.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)}.mode-tabs{display:flex;gap:16px;margin-bottom:24px;justify-content:center}.mode-tab{background:transparent;border:none;padding:14px 28px;cursor:pointer;transition:all 0.3s;border-radius:20px;text-align:center;min-width:160px}.mode-tab i{font-size:1.3rem;color:var(--gray-400);margin-bottom:8px;display:block}.mode-tab span{display:block;font-weight:600;color:var(--gray-600);margin-bottom:4px}.mode-tab small{font-size:0.65rem;color:var(--gray-400)}.mode-tab.active{background:linear-gradient(135deg, #10b981, #059669);box-shadow:0 8px 25px rgba(16,185,129,0.3)}.mode-tab.active i,.mode-tab.active span,.mode-tab.active small{color:white}.key-config{margin-bottom:24px}.config-card{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:24px;overflow:hidden;border:1px solid var(--gray-200)}.config-header{display:flex;align-items:center;gap:10px;padding:16px 20px;background:var(--gray-50);border-bottom:1px solid var(--gray-200);font-weight:600;color:var(--gray-700)}.config-header i{color:#10b981}.config-body{padding:20px;display:flex;flex-direction:column;gap:20px}.config-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px}.config-row label{width:100px;font-size:0.85rem;font-weight:500;color:var(--gray-600);display:flex;align-items:center;gap:6px}.input-with-action{flex:1;display:flex;gap:8px;min-width:250px}.config-input{flex:1;padding:10px 16px;border:1px solid var(--gray-300);border-radius:12px;font-family:monospace;font-size:0.85rem}.config-input:focus{outline:none;border-color:#10b981;box-shadow:0 0 0 3px rgba(16,185,129,0.1)}.config-select{flex:1;padding:10px 16px;border:1px solid var(--gray-300);border-radius:12px;background:white;font-size:0.85rem;cursor:pointer}.action-icon-btn{background:var(--gray-100);border:none;width:38px;height:38px;border-radius:10px;cursor:pointer;transition:all 0.2s;color:var(--gray-600)}.action-icon-btn:hover{background:#10b981;color:white}.key-strength{padding:4px 12px;border-radius:30px;font-size:0.7rem;font-weight:500}.key-strength.weak{background:#fee2e2;color:#dc2626}.key-strength.medium{background:#fef3c7;color:#d97706}.key-strength.strong{background:#d1fae5;color:#10b981}.output-formats{display:flex;gap:20px;flex:1}.radio-label{display:flex;align-items:center;gap:6px;cursor:pointer;font-size:0.8rem}.radio-label input{accent-color:#10b981}.crypto-panel{display:flex;flex-direction:column;gap:20px;margin-bottom:24px}.editor-card{background:white;border-radius:20px;overflow:hidden;border:1px solid var(--gray-200)}.editor-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:var(--gray-50);border-bottom:1px solid var(--gray-200)}.editor-title{display:flex;align-items:center;gap:12px;font-weight:600;color:var(--gray-700)}.editor-title i{color:#10b981}.char-count{font-size:0.7rem;font-weight:normal;color:var(--gray-400);background:var(--gray-100);padding:2px 10px;border-radius:30px}.editor-actions{display:flex;gap:8px}.crypto-textarea{width:100%;min-height:180px;padding:20px;border:none;font-family:'Fira Code',monospace;font-size:0.85rem;line-height:1.6;resize:vertical;background:#1a1a2e;color:#e0e0e0}.crypto-textarea:focus{outline:none}.action-divider{display:flex;align-items:center;justify-content:center;gap:20px;margin:8px 0}.crypto-btn{padding:14px 32px;border-radius:50px;font-size:1rem;font-weight:600;cursor:pointer;transition:all 0.3s;border:none}.encrypt-btn{background:linear-gradient(135deg, #10b981, #059669);color:white;box-shadow:0 4px 15px rgba(16,185,129,0.3)}.encrypt-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(16,185,129,0.4)}.decrypt-btn{background:linear-gradient(135deg, #3b82f6, #1d4ed8);color:white;box-shadow:0 4px 15px rgba(59,130,246,0.3)}.decrypt-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(59,130,246,0.4)}.divider-line{width:1px;height:30px;background:var(--gray-300)}.swap-btn{background:transparent;border:1px solid var(--gray-300);padding:10px 20px;border-radius:40px;font-size:0.8rem;cursor:pointer;transition:all 0.2s;color:var(--gray-600)}.swap-btn:hover{background:var(--gray-100);color:#10b981;border-color:#10b981}.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}@media (max-width:900px){.info-grid{grid-template-columns:repeat(2, 1fr)}.config-row{flex-direction:column;align-items:flex-start}.config-row label{width:auto}.input-with-action{width:100%}}@media (max-width:768px){.core-stats{gap:12px}.core-stat{padding:12px 20px}.mode-tab{min-width:auto;padding:10px 18px}.output-formats{flex-wrap:wrap}.info-grid{grid-template-columns:1fr}}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}