.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, #2563eb, #1d4ed8);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:2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #2563eb);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:0.95rem}.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, #e0e7ff, #f0f4ff);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#2563eb;font-size:1.3rem}.core-stat-info{text-align:left}.core-stat-value{display:block;font-size:1.3rem;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:12px 32px;cursor:pointer;transition:all 0.3s;border-radius:60px;text-align:center;min-width:140px;font-weight:600;font-size:1rem}.mode-tab i{margin-right:8px}.mode-tab.active{background:linear-gradient(135deg, #2563eb, #1d4ed8);color:white;box-shadow:0 4px 12px rgba(37,99,235,0.3)}.encrypt-options{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:20px;padding:20px;margin-bottom:24px;border:1px solid var(--gray-200)}.option-group{margin-bottom:16px}.option-group:last-child{margin-bottom:0}.option-title{font-weight:600;font-size:0.85rem;color:var(--gray-700);margin-bottom:12px;display:block}.option-items{display:flex;flex-wrap:wrap;gap:16px;align-items:center}.checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:0.85rem;user-select:none}.checkbox-label input{display:none}.checkmark{width:18px;height:18px;border:2px solid var(--gray-400);border-radius:4px;display:inline-block;position:relative;transition:all 0.2s}.checkbox-label input:checked+.checkmark{background:#2563eb;border-color:#2563eb}.checkbox-label input:checked+.checkmark::after{content:'\f00c';font-family:'Font Awesome 6 Free';font-weight:900;font-size:10px;color:white;position:absolute;top:50%;left:50%;transform:translate(-50%, -50%)}.btn-secondary-sm{background:var(--gray-100);border:1px solid var(--gray-300);padding:6px 16px;border-radius:30px;font-size:0.8rem;cursor:pointer;transition:all 0.2s}.btn-secondary-sm:hover{background:#2563eb;color:white;border-color:#2563eb}.key-input-card,.iv-input-card,.data-input-card{background:white;border-radius:20px;border:1px solid var(--gray-200);margin-bottom:20px;overflow:hidden}.key-header,.iv-header,.data-header{display:flex;align-items:center;gap:10px;padding:14px 20px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200);font-weight:600;color:var(--gray-700)}.key-hint,.iv-hint{margin-left:auto;font-size:0.7rem;font-weight:normal;color:var(--gray-400)}.key-input-wrapper,.iv-input-wrapper{padding:16px}.key-textarea,.iv-textarea,.data-textarea{width:100%;min-height:80px;padding:12px;font-family:'Fira Code',monospace;font-size:0.8rem;border:1px solid var(--gray-200);border-radius:16px;resize:vertical;background:#1a1a2e;color:#e0e0e0}.key-textarea:focus,.iv-textarea:focus,.data-textarea:focus{outline:none;border-color:#2563eb}.data-textarea{min-height:150px}.key-actions,.iv-actions,.data-actions{display:flex;gap:8px;margin-top:12px;justify-content:flex-end}.action-buttons{display:flex;justify-content:center;gap:16px;margin:24px 0}.process-btn{background:linear-gradient(135deg, #2563eb, #1d4ed8);padding:12px 36px;font-size:1rem;border-radius:60px}.btn-outline{background:transparent;border:1px solid var(--gray-300);padding:12px 24px;border-radius:60px;font-weight:500;cursor:pointer;transition:all 0.3s;display:inline-flex;align-items:center;gap:8px}.btn-outline:hover{background:var(--gray-100);border-color:#2563eb;color:#2563eb}.result-card{margin-top:24px;background:white;border-radius:20px;border:1px solid var(--gray-200);overflow:hidden;animation:fadeIn 0.3s ease}.result-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)}.result-title{display:flex;align-items:center;gap:8px;font-weight:600;color:#10b981}.result-content-wrapper{padding:20px}.result-content{background:#1a1a2e;color:#e0e0e0;padding:16px;border-radius:16px;font-family:'Fira Code',monospace;font-size:0.8rem;word-break:break-all;min-height:100px;max-height:200px;overflow-y:auto}.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:900px){.option-items{flex-direction:column;align-items:flex-start}.info-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:768px){.core-stats{gap:12px}.core-stat{padding:12px 20px}.mode-tab{padding:10px 20px;min-width:auto}.action-buttons{flex-direction:column;align-items:stretch}.info-grid{grid-template-columns:1fr}}