.calculator{background:#fff;border-radius:12px;padding:25px;box-shadow:0 5px 20px rgba(0,0,0,0.04);margin-bottom:30px;margin-left:auto;margin-right:auto;box-sizing:border-box;max-width:1100px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;align-items:start;border:1px solid #e0e7ef}.calculator>h2{grid-column:1/-1;color:#1a4b5f;margin-bottom:20px;padding-bottom:12px;border-bottom:2px solid #6b9e9e;font-size:22px}.gender-group{display:flex;justify-content:center;gap:20px;margin-bottom:20px;grid-column:1/-1}.form-row{display:contents}.form-row.activity-with-button{display:grid;grid-column:1/-1;grid-template-columns:2fr 1fr;gap:15px;align-items:center}.form-row.activity-with-button .form-group:last-child{display:flex;align-items:center;justify-content:center}.form-group{min-width:0;text-align:center}.form-group label{display:block;margin-bottom:6px;font-weight:600;color:#2e546a;font-size:14px}.form-control{width:100%;padding:10px 12px;border:2px solid #d0ddee;border-radius:8px;font-size:15px;transition:border-color .3s;text-align:center;margin:0 auto;display:block;box-sizing:border-box;min-width:0}.form-control:focus{border-color:#1a4b5f;outline:none}.gender-option{display:flex;align-items:center;gap:8px}.gender-option input{width:18px;height:18px}.btn{background:#1a4b5f;color:#fff;border:0;padding:10px 20px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:background .3s;height:42px;white-space:nowrap;display:inline-block;line-height:22px;box-sizing:border-box}.btn:hover{background:#1a3f5c}.result-container{margin-top:25px;padding:18px;background:#fefcf5;border-radius:8px;border-right:5px solid #6b9e9e;display:none;grid-column:1/-1;box-sizing:border-box}.result-title{color:#1a4b5f;margin-bottom:12px;font-size:18px}.result-value{font-size:24px;font-weight:700;color:#1a3f5c;margin:8px 0}.result-details{margin-top:12px;color:#5a6c7d;font-size:14px}.calorie-goals{display:flex;justify-content:space-between;margin-top:20px;gap:15px;grid-column:1/-1;align-items:stretch;flex-wrap:wrap}.calorie-goal{flex:1 1 calc(33.333% - 10px);padding:14px;border-radius:8px;text-align:center;box-sizing:border-box;display:flex;flex-direction:column;justify-content:center;min-height:100px;transition:transform .15s,box-shadow .15s}.calorie-goal:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(0,0,0,0.04)}.goal-lose{background:#f2f6fc;border:1px solid #6b9e9e;color:#1a3f5c}.goal-maintain{background:#fefcf5;border:1px solid #ecdca8;color:#7a5c2e}.goal-gain{background:#f6f9fc;border:1px solid #d0ddee;color:#1a3f5c}.goal-title{font-weight:600;margin-bottom:8px;font-size:16px}.goal-calories{font-size:20px;font-weight:700;margin:5px 0;color:#1a3f5c}@media(max-width:1024px){.calculator{max-width:900px;padding:22px;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.form-row.activity-with-button{grid-template-columns:2fr 1fr;gap:12px}}@media(max-width:768px){.calculator{padding:20px;margin:15px;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.form-control{font-size:14px;padding:9px 10px}.btn{padding:10px 18px;height:40px;font-size:14px}.form-row.activity-with-button{align-items:center}.result-container{padding:12px;margin-top:18px}.result-title{font-size:16px;margin-bottom:8px}.result-value{font-size:20px;margin:6px 0}.result-details{font-size:12px;margin-top:8px}.calorie-goals{gap:10px;margin-top:15px}.calorie-goal{padding:10px;min-height:80px}.goal-title{font-size:14px;margin-bottom:5px}.goal-calories{font-size:16px;margin:3px 0}}@media(max-width:640px){.form-row.activity-with-button{grid-template-columns:1fr;gap:10px}.form-row.activity-with-button .form-group:last-child{justify-content:stretch}.btn{width:100%;display:block;text-align:center;height:auto;padding:12px 10px;font-size:15px}.form-control{padding:12px 10px;font-size:15px}}@media(max-width:480px){.calculator{padding:16px;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.form-control{padding:10px 8px;font-size:14px}.gender-group{flex-direction:row;gap:14px}.btn{padding:10px 8px;font-size:14px}.result-container{padding:10px;margin-top:15px}.result-title{font-size:14px;margin-bottom:6px}.result-value{font-size:18px;margin:5px 0}.result-details{font-size:11px;margin-top:6px}.calorie-goals{gap:8px;margin-top:12px}.calorie-goal{padding:8px;min-height:70px}.goal-title{font-size:13px;margin-bottom:4px}.goal-calories{font-size:14px;margin:2px 0}}@media(max-width:400px){.calculator{padding:14px;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.form-control{padding:8px 6px;font-size:13px}.btn{padding:8px 6px;font-size:13px}.result-container{padding:8px}.result-title{font-size:13px}.result-value{font-size:16px}.result-details{font-size:10px}.calorie-goal{padding:6px;min-height:60px}.goal-title{font-size:12px}.goal-calories{font-size:13px}}