:root { color-scheme: dark; --background: #050506; --text: #f0f0f0; --muted: #bbc2cf; --warm: #e2aa78; --border: #26354c; }
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(ellipse at 85% 10%, #06182a, transparent 55%), var(--background); color: var(--text); font: 1.05rem/1.75 system-ui, sans-serif; }
a { color: var(--warm); text-underline-offset: .25em; }
a:hover { color: #fff; }
a:focus-visible { outline: 3px solid #8caeff; outline-offset: 6px; border-radius: 2px; }
.container { width: min(1120px, 90%); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding-block: 2rem; border-bottom: 1px solid var(--border); }
.wordmark { color: var(--text); font-size: 2rem; letter-spacing: .08em; text-decoration: none; line-height: 1.2; }
.wordmark span { display: block; font-size: .65rem; letter-spacing: .14em; color: var(--muted); margin-top: .5rem; }
nav { display: flex; flex-wrap: wrap; gap: 1.5rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a[aria-current="page"] { color: var(--warm); text-decoration: underline; }
.hero { padding-block: clamp(4rem, 10vw, 8rem); }
.eyebrow { text-transform: uppercase; letter-spacing: .16em; color: var(--warm); font-size: .8rem; font-weight: 600; }
h1, h2, h3 { font-weight: 400; line-height: 1.15; text-wrap: balance; }
h1 { font-size: clamp(2.6rem, 5.5vw, 4.6rem); letter-spacing: -.035em; margin-block: 1.5rem; }
.hero h1 { font-size: clamp(4.8rem, 12vw, 9rem); line-height: 1; }
h1 span { color: var(--warm); }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h3 { font-size: 1.5rem; }
p { max-width: 70ch; }
.lead { font-size: clamp(1.25rem, 2.5vw, 1.65rem); line-height: 1.5; }
.intro, .grid p, .callout p, .prose p { color: var(--muted); }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.8rem; margin-top: 2.5rem; }
.button { display: inline-block; padding: .8rem 1.4rem; border: 1px solid var(--warm); border-radius: 4px; color: #050506; background: var(--warm); text-decoration: none; font-weight: 600; }
.button:hover { color: #050506; background: #f2c49b; }
.text-link { font-weight: 600; }
.section { padding-block: 2rem 4rem; border-top: 1px solid var(--border); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; margin-top: 3rem; }
.number { color: #98b4f1; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; }
.callout { padding: clamp(1.5rem, 5vw, 3.5rem); border: 1px solid var(--border); border-radius: 6px; background: #06182a80; margin-block: 2rem 4rem; }
.prose { max-width: 800px; padding-block: 4rem; }
.prose h2 { margin-top: 2.7rem; }
.prose .lead { color: var(--text); }
.prose > .button { margin-top: 2rem; }
.steps { padding-left: 1.5rem; }
.steps li { padding-left: 1rem; }
.steps li::marker { color: var(--warm); }
.site-footer { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; border-top: 1px solid var(--border); padding-block: 2rem; color: var(--muted); font-size: .85rem; }
.skip-link { position: absolute; top: -100px; left: 1rem; background: var(--background); padding: .7rem; z-index: 1; }
.skip-link:focus { top: 1rem; }
.preregistration-form { display: grid; gap: 1rem; }
.preregistration-form label { font-weight: 600; margin-top: 1rem; }
.preregistration-form input, .preregistration-form textarea { width: 100%; font: inherit; padding: .8rem; border: 1px solid #71809a; border-radius: 4px; background: #06182a; color: var(--text); }
.preregistration-form input:focus, .preregistration-form textarea:focus { outline: 2px solid #8caeff; outline-offset: 2px; }
.preregistration-form button { font: inherit; cursor: pointer; justify-self: start; }
.preregistration-form p { margin: 0; }
.validation { color: #ffc4b8; }
.validation-summary-valid { display: none; }
.purpose-count { color: var(--muted); font-size: .85rem; }
@media (max-width: 700px) { .site-header { align-items: flex-start; flex-direction: column; gap: 1.5rem; } nav { gap: 1rem; } .grid { grid-template-columns: 1fr; gap: 1rem; } .prose { padding-block: 2rem; } }