.landing-intro{--intro-shimmer:linear-gradient(100deg,rgba(148,188,200,0.55),rgba(94,234,212,0.72) 18%,rgba(196,158,188,0.78) 34%,rgba(255,255,255,0.92) 50%,rgba(200,168,230,0.78) 66%,rgba(94,234,212,0.68) 82%,rgba(148,188,200,0.55));position:fixed;inset:0;z-index:9999;display:grid;place-items:center;padding:24px;overflow:hidden;background:#1a0a2e;animation:landing-intro-in .28s ease-out both;transition:opacity .48s cubic-bezier(.22,1,.36,1),visibility .48s cubic-bezier(.22,1,.36,1)}.landing-intro--hidden{opacity:0;visibility:hidden;pointer-events:none;animation:none}.landing-intro__ambient{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 58% 42% at 22% 18%,rgba(244,114,182,.14),transparent 58%),radial-gradient(ellipse 52% 38% at 78% 72%,rgba(168,85,247,.12),transparent 55%),radial-gradient(ellipse 40% 30% at 50% 50%,rgba(94,234,212,.06),transparent 62%)}.landing-intro__stage{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:22px}.landing-intro__mark .arecibo-logo-mark__stroke{stroke-dasharray:100;stroke-dashoffset:100;opacity:.45;animation:arecibo-stroke-draw-once 3.8s ease-out 1 forwards}.landing-intro__mark .arecibo-logo-mark{filter:drop-shadow(0 8px 24px rgba(8,4,15,.45)) drop-shadow(0 0 20px rgba(244,114,182,.15))}.landing-intro__name{margin:0;display:flex;justify-content:center;font-family:var(--font-display),"Syne",system-ui,sans-serif;font-size:clamp(1.75rem,5.2vw,2.5rem);font-weight:500;letter-spacing:.04em;line-height:1.1;opacity:0;animation:landing-name-in .9s ease-out .85s forwards}.landing-intro__letter{position:relative;display:inline-block}.landing-intro__letter-depth{position:absolute;inset:0;z-index:0;transform:translate3d(.04em,.08em,0);color:rgba(0,0,0,.32);filter:blur(.35px);pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.landing-intro__letter-face{position:relative;z-index:1;display:block;background-image:var(--intro-shimmer);background-size:340% 100%;background-position:140%;-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;animation:landing-letter-shimmer 3.2s cubic-bezier(.42,0,.2,1) infinite}@keyframes landing-intro-in{0%{opacity:0}to{opacity:1}}@keyframes landing-name-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes landing-letter-shimmer{0%{background-position:140%}to{background-position:-140%}}@media (prefers-reduced-motion:reduce){.landing-intro,.landing-intro__mark .arecibo-logo-mark__stroke{animation:none!important}.landing-intro__mark .arecibo-logo-mark__stroke{stroke-dashoffset:0;opacity:.95}.landing-intro__name{opacity:1;animation:none;background:linear-gradient(135deg,rgba(94,234,212,.9),rgba(244,114,182,.85) 50%,rgba(192,132,252,.9));-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}.landing-intro__letter-depth{display:none}.landing-intro__letter-face{background:inherit;animation:none}}