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solid #ffffff1a;padding:.5rem .85rem;font-size:.8rem;transition:opacity .2s,transform .2s;position:absolute;bottom:125%;left:50%;transform:translate(-50%)translateY(4px);box-shadow:0 4px 15px #00000080}.word-tooltip:after{content:"";border:5px solid #0000;border-top-color:#0f1123f2;margin-left:-5px;position:absolute;top:100%;left:50%}.word-highlight:hover .word-tooltip{visibility:visible;opacity:1;transform:translate(-50%)translateY(0)}.mobile-header{display:none}@media (width<=768px){.mobile-header{-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-card);z-index:200;background:#080914f2;flex-shrink:0;align-items:center;gap:.75rem;padding:.65rem 1rem;display:flex;position:sticky;top:0}.mobile-logo{font-family:var(--font-title);background:linear-gradient(135deg, #fff 0%, var(--primary) 55%, var(--secondary) 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