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var(--border);color:#ff6b6b;width:34px;height:34px;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:18px;transition:.2s}.icon-btn:hover{background:#ff6b6b1f;border-color:#ff6b6b}.back-to-top{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;background:var(--accent);color:#04130c;display:flex;align-items:center;justify-content:center;font-size:22px;border:0;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:.3s;z-index:996;box-shadow:0 8px 24px var(--accent-glow)}.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:var(--accent-2)}.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s cubic-bezier(.16,1,.3,1)}.reveal.visible{opacity:1;transform:none}@media (max-width: 1199px){#header{left:calc(-1 * var(--sidebar-w))}#header.open{left:0}#main{margin-left:0}.mobile-nav-toggle{display:flex}}@media (max-width: 900px){.about-grid{grid-template-columns:1fr}.about .about-img{max-width:320px;margin:0 auto}.skills-grid,.about-details{grid-template-columns:1fr}.portfolio-grid,.contact-grid{grid-template-columns:repeat(2,1fr)}#hero h1{font-size:44px}#hero p{font-size:20px}}@media (max-width: 575px){.portfolio-grid,.contact-grid{grid-template-columns:1fr}#hero h1{font-size:36px}section{padding:60px 0}}