:root {
  --bg: #07111f;
  --bg-soft: #0b1728;
  --panel: rgba(16, 31, 51, 0.74);
  --panel-strong: #0f2035;
  --text: #f3f7fb;
  --muted: #9db0c5;
  --line: rgba(255, 255, 255, 0.11);
  --accent: #61d3ff;
  --accent-2: #8bf0d4;
  --white: #ffffff;
  --max: 1200px;
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 80% 8%, rgba(97, 211, 255, 0.13), transparent 28%),
    radial-gradient(circle at 8% 40%, rgba(139, 240, 212, 0.06), transparent 24%),
    var(--bg);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }

.site-shell { overflow: hidden; }
.site-header {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 20;
}

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-text {
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.15em;
}
.brand-mark {
  width: 31px;
  height: 31px;
  display: inline-grid;
  place-items: center;
  position: relative;
}
.brand-mark__ring {
  width: 27px;
  height: 27px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  border-right-color: transparent;
  transform: rotate(-22deg);
}
.brand-mark__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  position: absolute;
  right: 0;
  top: 5px;
  box-shadow: 0 0 18px rgba(139, 240, 212, 0.85);
}

.site-nav { display: flex; gap: 30px; align-items: center; }
.site-nav a {
  color: #c7d3df;
  font-size: 14px;
  transition: color .2s ease;
}
.site-nav a:hover { color: var(--white); }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.nav-toggle span { width: 18px; height: 1px; background: var(--text); display: block; }

.section-grid {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 72px;
  align-items: center;
}

.hero { min-height: 760px; padding: 92px 0 86px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  margin-bottom: 20px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

h1, h2, h3 { font-family: "Manrope", sans-serif; margin-top: 0; }
h1 {
  font-size: clamp(48px, 6vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.045em;
  margin-bottom: 28px;
}
h1 span { color: #b6c7d8; }
h2 {
  font-size: clamp(36px, 4.5vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
}
h3 { font-size: 19px; letter-spacing: -0.01em; margin-bottom: 8px; }

.hero-lede {
  max-width: 670px;
  color: #afc0d1;
  font-size: 18px;
  line-height: 1.75;
  margin: 0 0 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #04111d; }
.button-secondary { border: 1px solid var(--line); background: rgba(255,255,255,.03); }
.button-secondary:hover { border-color: rgba(255,255,255,.28); }

.hero-proof {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.hero-proof div { display: flex; flex-direction: column; gap: 5px; }
.hero-proof strong { font-size: 14px; }
.hero-proof span { font-size: 12px; color: var(--muted); }

.hero-visual { min-height: 520px; display: grid; place-items: center; position: relative; }
.orb { position: absolute; border-radius: 50%; filter: blur(1px); }
.orb-a {
  width: 330px; height: 330px;
  background: radial-gradient(circle at 45% 40%, rgba(97,211,255,.22), rgba(97,211,255,.02) 60%, transparent 72%);
  top: 40px; right: 8px;
}
.orb-b {
  width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(139,240,212,.15), transparent 68%);
  bottom: 10px; left: 25px;
}
.energy-card {
  width: min(100%, 510px);
  min-height: 390px;
  padding: 22px;
  background: linear-gradient(160deg, rgba(19,38,61,.9), rgba(8,19,34,.88));
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 30px;
  box-shadow: 0 35px 100px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.06);
  position: relative;
  backdrop-filter: blur(10px);
}
.energy-card__top, .energy-card__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.energy-card__top { color: #afc4d8; font-size: 11px; letter-spacing: .12em; }
.status { display: inline-flex; align-items: center; gap: 8px; letter-spacing: 0; color: #b7c5d2; }
.status i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); }

.cell-graphic {
  height: 250px;
  margin: 24px 0;
  border-radius: 22px;
  background:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    rgba(5,14,26,.62);
  background-size: 28px 28px;
  border: 1px solid rgba(255,255,255,.06);
  position: relative;
  overflow: hidden;
}
.electrode { position: absolute; top: 42px; bottom: 42px; width: 92px; border-radius: 16px; }
.electrode-left { left: 34px; background: linear-gradient(180deg, rgba(97,211,255,.3), rgba(97,211,255,.08)); border: 1px solid rgba(97,211,255,.35); }
.electrode-right { right: 34px; background: linear-gradient(180deg, rgba(139,240,212,.24), rgba(139,240,212,.07)); border: 1px solid rgba(139,240,212,.32); }
.separator {
  position: absolute; top: 34px; bottom: 34px; left: 50%; width: 18px; margin-left: -9px;
  background: repeating-linear-gradient(180deg, rgba(255,255,255,.18), rgba(255,255,255,.18) 5px, rgba(255,255,255,.04) 5px, rgba(255,255,255,.04) 10px);
  border-radius: 12px;
}
.ion {
  position: absolute;
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(97,211,255,.12);
  border: 1px solid rgba(97,211,255,.42);
  color: #c9f3ff;
  font-weight: 700;
  font-size: 10px;
  box-shadow: 0 0 25px rgba(97,211,255,.08);
  animation: float 4.2s ease-in-out infinite;
}
.ion-1 { left: 138px; top: 55px; }
.ion-2 { left: 195px; top: 100px; animation-delay: -.8s; }
.ion-3 { left: 250px; top: 150px; animation-delay: -1.5s; }
.ion-4 { left: 316px; top: 78px; animation-delay: -2.2s; }
.flow {
  position: absolute; height: 2px; width: 84px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .55;
  animation: pulse 2.6s linear infinite;
}
.flow-1 { left: 125px; top: 77px; }
.flow-2 { left: 220px; top: 122px; animation-delay: -.8s; }
.flow-3 { left: 290px; top: 168px; animation-delay: -1.5s; }
.energy-card__bottom { color: #8fa4b8; font-size: 10px; text-transform: uppercase; letter-spacing: .09em; }
.energy-card__bottom div:not(.energy-line) { display: flex; flex-direction: column; }
.energy-card__bottom strong { color: #dae4ee; text-transform: none; letter-spacing: 0; font-size: 12px; margin-top: 2px; }
.energy-line { flex: 1; height: 1px; background: linear-gradient(90deg, rgba(97,211,255,.2), rgba(139,240,212,.5), rgba(139,240,212,.1)); }

.trust-strip {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: 18px;
  color: #8296ab;
  font-size: 11px;
  letter-spacing: .16em;
  font-weight: 700;
}
.trust-strip i { width: 4px; height: 4px; border-radius: 50%; background: rgba(255,255,255,.24); }

.section { padding: 130px 0; }
.section-heading p, .about-copy p, .performance-copy p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}
.section-heading.compact {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto 46px;
  max-width: 780px;
  text-align: center;
}
.section-heading.compact .eyebrow { justify-content: center; }

.tech-stack { display: grid; gap: 14px; }
.tech-card {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.025);
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.tech-card:hover { transform: translateY(-3px); border-color: rgba(97,211,255,.25); background: rgba(97,211,255,.035); }
.tech-number { color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: .1em; }
.tech-card p { margin: 0; color: #90a5ba; font-size: 14px; line-height: 1.7; }

.performance-section { padding-top: 20px; }
.performance-panel {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(17,34,55,.84), rgba(8,18,32,.88));
  padding: 64px;
}
.performance-copy { max-width: 760px; }
.transport-map {
  margin-top: 54px;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 16px;
  align-items: center;
}
.transport-node {
  min-height: 122px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 18px;
  background: rgba(255,255,255,.025);
}
.transport-node span { font-weight: 700; font-size: 14px; }
.transport-node small { margin-top: 5px; color: var(--muted); font-size: 11px; }
.transport-arrow { color: var(--accent); opacity: .7; }

.application-grid {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.application-card {
  min-height: 270px;
  padding: 28px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.025);
}
.application-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  margin-bottom: 42px;
  background: linear-gradient(145deg, rgba(97,211,255,.16), rgba(139,240,212,.08));
  border: 1px solid rgba(97,211,255,.2);
  color: var(--accent);
  font-weight: 800;
}
.application-card p { color: var(--muted); font-size: 14px; margin-bottom: 0; }

.about-section { align-items: start; }
.about-copy { padding-top: 54px; }
.location-pill {
  display: inline-flex;
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 15px;
  color: #c1cfdd;
  font-size: 12px;
}

.contact-section { padding-top: 30px; }
.contact-panel {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 40px;
  padding: 70px;
  border-radius: 30px;
  color: #07111f;
  background: linear-gradient(120deg, #d9f6ff, #a8f3de);
}
.contact-panel .eyebrow { color: #0d6579; }
.contact-panel h2 { max-width: 760px; margin-bottom: 16px; }
.contact-panel p { margin-bottom: 0; color: #33596a; }
.contact-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 14px; }
.button-light { background: #07111f; color: #fff; white-space: nowrap; }
.contact-actions span { font-size: 12px; color: #315468; }

.site-footer {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 52px 0 34px;
  color: #8194a8;
  font-size: 12px;
}
.footer-brand { margin-bottom: 20px; color: var(--text); }
.footer-meta {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
}
.footer-meta a { color: #b8c6d4; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}
@keyframes pulse {
  0% { opacity: .1; transform: translateX(-8px); }
  50% { opacity: .85; }
  100% { opacity: .1; transform: translateX(12px); }
}

@media (max-width: 980px) {
  .section-grid { grid-template-columns: 1fr; gap: 50px; }
  .hero { padding-top: 64px; min-height: auto; }
  .hero-visual { min-height: 430px; }
  .application-grid { grid-template-columns: repeat(2, 1fr); }
  .transport-map { grid-template-columns: 1fr 1fr; }
  .transport-arrow { display: none; }
  .contact-panel { grid-template-columns: 1fr; align-items: start; }
  .contact-actions { align-items: flex-start; }
}

@media (max-width: 760px) {
  .site-header { min-height: 74px; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 67px;
    left: 0;
    right: 0;
    padding: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: rgba(7,17,31,.97);
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0,0,0,.28);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px; }
  h1 { font-size: 48px; }
  h2 { font-size: 38px; }
  .hero-proof { grid-template-columns: 1fr; gap: 18px; }
  .trust-strip { overflow-x: auto; justify-content: flex-start; padding: 0 20px; }
  .section { padding: 95px 0; }
  .performance-panel, .contact-panel { padding: 38px 26px; }
  .application-grid { grid-template-columns: 1fr; }
  .application-card { min-height: auto; }
  .application-icon { margin-bottom: 28px; }
  .transport-map { grid-template-columns: 1fr; }
  .footer-meta { flex-direction: column; }
}

@media (max-width: 520px) {
  .site-header, .section-grid, .trust-strip, .section-heading.compact, .application-grid, .performance-panel, .contact-panel, .site-footer {
    width: min(calc(100% - 28px), var(--max));
  }
  .brand-text { font-size: 12px; letter-spacing: .12em; }
  .brand-mark { width: 28px; height: 28px; }
  .brand-mark__ring { width: 24px; height: 24px; }
  h1 { font-size: 41px; }
  h2 { font-size: 34px; }
  .hero-lede { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .hero-visual { min-height: 365px; }
  .energy-card { padding: 16px; min-height: 330px; border-radius: 22px; }
  .cell-graphic { height: 215px; }
  .electrode { width: 70px; }
  .ion-1 { left: 105px; }
  .ion-2 { left: 150px; }
  .ion-3 { left: 195px; }
  .ion-4 { left: 240px; }
  .flow { width: 65px; }
  .flow-1 { left: 95px; }
  .flow-2 { left: 170px; }
  .flow-3 { left: 220px; }
}