/* Core fallback styles for cached, older, or partially compatible browsers. */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background: #ffffff;
  color: #0f172a;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }

.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 200; background: #0891b2; }
.cursor-glow { display: none; }
.logo { height: 46px; width: auto; display: block; object-fit: contain; }
.logo__word { font-family: Inter, Arial, sans-serif; font-weight: 800; font-size: 36px; letter-spacing: -1.5px; fill: currentColor; }
.logo__accent { fill: #06b6d4; }
.brand { display: inline-flex; align-items: center; color: #231f20; }
.brand--footer { color: #ffffff; }
.footer .brand--footer { display: inline-flex; width: auto; }
.brand--footer .logo { height: 72px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 999px; border: 1px solid transparent;
  background: #0891b2; color: #ffffff; font-weight: 700; font-size: 14px;
  white-space: nowrap; cursor: pointer;
}
.btn--sm { padding: 8px 16px; font-size: 13px; }
.btn--lg { padding: 14px 26px; font-size: 15px; }
.btn--block { width: 100%; }
.btn--ghost { background: #ffffff; color: #0f172a; border-color: rgba(15, 23, 42, 0.16); box-shadow: 0 4px 16px rgba(8, 145, 178, 0.06); }

.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(255, 255, 255, 0.92); border-bottom-color: rgba(15, 23, 42, 0.09); box-shadow: 0 4px 16px rgba(8, 145, 178, 0.06); }
.nav__inner { max-width: 1120px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.nav__links { display: flex; gap: 26px; align-items: center; }
.nav__item { position: relative; }
.nav__top { display: inline-flex; align-items: center; gap: 5px; color: #475569; font-size: 14px; font-weight: 600; padding: 4px 0; }
.nav__top.active, .nav__item:hover .nav__top { color: #0891b2; }
.nav__caret { font-size: 9px; opacity: 0.7; }
.nav__sub {
  position: absolute; top: 100%; left: 50%; min-width: 240px; padding: 8px; z-index: 60;
  transform: translateX(-50%) translateY(10px); background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.09); border-radius: 16px; box-shadow: 0 14px 40px rgba(8, 47, 73, 0.08);
  display: flex; flex-direction: column; gap: 2px; opacity: 0; visibility: hidden; pointer-events: none;
}
.nav__item:hover .nav__sub { opacity: 1; visibility: visible; pointer-events: auto; }
.nav__sub a { display: block; padding: 9px 12px; border-radius: 10px; color: #475569; font-size: 14px; font-weight: 500; white-space: nowrap; }
.nav__sub a:hover, .nav__sub a.active { background: #ecfeff; color: #0891b2; }
.nav__actions { display: flex; align-items: center; gap: 14px; }
.nav__burger { display: none; background: none; border: 0; flex-direction: column; gap: 5px; cursor: pointer; }
.nav__burger span { width: 22px; height: 2px; background: #0f172a; border-radius: 2px; }

.hero { position: relative; padding: 130px 0 60px; overflow: hidden; text-align: center; background: #eefbff; }
.hero__bg {
  position: absolute; inset: -10%; z-index: 0; pointer-events: none;
  background: url("assets/hero-bg.png") center center / cover no-repeat; opacity: 0.85;
}
.hero__grid, .hero__net, .hero__glow { position: absolute; inset: 0; pointer-events: none; }
.hero__grid { z-index: 0; background-image: linear-gradient(rgba(8, 145, 178, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(8, 145, 178, 0.07) 1px, transparent 1px); background-size: 42px 42px; }
.hero__net { z-index: 1; }
.hero__inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr 0.95fr; align-items: center; gap: 36px; text-align: left; }
.hero__content { display: flex; flex-direction: column; align-items: flex-start; }
.hero__visual { display: flex; justify-content: center; }
.cube-stage { position: relative; width: 100%; max-width: 460px; aspect-ratio: 1 / 1; }
#cubeCanvas { position: relative; display: block; width: 100%; height: 100%; }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; margin-bottom: 24px; background: #ecfeff; border: 1px solid rgba(34, 211, 238, 0.4); color: #0891b2; font-weight: 700; font-size: 13px; }
.pill__dot { width: 7px; height: 7px; border-radius: 50%; background: #06b6d4; }
.hero__title { font-size: 54px; line-height: 1.08; font-weight: 800; letter-spacing: 0; }
.gradient-text { color: #06b6d4; }
.hero__sub { max-width: 540px; margin: 22px 0 0; font-size: 18px; color: #475569; }
.hero__cta { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; justify-content: flex-start; }
.hero__chips { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.hero__chips li { font-size: 13px; font-weight: 700; color: #475569; padding: 7px 14px; border-radius: 999px; background: #ffffff; border: 1px solid rgba(15, 23, 42, 0.09); box-shadow: 0 4px 16px rgba(8, 145, 178, 0.06); }

.marquee-wrap { padding: 10px 0 30px; background: #ffffff; overflow: hidden; }
.marquee__track { display: flex; gap: 28px; width: max-content; }
.marquee__track span { font-size: 15px; font-weight: 700; color: #94a3b8; white-space: nowrap; }

.section { padding: 72px 0; position: relative; }
.section--soft, .section--hscroll { background: #f4f8fb; }
.section__head { text-align: center; margin-bottom: 44px; }
.eyebrow { display: inline-block; font-size: 12.5px; font-weight: 800; color: #0891b2; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 12px; }
.section__title { font-size: 40px; font-weight: 800; letter-spacing: 0; line-height: 1.12; }
.section__title .muted, .muted { color: #94a3b8; }
.section__lead { color: #475569; font-size: 17px; max-width: 480px; margin-top: 16px; }
.learn-more { display: inline-flex; align-items: center; gap: 8px; margin-top: 24px; font-weight: 700; font-size: 15px; color: #0891b2; }
.section__cta { text-align: center; margin-top: 40px; }

.hscroll { position: relative; height: 320vh; }
.hscroll__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; }
.hscroll__head { position: absolute; top: 0; left: 0; right: 0; z-index: 5; padding: 5vh 6vw 0; }
.hscroll__track { position: absolute; inset: 0; z-index: 2; display: flex; flex-wrap: nowrap; width: max-content; }
.hpanel { position: relative; width: 100vw; height: 100vh; display: grid; place-items: center; padding: 19vh 6vw 17vh; overflow: hidden; }
.hpanel__bgnum { position: absolute; left: 3vw; top: 50%; transform: translateY(-50%); font-weight: 800; font-size: 50vh; line-height: 1; color: rgba(8, 145, 178, 0.07); }
.hpanel__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 6vw; max-width: 1080px; width: 100%; align-items: center; opacity: 1; transform: none; }
.hpanel__visual { position: relative; width: 400px; max-width: 38vw; aspect-ratio: 1; display: grid; place-items: center; margin: 0 auto; }
.hpanel__kicker { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 0.14em; color: #0891b2; text-transform: uppercase; }
.hpanel__text h3 { font-size: 40px; font-weight: 800; letter-spacing: 0; margin: 14px 0; }
.hpanel__text p { color: #475569; font-size: 17px; max-width: 520px; }
.hpanel__list { list-style: none; margin-top: 20px; display: grid; gap: 10px; }
.hpanel__list li { position: relative; padding-left: 28px; color: #475569; font-size: 15px; }
.hpanel__list li:before { content: "*"; position: absolute; left: 8px; top: 0; color: #0891b2; font-weight: 800; }
.hscroll__progress { position: absolute; bottom: 5vh; left: 6vw; right: 6vw; z-index: 5; }
.hscroll__labels { display: flex; gap: 28px; flex-wrap: wrap; margin-bottom: 16px; }
.hscroll__label { background: none; border: 0; cursor: pointer; font-family: inherit; font-size: 14px; font-weight: 700; color: #94a3b8; padding: 0; display: inline-flex; align-items: center; gap: 8px; }
.hscroll__label.is-active { color: #0f172a; }
.hscroll__rail { display: block; height: 3px; border-radius: 999px; background: rgba(15, 23, 42, 0.09); overflow: hidden; }
.hscroll__rail i { display: block; height: 100%; width: 0; background: #0891b2; }

.grid { display: grid; gap: 18px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.card, .mini { background: #ffffff; border: 1px solid rgba(15, 23, 42, 0.09); box-shadow: 0 4px 16px rgba(8, 145, 178, 0.06); }
.card { border-radius: 22px; padding: 28px; overflow: hidden; }
.card--accent { background: #ecfeff; }
.card__icon { width: 50px; height: 50px; display: grid; place-items: center; font-size: 22px; border-radius: 13px; margin-bottom: 16px; background: #ecfeff; border: 1px solid rgba(34, 211, 238, 0.3); }
.card h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; }
.card p, .mini p { color: #475569; font-size: 14.5px; }
.mini { padding: 24px; border-radius: 14px; }
.mini__num { display: inline-block; font-size: 13px; font-weight: 800; color: #0891b2; background: #ecfeff; padding: 3px 9px; border-radius: 7px; }
.mini h3 { font-size: 16px; font-weight: 800; margin: 14px 0 6px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about__cols { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; color: #475569; font-size: 17px; }
.checklist { list-style: none; margin-top: 22px; display: grid; gap: 11px; }
.checklist li { color: #475569; font-size: 15px; }
.checklist li:before { content: "* "; color: #0891b2; font-weight: 800; }
.env-card { background: #ffffff; border: 1px solid rgba(15, 23, 42, 0.09); border-radius: 22px; box-shadow: 0 30px 80px rgba(8, 47, 73, 0.12); overflow: hidden; }
.env-card__bar { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid rgba(15, 23, 42, 0.09); background: #ecfeff; }
.env-card__title { font-size: 13px; font-weight: 800; color: #0891b2; }
.env-card__body { padding: 18px; display: grid; gap: 10px; }
.env-layer, .env-flow span { background: #f4f8fb; border: 1px solid rgba(15, 23, 42, 0.09); border-radius: 12px; padding: 12px; }

.section--dark { background: #0b1220; color: #ffffff; text-align: center; overflow: hidden; }
.dark__inner { position: relative; z-index: 1; max-width: 880px; text-align: center; }
.dark__title { font-size: 42px; font-weight: 800; line-height: 1.14; }
.dark__lead { max-width: 720px; margin: 16px auto 0; color: #dbeafe; font-size: 17px; }

.contact { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 44px; align-items: start; }
.contact__details { display: grid; gap: 10px; margin-top: 24px; padding: 18px; border-radius: 14px; background: #ffffff; border: 1px solid rgba(15, 23, 42, 0.09); box-shadow: 0 4px 16px rgba(8, 145, 178, 0.06); }
.contact__details p { margin: 0; color: #475569; font-size: 14px; }
.contact__details strong { display: block; color: #0f172a; font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 2px; }
.contact__details a { color: #0891b2; font-weight: 700; }
.contact__form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; background: #ffffff; border: 1px solid rgba(15, 23, 42, 0.09); border-radius: 22px; padding: 26px; box-shadow: 0 14px 40px rgba(8, 47, 73, 0.08); }
.field { display: grid; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 800; color: #475569; }
.field input, .field textarea { width: 100%; border: 1px solid rgba(15, 23, 42, 0.16); border-radius: 12px; padding: 11px 12px; font: inherit; color: #0f172a; background: #ffffff; }

.footer { background: #0b1220; color: #cbd5e1; padding-top: 64px; }
.footer__inner { display: grid; grid-template-columns: 0.9fr 1.4fr; gap: 48px; }
.footer__brand p { margin-top: 14px; max-width: 300px; }
.footer__legal-name { color: #ffffff; font-weight: 800; }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.footer h4 { color: #ffffff; font-size: 13px; margin-bottom: 14px; }
.footer a, .footer p { display: block; color: #cbd5e1; font-size: 14px; margin-bottom: 9px; }
.footer__bottom { display: flex; justify-content: space-between; gap: 16px; padding: 26px 20px; margin-top: 44px; border-top: 1px solid rgba(255, 255, 255, 0.12); color: #94a3b8; font-size: 13px; }

.aiast { position: fixed; right: 24px; bottom: 24px; z-index: 120; }
.aiast__orb { width: 66px; height: 66px; border-radius: 50%; border: 0; cursor: pointer; background: #67d5e8; color: #ffffff; box-shadow: 0 12px 30px rgba(8, 145, 178, 0.45); }
.aiast__panel { position: absolute; right: 0; bottom: 84px; width: 340px; max-width: calc(100vw - 28px); background: #ffffff; border: 1px solid rgba(34, 211, 238, 0.4); border-radius: 20px; overflow: hidden; box-shadow: 0 30px 70px rgba(8, 47, 73, 0.28); opacity: 0; visibility: hidden; }
.aiast.open .aiast__panel { opacity: 1; visibility: visible; }
.aiast__header { display: flex; align-items: center; gap: 12px; padding: 15px 18px; background: #0b1220; color: #ffffff; }
.aiast__close { margin-left: auto; background: none; border: 0; color: #ffffff; font-size: 22px; cursor: pointer; }
.aiast__body { padding: 16px; max-height: 300px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; }
.aiast__msg { max-width: 82%; padding: 10px 13px; border-radius: 14px; font-size: 14px; line-height: 1.45; white-space: pre-line; }
.aiast__msg--bot { align-self: flex-start; background: #ecfeff; color: #0f172a; }
.aiast__msg--user { align-self: flex-end; background: #0891b2; color: #ffffff; }
.aiast__form { display: flex; gap: 8px; padding: 12px; border-top: 1px solid rgba(15, 23, 42, 0.09); }
.aiast__input { flex: 1; border: 1px solid rgba(15, 23, 42, 0.16); border-radius: 999px; padding: 9px 14px; font: inherit; }
.aiast__send { width: 38px; height: 38px; border-radius: 50%; border: 0; background: #0891b2; color: #ffffff; }
.aiast__note { padding: 0 14px 12px; font-size: 11px; color: #94a3b8; text-align: center; }

.reveal { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .hero__title { font-size: 44px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .contact { grid-template-columns: 1fr; }
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__content { align-items: center; order: 1; }
  .hero__visual { order: 0; margin-bottom: 8px; }
  .hero__sub { margin-left: auto; margin-right: auto; }
  .hero__cta, .hero__chips { justify-content: center; }
}
@media (max-width: 860px) {
  .grid--3 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .about__cols { grid-template-columns: 1fr; gap: 16px; text-align: center; }
  .footer__inner { grid-template-columns: 1fr; }
  .hscroll { height: auto; }
  .hscroll__sticky { position: static; height: auto; overflow: visible; }
  .hscroll__head { position: static; padding: 0 0 10px; }
  .hscroll__track { position: static; transform: none; flex-direction: column; width: 100%; gap: 16px; }
  .hpanel { width: 100%; height: auto; padding: 0; overflow: visible; }
  .hpanel__bgnum { display: none; }
  .hpanel__inner { grid-template-columns: 1fr; gap: 22px; background: #ffffff; border: 1px solid rgba(15, 23, 42, 0.09); border-radius: 22px; box-shadow: 0 4px 16px rgba(8, 145, 178, 0.06); padding: 26px; }
  .hpanel__visual { width: 168px; max-width: 168px; }
  .hscroll__progress { position: static; margin-top: 18px; }
}
@media (max-width: 680px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .nav__links.open { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; position: absolute; top: 60px; left: 14px; right: 14px; background: #ffffff; border: 1px solid rgba(15, 23, 42, 0.09); border-radius: 14px; padding: 14px; box-shadow: 0 14px 40px rgba(8, 47, 73, 0.08); }
  .nav__links.open .nav__item { width: 100%; }
  .nav__links.open .nav__top { width: 100%; color: #0f172a; padding: 10px 4px; }
  .nav__links.open .nav__sub { position: static; transform: none; opacity: 1; visibility: visible; pointer-events: auto; min-width: 0; padding: 0 0 8px 14px; background: transparent; border: 0; box-shadow: none; }
  .nav__caret { display: none; }
  .section { padding: 56px 0; }
  .hero { padding: 110px 0 40px; }
  .hero__title { font-size: 30px; }
  .hero__sub { font-size: 15px; }
  .cube-stage { max-width: 240px; }
  .grid--4 { grid-template-columns: 1fr; }
  .contact__form { grid-template-columns: 1fr; padding: 20px; }
  .footer__cols { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .aiast { right: 14px; bottom: 14px; }
  .aiast__panel { width: 320px; }
}