/* ORBION / Nebula frontier microsite
   Deep black editorial layout with a WebGL particle cloud as the primary visual. */

:root{
  --bg:#000000;         /* true deep black */
  --bg-soft:#07090C;    /* barely-there panel */
  --card:#0C0F14;       /* card surface */
  --ink:#F5F7FA;        /* near-white text */
  --ink-2:#C4CBD6;      /* secondary text */
  --muted:#7C8494;      /* labels, captions */
  --green:#8FF5BE;      /* fluorescence accent (used small, no glow) */
  --purple:#C6B4FF;     /* secondary accent */
  --line:#1A1E26;       /* hairlines */
  --line-2:#2A2F3A;
  --max:1280px;
  --ease:cubic-bezier(0.22,0.61,0.36,1);
  --sans:"General Sans",-apple-system,BlinkMacSystemFont,"Helvetica Neue","Segoe UI",Arial,sans-serif;
  --display:"Cabinet Grotesk","General Sans",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--sans);background:var(--bg);color:var(--ink);
  line-height:1.5;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;
  font-feature-settings:"ss01","cv01";
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--green);color:#04120A}

/* ---------- Particle point-cloud backdrop ---------- */
#scene-canvas{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;pointer-events:none;opacity:0;transition:opacity 1.6s var(--ease)}
#scene-canvas.ready{opacity:0.86}
#bg-scrim{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(0,0,0,0.32) 0%,rgba(0,0,0,0.16) 38%,rgba(0,0,0,0.54) 100%),
    linear-gradient(90deg,rgba(0,0,0,0.98) 0%,rgba(0,0,0,0.80) 34%,rgba(0,0,0,0.26) 64%,rgba(0,0,0,0.07) 100%)}
body.no-webgl #scene-canvas,body.no-webgl #bg-scrim{display:none}
main{position:relative;z-index:2}

/* ---------- Loader (Nebula star) ---------- */
#loader{position:fixed;inset:0;z-index:1000;background:
  radial-gradient(circle at 50% 48%,rgba(143,245,190,0.055),transparent 28%),
  radial-gradient(circle at 50% 48%,rgba(174,232,255,0.035),transparent 42%),
  var(--bg);
  display:flex;align-items:center;justify-content:center;overflow:hidden;
  transition:opacity 0.72s var(--ease),visibility 0.72s var(--ease)}
#loader::before{content:"";position:absolute;inset:0;opacity:0.34;background:
  radial-gradient(circle at 42% 46%,rgba(245,247,250,0.36) 0 1px,transparent 1.7px),
  radial-gradient(circle at 56% 52%,rgba(143,245,190,0.24) 0 1px,transparent 1.8px),
  radial-gradient(circle at 62% 42%,rgba(198,180,255,0.18) 0 1px,transparent 1.6px);
  background-size:180px 180px,240px 240px,310px 310px;filter:blur(0.2px)}
#loader.done{opacity:0;visibility:hidden}
.loader-starfield{position:relative;width:120px;height:120px;display:grid;place-items:center;isolation:isolate}
.loader-halo{position:absolute;inset:28px;border-radius:50%;border:1px solid rgba(143,245,190,0.14);
  background:radial-gradient(circle,rgba(143,245,190,0.14),rgba(174,232,255,0.045) 34%,transparent 68%);
  filter:blur(1px);opacity:0.38;transform:scale(0.84);animation:loader-halo-pulse 2.2s ease-in-out infinite}
.loader-star{position:relative;width:7px;height:7px;border-radius:50%;background:#DFFFEA;z-index:2;
  box-shadow:0 0 8px rgba(143,245,190,0.42),0 0 24px rgba(143,245,190,0.18);
  animation:loader-star-pulse 2.2s ease-in-out infinite}
.loader-star::before,.loader-star::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:linear-gradient(90deg,transparent,rgba(223,255,234,0.58),transparent);opacity:0.62}
.loader-star::before{width:74px;height:1px}
.loader-star::after{width:1px;height:74px;background:linear-gradient(180deg,transparent,rgba(223,255,234,0.58),transparent)}
.loader-spark{position:absolute;width:3px;height:3px;border-radius:50%;background:rgba(174,232,255,0.72);
  box-shadow:0 0 10px rgba(174,232,255,0.34);opacity:0.42;animation:loader-spark-drift 3.1s ease-in-out infinite}
.loader-spark.s1{left:24px;top:42px;animation-delay:-0.2s}
.loader-spark.s2{right:26px;top:36px;background:rgba(198,180,255,0.68);box-shadow:0 0 10px rgba(198,180,255,0.30);animation-delay:-1s}
.loader-spark.s3{left:38px;bottom:26px;background:rgba(143,245,190,0.70);box-shadow:0 0 11px rgba(143,245,190,0.32);animation-delay:-1.7s}
.loader-spark.s4{right:34px;bottom:32px;animation-delay:-2.4s}
#loader.finishing .loader-halo{animation:loader-halo-finish 0.62s var(--ease) forwards}
#loader.finishing .loader-star{animation:loader-star-finish 0.62s var(--ease) forwards}
#loader.finishing .loader-spark{animation:loader-spark-finish 0.62s var(--ease) forwards}
@keyframes loader-star-pulse{
  0%,100%{transform:scale(0.74);opacity:0.48;box-shadow:0 0 6px rgba(143,245,190,0.24),0 0 16px rgba(143,245,190,0.10)}
  46%{transform:scale(1.22);opacity:1;box-shadow:0 0 14px rgba(223,255,234,0.70),0 0 44px rgba(143,245,190,0.34),0 0 84px rgba(174,232,255,0.18)}
  70%{transform:scale(0.92);opacity:0.68}
}
@keyframes loader-halo-pulse{
  0%,100%{transform:scale(0.78);opacity:0.18}
  48%{transform:scale(1.16);opacity:0.58}
}
@keyframes loader-spark-drift{
  0%,100%{transform:translate3d(0,0,0) scale(0.82);opacity:0.22}
  50%{transform:translate3d(3px,-5px,0) scale(1.2);opacity:0.72}
}
@keyframes loader-star-finish{
  0%{transform:scale(1);opacity:0.9}
  46%{transform:scale(1.7);opacity:1;box-shadow:0 0 20px rgba(223,255,234,0.86),0 0 70px rgba(143,245,190,0.42),0 0 132px rgba(174,232,255,0.22)}
  100%{transform:scale(0.4);opacity:0}
}
@keyframes loader-halo-finish{
  0%{transform:scale(1);opacity:0.45}
  60%{transform:scale(1.9);opacity:0.62}
  100%{transform:scale(2.5);opacity:0}
}
@keyframes loader-spark-finish{
  to{transform:translate3d(0,-10px,0) scale(0.2);opacity:0}
}

/* ---------- Layout primitives ---------- */
.section{position:relative;padding:clamp(96px,15vh,190px) clamp(22px,5vw,80px)}
.section.tight{padding-top:clamp(72px,10vh,120px);padding-bottom:clamp(72px,10vh,120px)}
.section.air{padding-top:clamp(120px,18vh,230px);padding-bottom:clamp(120px,18vh,230px)}
.wrap{max-width:var(--max);margin:0 auto;width:100%}
.section.dark{background:linear-gradient(180deg,rgba(0,0,0,0.42),rgba(0,0,0,0.80) 18%,rgba(0,0,0,0.82) 82%,rgba(0,0,0,0.44))}
.section.soft{background:linear-gradient(180deg,rgba(3,5,8,0.52),rgba(3,5,8,0.86) 18%,rgba(3,5,8,0.88) 82%,rgba(3,5,8,0.54))}
.section-line{border-top:0}

/* ---------- Eyebrow / labels ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:11.5px;color:var(--green);margin-bottom:26px}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green);flex:none}
.eyebrow.plain::before{display:none}
.eyebrow.muted{color:var(--muted)}
.eyebrow.muted::before{background:var(--muted)}

/* ---------- Type scale (grotesque, tight) ---------- */
.h-xl{font-weight:600;letter-spacing:0;line-height:1.0;font-size:clamp(44px,6.8vw,96px);text-wrap:balance}
.h-lg{font-weight:600;letter-spacing:0;line-height:1.04;font-size:clamp(32px,4.6vw,62px);text-wrap:balance}
.h-md{font-weight:600;letter-spacing:0;line-height:1.1;font-size:clamp(26px,3vw,40px);text-wrap:balance}
.lede{font-size:clamp(16px,1.35vw,20px);line-height:1.55;color:var(--ink-2);font-weight:400;max-width:58ch;letter-spacing:0}
.lede.wide{max-width:66ch}
.small{font-size:14px;line-height:1.6;color:var(--muted);letter-spacing:0}
.small a{color:var(--ink-2);border-bottom:1px solid var(--line-2);transition:color 0.3s,border-color 0.3s}
.small a:hover{color:var(--green);border-color:var(--green)}

/* Type families: chunky display for headlines, mono for the small labels */
.h-xl,.h-lg,.h-md,.sum-title,.value-title,.card-title,.wordmark{font-family:var(--display)}
.h-xl{letter-spacing:0;line-height:1.0}
.h-lg{letter-spacing:0}
.h-md{letter-spacing:0}
.eyebrow,.card-tag,.row-idx,.row-flag,.value-num,.split-statement span,.split-card span,.equation-term span{
  font-family:var(--mono);font-weight:700;letter-spacing:0.1em;text-transform:uppercase}
.family-strip{margin-top:clamp(28px,3vw,40px);font-size:14.5px;color:var(--ink-2);line-height:1.7;max-width:78ch}
.family-strip b{color:var(--ink);font-weight:600}
/* ---------- Buttons (alethia pill) ---------- */
.pill{display:inline-flex;align-items:center;gap:12px;font-family:var(--sans);font-size:13px;font-weight:600;letter-spacing:0.02em;min-height:44px;
  padding:13px 20px 13px 22px;border-radius:100px;cursor:pointer;border:1px solid var(--line-2);
  color:var(--ink);background:transparent;transition:background 0.35s var(--ease),border-color 0.35s var(--ease),color 0.35s var(--ease)}
.pill .arw{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;
  background:var(--green);color:#04120A;font-size:12px;transition:transform 0.35s var(--ease)}
.pill:hover{background:var(--ink);border-color:var(--ink);color:#04120A}
.pill:hover .arw{transform:translateX(2px)}
.pill.solid{background:var(--green);border-color:var(--green);color:#04120A}
.pill.solid .arw{background:#04120A;color:var(--green)}
.pill.solid:hover{background:#a6ffce;border-color:#a6ffce}
.pill.ghost{border-color:rgba(245,247,250,0.26);background:rgba(245,247,250,0.035);color:#F5F7FA;
  box-shadow:inset 0 0 0 1px rgba(143,245,190,0.04),0 0 18px rgba(143,245,190,0.045)}
.pill.ghost .arw{background:rgba(143,245,190,0.13);border:1px solid rgba(143,245,190,0.44);color:#B8FFD8}
.pill.ghost:hover{background:rgba(143,245,190,0.90);border-color:var(--green);color:#04120A;box-shadow:0 0 24px rgba(143,245,190,0.18)}
.pill.ghost:hover .arw{background:#04120A;border-color:#04120A;color:var(--green)}

.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line-2);padding-bottom:2px;transition:color 0.3s,border-color 0.3s}
.text-link::after{content:"\2192";transition:transform 0.3s var(--ease)}
.text-link:hover{color:var(--green);border-color:var(--green)}
.text-link:hover::after{transform:translateX(4px)}

/* ---------- Nav ---------- */
#nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:22px clamp(22px,5vw,80px);transition:background 0.4s var(--ease),padding 0.4s var(--ease),border-color 0.4s var(--ease);
  border-bottom:1px solid transparent}
#nav.scrolled{background:rgba(0,0,0,0.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);padding-top:15px;padding-bottom:15px}
.brand{display:flex;align-items:center;gap:16px}
.brand-logo{height:24px;width:auto;display:block}
.brand-div{width:1px;height:30px;background:linear-gradient(180deg,transparent,rgba(201,245,159,0.30) 18%,rgba(245,247,250,0.44) 50%,rgba(201,245,159,0.30) 82%,transparent)}
.brand-desc{font-family:var(--display);font-size:24px;letter-spacing:0;text-transform:lowercase;color:#D7FFAA;
  font-weight:800;line-height:1;white-space:nowrap;transform:translateY(-1px);text-shadow:0 0 10px rgba(201,245,159,0.22),0 0 24px rgba(143,245,190,0.12)}
.nav-links{display:flex;align-items:center;gap:clamp(12px,2vw,20px)}
#nav .pill{padding:10px 16px 10px 18px}
#nav .pill .arw{width:19px;height:19px}

/* ---------- Hero ---------- */
.hero{min-height:100vh;display:flex;align-items:center;padding-top:clamp(104px,14vh,150px);padding-bottom:clamp(60px,8vh,96px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,0.88fr) minmax(420px,0.72fr);align-items:center;gap:clamp(34px,6vw,92px);width:100%;max-width:var(--max)}
.hero-copy{display:flex;flex-direction:column;align-items:flex-start}
.hero h1{max-width:12.5ch;overflow-wrap:normal;font-size:clamp(42px,5.2vw,72px);line-height:1.02}
.hero-subcopy{margin-top:clamp(16px,1.7vw,24px);max-width:34ch;font-size:clamp(17px,1.35vw,21px);line-height:1.45;color:#B8FFD8;font-weight:500}
.hero .lede{max-width:62ch;margin-top:0;color:rgba(245,247,250,0.78);font-size:clamp(16.5px,1.35vw,20px)}
.hero-context{display:block;margin-bottom:2px;color:#B8FFD8;font-weight:500}
.hero-action{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:clamp(12px,1.5vw,18px);
  margin-top:clamp(22px,3vw,40px);max-width:470px}
.hero-action::before{content:"";position:absolute;left:0;top:-16px;width:clamp(46px,4.8vw,74px);height:1px;
  background:linear-gradient(90deg,rgba(143,245,190,0.58),transparent);opacity:0.62}
.hero-action p{font-size:clamp(15.5px,1.22vw,19px);line-height:1.45;color:rgba(245,247,250,0.56);max-width:38ch}
.hero-action p b{color:#F5F7FA;font-weight:560}
.hero-action-soft{margin-left:0.24em;color:rgba(245,247,250,0.56)}
.hero-action .pill{min-height:clamp(46px,3.6vw,54px);padding:12px 16px 12px 20px;font-size:clamp(14px,1vw,16px);
  box-shadow:0 0 20px rgba(143,245,190,0.10),inset 0 1px 0 rgba(245,247,250,0.14)}
.hero-action .pill .arw{width:24px;height:24px;font-size:14px}
.service-flow{display:flex;align-items:center;flex-wrap:wrap;gap:9px;margin-top:clamp(18px,2.6vw,34px);
  max-width:900px;color:rgba(245,247,250,0.70);font-family:var(--mono);font-size:clamp(10.5px,0.92vw,12px);
  font-weight:700;letter-spacing:0.08em;text-transform:uppercase}
.service-flow span,.service-flow b{display:inline-flex;align-items:center;min-height:28px;white-space:nowrap}
.service-flow b{color:#B8FFD8;font-weight:700}
.service-flow i{display:block;width:clamp(18px,2.5vw,36px);height:1px;background:linear-gradient(90deg,rgba(143,245,190,0.22),rgba(245,247,250,0.28),rgba(143,245,190,0.22));opacity:0.82}
.hero-showcase{position:relative;min-height:clamp(360px,38vw,520px);border:1px solid rgba(245,247,250,0.13);border-radius:8px;
  background:linear-gradient(180deg,rgba(6,10,14,0.82),rgba(2,4,7,0.90));overflow:hidden;isolation:isolate;
  box-shadow:inset 0 0 0 1px rgba(143,245,190,0.03),0 24px 80px rgba(0,0,0,0.38)}
.hero-svg-showcase{display:flex;align-items:center;justify-content:center;min-height:auto;border:0;background:transparent;box-shadow:none;overflow:visible}
.hero-svg-showcase::before,.hero-svg-showcase::after{display:none}
.hero-svg-showcase img{display:block;width:min(100%,720px);height:auto;filter:drop-shadow(0 34px 90px rgba(0,0,0,0.48))}
.hero-showcase::before{content:"";position:absolute;inset:-18%;z-index:-1;background:
  radial-gradient(circle at 54% 48%,rgba(143,245,190,0.16),transparent 22%),
  radial-gradient(circle at 76% 26%,rgba(174,232,255,0.06),transparent 28%),
  conic-gradient(from 18deg at 52% 48%,transparent 0 26%,rgba(143,245,190,0.07) 36%,rgba(198,180,255,0.04) 46%,transparent 60% 100%);
  filter:blur(18px);opacity:0.58;animation:showcase-field 13s ease-in-out infinite alternate}
.hero-showcase::after{content:"";position:absolute;inset:0;z-index:-1;background:
  radial-gradient(circle,rgba(245,247,250,0.34) 0 0.65px,transparent 1.1px) 0 0/44px 44px,
  radial-gradient(circle,rgba(143,245,190,0.16) 0 0.7px,transparent 1.2px) 17px 19px/72px 72px;
  opacity:0.18;mask-image:radial-gradient(ellipse at 58% 50%,#000 0 50%,transparent 78%);-webkit-mask-image:radial-gradient(ellipse at 58% 50%,#000 0 50%,transparent 78%)}
.showcase-top,.showcase-foot{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;
  font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:0.07em;text-transform:uppercase;color:rgba(245,247,250,0.58)}
.showcase-top{border-bottom:1px solid rgba(245,247,250,0.10)}
.showcase-top b{color:#B8FFD8;font-weight:700}
.showcase-top em{font-style:normal;color:rgba(245,247,250,0.46)}
.showcase-foot{position:absolute;left:0;right:0;bottom:0;border-top:1px solid rgba(245,247,250,0.09);color:rgba(245,247,250,0.48)}
.showcase-body{position:absolute;inset:58px 0 52px;display:grid;grid-template-columns:0.62fr 0.88fr 1.34fr;align-items:center;gap:clamp(12px,2vw,24px);padding:clamp(20px,2.8vw,38px)}
.candidate-stack{display:grid;gap:11px;justify-items:start}
.candidate-stack span{display:flex;align-items:center;justify-content:center;width:clamp(38px,4vw,50px);height:clamp(38px,4vw,50px);border:1px solid rgba(245,247,250,0.13);border-radius:50%;
  background:rgba(245,247,250,0.035);font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:0.04em;color:rgba(245,247,250,0.68)}
.candidate-stack span:nth-child(2){transform:translateX(18px);border-color:rgba(143,245,190,0.28);color:#B8FFD8;background:rgba(143,245,190,0.06)}
.candidate-stack span:nth-child(3){transform:translateX(4px)}
.candidate-stack span:nth-child(4){transform:translateX(22px);opacity:0.52}
.flow-arrow{position:absolute;top:50%;height:1px;background:linear-gradient(90deg,rgba(143,245,190,0.12),rgba(143,245,190,0.50));transform:translateY(-50%);opacity:0.80}
.flow-arrow::after{content:"";position:absolute;right:-1px;top:50%;width:6px;height:6px;border-top:1px solid rgba(143,245,190,0.70);border-right:1px solid rgba(143,245,190,0.70);transform:translateY(-50%) rotate(45deg)}
.arrow-in{left:22%;width:13%}
.arrow-out{left:54%;width:10%}
.nebula-core{position:relative;min-height:240px;display:grid;place-items:center}
.core-ring{position:absolute;inset:28%;border:1px solid rgba(143,245,190,0.24);border-radius:50%;transform:rotate(-12deg);animation:core-orbit 10s linear infinite}
.core-ring.r2{inset:20% 26%;border-color:rgba(174,232,255,0.15);transform:rotate(18deg);animation-duration:14s;animation-direction:reverse}
.core-dot{position:relative;width:11px;height:11px;border-radius:50%;background:#DFFFEA;box-shadow:0 0 18px rgba(143,245,190,0.62),0 0 52px rgba(143,245,190,0.20)}
.core-dot::before,.core-dot::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:linear-gradient(90deg,transparent,rgba(223,255,234,0.46),transparent)}
.core-dot::before{width:92px;height:1px}.core-dot::after{width:1px;height:92px;background:linear-gradient(180deg,transparent,rgba(223,255,234,0.46),transparent)}
.core-label{position:absolute;bottom:42px;max-width:90px;text-align:center;font-family:var(--display);font-size:clamp(16px,1.4vw,20px);font-weight:800;letter-spacing:0;color:#D7FFAA;text-shadow:0 0 18px rgba(143,245,190,0.18);line-height:1}
.core-caption{position:absolute;bottom:25px;font-family:var(--mono);font-size:8.5px;font-weight:700;letter-spacing:0.07em;text-transform:uppercase;color:rgba(245,247,250,0.50)}
.rank-list{display:grid;gap:11px}
.rank-row{display:grid;grid-template-columns:28px minmax(126px,1.05fr) minmax(40px,0.54fr) 28px;align-items:center;gap:10px;min-height:58px;padding:8px 12px;border:1px solid rgba(245,247,250,0.12);
  border-radius:8px;background:rgba(2,4,7,0.66);backdrop-filter:blur(10px)}
.rank-row.top{border-color:rgba(143,245,190,0.30);background:rgba(143,245,190,0.08)}
.rank-row span{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:0.08em;color:var(--green)}
.rank-row b{display:flex;flex-direction:column;gap:2px;font-family:var(--display);font-size:17px;font-weight:600;color:var(--ink);letter-spacing:0;line-height:1.06}
.rank-row b em{font-family:var(--sans);font-style:normal;font-size:10.5px;font-weight:500;line-height:1.25;color:rgba(245,247,250,0.54);letter-spacing:0}
.rank-row i{display:block;height:4px;border-radius:100px;background:rgba(245,247,250,0.10);overflow:hidden}
.rank-row i::before{content:"";display:block;width:var(--score);height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--green),rgba(174,232,255,0.82));box-shadow:0 0 12px rgba(143,245,190,0.24)}
.rank-row strong{font-family:var(--mono);font-size:11px;font-weight:700;color:rgba(184,255,216,0.88);letter-spacing:0.02em;text-align:right}
@keyframes showcase-field{from{transform:translate3d(-2%,1%,0) scale(0.98);opacity:0.52}to{transform:translate3d(3%,-2%,0) scale(1.05);opacity:0.82}}
@keyframes core-orbit{from{transform:rotate(-12deg)}to{transform:rotate(348deg)}}

/* ---------- Problem visual explainer ---------- */
#problem.problem-section{overflow:hidden;background:
  radial-gradient(circle at 76% 28%,rgba(143,245,190,0.035),transparent 34%),
  linear-gradient(180deg,rgba(0,0,0,0.56),rgba(0,0,0,0.86) 22%,rgba(0,0,0,0.88) 78%,rgba(0,0,0,0.58))}
#problem.problem-section{padding-bottom:clamp(150px,20vh,250px)}
.problem-head{max-width:960px}
.problem-lede{position:relative;margin-top:clamp(22px,2.6vw,34px);padding-left:clamp(18px,2vw,24px);
  font-size:clamp(16px,1.25vw,19px);line-height:1.58;color:rgba(245,247,250,0.70);max-width:58ch}
.problem-lede::before{content:"";position:absolute;left:0;top:0.38em;bottom:0.38em;width:1px;background:linear-gradient(180deg,var(--green),rgba(143,245,190,0.04))}
.problem-lede b{color:#B8FFD8;font-weight:600}
.compare-grid{margin-top:clamp(52px,6vw,86px);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;
  border:1px solid rgba(245,247,250,0.12);border-radius:8px;overflow:hidden;background:rgba(245,247,250,0.10);max-width:1120px}
.compare-card{position:relative;min-height:clamp(220px,22vw,310px);padding:clamp(26px,3vw,44px);display:flex;flex-direction:column;justify-content:flex-start;
  background:linear-gradient(180deg,rgba(5,8,12,0.94),rgba(3,5,8,0.86));overflow:hidden}
.compare-card::before{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 86% 16%,rgba(174,232,255,0.08),transparent 34%),
  linear-gradient(135deg,rgba(245,247,250,0.05),transparent 42%);
  opacity:0.74;pointer-events:none}
.compare-card.featured{background:linear-gradient(180deg,rgba(143,245,190,0.12),rgba(5,8,12,0.88))}
.compare-card.featured::before{background:
  radial-gradient(circle at 72% 24%,rgba(143,245,190,0.18),transparent 32%),
  linear-gradient(135deg,rgba(143,245,190,0.10),transparent 48%)}
.compare-card span{position:relative;z-index:1;font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:var(--green)}
.compare-card h3{position:relative;z-index:1;margin-top:18px;min-height:calc(clamp(27px,3.2vw,46px) * 2.05);font-family:var(--display);font-size:clamp(27px,3.2vw,46px);font-weight:600;letter-spacing:0;line-height:1.0;color:var(--ink)}
.compare-card p{position:relative;z-index:1;margin-top:16px;font-size:clamp(15px,1.15vw,17px);line-height:1.58;color:rgba(245,247,250,0.70);max-width:45ch}
.engine-section{padding-top:clamp(120px,15vh,190px);background:
  radial-gradient(circle at 72% 14%,rgba(143,245,190,0.045),transparent 38%),
  linear-gradient(180deg,rgba(0,0,0,0.42),rgba(3,5,8,0.88) 16%,rgba(3,5,8,0.90) 82%,rgba(0,0,0,0.52))}
.engine-intro{max-width:820px;margin-bottom:clamp(56px,6vw,96px)}
.engine-intro h2{max-width:11ch}
.engine-intro-copy{margin-top:clamp(18px,2vw,28px);font-size:clamp(17px,1.4vw,21px);line-height:1.55;color:rgba(245,247,250,0.72);max-width:44ch}
.problem-strip{margin-top:clamp(34px,4vw,56px);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;
  border:1px solid rgba(245,247,250,0.12);border-radius:8px;overflow:hidden;background:rgba(245,247,250,0.10);max-width:1120px}
.problem-strip-item{min-height:172px;padding:clamp(22px,2.4vw,32px);display:flex;flex-direction:column;justify-content:flex-start;
  background:linear-gradient(180deg,rgba(5,8,12,0.96),rgba(3,5,8,0.88));gap:10px}
.problem-strip-item.solution{background:linear-gradient(180deg,rgba(143,245,190,0.10),rgba(3,5,8,0.92))}
.problem-strip-item span{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:var(--green)}
.problem-strip-item b{font-family:var(--display);font-size:clamp(20px,1.9vw,28px);font-weight:600;line-height:1.08;color:var(--ink);letter-spacing:0}
.problem-strip-item p{font-size:14.5px;line-height:1.55;color:rgba(245,247,250,0.70);max-width:34ch}
.problem-splits{margin-top:0;display:grid;gap:clamp(82px,9vw,132px)}
.problem-split{position:relative;display:grid;grid-template-columns:minmax(340px,0.40fr) minmax(0,0.60fr);min-height:clamp(440px,42vw,620px);
  border:1px solid rgba(245,247,250,0.13);border-radius:8px;overflow:hidden;background:rgba(3,5,8,0.94)}
.problem-split::after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(143,245,190,0.035)}
.split-statement{position:relative;z-index:1;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;
  padding:clamp(48px,5.2vw,76px);background:linear-gradient(180deg,rgba(247,249,251,0.98),rgba(224,229,235,0.94));color:#020407}
.split-statement::before{content:"";position:absolute;right:0;top:0;bottom:0;width:1px;background:rgba(2,4,7,0.12)}
.split-statement span{display:inline-block;width:max-content;margin-bottom:18px;padding:4px 7px;font-size:11px;line-height:1;color:#022817;background:rgba(143,245,190,0.78)}
.split-statement b{display:block;font-family:var(--display);font-size:clamp(42px,4.55vw,72px);font-weight:700;line-height:0.98;letter-spacing:0;
  color:#020407;max-width:10.4ch}
.split-statement p{margin-top:26px;font-size:clamp(16px,1.16vw,18px);line-height:1.6;color:rgba(2,4,7,0.62);max-width:34ch}
.split-field{position:relative;display:flex;align-items:center;padding:clamp(38px,4.4vw,68px);overflow:hidden;background:#020407}
.split-field::before{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(0,0,0,0.08),rgba(0,0,0,0.22)),
  radial-gradient(circle at 84% 24%,rgba(174,232,255,0.12),transparent 28%),
  radial-gradient(circle at 28% 70%,rgba(143,245,190,0.08),transparent 32%);
  opacity:0.82}
.field-particles{position:absolute;inset:-18%;opacity:0.74;transform:rotate(-8deg);background:
  radial-gradient(circle,rgba(247,251,255,0.78) 0 0.7px,transparent 1.15px) 0 0/17px 17px,
  radial-gradient(circle,rgba(174,232,255,0.42) 0 0.9px,transparent 1.45px) 9px 11px/31px 31px,
  radial-gradient(circle,rgba(143,245,190,0.30) 0 0.8px,transparent 1.35px) 4px 7px/47px 47px;
  mask-image:linear-gradient(112deg,transparent 0 9%,#000 28% 72%,transparent 92%),
    radial-gradient(ellipse at 58% 48%,#000 0 48%,transparent 78%);
  -webkit-mask-image:linear-gradient(112deg,transparent 0 9%,#000 28% 72%,transparent 92%),
    radial-gradient(ellipse at 58% 48%,#000 0 48%,transparent 78%)}
.field-particles::before,.field-particles::after{content:"";position:absolute;inset:0;background:
  radial-gradient(ellipse at 50% 48%,transparent 0 28%,rgba(174,232,255,0.32) 29%,transparent 30.2%,transparent 39%,rgba(245,247,250,0.22) 40%,transparent 41.2%),
  radial-gradient(ellipse at 62% 54%,transparent 0 20%,rgba(143,245,190,0.26) 21%,transparent 22.2%);
  filter:blur(0.2px);opacity:0.52}
.field-particles::after{transform:translate(7%,9%) scale(0.78) rotate(18deg);opacity:0.32}
.split-list{position:relative;z-index:1;width:min(100%,680px);margin-left:auto;display:grid;gap:1px;background:rgba(245,247,250,0.10);
  border:1px solid rgba(245,247,250,0.12);border-radius:8px;overflow:hidden}
.split-card{position:relative;padding:clamp(22px,2.5vw,34px);background:rgba(3,5,8,0.82);backdrop-filter:blur(10px);display:grid;
  grid-template-columns:42px minmax(0,1fr);column-gap:18px;align-items:start}
.split-card.is-active{background:linear-gradient(180deg,rgba(143,245,190,0.055),rgba(3,5,8,0.84));box-shadow:inset 0 0 0 1px rgba(143,245,190,0.10)}
.split-card span{grid-row:1 / span 2;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(143,245,190,0.34);background:rgba(143,245,190,0.08);font-size:11px;color:var(--green)}
.split-card b{display:block;margin-top:4px;font-family:var(--display);font-size:clamp(20px,1.8vw,29px);font-weight:600;letter-spacing:0;line-height:1.08;color:var(--ink)}
.split-card p{grid-column:2;margin-top:10px;font-size:14.5px;line-height:1.55;color:rgba(245,247,250,0.70);max-width:42ch}
.ranking-split{grid-template-columns:minmax(0,0.60fr) minmax(340px,0.40fr)}
.ranking-split .split-statement{order:2;background:linear-gradient(180deg,rgba(230,255,242,0.98),rgba(212,235,226,0.95))}
.ranking-split .split-statement::before{left:0;right:auto}
.ranking-split .split-field{order:1}
.ranking-split .split-list{margin-left:0;margin-right:auto}
/* ---------- Two-up cards (alethia image pair) ---------- */
.pair{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2vw,26px);margin-top:clamp(40px,5vw,66px)}
.card{position:relative;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--card);
  min-height:300px;display:flex;flex-direction:column;justify-content:flex-end}
.card .card-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0.42;filter:saturate(0.8) brightness(0.62)}
.card .card-body{position:relative;z-index:2;padding:28px;background:linear-gradient(0deg,rgba(0,0,0,0.9),rgba(0,0,0,0) 100%)}
.card .card-tag{font-size:11px;color:var(--green);margin-bottom:10px}
.card .card-title{font-size:clamp(18px,1.7vw,23px);font-weight:600;letter-spacing:0;line-height:1.2}
.card .card-note{margin-top:9px;font-size:13.5px;color:var(--ink-2);line-height:1.5}
.pair-caption{margin-top:22px;font-size:14px;color:var(--muted);line-height:1.6;max-width:74ch}
.pair-caption a{color:var(--ink-2);border-bottom:1px solid var(--line-2);white-space:nowrap;transition:color 0.3s,border-color 0.3s}
.pair-caption a:hover{color:var(--green);border-color:var(--green)}

/* ---------- Centered rigor section ---------- */
.center{max-width:900px;margin:0 auto;text-align:center}
.center .lede{margin-left:auto;margin-right:auto}
.frontier-section{background:
  linear-gradient(180deg,rgba(0,0,0,0.28),rgba(5,8,12,0.52)),
  rgba(0,0,0,0.34)}
.frontier-grid{display:grid;grid-template-columns:minmax(0,0.82fr) minmax(0,1.18fr);gap:clamp(42px,6vw,92px);align-items:center}
.frontier-copy .eyebrow{margin-bottom:24px}
.frontier-copy h2{max-width:11ch}
.frontier-lede{margin-top:24px;font-size:clamp(17px,1.45vw,21px);line-height:1.55;color:rgba(245,247,250,0.76);max-width:38ch}
.frontier-equation{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr) auto minmax(0,1fr);align-items:stretch;
  border-top:1px solid rgba(245,247,250,0.14);border-bottom:1px solid rgba(245,247,250,0.14)}
.equation-term{position:relative;display:flex;flex-direction:column;justify-content:center;min-height:270px;padding:clamp(24px,2.8vw,38px) clamp(18px,2.2vw,30px)}
.equation-term span{font-size:11px;color:var(--green)}
.equation-term b{margin-top:18px;font-family:var(--display);font-size:clamp(24px,2.4vw,36px);font-weight:600;line-height:1.05;color:var(--ink)}
.equation-term p{margin-top:14px;font-size:14.5px;line-height:1.55;color:rgba(245,247,250,0.66);max-width:25ch}
.nebula-term{background:linear-gradient(180deg,rgba(143,245,190,0.10),rgba(143,245,190,0.02))}
.output-term{background:linear-gradient(180deg,rgba(198,180,255,0.10),rgba(198,180,255,0.02))}
.equation-mark{display:flex;align-items:center;justify-content:center;width:clamp(34px,4vw,56px);font-family:var(--display);
  font-size:clamp(26px,3vw,42px);color:rgba(143,245,190,0.76);border-left:1px solid rgba(245,247,250,0.10);border-right:1px solid rgba(245,247,250,0.10)}
/* ---------- The engine: feature rows (alethia 2x2) ---------- */
.engine-head{display:grid;grid-template-columns:1fr;gap:20px;margin-bottom:clamp(44px,5vw,72px);max-width:78ch}
.rows{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden}
.row{background:var(--bg);padding:clamp(24px,2.4vw,36px);position:relative}
.row .row-idx{font-size:12px;color:var(--muted);margin-bottom:18px;display:flex;align-items:center;gap:10px}
.row .row-idx .dotm{width:8px;height:8px;border-radius:50%;background:var(--green)}
.row.violet .row-idx .dotm{background:var(--purple)}
.row .row-flag{position:absolute;top:clamp(24px,2.4vw,36px);right:clamp(24px,2.4vw,36px);font-size:10.5px;
  color:var(--purple);border:1px solid rgba(198,180,255,0.28);border-radius:100px;padding:4px 10px}
.row .row-title{font-size:clamp(19px,1.8vw,25px);font-weight:600;letter-spacing:0;line-height:1.15}
.row .row-body{margin-top:11px;font-size:14.5px;line-height:1.55;color:var(--ink-2);max-width:44ch}
.row .row-body + .row-body{margin-top:8px}
.row .text-link{margin-top:16px}
.model-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.model-tags span{font-family:var(--mono);font-size:10.5px;letter-spacing:0.06em;color:rgba(245,247,250,0.72);
  border:1px solid rgba(143,245,190,0.22);border-radius:100px;padding:5px 9px;background:rgba(143,245,190,0.045)}
/* ---------- Value grid (partner offer) ---------- */
.value-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(16px,2vw,24px);margin-top:clamp(42px,5vw,68px);max-width:1080px}
.value-card{background:rgba(5,8,12,0.78);border:1px solid rgba(245,247,250,0.11);border-radius:8px;padding:clamp(28px,2.6vw,42px);display:flex;flex-direction:column;gap:14px;min-height:198px}
.value-num{font-size:12px;color:var(--green)}
.value-title{font-size:clamp(17px,1.5vw,21px);font-weight:600;letter-spacing:0;line-height:1.2}
.value-body{font-size:15px;line-height:1.58;color:var(--ink-2);max-width:42ch}
.offer-note{margin-top:clamp(28px,3vw,40px);font-size:15px;color:var(--muted);line-height:1.6;max-width:58ch}
.offer-note b{color:var(--ink-2);font-weight:500}
.offer-cta{margin-top:28px}
a:focus-visible,button:focus-visible{outline:2px solid var(--green);outline-offset:3px}

/* ---------- Footer endmark ---------- */
#footer{position:relative;z-index:2;min-height:clamp(390px,56vw,700px);display:flex;align-items:center;overflow:hidden;
  margin-top:clamp(-64px,-4vw,-32px);padding:calc(clamp(38px,6vw,80px) + clamp(90px,10vw,150px)) clamp(18px,4vw,64px) clamp(38px,6vw,80px);
  background:linear-gradient(180deg,rgba(0,0,0,0) 0%,rgba(3,14,7,0.34) 26%,rgba(4,17,8,0.78) 62%,rgba(2,9,5,0.96));border-top:0}
#footer::before{content:"";position:absolute;inset:-18%;z-index:0;background:
  radial-gradient(circle at 48% 42%,rgba(143,245,190,0.18),transparent 34%),
  radial-gradient(circle at 72% 58%,rgba(125,220,255,0.12),transparent 28%),
  linear-gradient(105deg,rgba(8,32,14,0.56),rgba(3,12,6,0.50) 48%,rgba(16,36,12,0.58));
  filter:blur(12px);opacity:0.74;animation:footer-bloom 18s ease-in-out infinite alternate;
  -webkit-mask-image:linear-gradient(180deg,transparent 0%,#000 26%,#000 100%);mask-image:linear-gradient(180deg,transparent 0%,#000 26%,#000 100%)}
#footer::after{content:"";position:absolute;inset:0;z-index:1;background:
  linear-gradient(180deg,rgba(0,0,0,0.02),rgba(0,0,0,0.52)),
  radial-gradient(ellipse at 50% 48%,rgba(201,245,159,0.10),transparent 58%);
  opacity:0.44;mix-blend-mode:screen;animation:footer-scan 24s ease-in-out infinite alternate;
  -webkit-mask-image:linear-gradient(180deg,transparent 0%,#000 30%,#000 100%);mask-image:linear-gradient(180deg,transparent 0%,#000 30%,#000 100%)}
.footer-ambient{position:absolute;inset:-10% -8%;z-index:2;pointer-events:none;overflow:hidden;isolation:isolate}
.footer-ambient::before{content:"";position:absolute;inset:-16%;background:
  conic-gradient(from 24deg at 28% 56%,transparent 0 22%,rgba(143,245,190,0.16) 34%,rgba(174,232,255,0.12) 47%,transparent 62% 100%);
  filter:blur(28px);opacity:0.36;mix-blend-mode:screen;animation:footer-nebula-turn 18s ease-in-out infinite alternate}
.footer-ambient::after{content:"";position:absolute;left:-20%;top:34%;width:64%;height:2px;background:linear-gradient(90deg,transparent,rgba(223,255,234,0.36),transparent);
  filter:blur(1px);opacity:0.42;transform:rotate(-8deg);animation:footer-light-sweep 11s ease-in-out infinite}
.footer-dust{position:absolute;inset:-6%;opacity:0.44;background:
  radial-gradient(circle,rgba(245,255,250,0.54) 0 0.7px,transparent 1.15px) 0 0/34px 34px,
  radial-gradient(circle,rgba(174,232,255,0.36) 0 0.8px,transparent 1.3px) 17px 11px/58px 58px,
  radial-gradient(circle,rgba(201,245,159,0.28) 0 0.75px,transparent 1.25px) 31px 29px/83px 83px;
  transform:translate3d(0,0,0);animation:footer-dust-drift 18s linear infinite;
  -webkit-mask-image:linear-gradient(90deg,#000 0%,#000 72%,transparent 100%);mask-image:linear-gradient(90deg,#000 0%,#000 72%,transparent 100%)}
.footer-aurora{position:absolute;left:-12%;right:-10%;height:36%;border-radius:50%;filter:blur(28px);mix-blend-mode:screen;opacity:0.46;
  transform-origin:34% 50%;animation:footer-aurora-drift 13s ease-in-out infinite alternate;will-change:transform,opacity}
.aurora-a{top:16%;background:linear-gradient(96deg,transparent 4%,rgba(143,245,190,0.06) 20%,rgba(201,245,159,0.28) 43%,rgba(174,232,255,0.12) 62%,transparent 86%);
  transform:rotate(-8deg) translate3d(-4%,0,0)}
.aurora-b{bottom:2%;background:linear-gradient(104deg,transparent 8%,rgba(174,232,255,0.10) 26%,rgba(143,245,190,0.20) 54%,rgba(201,245,159,0.09) 72%,transparent 92%);
  opacity:0.34;animation-duration:16s;animation-direction:alternate-reverse;transform:rotate(7deg) translate3d(2%,0,0)}
.footer-orbit{position:absolute;left:clamp(32px,8vw,110px);top:50%;width:clamp(520px,58vw,980px);height:clamp(170px,18vw,290px);
  border:1px solid rgba(174,232,255,0.18);border-radius:50%;opacity:0.52;transform:translateY(-50%) rotate(-8deg);
  animation:footer-orbit-breathe 14s ease-in-out infinite alternate;will-change:transform,opacity}
.footer-orbit::before{content:"";position:absolute;left:12%;top:47%;width:6px;height:6px;border-radius:50%;background:#C9F59F;
  box-shadow:0 0 12px rgba(201,245,159,0.46),0 0 34px rgba(143,245,190,0.18);opacity:0.70}
.orbit-b{left:clamp(96px,18vw,280px);top:43%;width:clamp(420px,46vw,760px);height:clamp(250px,24vw,390px);
  border-color:rgba(201,245,159,0.15);opacity:0.38;transform:translateY(-50%) rotate(14deg);animation-duration:18s;animation-direction:alternate-reverse}
.orbit-b::before{left:72%;top:28%;width:4px;height:4px;background:#AEE8FF;box-shadow:0 0 11px rgba(174,232,255,0.42)}
.footer-starpoint{position:absolute;width:5px;height:5px;border-radius:50%;background:#EFFFF8;opacity:0.58;
  box-shadow:0 0 14px rgba(223,255,234,0.48),0 0 46px rgba(143,245,190,0.20);animation:footer-star-meditate 5.8s ease-in-out infinite}
.star-a{left:68%;top:21%;animation-delay:-2s}.star-b{left:33%;bottom:24%;width:3px;height:3px;background:#AEE8FF;animation-delay:-5s}
.star-c{left:50%;top:34%;width:4px;height:4px;background:#C9F59F;animation-delay:-1s}
.star-d{left:16%;top:62%;width:3px;height:3px;background:#EFFFF8;animation-delay:-3.8s}
.footer-lockup{position:relative;z-index:3;width:100%;display:flex;align-items:center;justify-content:flex-start}
.footer-lockup::before{content:"";position:absolute;left:24%;top:58%;z-index:-1;width:clamp(220px,34vw,560px);aspect-ratio:1;
  transform:translate(-50%,-50%);border-radius:50%;background:
  radial-gradient(circle,rgba(201,245,159,0.18) 0%,rgba(143,245,190,0.10) 30%,transparent 70%);
  filter:blur(36px);opacity:0.42;animation:footer-star 10s ease-in-out infinite alternate}
.wordmark{position:relative;z-index:3;width:max-content;max-width:100%;margin:0;transform:translateX(-0.7vw);
  font-weight:800;letter-spacing:0;line-height:0.72;font-size:clamp(96px,27vw,470px);text-align:left;
  color:#C9F59F;background:none;
  user-select:none;text-shadow:0 0 18px rgba(128,203,89,0.10);filter:drop-shadow(0 0 10px rgba(201,245,159,0.10));
  animation:footer-word-breathe 8s ease-in-out infinite alternate}
@keyframes footer-bloom{from{transform:translate3d(-1.4%,0.8%,0) scale(1.02);filter:blur(13px) saturate(0.96)}to{transform:translate3d(1.4%,-0.8%,0) scale(1.05);filter:blur(10px) saturate(1.18)}}
@keyframes footer-scan{from{transform:translateY(-1.2%);opacity:0.34}to{transform:translateY(1.2%);opacity:0.50}}
@keyframes footer-star{from{opacity:0.26;transform:translate(-50%,-50%) scale(0.96)}to{opacity:0.46;transform:translate(-50%,-50%) scale(1.04)}}
@keyframes footer-dust-drift{from{transform:translate3d(0,0,0)}to{transform:translate3d(-126px,62px,0)}}
@keyframes footer-nebula-turn{from{transform:translate3d(-3%,2%,0) rotate(-8deg) scale(0.96);opacity:0.20}to{transform:translate3d(5%,-2%,0) rotate(10deg) scale(1.08);opacity:0.46}}
@keyframes footer-light-sweep{0%{transform:translateX(-15%) rotate(-8deg);opacity:0}28%{opacity:0.46}68%{opacity:0.26}100%{transform:translateX(170%) rotate(-8deg);opacity:0}}
@keyframes footer-aurora-drift{from{transform:rotate(-9deg) translate3d(-7%,2%,0) scale(0.96);opacity:0.26}to{transform:rotate(-2deg) translate3d(8%,-3%,0) scale(1.08);opacity:0.54}}
@keyframes footer-orbit-breathe{from{transform:translateY(-50%) rotate(-13deg) scale(0.96);opacity:0.30}to{transform:translateY(-50%) rotate(5deg) scale(1.05);opacity:0.58}}
@keyframes footer-star-meditate{0%,100%{transform:scale(0.62);opacity:0.24}38%{transform:scale(1.5);opacity:0.88}70%{transform:scale(0.92);opacity:0.44}}
@keyframes footer-word-breathe{from{filter:drop-shadow(0 0 8px rgba(201,245,159,0.08));color:#C4F39D}to{filter:drop-shadow(0 0 24px rgba(201,245,159,0.22));color:#D5FFB2}}

/* ---------- Reveal ---------- */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity 0.9s var(--ease),transform 0.9s var(--ease)}
.js .reveal.d1{transition-delay:0.08s}.js .reveal.d2{transition-delay:0.16s}.js .reveal.d3{transition-delay:0.24s}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:clamp(24px,5vw,42px)}
  .hero h1{max-width:14ch}
  .hero-showcase{max-width:620px}
  .problem-head,.compare-grid,.problem-split,.pair,.rows,.frontier-grid{grid-template-columns:1fr}
  .problem-strip{grid-template-columns:1fr}
  .problem-split{min-height:0}
  .ranking-split{grid-template-columns:1fr}
  .ranking-split .split-statement,.ranking-split .split-field{order:0}
  .split-statement{min-height:300px}
  .split-list{width:100%;margin-left:0;margin-right:0}
  .value-grid{grid-template-columns:1fr 1fr}
  .frontier-copy h2{max-width:14ch}
  .frontier-lede{max-width:52ch}
}
@media (max-width:600px){
  #bg-scrim{background:
    linear-gradient(180deg,rgba(0,0,0,0.30) 0%,rgba(0,0,0,0.16) 44%,rgba(0,0,0,0.42) 100%),
    linear-gradient(90deg,rgba(0,0,0,0.96) 0%,rgba(0,0,0,0.82) 58%,rgba(0,0,0,0.38) 100%)}
  .section{padding-left:22px;padding-right:22px}
  .hero{min-height:100svh;padding-top:108px;padding-bottom:50px;align-items:flex-start}
  .hero-grid{gap:18px}
  .hero h1{max-width:13ch;font-size:clamp(31px,8.2vw,37px);line-height:1.04}
  .hero-subcopy{margin-top:12px;max-width:31ch;font-size:15.5px;line-height:1.42}
  .h-xl{font-size:clamp(36px,9.8vw,42px);line-height:1.02}
  .hero .lede{font-size:16px;line-height:1.58;color:rgba(245,247,250,0.80)}
  .hero-showcase{min-height:300px;border-radius:8px;order:2}
  .hero-action{order:3}
  .hero-copy{display:contents}
  .showcase-top,.showcase-foot{padding:13px 14px;font-size:8.2px;gap:8px;letter-spacing:0.055em}
  .showcase-body{inset:44px 0 40px;grid-template-columns:0.52fr 0.74fr 1.36fr;gap:8px;padding:14px}
  .candidate-stack{gap:8px}
  .candidate-stack span{width:30px;height:30px;min-height:0;font-size:9px}
  .candidate-stack span:nth-child(2){transform:translateX(8px)}
  .candidate-stack span:nth-child(3){transform:translateX(2px)}
  .candidate-stack span:nth-child(4){transform:translateX(9px)}
  .arrow-in{left:19%;width:12%}
  .arrow-out{left:47%;width:10%}
  .nebula-core{min-height:176px}
  .core-ring{inset:28%}.core-ring.r2{inset:21% 22%}
  .core-dot{width:9px;height:9px}
  .core-dot::before{width:58px}.core-dot::after{height:58px}
  .core-label{bottom:35px;font-size:13px}
  .core-caption{bottom:22px;font-size:6.8px;letter-spacing:0.055em}
  .rank-list{gap:7px}
  .rank-row{grid-template-columns:18px minmax(74px,1fr) 22px 20px;gap:5px;min-height:45px;padding:6px 7px}
  .rank-row span{font-size:8.5px}
  .rank-row b{font-size:11.2px}
  .rank-row b em{font-size:7.4px;line-height:1.16}
  .rank-row i{height:3px}
  .rank-row strong{font-size:8.4px}
  .service-flow{gap:7px;margin-top:14px;max-width:32ch;font-size:10px;line-height:1.45}
  .service-flow span,.service-flow b{min-height:22px;white-space:normal}
  .service-flow i{width:18px}
  .hero-action{margin-top:16px;gap:14px}
  .hero-action::before{top:-10px;width:54px}
  .hero-action p{font-size:16px;max-width:27ch;line-height:1.48}
  .hero-action .pill{min-height:48px;padding:12px 14px 12px 18px;font-size:14.5px}
  .hero-action .pill .arw{width:24px;height:24px;font-size:13px}
  .problem-section{background:
    radial-gradient(circle at 86% 22%,rgba(143,245,190,0.07),transparent 42%),
    rgba(0,0,0,0.34)}
  .problem-strip{margin-top:28px}
  .compare-grid{margin-top:28px}
  .compare-card{min-height:0;padding:22px}
  .compare-card h3{font-size:30px}
  .compare-card p{font-size:14.5px}
  .problem-strip-item{min-height:0;padding:20px}
  .problem-splits{gap:44px;margin-top:44px}
  .split-statement{min-height:250px;padding:24px}
  .split-statement span{margin-bottom:12px}
  .split-statement b{max-width:9ch;font-size:40px}
  .split-statement p{margin-top:18px;font-size:15px}
  .split-field{padding:18px}
  .field-particles{opacity:0.58}
  .split-card{grid-template-columns:36px minmax(0,1fr);column-gap:14px;padding:18px}
  .split-card span{width:30px;height:30px}
  .split-card b{font-size:22px}
  .split-card p{font-size:14px}
  .frontier-equation{grid-template-columns:1fr;border:1px solid rgba(245,247,250,0.14)}
  .equation-term{min-height:0;padding:22px}
  .equation-term b{font-size:26px}
  .equation-mark{width:100%;height:38px;border-left:0;border-right:0;border-top:1px solid rgba(245,247,250,0.10);border-bottom:1px solid rgba(245,247,250,0.10);font-size:26px}
  .value-grid{grid-template-columns:1fr}
  .nav-links a:not(.pill){display:none}
  .brand-div,.brand-desc{display:none}
  #footer{min-height:260px;padding-left:18px;padding-right:18px}
  .footer-ambient{inset:-12% -16%}
  .footer-dust{opacity:0.30}
  .footer-ambient::before{filter:blur(22px);opacity:0.28}
  .footer-ambient::after{height:1px;opacity:0.30}
  .footer-aurora{filter:blur(22px);opacity:0.30}
  .footer-orbit{left:-18%;width:118vw;height:36vw;opacity:0.30}
  .orbit-b{left:4%;width:96vw;height:58vw;opacity:0.22}
  .footer-starpoint{opacity:0.44}
  .footer-lockup::before{width:240px;filter:blur(24px)}
  .wordmark{font-size:clamp(76px,30vw,140px);transform:none}
  .row .row-flag{position:static;display:inline-block;margin-bottom:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:0.001ms!important;scroll-behavior:auto!important}
  #footer::before,#footer::after,.footer-ambient *,.wordmark{animation:none!important}
  .js .reveal{opacity:1;transform:none}
}