:root{--gdg-blue: #1a73e8;--gdg-red: #d93025;--gdg-yellow: #fbbc05;--gdg-green: #34a853;--bg: #071029;--card: #ffffff;--muted: #9aa4b2}*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;background:linear-gradient(180deg,#071029,#071b2b);color:var(--card);scroll-behavior:smooth}a{color:inherit;text-decoration:none}.container{max-width:1100px;margin:0 auto;padding:2rem}.navbar{position:fixed;top:0;z-index:60;width:100%;transition:background .4s,box-shadow .4s}.navbar{background:transparent}.navbar.scrolled{background:#fffffff2;box-shadow:0 2px 10px #0000001f;backdrop-filter:blur(8px)}.nav-container{display:flex;align-items:center;justify-content:space-between;padding:.6rem 1rem}.logo{display:flex;align-items:center;gap:.6rem}.logo-img{width:36px;height:36px;border-radius:6px;object-fit:cover}.logo-text{font-weight:700;background:linear-gradient(90deg,#4285f4,#ea4335,#fbbc05,#34a853);background-size:300% 300%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:gradientShift 6s ease infinite}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.nav-links{display:flex;gap:1rem;align-items:center;list-style:none;margin:0;padding:0}.nav-links a{position:relative;padding:.5rem .6rem;border-radius:8px;color:#ffffffe6;font-size:.95rem}.nav-links a:after{content:"";position:absolute;bottom:6px;left:10%;width:0%;height:3px;background:linear-gradient(90deg,var(--gdg-blue),var(--gdg-red),var(--gdg-yellow),var(--gdg-green));background-size:300% 300%;border-radius:2px;transition:width .35s ease;animation:gradientShift 6s ease infinite}.nav-links a:hover:after{width:80%}.hamburger-btn{display:none;background:none;border:0;padding:.4rem;border-radius:8px;cursor:pointer;font-size:1.4rem;color:#fffffff2}@media(max-width:900px){.nav-links{display:none}.hamburger-btn{display:inline-block}}.hero{padding:6rem 0 4rem;position:relative;overflow:hidden}.hero-bg-layer{position:absolute;inset:0;background-image:linear-gradient(120deg,#1a73e814,#34a8530f);pointer-events:none;transform:translateY(calc(var(--parallax, 0px) * -1));transition:transform .2s linear}.hero-inner{display:flex;gap:2rem;align-items:center;position:relative;z-index:2}.hero-left{flex:1;color:#fff}.hero-right{flex:0 0 320px}.hero h1{font-size:2.4rem;color:var(--card);margin:0 0 .6rem}.lead{color:#fffffff2}.meta{color:var(--muted);margin-top:.6rem}.cta-row{margin-top:1rem;display:flex;gap:.8rem}.btn{display:inline-block;padding:.6rem .9rem;border-radius:10px;background:transparent;border:1px solid rgba(255,255,255,.06);color:var(--card);text-decoration:none}.btn.primary{background:linear-gradient(90deg,var(--gdg-blue),var(--gdg-green));box-shadow:0 6px 18px #1a73e824;border:0;color:#fff}.btn.ghost{background:linear-gradient(90deg,#ffffff08,#ffffff03);color:#fff}.card{background:linear-gradient(180deg,#ffffff08,#ffffff05);padding:1rem;border-radius:12px;border:1px solid rgba(255,255,255,.04);color:#fff;box-shadow:0 6px 20px #02061799;opacity:0;transform:translateY(24px);transition:opacity .9s cubic-bezier(.2,.9,.2,1),transform .9s cubic-bezier(.2,.9,.2,1)}.card.in-view{opacity:1;transform:none}.card-grid,.speakers-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.sponsor-row{display:flex;gap:1rem;flex-wrap:wrap}.sponsor-card{min-width:150px;display:flex;align-items:center;justify-content:center;padding:1rem}.timeline{display:flex;flex-direction:column;gap:1rem}.timeline-item{display:flex;gap:1rem;align-items:center;opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s ease}.timeline-item.in-view{opacity:1;transform:none}.timeline-item time{font-weight:700;color:var(--gdg-blue);width:72px}.avatar{width:78px;height:78px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:linear-gradient(90deg,var(--gdg-yellow),var(--gdg-red));color:#111;font-weight:700;opacity:1;transform:translateY(12px);transition:opacity .7s ease,transform .7s ease}.avatar>img{width:68px;height:68px;border-radius:50%}.map-placeholder{height:120px;border-radius:8px;background:linear-gradient(90deg,#ffffff05,#ffffff03);display:flex;align-items:center;justify-content:center;color:var(--muted)}.faq-list details{padding:.8rem;opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}.faq-list details.in-view{opacity:1;transform:none}.section{padding:3rem 0}.grid-2{display:grid;grid-template-columns:1fr 360px;gap:1rem;align-items:start}.muted{color:var(--muted)}.animate-block{opacity:0;transform:translateY(20px);transition:opacity .85s cubic-bezier(.2,.9,.2,1),transform .85s cubic-bezier(.2,.9,.2,1)}.animate-block.in-view{opacity:1;transform:none}.card-grid .card,.speakers-grid .speaker,.sponsor-row .sponsor-card{transition-delay:0ms}.card-grid .card:nth-child(1){transition-delay:80ms}.card-grid .card:nth-child(2){transition-delay:.16s}.card-grid .card:nth-child(3){transition-delay:.24s}.speakers-grid .speaker:nth-child(1){transition-delay:80ms}.speakers-grid .speaker:nth-child(2){transition-delay:.16s}.speakers-grid .speaker:nth-child(3){transition-delay:.24s}@media(max-width:900px){.nav-links{display:none}.hamburger-btn{display:inline-block}.hero-inner{flex-direction:column-reverse}.grid-2{grid-template-columns:1fr}.card-grid,.speakers-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.card-grid,.speakers-grid{grid-template-columns:1fr}.logo-text{font-size:1rem}.hero h1{font-size:1.6rem}.container{padding:1rem}}*{font-family:Plus Jakarta Sans,sans-serif}.font-display{font-family:Sora,sans-serif}