.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:28px;justify-content:center}.mode-tab{background:transparent;border:none;padding:14px 32px;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}.encrypt-options{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:24px;padding:24px;margin-bottom:24px;border:1px solid var(--gray-200);display:grid;grid-template-columns:repeat(4, 1fr);gap:20px}.option-group label{display:block;font-size:0.75rem;font-weight:600;color:var(--gray-500);margin-bottom:12px}.key-buttons{display:flex;gap:10px}.key-btn{background:var(--gray-100);border:1px solid var(--gray-200);padding:8px 20px;border-radius:40px;font-size:0.8rem;cursor:pointer;transition:all 0.2s}.key-btn.active{background:#10b981;border-color:#10b981;color:white}.select-input{width:100%;padding:10px 14px;border:1px solid var(--gray-200);border-radius:12px;background:white;font-size:0.85rem;cursor:pointer}.key-iv-section{background:var(--gray-50);border-radius:24px;padding:20px;margin-bottom:24px}.key-input-group,.iv-input-group{margin-bottom:16px}.key-input-group label,.iv-input-group label{display:block;font-size:0.8rem;font-weight:600;color:var(--gray-700);margin-bottom:8px}.input-wrapper{display:flex;gap:10px;align-items:center}.key-input,.iv-input{flex:1;padding:12px 16px;border:1px solid var(--gray-200);border-radius:16px;font-family:'Fira Code',monospace;font-size:0.85rem;background:white}.key-input:focus,.iv-input:focus{outline:none;border-color:#10b981;box-shadow:0 0 0 3px rgba(16,185,129,0.1)}.icon-btn{background:var(--gray-100);border:1px solid var(--gray-200);padding:10px 14px;border-radius:12px;cursor:pointer;transition:all 0.2s;color:var(--gray-600)}.icon-btn:hover{background:#10b981;border-color:#10b981;color:white}.key-strength{margin-top:8px;font-size:0.7rem}.key-strength.weak{color:#ef4444}.key-strength.medium{color:#f59e0b}.key-strength.strong{color:#10b981}.iv-hint{font-size:0.65rem;color:var(--gray-400);margin-top:6px}.editor-container{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}.editor-panel{background:white;border-radius:24px;overflow:hidden;border:1px solid var(--gray-200);transition:all 0.3s}.editor-panel:hover{box-shadow:0 8px 30px rgba(0,0,0,0.08)}.panel-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)}.panel-title{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--gray-700)}.panel-title i{color:#10b981}.panel-actions{display:flex;gap:8px}.action-btn{background:transparent;border:none;padding:8px 16px;border-radius:40px;cursor:pointer;transition:all 0.2s;font-size:0.8rem;display:inline-flex;align-items:center;gap:6px;color:var(--gray-600)}.action-btn:hover{background:var(--gray-100);color:#10b981}.btn-primary.action-btn{background:linear-gradient(135deg, #10b981, #059669);color:white}.btn-primary.action-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(16,185,129,0.3)}.input-textarea{width:100%;min-height:250px;padding:20px;font-family:'Fira Code',monospace;font-size:13px;line-height:1.6;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0}.input-textarea:focus{outline:none}.output-wrapper{min-height:250px;max-height:300px;overflow:auto;background:#1a1a2e}.output-textarea{margin:0;padding:20px;font-family:'Fira Code',monospace;font-size:13px;line-height:1.6;color:#e0e0e0;white-space:pre-wrap;word-break:break-all}.panel-footer{padding:8px 20px;background:var(--gray-50);border-top:1px solid var(--gray-200);font-size:0.7rem;color:var(--gray-500)}.encrypt-info{background:linear-gradient(135deg, #d1fae5, #a7f3d0);border-radius:20px;padding:16px;margin-bottom:24px}.info-header{display:flex;align-items:center;gap:8px;font-weight:600;color:#065f46;margin-bottom:12px}.info-content{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px}.info-row{display:flex;flex-direction:column;gap:4px}.info-row span{font-size:0.7rem;color:#065f46;opacity:0.8}.info-row strong{font-size:0.85rem;color:#065f46}.info-section{margin-top:20px}.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:1024px){.encrypt-options{grid-template-columns:repeat(2, 1fr)}.info-content{grid-template-columns:repeat(2, 1fr)}.info-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:900px){.editor-container{grid-template-columns:1fr}.mode-tab{min-width:auto;padding:10px 20px}}@media (max-width:768px){.encrypt-options{grid-template-columns:1fr}.info-content{grid-template-columns:1fr}.info-grid{grid-template-columns:1fr}.core-stats{gap:12px}.core-stat{padding:12px 20px}}