:root {
  color-scheme: dark;
  --night: #05070d;
  --ink: #eaf0ff;
  --muted: #b5c1dd;
  --cyan: #50d9ff;
  --violet: #9d4dff;
  --line: rgba(130, 177, 235, .24);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--night); color: var(--ink); font-family: "DM Sans", Arial, sans-serif; }
a { color: inherit; }
a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
.skip-link { position: absolute; z-index: 100; top: -100px; left: 1rem; padding: .7rem 1rem; background: #fff; color: #000; }
.skip-link:focus { top: 1rem; }
.site-header { height: 82px; padding: 0 clamp(22px, 4vw, 72px); display: flex; align-items: center; gap: 3rem; border-bottom: 1px solid rgba(161,184,235,.15); background: #05070beb; position: relative; z-index: 10; }
.brand { display: flex; flex-direction: column; text-decoration: none; line-height: 1; min-width: 234px; }
.brand-word, .footer-brand { font-family: "Rajdhani", Arial, sans-serif; font-weight: 600; letter-spacing: .055em; font-size: 2rem; }
.brand-orb, .footer-orb, .hero-orb { display: inline-block; width: .87em; height: .87em; margin-left: -.01em; vertical-align: -.04em; background: url("assets/energy-o.png") center / contain no-repeat; }
.brand-sub, .footer-sub { font-size: .54rem; letter-spacing: .56em; color: #a7badf; padding-left: 3px; }
.site-header nav { display: flex; gap: clamp(1.3rem,3vw,3.5rem); margin: auto; }
.site-header nav a { font-size: .72rem; text-decoration: none; text-transform: uppercase; letter-spacing: .17em; color: #c7d8f6; padding: .7rem 0; border-bottom: 1px solid transparent; }
.site-header nav a:hover { color: white; border-color: var(--violet); }
.header-motto { color: #c796ff; font-size: .63rem; letter-spacing: .14em; white-space: nowrap; }
.hero { min-height: min(760px, calc(100svh - 82px)); position: relative; isolation: isolate; overflow: hidden; display: flex; align-items: center; }
.hero-space, .hero-grid, .hero-shade { position: absolute; inset: 0; z-index: -3; }
.hero-space { background: url("assets/earth-space.webp") center 62% / cover no-repeat; }
.hero-grid { z-index: -2; opacity: .22; background-image: linear-gradient(rgba(77,141,235,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(77,141,235,.14) 1px,transparent 1px); background-size: 90px 90px; mask-image: linear-gradient(to bottom,#000,transparent 70%); }
.ora-portrait { position: absolute; z-index: -1; height: 100%; width: auto; right: -16%; bottom: 0; object-fit: contain; object-position: bottom right; filter: drop-shadow(-38px 0 38px rgba(1,4,16,.72)); mask-image: linear-gradient(to right,transparent 0%,#000 24%,#000 80%,transparent 100%); }
.hero-shade { z-index: 0; background: linear-gradient(90deg,rgba(2,4,10,.83) 0%,rgba(2,4,10,.63) 33%,rgba(2,4,10,.08) 67%),linear-gradient(0deg,rgba(2,4,10,.84),transparent 27%,transparent 80%,rgba(2,4,10,.2)); pointer-events: none; }
.hero-content { position: relative; z-index: 2; padding: 4.5rem clamp(22px,4.5vw,78px) 7rem; max-width: 765px; }
.eyebrow { font-size: .65rem; letter-spacing: .42em; color: #bad6ff; font-weight: 700; margin: 0 0 1.25rem; }
.hero h1 { margin: 0; font-family: "Rajdhani", Arial, sans-serif; font-size: clamp(4.3rem, 9.2vw, 9.3rem); line-height: .83; letter-spacing: .015em; font-weight: 700; text-shadow: 0 2px 25px rgba(190,200,255,.15); }
.hero-orb { width: 1em; height: 1em; margin-left: -.16em; vertical-align: -.12em; background-size: 122%; }
.hero-equation { font-size: clamp(.8rem,1.2vw,1.05rem); letter-spacing: .75em; color: #c7d4f2; margin: 1.05rem 0 1.3rem; text-align: center; width: min(100%, 650px); }
.hero-equation span { color: #c990ff; }
.disciplines { color: var(--cyan); font-size: clamp(.6rem,.95vw,.8rem); letter-spacing: .3em; white-space: nowrap; }
.disciplines b { color: #b970ff; margin: 0 .75rem; }
.accent-line { height: 1px; width: 65px; background: #b34cff; box-shadow: 0 0 12px #b34cff; margin: 2rem 0; }
.hero h2 { font: 600 clamp(1.35rem,2vw,2rem)/1.15 "Rajdhani",Arial,sans-serif; text-transform: uppercase; letter-spacing: .06em; margin: 0 0 .7rem; }
.hero-description { max-width: 570px; color: #d7e2f5; font-size: clamp(.9rem,1.2vw,1.04rem); line-height: 1.72; margin: 0; }
.hero-actions { display: flex; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }
.button { min-height: 49px; padding: .9rem 1.45rem; display: inline-flex; align-items: center; justify-content: center; gap: 1.5rem; border-radius: 3px; text-transform: uppercase; letter-spacing: .06em; text-decoration: none; font-size: .72rem; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button-primary { background: linear-gradient(110deg,#a840ff,#7219f6); color: #fff; border: 1px solid #be68ff; box-shadow: 0 0 22px #8f30f980; }
.button-primary:hover { box-shadow: 0 0 30px #a146ffaf; }
.button-secondary { background: rgba(5,11,23,.65); border: 1px solid #6580a7; color: #fff; }
.button-secondary:hover { background: rgba(54,27,95,.65); }
.ora-caption { position: absolute; right: 4.5%; bottom: 20%; z-index: 2; display: flex; flex-direction: column; gap: .5rem; color: #a6c1ec; text-shadow: 0 2px 8px #000; }
.ora-caption strong { font-size: 1.1rem; letter-spacing: .32em; font-weight: 500; }
.ora-caption span { font-size: .58rem; letter-spacing: .21em; line-height: 1.7; }
.hero-bottom { position: absolute; bottom: 0; width: 100%; display: flex; justify-content: center; gap: clamp(1rem,4vw,4rem); background: linear-gradient(90deg,transparent,#05070d99,transparent); padding: 1rem; border-top: 1px solid rgba(84,161,237,.17); color: #85b6e3; font-size: .56rem; letter-spacing: .2em; }
.section-shell { max-width: 1450px; margin: 0 auto; padding: clamp(4rem,7vw,7rem) clamp(22px,4.5vw,78px); }
.about { display: grid; grid-template-columns: 1fr 1.2fr; gap: 1rem 5rem; position: relative; isolation: isolate; background: radial-gradient(ellipse 42% 82% at 13% 42%, rgba(106, 44, 174, .22), transparent 74%), radial-gradient(ellipse 38% 76% at 84% 38%, rgba(25, 119, 172, .15), transparent 76%), linear-gradient(110deg, #0b0b19 0%, #090d1b 48%, #060b14 100%); border-inline: 1px solid rgba(117, 87, 190, .12); box-shadow: 0 0 90px rgba(60, 39, 126, .13); }
.about::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: .22; background-image: linear-gradient(rgba(101, 143, 212, .18) 1px, transparent 1px), linear-gradient(90deg, rgba(101, 143, 212, .18) 1px, transparent 1px); background-size: 86px 86px; mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent); }
.about::after { content: ""; position: absolute; width: min(36vw, 480px); aspect-ratio: 1; left: -7%; top: 2%; z-index: -1; border: 1px solid rgba(148, 77, 255, .17); border-radius: 50%; box-shadow: 0 0 0 54px rgba(139, 62, 242, .025), 0 0 0 110px rgba(67, 160, 228, .018), inset 0 0 42px rgba(132, 55, 225, .08); pointer-events: none; }
.section-heading h2, .downloads h2, .closing h2 { font: 600 clamp(2.4rem,5vw,4.6rem)/1 "Rajdhani",Arial,sans-serif; letter-spacing: .025em; margin: 0; }
.about-copy { color: #ccd8ed; font-size: 1.04rem; line-height: 1.8; }
.about-copy p { margin: 0 0 1rem; }
.idea-path { grid-column: 1 / -1; color: #89bde7; font-size: .7rem; letter-spacing: .15em; border-top: 1px solid var(--line); padding-top: 1.6rem; margin-top: 2rem; }
.idea-path span { color: #a457fa; padding: 0 .6rem; }
.downloads { border-top: 1px solid var(--line); }
.downloads-heading { display: flex; justify-content: space-between; gap: 3rem; align-items: end; margin-bottom: 2.3rem; }
.downloads-heading > p { max-width: 485px; color: var(--muted); line-height: 1.6; margin: 0; }
.download-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.3rem; }
.download-card { min-height: 260px; background: linear-gradient(145deg,#0b1120,#060910 75%); border: 1px solid #2e486d; border-radius: 8px; padding: 1.8rem; position: relative; overflow: hidden; }
.download-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 2px; background: linear-gradient(90deg,transparent,#9d4dff,transparent); opacity: .7; }
.card-icon { display: block; color: #b66aff; text-shadow: 0 0 18px #9d4dff; font-size: 2.4rem; line-height: 1; height: 55px; }
.download-card h3 { font: 600 1.45rem "Rajdhani",Arial,sans-serif; text-transform: uppercase; letter-spacing: .06em; margin: 1.4rem 0 .25rem; }
.download-card p { color: #b9c8de; line-height: 1.55; margin: 0 0 1.7rem; min-height: 3rem; }
.status { color: #bdb0df; border: 1px solid #4a3c69; padding: .45rem .65rem; border-radius: 3px; font-size: .65rem; text-transform: uppercase; letter-spacing: .1em; }
.closing { min-height: 325px; position: relative; isolation: isolate; display: flex; align-items: center; border-block: 1px solid var(--line); overflow: hidden; }
.closing-image { position: absolute; z-index: -2; inset: 0; background: url("assets/cosmic-mountains.webp") center 56% / cover no-repeat; }
.closing::before { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(90deg,#05070df2,rgba(5,7,13,.55),#05070d66),linear-gradient(0deg,#05070d99,transparent); }
.closing-content { padding: 4rem clamp(22px,4.5vw,78px); width: 100%; max-width: 1450px; margin: auto; }
.closing p:last-child { color: #d5e0f6; line-height: 1.6; }
.site-footer { padding: 2.5rem clamp(22px,4.5vw,78px); display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.site-footer > div { display: flex; flex-direction: column; }
.footer-brand { font-size: 1.75rem; line-height: 1; }
.site-footer p { color: #9fb1d0; font-size: .8rem; letter-spacing: .12em; }
.site-footer small { color: #8b9ab3; white-space: nowrap; }
@media (max-width: 1020px) {
  .header-motto { display: none; }
  .site-header nav { margin-left: auto; margin-right: 0; }
  .hero { min-height: 720px; }
  .ora-portrait { right: -30%; opacity: .82; }
  .hero-shade { background: linear-gradient(90deg,rgba(2,4,10,.91),rgba(2,4,10,.62) 52%,rgba(2,4,10,.16)),linear-gradient(0deg,rgba(2,4,10,.86),transparent 30%); }
  .ora-caption { display: none; }
}
@media (max-width: 700px) {
  .site-header { height: 72px; padding-inline: 20px; }
  .brand { min-width: 0; }
  .brand-word { font-size: 1.55rem; }
  .brand-sub { font-size: .43rem; letter-spacing: .4em; }
  .site-header nav { gap: 1rem; }
  .site-header nav a { font-size: .64rem; letter-spacing: .08em; }
  .hero { min-height: 830px; align-items: start; }
  .hero-space { background-position: 51% bottom; }
  .ora-portrait { height: 58%; right: -43%; bottom: 3%; mask-image: linear-gradient(to bottom, transparent, #000 14%, #000 86%, transparent); opacity: .7; }
  .hero-shade { background: linear-gradient(180deg,#03050aee 0%,#03050abc 32%,#03050a18 64%,#03050af0 100%),linear-gradient(90deg,#03050aaa,transparent 80%); }
  .hero-content { padding: 4.2rem 22px 13rem; }
  .hero h1 { font-size: clamp(4rem,17vw,6.7rem); }
  .hero-equation { text-align: left; letter-spacing: .48em; }
  .disciplines { white-space: normal; line-height: 2; letter-spacing: .14em; max-width: 430px; }
  .disciplines b { margin: 0 .25rem; }
  .accent-line { margin: 1.2rem 0; }
  .hero-description { max-width: 540px; }
  .hero-actions { gap: .65rem; }
  .button { padding: .8rem 1rem; }
  .hero-bottom { justify-content: space-around; gap: .2rem; flex-wrap: wrap; }
  .hero-bottom span { padding: .2rem; }
  .about { display: block; }
  .about-copy { margin-top: 1.5rem; font-size: .95rem; }
  .idea-path { line-height: 2; }
  .downloads-heading { display: block; }
  .downloads-heading > p { margin-top: 1rem; }
  .download-grid { grid-template-columns: 1fr; }
  .download-card { min-height: 225px; }
  .download-card p { min-height: 0; }
  .site-footer { flex-wrap: wrap; }
}
@media (max-width: 390px) {
  .brand-word { font-size: 1.38rem; }
  .site-header nav { gap: .55rem; }
  .hero h1 { font-size: 3.7rem; }
  .hero-actions { flex-direction: column; align-items: start; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}







/* Alumbra Labs LLC company identity — October 12, 2026. */
.brand-word, .footer-brand { display: flex; align-items: center; gap: .4em; }
.brand-word > .brand-orb, .footer-brand > .footer-orb { width: 1.35em; height: 1.35em; flex: 0 0 1.35em; margin: 0; background: url("assets/energy-o.png") center / contain no-repeat; }
.brand-company { display: block; margin-top: .25em; font-size: .43em; letter-spacing: .3em; line-height: 1.15; }
.footer-brand .footer-name { display: block; width: auto; height: auto; margin: 0; background: none; }
.brand-sub, .footer-sub { margin-top: .65rem; }
.hero h1 { font-size: clamp(4.3rem, 8.6vw, 8.7rem); }
.hero-company { display: flex; align-items: center; gap: .25em; margin-top: .18em; font-size: .43em; line-height: 1; letter-spacing: .2em; }
.hero-company .hero-orb { width: 1.25em; height: 1.25em; margin: 0; background-size: contain; }
.hero-equation { text-align: left; }
@media (max-width: 700px) {
  .site-header { gap: 1rem; }
  .brand-word { font-size: 1.45rem; }
  .brand-sub { font-size: .4rem; letter-spacing: .28em; }
  .hero h1 { font-size: clamp(3.7rem, 16vw, 6.2rem); }
  .hero-company { font-size: .48em; }
}
@media (max-width: 390px) {
  .site-header { padding-inline: 16px; gap: .65rem; }
  .brand-word { font-size: 1.25rem; }
  .brand-sub { letter-spacing: .18em; }
  .hero h1 { font-size: clamp(3.1rem, 16vw, 3.7rem); }
}