:root{
  color-scheme:dark;
  --bg:#030304;--surface:rgba(21,13,17,.62);--surface-solid:#110b0e;
  --ink:#f9f5f5;--muted:#c7b9be;--dim:#a28e96;
  --accent:#ff6675;--accent-hot:#ff284e;--line:rgba(255,123,139,.20);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:125px}
body{margin:0;min-width:320px;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
body::before{content:"";position:absolute;z-index:-1;inset:0 0 auto;height:1100px;pointer-events:none;background:radial-gradient(ellipse at 72% 26%,rgba(154,7,29,.23),transparent 48%),radial-gradient(ellipse at 7% 51%,rgba(80,3,14,.14),transparent 55%)}
a{color:inherit;text-decoration:none}
a:hover{color:#ffafb6}
:focus-visible{outline:2px solid #ffaeb7;outline-offset:4px}
::selection{background:rgba(255,80,106,.35)}
h1,h2,h3,p{margin-top:0}
em{font-style:normal;color:var(--accent)}
.wrap{width:min(calc(100% - 52px),var(--max));margin-inline:auto}
.site-shell{overflow:hidden}
.skip-link{position:fixed;top:-130px;left:20px;padding:12px 18px;background:var(--accent);color:#180308;z-index:100}
.skip-link:focus{top:10px}
.site-header{position:sticky;top:12px;z-index:30;min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:30px;padding:12px 23px;border:1px solid rgba(255,139,153,.16);border-radius:17px;background:rgba(14,9,11,.70);box-shadow:0 12px 42px rgba(0,0,0,.32);-webkit-backdrop-filter:blur(18px) saturate(1.18);backdrop-filter:blur(18px) saturate(1.18)}
.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;font-size:24px;letter-spacing:.085em;font-weight:800;line-height:1}
.brand-icon{width:38px;height:38px;stroke:var(--accent);stroke-width:2;fill:none}
.brand-period{color:var(--accent)}
.header-nav{display:flex;gap:35px;margin-left:auto;margin-right:auto;color:#dccdd1;font-size:13px;font-weight:650}
.header-nav a{padding:9px 0;transition:color .18s}
.header-nav [aria-current="page"]{color:var(--accent)}
.header-indicator{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;color:#ead1d8;font-size:10px;letter-spacing:.13em;font-weight:750}
.indicator-dot,.meta-dot,.signal-dot{display:inline-block;flex:none;width:7px;height:7px;border-radius:50%;background:#ff526a;box-shadow:0 0 16px 2px rgba(255,36,72,.65)}
.hero{display:grid;grid-template-columns:1.03fr 1fr;align-items:center;gap:46px;min-height:645px;padding-top:81px;padding-bottom:113px}
.overline,.section-label,.visual-index,.visual-footer,.hero-meta,.status-signal{font-size:10px;letter-spacing:.18em;font-weight:750}
.overline{display:flex;align-items:center;gap:12px;color:#ff9ca8;margin-bottom:29px}
.overline-rule{width:27px;height:1px;background:var(--accent)}
.hero h1{font-size:clamp(51px,5.4vw,86px);line-height:1.055;letter-spacing:-.063em;font-weight:710;max-width:680px;margin:0 0 25px}
.hero-lead{font-size:19px;line-height:1.6;color:#e3d9dc;max-width:550px;margin-bottom:15px}
.hero-subtext{font-size:15px;line-height:1.8;color:#bdaeb5;max-width:510px;margin-bottom:33px}
.hero-link{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;min-height:50px;min-width:210px;padding:0 20px;border-radius:8px;color:#230309;background:linear-gradient(130deg,#ff8792,#ff6177);box-shadow:0 8px 28px rgba(214,18,50,.22);font-size:13px;font-weight:800;transition:background .2s,transform .2s}
.hero-link:hover{background:#ffabb2;transform:translateY(-2px);color:#22040b}
.hero-meta{display:flex;align-items:center;gap:11px;color:#a9959c;margin-top:27px;font-size:9px;letter-spacing:.13em}
.meta-dot{width:6px;height:6px}.meta-divider{height:13px;width:1px;background:var(--line);margin:0 5px}
.visual-card{position:relative;overflow:hidden;isolation:isolate;border:1px solid rgba(255,138,150,.29);border-radius:22px;background:linear-gradient(145deg,rgba(54,23,30,.25),rgba(8,6,8,.70));box-shadow:0 32px 95px rgba(0,0,0,.6),0 0 60px rgba(255,12,51,.11),inset 0 1px 0 rgba(255,204,210,.13);-webkit-backdrop-filter:blur(20px) saturate(1.18);backdrop-filter:blur(20px) saturate(1.18)}
.visual-card::before{content:"";position:absolute;z-index:3;pointer-events:none;inset:0;border-radius:inherit;background:linear-gradient(142deg,rgba(255,214,222,.09),transparent 33%,transparent 75%,rgba(255,114,139,.045))}
.visual-index,.visual-footer{position:relative;z-index:4;padding:18px 22px;display:flex;justify-content:space-between;gap:15px;color:#d2b4bc;font-size:9px}
.visual-index{border-bottom:1px solid var(--line);background:rgba(20,11,15,.43)}
.visual-footer{border-top:1px solid var(--line);background:rgba(20,11,15,.43);align-items:center}
.visual-star{color:var(--accent);font-size:20px;line-height:1}
.abstract-stage{height:417px;position:relative;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 71% 51%,rgba(117,5,29,.29),transparent 53%),linear-gradient(180deg,#070406,#010102)}
.laser-stage::before{content:"";position:absolute;z-index:-1;inset:0;background-image:linear-gradient(rgba(255,84,116,.15) 1px,transparent 1px),linear-gradient(90deg,rgba(255,84,116,.13) 1px,transparent 1px);background-size:62px 62px;opacity:.19;mask-image:radial-gradient(ellipse at center,#000,transparent 84%)}
.laser-atmosphere{position:absolute;inset:-20%;background:radial-gradient(ellipse at 73% 52%,rgba(248,13,48,.21),transparent 47%);filter:blur(28px)}
.laser-halo{position:absolute;left:70%;top:51%;width:220px;height:220px;border-radius:50%;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(255,231,230,.50),rgba(255,31,56,.29) 12%,rgba(250,8,40,.15) 34%,transparent 69%);filter:blur(16px)}
.laser-beam{position:absolute;left:-12%;top:51%;height:26px;width:125%;transform:translateY(-50%);background:linear-gradient(90deg,transparent,rgba(245,18,51,.40) 18%,rgba(255,37,73,.82) 63%,rgba(248,29,67,.5) 88%,transparent);filter:blur(13px);box-shadow:0 0 45px rgba(255,17,53,.30);animation:laser-breathe 6s ease-in-out infinite alternate}
.laser-core{position:absolute;left:-12%;top:51%;width:125%;height:2px;transform:translateY(-50%);background:linear-gradient(90deg,transparent,#fc294a 17%,#fff4ee 70%,#ff6579 88%,transparent);box-shadow:0 0 5px #fff8f4,0 0 17px #ff284e,0 0 39px rgba(255,13,60,.83);animation:laser-breathe 6s ease-in-out infinite alternate}
.laser-flare{position:absolute;left:70%;top:51%;width:15px;height:15px;transform:translate(-50%,-50%);border-radius:50%;background:#fff7ee;box-shadow:0 0 12px 3px #ffc7c6,0 0 38px 12px rgba(255,26,64,.63),0 0 110px 37px rgba(255,0,45,.15)}
.laser-ring{position:absolute;left:70%;top:51%;border:1px solid rgba(255,122,150,.23);border-radius:50%;transform:translate(-50%,-50%) rotate(-21deg);pointer-events:none}
.laser-ring-one{width:205px;height:205px;box-shadow:0 0 24px rgba(249,22,57,.18),inset 0 0 15px rgba(255,21,60,.11)}
.laser-ring-two{width:329px;height:329px;border-color:rgba(255,105,132,.12)}
.laser-spark{position:absolute;border-radius:50%;background:#ffb2bb;box-shadow:0 0 13px #ff557b}
.laser-spark-one{left:26%;top:37%;width:3px;height:3px}
.laser-spark-two{left:84%;top:24%;width:4px;height:4px}
.laser-spark-three{left:60%;top:76%;width:2px;height:2px}
@keyframes laser-breathe{from{opacity:.67}to{opacity:1}}
.divider-band{border-block:1px solid var(--line);background:rgba(17,7,10,.6);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.divider-band-inner{display:grid;grid-template-columns:repeat(3,1fr);padding-block:26px;text-align:center;color:#c4a8b1;font-size:11px;letter-spacing:.19em;font-weight:750}
.divider-band-inner span+span{border-left:1px solid var(--line)}
.about{display:grid;grid-template-columns:1fr .85fr;gap:60px;align-items:center;padding-top:127px;padding-bottom:137px}
.section-label{color:#ff8293;margin-bottom:21px}
.about h2,.status h2{font-size:clamp(39px,4.6vw,63px);line-height:1.12;letter-spacing:-.05em;font-weight:660;margin:0}
.about-copy{padding:33px 35px;border-radius:21px;border:1px solid rgba(255,140,150,.18);background:linear-gradient(140deg,rgba(57,30,37,.30),rgba(16,10,14,.66));box-shadow:inset 0 1px rgba(255,255,255,.06),0 20px 60px rgba(0,0,0,.20);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}
.about-copy p{font-size:15px;line-height:1.9;color:#d7c7cc}.about-copy p:last-of-type{margin-bottom:0}
.reference-inline{display:inline-flex;gap:12px;align-items:center;margin-top:20px;color:#ffabb6;font-size:13px;font-weight:720;border-bottom:1px solid rgba(255,146,164,.45);padding:4px 0 7px}
.reference-inline:hover{color:#fff1f3}
.status{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:35px;padding-block:63px}
.status h2{font-size:clamp(37px,4vw,55px);margin-bottom:17px}
.status-header>p:last-child{color:#beabb1;font-size:14px;margin:0}
.status-signal{display:inline-flex;align-items:center;gap:12px;white-space:nowrap;border:1px solid rgba(255,126,143,.25);background:rgba(41,18,25,.42);border-radius:60px;padding:14px 18px;color:#f4d7dc;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.footer{display:grid;grid-template-columns:1fr 1fr;row-gap:60px;align-items:start;padding-block:58px 27px}
.footer-brand{font-size:27px;font-weight:800;letter-spacing:.09em}
.footer-brand small{display:block;margin-top:1px;color:#ad969e;letter-spacing:.16em;font-size:9px;font-weight:600}
.footer>p{justify-self:end;margin:0;color:#b09aa2;font-size:13px}
.footer-bottom{grid-column:1/-1;display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:22px;color:#aa9099;font-size:11px}
/* Educational references are independent of PHOPU implementation and stay readable on solid/glass backgrounds. */
.reference-hero{max-width:960px;padding-block:90px 72px}
.reference-hero h1{font-size:clamp(47px,5.2vw,76px);letter-spacing:-.06em;line-height:1.11;margin:0 0 28px}
.reference-intro{font-size:17px;color:#d5c4ca;max-width:800px;line-height:1.82;margin:0}
.reference-articles{max-width:960px}
.reference-articles article{padding:35px 38px 42px;margin-bottom:16px;border:1px solid rgba(255,132,148,.16);border-radius:18px;background:linear-gradient(145deg,rgba(47,25,32,.31),rgba(12,9,12,.72));-webkit-backdrop-filter:blur(13px);backdrop-filter:blur(13px)}
.reference-index{font-size:10px;letter-spacing:.17em;color:#ff8b9d;font-weight:760;margin-bottom:15px}
.reference-articles h2{font-size:clamp(27px,3vw,38px);letter-spacing:-.035em;line-height:1.25;margin:0 0 17px}
.reference-articles article>p:not(.reference-index):not(.reference-sources){max-width:790px;font-size:15px;line-height:1.85;color:#e0d1d5;margin-bottom:21px}
.reference-sources{font-size:12px;line-height:1.8;color:#bca8ae;margin:0}
.reference-sources a{color:#ffb1bb;text-decoration:underline;text-underline-offset:4px}
.reference-close{max-width:960px;padding-block:75px 86px}
.reference-close>p:not(.section-label){max-width:810px;line-height:1.8;font-size:13px;color:#c9b6bd;margin-bottom:28px}
@media(max-width:1040px){
 .hero{grid-template-columns:1fr;gap:32px;padding-top:55px}
 .hero-copy{max-width:800px}
 .visual-card{width:100%;max-width:780px}
 .about{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:720px){
 html{scroll-padding-top:150px}
 .wrap{width:calc(100% - 28px)}
 .site-header{top:8px;min-height:77px;flex-wrap:wrap;gap:7px 12px;border-radius:15px;padding:11px 15px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
 .brand{font-size:20px}.brand-icon{width:30px;height:30px}
 .header-indicator{font-size:9px;letter-spacing:.08em}
 .header-nav{order:3;width:100%;gap:24px;margin:0;font-size:12px;justify-content:flex-start}
 .header-nav a{padding:9px 0;min-height:40px;display:inline-flex;align-items:center}
 .hero{min-height:auto;gap:29px;padding-block:51px 68px}
 .hero h1{font-size:clamp(46px,11.5vw,69px);letter-spacing:-.058em}
 .overline{font-size:9px;letter-spacing:.13em}
 .hero-lead{font-size:17px}.hero-subtext{font-size:14px}
 .hero-link{min-height:48px;padding-inline:17px}
 .hero-meta{gap:8px;flex-wrap:wrap;font-size:8px}
 .visual-card{border-radius:17px;-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px)}
 .visual-index,.visual-footer{padding:13px 14px;font-size:8px;letter-spacing:.10em}
 .abstract-stage{height:clamp(255px,68vw,365px)}
 .laser-ring-two{width:260px;height:260px}.laser-ring-one{width:155px;height:155px}
 .laser-halo{width:170px;height:170px;filter:blur(12px)}
 .divider-band-inner{padding-block:22px;font-size:9px;letter-spacing:.12em}
 .about{grid-template-columns:1fr;gap:25px;padding-block:81px}
 .about h2,.status h2{font-size:clamp(38px,10vw,51px)}
 .about-copy{padding:25px 23px;border-radius:17px;-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px)}
 .about-copy p{font-size:14px;line-height:1.8}
 .status{flex-direction:column;align-items:flex-start;gap:26px;padding-block:45px}
 .status-header>p:last-child{font-size:13px}.status-signal{font-size:9px}
 .footer{grid-template-columns:1fr;row-gap:21px;padding-top:45px}
 .footer>p{justify-self:start}.footer-bottom{margin-top:12px}
 .reference-hero{padding-block:59px 43px}
 .reference-hero h1{font-size:clamp(44px,11vw,64px)}
 .reference-intro{font-size:15px}
 .reference-articles article{padding:26px 21px 30px;border-radius:15px}
 .reference-articles h2{font-size:27px}
 .reference-articles article>p:not(.reference-index):not(.reference-sources){font-size:14px}
 .reference-close{padding-block:55px 70px}
}
@media(max-width:370px){
 .header-indicator{font-size:8px}.header-nav{gap:17px}
 .abstract-stage{height:265px}.laser-ring-two{width:222px;height:222px}
 .hero h1{font-size:43px}
 .visual-index,.visual-footer{font-size:7px}
}
@media(prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}
 *,*::before,*::after{animation:none!important;transition:none!important}
}
@media not all and (min-resolution:0.001dpcm){
 .visual-card,.site-header,.about-copy,.reference-articles article{background-color:#150d11}
}