body{background:#f8fafc;color:#111;font-family:system-ui}header{background:linear-gradient(135deg,#0b132b,#1c2541);color:#fff;padding:2rem 0}header h1,header h2{text-align:center;margin:.25rem 0}header h2{font-size:1.05rem;font-weight:500;opacity:.9}.card{border-color:#e2e8f0}.ad-box{background:#eef2f7;border:2px dashed #a8b3c0;display:flex;align-items:center;justify-content:center;color:#6b7280;font-weight:600}.ad-top{width:100%;max-width:728px;height:90px;margin:0 auto 1rem}.ad-side{width:100%;max-width:300px;height:250px;margin:0 auto 1rem}.btn-toolbar .btn{margin-right:.5rem;margin-bottom:.5rem}.favorite.active .bi-star,.favorite.active .bi-star-fill{color:#f59f00}.results-key{font-weight:700;font-size:1.125rem}canvas#growthChart{width:100%;max-width:600px;height:300px;background:#fff;border:1px solid #e2e8f0;border-radius:.25rem}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}footer{background:#0f172a;color:#e5e7eb;padding:1.5rem 0}footer a{color:#cbd5e1;text-decoration:none}footer a:hover{text-decoration:underline}