.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, #fce4ec, #f8bbd0);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:24px;color:#e91e63}.stat-value{font-size:1.6rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.75rem;color:var(--gray-500)}.calculator-main{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:32px}.input-panel,.result-panel{background:white;border-radius:20px;border:1px solid var(--gray-200);padding:24px}.panel-title{font-size:1rem;font-weight:600;color:var(--gray-700);margin-bottom:20px;display:flex;align-items:center;gap:8px}.panel-title i{color:var(--primary-color)}.input-group{margin-bottom:20px}.input-group label{display:flex;justify-content:space-between;font-size:0.85rem;font-weight:500;color:var(--gray-700);margin-bottom:6px}.input-group .unit{color:var(--gray-400);font-weight:400}.input-group .input-field{width:100%;padding:10px 14px;border:1px solid var(--gray-300);border-radius:12px;font-size:0.95rem}.input-group .input-field:focus{outline:none;border-color:var(--primary-color)}.range-hint{font-size:0.65rem;color:var(--gray-400);margin-top:4px}.formula-select{margin-bottom:20px}.formula-select label{display:block;font-size:0.85rem;font-weight:500;color:var(--gray-700);margin-bottom:6px}.formula-select .select-input{width:100%;padding:10px 14px;border:1px solid var(--gray-300);border-radius:12px;font-size:0.9rem;background:white}.calculate-btn{width:100%;padding:14px;font-size:1rem;border-radius:14px;margin-top:8px}.result-content{min-height:300px;display:flex;align-items:center;justify-content:center}.placeholder{text-align:center;color:var(--gray-400)}.placeholder i{font-size:48px;margin-bottom:16px;display:block}.placeholder p{font-size:1rem;font-weight:500}.placeholder span{font-size:0.8rem}.result-data{width:100%}.result-main{text-align:center;padding:20px;background:linear-gradient(135deg, #fce4ec, #f8bbd0);border-radius:16px;margin-bottom:20px}.result-main .label{font-size:0.8rem;color:var(--gray-600);margin-bottom:8px}.result-main .weight{font-size:2.8rem;font-weight:800;color:#e91e63}.result-main .weight-unit{font-size:1.2rem;color:var(--gray-600)}.result-main .week{font-size:1rem;color:var(--gray-600);margin-top:4px}.result-detail-grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:12px}.result-detail-item{background:var(--gray-50);border-radius:12px;padding:12px 16px;text-align:center}.result-detail-item .label{font-size:0.65rem;color:var(--gray-500)}.result-detail-item .value{font-size:1.1rem;font-weight:600;color:var(--gray-800);margin-top:2px}.percentile-indicator{margin-top:16px;padding:12px 16px;background:var(--gray-50);border-radius:12px;text-align:center}.percentile-bar{height:8px;background:var(--gray-200);border-radius:4px;overflow:hidden;margin-top:8px}.percentile-fill{height:100%;border-radius:4px;transition:width 0.6s ease}.reference-section{margin-bottom:24px}.reference-table-wrapper{overflow-x:auto;margin-top:16px;border-radius:16px;border:1px solid var(--gray-200)}.reference-table{width:100%;border-collapse:collapse;font-size:0.8rem}.reference-table th,.reference-table td{padding:10px 16px;text-align:center;border-bottom:1px solid var(--gray-200)}.reference-table th{background:var(--gray-50);font-weight:600}.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:#e91e63;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}.disclaimer{font-size:0.7rem;color:var(--gray-500);margin-top:8px}@media (max-width:900px){.calculator-main{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2, 1fr)}.result-detail-grid{grid-template-columns:1fr}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:600px){.stats-grid{grid-template-columns:1fr}.knowledge-grid{grid-template-columns:1fr}.result-main .weight{font-size:2rem}}