transparent;border:none;padding:6px 12px;border-radius:30px;cursor:pointer;font-size:0.75rem;transition:all 0.2s;color:var(--gray-600)}.action-btn-sm:hover{background:var(--gray-100);color:#10b981}.data-textarea{width:100%;min-height:200px;padding:18px;border:1px solid var(--gray-300);border-radius:20px;font-family:'Fira Code',monospace;font-size:0.9rem;line-height:1.6;resize:vertical}.data-textarea:focus{outline:none;border-color:#10b981}.action-buttons{display:flex;justify-content:center;gap:16px;margin-bottom:24px;flex-wrap:wrap}.encrypt-btn{background:linear-gradient(135deg, #10b981, #059669);padding:12px 32px;font-size:1rem;border-radius:50px}.decrypt-btn{background:transparent;border:1px solid var(--gray-300);padding:12px 32px;border-radius:50px;font-weight:500;cursor:pointer;transition:all 0.3s}.decrypt-btn:hover{background:var(--gray-100);border-color:#10b981;color:#10b981}.btn-outline{background:transparent;border:1px solid var(--gray-300);padding:12px 28px;border-radius:50px;font-weight:500;cursor:pointer;transition:all 0.3s}.btn-outline:hover{background:var(--gray-100);border-color:#10b981;color:#10b981}.result-section{background:var(--gray-50);border-radius:20px;overflow:hidden;margin-top:24px}.result-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:white;border-bottom:1px solid var(--gray-200)}.result-content{padding:20px;font-family:'Fira Code',monospace;font-size:0.85rem;line-height:1.6;background:#1a1a2e;color:#e0e0e0;min-height:120px;word-break:break-all;white-space:pre-wrap}.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:#f0fdf4;border-radius:20px}.info-item{display:flex;align-items:center;gap:8px;font-size:0.8rem;color:#065f46}.info-item i{color:#10b981}@media (max-width:900px){.encrypt-options{flex-direction:column;gap:20px}.info-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:768px){.core-stats{gap:12px}.core-stat{padding:12px 20px}.info-grid{grid-template-columns:1fr}.action-buttons{flex-direction:column}.key-header{flex-direction:column;gap:12px;align-items:flex-start}}