:root{--paper: #fbfaf5;--band: #f3f1e9;--ink: #14181f;--ink-soft: #39414d;--mute: #55606d;--line: #dfe4ec;--line-major: #c7d2e0;--blue: #1550c4;--blue-deep: #103d94;--coral: #c1381b;--note: #ffe08a;--wrap: 1080px;--gap: clamp(1rem, 4vw, 2rem);--radius: 10px;--box-pad: clamp(1.6rem, 3vw, 2.2rem);--sans: system-ui, -apple-system, "Segoe UI", roboto, helvetica, arial, sans-serif}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}body{margin:0;font-family:var(--sans);color:var(--ink);line-height:1.6;background:var(--paper);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility}img{max-width:100%;display:block}a{color:var(--blue)}h1,h2,h3{line-height:1.15;letter-spacing:-.01em;margin:0}.container{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gap)}.container.narrow{max-width:760px}.tnum{font-variant-numeric:tabular-nums;letter-spacing:.01em}.visually-hidden,.skip-link{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.skip-link:focus{position:fixed;top:12px;left:12px;width:auto;height:auto;clip:auto;margin:0;padding:10px 14px;background:var(--ink);color:#fff;border-radius:8px;z-index:100}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;font-weight:700;font-size:1rem;text-decoration:none;border-radius:var(--radius);border:2px solid transparent;cursor:pointer;transition:transform .08s ease,background-color .15s ease}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 3px 0 var(--blue-deep)}.btn-primary:hover{background:var(--blue-deep)}.btn-outline{background:var(--paper);color:var(--ink);border-color:var(--ink)}.btn-outline:hover{background:var(--band)}.btn-ghost{background:#ffffff14;color:#fff;border-color:#ffffffd9}.btn-ghost:hover{background:#ffffff2e}.btn-sm{min-height:40px;padding:0 16px;font-size:.92rem;box-shadow:0 2px 0 var(--blue-deep)}.btn-lg{min-height:54px;padding:0 28px;font-size:1.05rem}:where(a,button,summary,details):focus-visible{outline:3px solid var(--coral);outline-offset:2px;border-radius:6px}.site-header{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--paper) 96%,transparent);backdrop-filter:blur(6px);border-bottom:1px solid var(--line-major)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:76px}.header-left{display:inline-flex;align-items:center;gap:14px;min-width:0}.back-link{display:inline-flex;align-items:center;gap:5px;padding:5px 10px 5px 8px;border:1px solid var(--line-major);border-radius:999px;color:var(--mute);font-size:.82rem;font-weight:600;text-decoration:none;white-space:nowrap}.back-link:hover{color:var(--blue);border-color:var(--blue)}.back-arrow{font-size:.95rem;line-height:1}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none}.brand img{height:30px;width:auto}.brand-tag{color:var(--blue);border:1.5px solid var(--blue);border-radius:6px;padding:2px 7px;font-weight:700;font-size:.82rem}.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;background:transparent;border:1.5px solid var(--ink);border-radius:8px}.nav-toggle-bars,.nav-toggle-bars:before,.nav-toggle-bars:after{content:"";display:block;width:20px;height:2px;background:var(--ink);position:relative;transition:transform .2s ease,opacity .2s ease}.nav-toggle-bars:before{position:absolute;top:-6px}.nav-toggle-bars:after{position:absolute;top:6px}.nav-toggle[aria-expanded=true] .nav-toggle-bars{background:transparent}.nav-toggle[aria-expanded=true] .nav-toggle-bars:before{transform:translateY(6px) rotate(45deg)}.nav-toggle[aria-expanded=true] .nav-toggle-bars:after{transform:translateY(-6px) rotate(-45deg)}.site-nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:2px;padding:10px var(--gap) 16px;background:var(--paper);border-bottom:1px solid var(--line-major)}.site-nav.open{display:flex}.site-nav a{color:var(--ink);text-decoration:none;font-weight:600;padding:12px 6px;border-bottom:1px solid var(--line)}.site-nav a:hover{color:var(--blue)}.site-nav a.nav-cta{align-self:flex-start;margin-top:10px;color:#fff}.site-nav a.nav-cta:hover{color:#fff}.section{padding-block:clamp(3.5rem,8vw,6rem)}.band{background:var(--band);border-block:1px solid var(--line-major)}.section-title{font-size:clamp(1.7rem,5vw,2.4rem);font-weight:800;margin-bottom:.6rem}.section-title:after{content:"";display:block;width:38px;height:4px;margin-top:1rem;margin-bottom:1.6rem;background:var(--coral);border-radius:2px}.section-lede{color:var(--ink-soft);max-width:62ch;margin:0 0 3rem}.fine{color:var(--mute);font-size:.9rem;margin-top:1.8rem}.text-link{font-weight:700;text-decoration:underline;text-underline-offset:3px}.flag{color:var(--coral);font-weight:700}.restrict{color:var(--mute);font-style:italic}.hero{padding-block:clamp(2.5rem,7vw,4.5rem);background-color:var(--paper);background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:30px 30px,30px 30px;border-bottom:1px solid var(--line-major)}.hero-grid{display:grid;gap:clamp(1.8rem,5vw,3rem)}.kicker{color:var(--blue);font-weight:700;margin:0 0 1.1rem;font-size:.95rem}.hero-title{font-size:clamp(2.2rem,8vw,3.8rem);font-weight:800;margin:0 0 1.4rem}.marker{position:relative;white-space:nowrap}.marker:after{content:"";position:absolute;left:-2px;right:-2px;bottom:.06em;height:.3em;background:var(--coral);opacity:.85;z-index:-1}.hero-lede{font-size:1.12rem;color:var(--ink-soft);max-width:50ch;margin:0 0 2rem}.cta-row{display:flex;flex-wrap:wrap;gap:12px}.facts-card{background:var(--paper);border:1.5px solid var(--ink);border-radius:var(--radius);padding:var(--box-pad);box-shadow:5px 6px #14181f14;align-self:start}.facts-head{margin:0 0 1.1rem;font-weight:800;font-size:1.1rem}.facts{margin:0;display:grid;gap:0}.facts>div{display:grid;grid-template-columns:84px 1fr;gap:12px;padding:.9rem 0;border-top:1px solid var(--line)}.facts>div:first-of-type{border-top:0}.facts dt{color:var(--mute);font-weight:700;font-size:.9rem}.facts dd{margin:0;font-weight:600}.tags{list-style:none;display:flex;flex-wrap:wrap;gap:12px;padding:0;margin:0 0 2.2rem}.tags li{border:1.5px solid var(--line-major);background:var(--paper);border-radius:999px;padding:8px 15px;font-weight:600}.build-note{margin:0;color:var(--ink-soft);max-width:60ch}.steps{list-style:none;padding:0;margin:0 0 2.6rem;display:grid;gap:2.4rem 2rem;counter-reset:step}.step{position:relative;padding-left:3.4rem}.step-num{position:absolute;left:0;top:0;width:2.4rem;height:2.4rem;display:inline-flex;align-items:center;justify-content:center;border:2px solid var(--ink);border-radius:8px;font-weight:800;background:var(--paper)}.step h3{font-size:1.2rem;margin-bottom:.5rem}.step p{margin:0;color:var(--ink-soft)}.inline-cta{margin:0;font-size:1.02rem}.proof-row{display:grid;gap:1rem;margin:0 0 3rem}.proof-stat{margin:0;font-size:1.15rem;color:var(--ink-soft)}.proof-num{font-size:2.2rem;font-weight:800;color:var(--blue);margin-right:.4rem}.proj-grid{list-style:none;margin:0 0 3rem;padding:0;display:grid;gap:1.6rem}.proj{background:var(--paper);border:1.5px solid var(--line-major);border-radius:var(--radius);padding:var(--box-pad)}.proj a{font-weight:800;font-size:1.1rem;text-decoration:none}.proj a:hover{text-decoration:underline}.proj-tag{display:inline-block;margin-left:8px;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;color:var(--blue);vertical-align:middle}.proj p{margin:.6rem 0 0;color:var(--ink-soft);font-size:.96rem}.timeline{list-style:none;margin:0;padding:0;display:grid;gap:0;border:1px solid var(--line-major);border-radius:var(--radius);overflow:hidden}.timeline li{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 14px;padding:1.1rem 1.5rem;background:var(--paper);border-top:1px solid var(--line);font-weight:700}.timeline li:first-child{border-top:0}.tl-year{color:var(--blue);width:3rem}.tl-meta{color:var(--mute);font-weight:500}.days{display:grid;gap:1.6rem}.day{background:var(--paper);border:1.5px solid var(--line-major);border-radius:var(--radius);padding:var(--box-pad)}.day-head{font-size:1.05rem;margin-bottom:1rem}.day-date{color:var(--blue);font-weight:800}.agenda{list-style:none;margin:0;padding:0}.agenda li{display:flex;gap:12px;padding:11px 0;border-top:1px solid var(--line);color:var(--ink-soft)}.agenda li:first-child{border-top:0}.time{color:var(--ink);min-width:92px;font-weight:700}.prize-groups{display:grid;gap:1.8rem;margin-top:.6rem}.prize-col{background:var(--paper);border:1.5px solid var(--line-major);border-radius:var(--radius);padding:var(--box-pad)}.prize-h{font-size:1.2rem;margin-bottom:.4rem}.prize-sub{margin:0 0 1.3rem;color:var(--mute);font-size:.92rem}.prize-list{margin:0;padding:0;list-style:none;display:grid;gap:1rem}.prize-list li{color:var(--ink-soft);padding-left:1rem;position:relative}.prize-list li:before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;background:var(--blue);border-radius:2px}.prize-list strong{color:var(--ink)}.sponsors-block{margin-top:3.8rem}.sponsor-grid{list-style:none;margin:1.1rem 0 0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.sponsor-grid li{display:flex}.sponsor-grid a{flex:1;display:flex;align-items:center;justify-content:center;text-align:center;min-height:62px;padding:16px 18px;background:var(--paper);border:1.5px solid var(--line-major);border-radius:var(--radius);color:var(--ink);font-weight:700;font-size:.95rem;text-decoration:none;transition:border-color .12s ease,color .12s ease}.sponsor-grid a:hover{border-color:var(--blue);color:var(--blue)}.faq-list{display:grid;gap:14px}.faq-list details{background:var(--paper);border:1.5px solid var(--line-major);border-radius:var(--radius);padding:0 1.8rem}.faq-list summary{cursor:pointer;font-weight:700;padding:1.4rem 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";color:var(--blue);font-weight:700;font-size:1.3rem;line-height:1;transition:transform .25s ease}.faq-list details[open] summary:after{transform:rotate(45deg)}.faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}.faq-answer>div{overflow:hidden}.faq-list details.open .faq-answer{grid-template-rows:1fr}.faq-list details p{margin:0 0 1.5rem;color:var(--ink-soft)}@media (prefers-reduced-motion: reduce){.faq-answer,.faq-list summary:after{transition:none}}.register{background-color:var(--ink);color:#fff;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:30px 30px,30px 30px;text-align:center}.register-inner{display:flex;flex-direction:column;align-items:center}.register-title{font-size:clamp(1.8rem,6vw,2.7rem);font-weight:800;margin-bottom:1rem}.register-lede{color:#dbe2ee;margin:0 0 2rem;font-weight:600}.register .cta-row{justify-content:center}.register-fine{color:#b6bfcc;margin-top:1.8rem}.register-fine a{color:#fff}.site-footer{border-top:1px solid var(--line-major);background:var(--paper)}.footer-inner{display:grid;gap:2rem;padding-block:3.2rem 1.8rem}.footer-word{font-size:1rem;font-weight:800;color:var(--ink)}.footer-note{color:var(--mute);max-width:46ch;margin:.7rem 0 0;font-size:.92rem}.footer-nav{display:flex;flex-wrap:wrap;gap:.6rem 1.6rem}.footer-nav a{color:var(--ink-soft);text-decoration:none;font-weight:600;font-size:.95rem}.footer-nav a:hover{color:var(--blue)}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:1.4rem 2.4rem;border-top:1px solid var(--line);color:var(--mute)}.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}.reveal.in{opacity:1;transform:none}@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none}}@media (min-width: 640px){.steps,.proof-row,.proj-grid,.days{grid-template-columns:repeat(2,1fr)}.prize-groups,.sponsor-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width: 900px){.nav-toggle{display:none}.site-nav{display:flex;position:static;flex-direction:row;align-items:center;gap:1.4rem;padding:0;background:transparent;border:0}.site-nav a{border:0;padding:6px 0}.site-nav a.nav-cta{margin-top:0;padding:0 16px;color:#fff}.hero-grid{grid-template-columns:1.1fr .9fr;align-items:center}.days{grid-template-columns:repeat(3,1fr)}.steps{grid-template-columns:repeat(4,1fr)}.proj-grid{grid-template-columns:repeat(3,1fr)}.sponsor-grid{grid-template-columns:repeat(5,1fr)}.footer-inner{grid-template-columns:1.3fr 1fr;align-items:start}}