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.stat-lbl{color:var(--text-soft);text-transform:uppercase;letter-spacing:.04em;font-size:.76rem;font-weight:600}.quick-stat .stat-val{color:var(--text);word-break:break-word;font-size:.92rem;font-weight:700}.clickable-card{color:inherit;cursor:pointer;text-decoration:none;transition:transform .15s,border-color .15s,box-shadow .15s;display:block}.clickable-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px #2563eb1a}.clickable-card h4{color:var(--primary)}@media (width<=768px){html{font-size:15px}header{padding:14px 12px 18px}.top-bar{justify-content:flex-end;gap:8px;margin:0 auto 10px}.top-bar .lang-btn,.top-bar button,.top-bar select{touch-action:manipulation;border-radius:8px;justify-content:center;align-items:center;min-height:40px;padding:8px 12px;font-size:.85rem;display:inline-flex}.lang-menu{min-width:160px;left:auto;right:0}.lang-option{min-height:40px;padding:9px 12px;font-size:.88rem}.logo{gap:8px;margin-bottom:6px}.logo 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a{justify-content:center;width:100%;min-height:40px}.share-actions-bar{flex-direction:column;align-items:stretch;gap:12px}.share-left{justify-content:center}.share-buttons{justify-content:center;width:100%}.share-btn{flex:auto;justify-content:center;min-height:40px}.embed-toggle-btn{justify-content:center;width:100%;min-height:40px}.embed-snippet-wrap{flex-direction:column}.copy-embed-btn{width:100%;min-height:40px}.quick-answer-card{border-radius:12px;margin:14px 0 20px;padding:16px 14px}.quick-main{font-size:1.05rem;line-height:1.45}.quick-details{grid-template-columns:1fr 1fr;gap:10px;padding:12px}.formula-card{margin:16px 0;padding:14px 16px}.formula-box{box-sizing:border-box;width:100%;padding:8px 12px;font-size:.95rem;overflow-x:auto}.page-card{border-radius:12px;margin:14px 0;padding:20px 14px}.footer-inner{grid-template-columns:1fr 1fr;gap:24px}.footer-links a{align-items:center;min-height:36px;padding:6px 0;display:inline-flex}}@media (width<=540px){header{padding:12px 10px 16px}.top-bar{gap:6px;margin-bottom:8px}.lang-btn,.top-bar button{min-height:38px;padding:7px 10px;font-size:.82rem}header h1,.header-tagline{font-size:1.25rem}header p{font-size:.84rem}.container{padding:12px 10px}.converter-card{border-radius:12px;padding:16px 12px}.quick-details{grid-template-columns:1fr;gap:8px}.popular-hero-grid{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr;gap:24px}}