:root{--tsci-cyan:#00f5ff;--tsci-deep:#02050b}
#tsci-intro{position:fixed;inset:0;z-index:2147483000;overflow:hidden;background:#01040a;color:#f5feff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;opacity:1;visibility:visible;transition:opacity .65s ease,visibility .65s ease;isolation:isolate}
#tsci-intro *{box-sizing:border-box}#tsci-intro.tsci-out{opacity:0;visibility:hidden;pointer-events:none}
.tsci-portal-scene{position:absolute;inset:0;overflow:hidden;background:#01040a}
.tsci-portal-image{position:absolute;inset:-4%;background-image:url("portal-wormhole.png");background-position:50% 48%;background-size:cover;background-repeat:no-repeat;transform:scale(1.02);animation:tsci-wormhole-flight 5.05s cubic-bezier(.42,0,.7,1) forwards;will-change:transform,filter}
.tsci-portal-vignette{position:absolute;inset:0;background:radial-gradient(ellipse at 51% 48%,transparent 12%,rgba(0,4,12,.08) 38%,rgba(0,0,0,.6) 100%),linear-gradient(0deg,rgba(0,0,0,.4),transparent 32%,transparent 72%,rgba(0,0,0,.22));pointer-events:none}
.tsci-warp-flash{position:absolute;inset:-20%;opacity:0;background:radial-gradient(ellipse at 52% 48%,rgba(255,255,255,.98) 0,rgba(0,245,255,.45) 7%,rgba(0,130,255,.16) 20%,transparent 48%);mix-blend-mode:screen;animation:tsci-warp-flash 5s ease-in forwards}
.tsci-stars{position:absolute;inset:0;width:100%;height:100%;opacity:.58;pointer-events:none}.tsci-nebula,.tsci-horizon,.tsci-planet-wrap,.tsci-flight-lines{display:none}
.tsci-content{position:absolute;z-index:4;left:50%;top:50%;width:min(92vw,700px);transform:translate(-50%,-45%);display:flex;flex-direction:column;align-items:center;text-align:center;opacity:0;animation:tsci-content-in .75s 1.8s cubic-bezier(.2,.8,.2,1) forwards;text-shadow:0 2px 22px #001018}
.tsci-overline{display:flex;align-items:center;gap:12px;color:#e7fdff;font-size:clamp(9px,1.4vw,13px);letter-spacing:.24em;font-weight:750;white-space:nowrap;text-shadow:0 0 18px rgba(0,245,255,.85)}.tsci-overline span{height:1px;width:clamp(18px,4vw,42px);background:var(--tsci-cyan);box-shadow:0 0 12px var(--tsci-cyan)}
.tsci-logo{width:clamp(66px,9vw,104px);height:auto;max-height:100px;object-fit:contain;filter:drop-shadow(0 0 18px rgba(0,245,255,.9));margin:16px 0 4px}
.tsci-wordmark{font-size:clamp(29px,5vw,55px);font-weight:900;letter-spacing:.15em;text-indent:.15em;line-height:1.1;text-shadow:0 0 28px rgba(0,245,255,.45)}.tsci-wordmark b{color:var(--tsci-cyan);font-weight:900}
.tsci-tagline{margin-top:10px;font-size:clamp(9px,1.2vw,12px);letter-spacing:.48em;text-indent:.48em;color:rgba(238,253,255,.9)}
.tsci-loader{height:2px;width:min(220px,52vw);margin-top:24px;background:rgba(255,255,255,.25);overflow:hidden}.tsci-loader span{display:block;height:100%;width:0;background:#fff;box-shadow:0 0 16px var(--tsci-cyan);animation:tsci-load 4.7s linear forwards}
.tsci-enter-label{margin-top:11px;font-size:8px;letter-spacing:.26em;color:rgba(235,252,255,.82)}
.tsci-skip{position:absolute;z-index:10;right:clamp(16px,4vw,48px);bottom:clamp(16px,4vh,34px);border:1px solid rgba(0,245,255,.55);border-radius:2px;background:rgba(0,8,18,.48);color:#f3ffff;padding:12px 16px;font:600 10px/1.2 inherit;letter-spacing:.16em;cursor:pointer;backdrop-filter:blur(12px);transition:background .2s,border-color .2s}.tsci-skip:hover{background:rgba(0,245,255,.18);border-color:var(--tsci-cyan)}.tsci-skip span{margin-left:10px;color:var(--tsci-cyan)}.tsci-corner{position:absolute;z-index:3;bottom:24px;color:rgba(226,250,255,.68);font-size:8px;letter-spacing:.2em}.tsci-corner-left{left:24px}.tsci-corner-right{right:24px;bottom:24px}
@keyframes tsci-wormhole-flight{0%{transform:scale(1.02);filter:brightness(.8) saturate(1)}20%{filter:brightness(1.05) saturate(1.1)}65%{transform:scale(1.65);filter:brightness(1.15) saturate(1.3)}88%{transform:scale(2.65);filter:brightness(1.7) saturate(1.4)}100%{transform:scale(4.3);filter:brightness(2.5) saturate(1.5)}}
@keyframes tsci-warp-flash{0%,58%{opacity:0}72%{opacity:.12}87%{opacity:.8}96%{opacity:.35}100%{opacity:.9}}
@keyframes tsci-content-in{from{opacity:0;transform:translate(-50%,-38%);filter:blur(8px)}to{opacity:1;transform:translate(-50%,-45%);filter:blur(0)}}@keyframes tsci-load{to{width:100%}}
@media(max-width:600px){.tsci-portal-image{background-position:50% 48%;inset:-2%;animation-name:tsci-wormhole-flight-mobile}.tsci-content{top:48%;width:94vw}.tsci-logo{width:70px;margin-top:13px}.tsci-wordmark{letter-spacing:.09em;text-indent:.09em}.tsci-tagline{letter-spacing:.25em;text-indent:.25em}.tsci-corner-right{display:none}.tsci-skip{bottom:16px;right:16px;padding:11px 13px}.tsci-overline{letter-spacing:.13em;gap:6px}.tsci-overline span{width:12px}}
@keyframes tsci-wormhole-flight-mobile{0%{transform:scale(1.08);filter:brightness(.8)}22%{filter:brightness(1.05)}65%{transform:scale(1.85);filter:brightness(1.15)}88%{transform:scale(3);filter:brightness(1.7)}100%{transform:scale(4.7);filter:brightness(2.5)}}
@media(prefers-reduced-motion:reduce){#tsci-intro *,#tsci-intro *:before,#tsci-intro *:after{animation-duration:.01ms!important;animation-delay:0ms!important;transition-duration:.01ms!important}}