.stats-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-bottom:30px}.stat-card{background:white;border-radius:20px;padding:20px;display:flex;align-items:center;gap:16px;border:1px solid var(--gray-200);transition:all 0.3s}.stat-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,0.1)}.stat-icon{width:50px;height:50px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--primary-color)}.stat-value{font-size:1.6rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.75rem;color:var(--gray-500)}.input-section{margin-bottom:24px}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:12px}.section-header h3{font-size:1rem;display:flex;align-items:center;gap:8px}.input-actions{display:flex;gap:8px;flex-wrap:wrap}.input-textarea{width:100%;min-height:250px;padding:16px;font-family:'Fira Code',monospace;font-size:0.85rem;border:1px solid var(--gray-300);border-radius:16px;resize:vertical;background:#1a1a2e;color:#e0e0e0;line-height:1.6}.input-textarea:focus{outline:none;border-color:var(--primary-color)}.input-footer{margin-top:8px;display:flex;justify-content:space-between;font-size:0.75rem;color:var(--gray-500);flex-wrap:wrap;gap:8px}.input-hint{color:var(--gray-400)}.calc-section{text-align:center;margin:24px 0}.calc-btn{padding:12px 40px;font-size:1rem}.result-section{background:white;border-radius:20px;border:1px solid var(--gray-200);overflow:hidden;margin-bottom:24px;animation:fadeIn 0.3s ease}.result-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:linear-gradient(135deg, var(--gray-50), #fafafa);border-bottom:1px solid var(--gray-200);flex-wrap:wrap;gap:12px}.result-header h3{font-size:1rem;display:flex;align-items:center;gap:8px}.result-actions{display:flex;gap:8px;flex-wrap:wrap}.result-stats{display:flex;gap:20px;padding:12px 20px;background:var(--gray-50);border-bottom:1px solid var(--gray-200)}.stat-badge{display:flex;align-items:center;gap:6px;font-size:0.85rem;font-weight:500}.stat-badge.valid{color:#10b981}.stat-badge.invalid{color:#ef4444}.result-table-wrapper{overflow-x:auto;padding:16px}.result-table{width:100%;border-collapse:collapse;font-size:0.8rem}.result-table th,.result-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--gray-200)}.result-table th{background:var(--gray-50);font-weight:600;position:sticky;top:0}.result-table .row-valid{background:#f0fdf4}.result-table .row-valid td:first-child{border-left:3px solid #10b981}.result-table .row-invalid{background:#fef2f2}.result-table .row-invalid td:first-child{border-left:3px solid #ef4444}.status-badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:0.7rem;font-weight:500}.status-badge.valid{background:#d1fae5;color:#065f46}.status-badge.invalid{background:#fee2e2;color:#991b1b}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-top:20px}.knowledge-card{background:var(--gray-50);border-radius:16px;padding:20px;text-align:center}.knowledge-card i{font-size:28px;color:var(--primary-color);margin-bottom:12px}.knowledge-card h4{font-size:0.85rem;margin-bottom:8px}.knowledge-card p{font-size:0.75rem;color:var(--gray-500);line-height:1.5}.region-reference{margin-top:24px}.region-grid{display:grid;grid-template-columns:repeat(6, 1fr);gap:8px;margin-top:16px}.region-item{display:flex;gap:8px;padding:6px 12px;background:var(--gray-50);border-radius:8px;font-size:0.75rem}.region-code{font-weight:600;color:var(--primary-color);font-family:monospace}.region-name{color:var(--gray-600)}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.stats-grid{grid-template-columns:repeat(2, 1fr)}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}.region-grid{grid-template-columns:repeat(3, 1fr)}}@media (max-width:600px){.stats-grid{grid-template-columns:1fr}.result-header{flex-direction:column;align-items:flex-start}.result-actions{width:100%;justify-content:flex-start}.knowledge-grid{grid-template-columns:1fr}.region-grid{grid-template-columns:repeat(2, 1fr)}}