:root {
  color-scheme: dark;
  --bg: #08050f;
  --bg-2: #0d0716;
  --panel: rgba(18, 12, 28, 0.74);
  --panel-strong: rgba(24, 15, 36, 0.92);
  --line: rgba(229, 202, 255, 0.22);
  --line-strong: rgba(229, 202, 255, 0.38);
  --text: #fff8f2;
  --muted: #c8b9c8;
  --dim: #837485;
  --cyan: #b26bff;
  --cyan-2: #f4a7ff;
  --lime: #ffd166;
  --lime-soft: rgba(255, 209, 102, 0.16);
  --shadow: 0 24px 80px rgba(178, 107, 255, 0.2);
  --max: 1180px;
  --radius: 6px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 72% 14%, rgba(178, 107, 255, 0.22), transparent 30rem),
    linear-gradient(180deg, #040208 0%, var(--bg) 34%, #0a0610 100%);
  color: var(--text);
  font-family: var(--font);
  letter-spacing: 0;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image:
    linear-gradient(rgba(178, 107, 255, 0.065) 1px, transparent 1px),
    linear-gradient(90deg, rgba(178, 107, 255, 0.055) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 82%);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.74), transparent 45%, rgba(0, 0, 0, 0.5));
}

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

img {
  display: block;
  max-width: 100%;
}

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(229, 202, 255, 0.13);
  background: rgba(0, 0, 0, 0.76);
  backdrop-filter: blur(16px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 40px, var(--max));
  height: 86px;
  margin: 0 auto;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-size: 1.45rem;
  font-weight: 850;
  line-height: 1;
  white-space: nowrap;
}

.brand span {
  color: var(--cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  color: #fff4fa;
  font-size: 0.89rem;
  font-weight: 650;
}

.nav-links a {
  position: relative;
  padding: 32px 0;
}

.nav-links a::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  height: 2px;
  content: "";
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  transform: scaleX(1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid var(--lime);
  border-radius: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 760;
  line-height: 1;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.btn:hover {
  background: var(--lime);
  color: #130904;
  transform: translateY(-1px);
}

.btn.primary {
  background: var(--lime);
  color: #130904;
  box-shadow: 0 0 28px rgba(255, 209, 102, 0.2);
}

.btn.ghost {
  border-color: var(--cyan);
}

.btn::after {
  margin-left: 16px;
  content: "->";
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.section {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(360px, 1.16fr);
  align-items: center;
  min-height: min(780px, calc(100vh - 86px));
  padding: 74px 0 62px;
  gap: 42px;
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 630px;
  min-width: 0;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 700px;
  font-size: clamp(3.1rem, 6vw, 5.25rem);
  font-weight: 830;
  letter-spacing: 0;
  line-height: 0.98;
}

h1 .dot,
h2 .dot {
  color: var(--cyan);
}

.lead {
  max-width: 560px;
  margin-top: 28px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 34px;
}

.scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 78px;
  color: var(--muted);
  font-size: 0.78rem;
}

.mouse {
  width: 18px;
  height: 32px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
}

.mouse::after {
  display: block;
  width: 4px;
  height: 10px;
  margin: 17px auto 0;
  border-radius: 999px;
  background: var(--lime);
  content: "";
}

.hero-visual {
  position: relative;
  min-height: 500px;
  overflow: hidden;
}

.hero-visual::before {
  position: absolute;
  inset: 12% -22% auto 5%;
  height: 76%;
  content: "";
  background: url("assets/nexa-concept.png") right top / cover no-repeat;
  border: 1px solid rgba(229, 202, 255, 0.18);
  box-shadow: var(--shadow);
  opacity: 0.62;
  filter: saturate(1.15) contrast(1.08);
  clip-path: polygon(12% 0, 100% 0, 100% 82%, 72% 100%, 0 92%, 0 16%);
}

.core {
  position: absolute;
  right: 7%;
  top: 20%;
  width: min(60vw, 440px);
  aspect-ratio: 1;
  border: 1px solid rgba(244, 167, 255, 0.34);
  background:
    linear-gradient(135deg, transparent 0 12%, rgba(178, 107, 255, 0.18) 12% 13%, transparent 13% 50%, rgba(255, 209, 102, 0.15) 50% 51%, transparent 51%),
    radial-gradient(circle, rgba(255, 255, 255, 0.95) 0 2%, rgba(244, 167, 255, 0.58) 3% 10%, transparent 21%),
    rgba(12, 6, 19, 0.68);
  box-shadow:
    inset 0 0 44px rgba(178, 107, 255, 0.24),
    0 0 80px rgba(178, 107, 255, 0.22);
  transform: rotate(45deg);
}

.core::before,
.core::after {
  position: absolute;
  inset: 42px;
  border: 1px solid rgba(244, 167, 255, 0.38);
  content: "";
}

.core::after {
  inset: 100px;
  border-color: rgba(255, 209, 102, 0.5);
  box-shadow: 0 0 36px rgba(255, 209, 102, 0.14);
}

.signal-line {
  position: absolute;
  left: 4%;
  right: -8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.7;
}

.signal-line.one {
  top: 36%;
}

.signal-line.two {
  top: 53%;
  transform: translateX(64px);
}

.signal-line.three {
  top: 69%;
  transform: translateX(-36px);
}

.capabilities {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: -2px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01));
}

.capability {
  min-height: 196px;
  padding: 44px;
  border-right: 1px solid var(--line);
}

.capability:last-child {
  border-right: 0;
}

.icon {
  width: 38px;
  height: 38px;
  margin-bottom: 24px;
  color: var(--cyan);
}

.capability h3,
.feature-card h3,
.timeline-item h3 {
  font-size: 1.1rem;
  line-height: 1.25;
}

.capability p,
.feature-card p,
.timeline-item p,
.mini-copy,
.contact-detail {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.65;
}

.split {
  display: grid;
  grid-template-columns: minmax(260px, 0.78fr) minmax(0, 1.22fr);
  gap: 72px;
  padding: 88px 28px;
}

.section-label {
  margin-bottom: 18px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

h2 {
  max-width: 520px;
  font-size: clamp(2.15rem, 4vw, 3.35rem);
  font-weight: 820;
  letter-spacing: 0;
  line-height: 1.05;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  min-height: 214px;
  padding: 30px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015));
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.feature-card:hover {
  border-color: var(--cyan);
  background: linear-gradient(145deg, rgba(178, 107, 255, 0.13), rgba(255, 255, 255, 0.02));
  transform: translateY(-4px);
}

.card-top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  margin-bottom: 28px;
}

.index {
  color: var(--cyan);
  font-size: 1.08rem;
  font-weight: 820;
}

.timeline {
  position: relative;
  display: grid;
  gap: 34px;
  padding-left: 72px;
}

.timeline::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 23px;
  width: 1px;
  content: "";
  background: linear-gradient(var(--cyan), rgba(244, 248, 251, 0.4), var(--line));
}

.timeline-item {
  position: relative;
  color: var(--dim);
}

.timeline-item::before {
  position: absolute;
  left: -62px;
  top: 4px;
  width: 20px;
  height: 20px;
  border: 3px solid currentColor;
  border-radius: 50%;
  background: #08050f;
  content: "";
}

.timeline-item.active {
  color: var(--text);
}

.timeline-item.live {
  color: var(--lime);
}

.timeline-date {
  margin-bottom: 8px;
  color: currentColor;
  font-size: 0.8rem;
  font-weight: 850;
}

.contact-panel {
  display: grid;
  grid-template-columns: 0.8fr 0.68fr 1fr;
  gap: 48px;
  padding: 74px 48px;
  border: 1px solid var(--line-strong);
  background: rgba(10, 5, 16, 0.64);
}

.contact-info {
  display: grid;
  gap: 26px;
  padding-left: 34px;
  border-left: 1px solid var(--line);
}

.contact-detail {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 18px;
  align-items: start;
  margin-top: 0;
}

.contact-detail svg {
  color: var(--cyan);
}

.form {
  display: grid;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

input,
textarea {
  width: 100%;
  min-height: 54px;
  border: 1px solid rgba(229, 202, 255, 0.18);
  border-radius: 0;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.025));
  color: var(--text);
  outline: 0;
  padding: 0 18px;
  font-size: 0.9rem;
}

textarea {
  min-height: 128px;
  resize: vertical;
  padding-top: 18px;
}

input:focus,
textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(178, 107, 255, 0.12);
}

.form-note {
  min-height: 22px;
  color: var(--lime);
  font-size: 0.82rem;
}

.site-footer {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
  padding: 38px 0 46px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 32px;
  align-items: center;
}

.circuit {
  height: 38px;
  background:
    linear-gradient(90deg, transparent 0 8%, rgba(178, 107, 255, 0.8) 8% 9%, transparent 9% 46%, rgba(178, 107, 255, 0.45) 46% 47%, transparent 47%),
    linear-gradient(135deg, transparent 0 43%, rgba(178, 107, 255, 0.45) 43% 44%, transparent 44%),
    linear-gradient(0deg, transparent 0 49%, rgba(178, 107, 255, 0.38) 49% 52%, transparent 52%);
  opacity: 0.8;
}

.footer-links {
  display: flex;
  justify-content: flex-end;
  gap: 26px;
  color: var(--text);
  font-size: 0.84rem;
}

.copyright {
  margin-top: 16px;
  color: var(--dim);
  font-size: 0.76rem;
}

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.7fr);
  align-items: end;
  gap: 54px;
  padding: 110px 0 72px;
}

.page-visual {
  min-height: 300px;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(178, 107, 255, 0.22), rgba(255, 209, 102, 0.08)),
    url("assets/nexa-concept.png") center / cover no-repeat;
  box-shadow: var(--shadow);
  clip-path: polygon(0 0, 100% 0, 100% 84%, 82% 100%, 0 100%);
}

.content-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 62px 0 88px;
}

.content-card,
.stat-card {
  border: 1px solid var(--line-strong);
  background: var(--panel);
  padding: 32px;
}

.content-card p,
.stat-card p {
  color: var(--muted);
  line-height: 1.68;
}

.stat-card strong {
  display: block;
  margin-bottom: 12px;
  color: var(--lime);
  font-size: 2.2rem;
  line-height: 1;
}

.wide-band {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 52px;
  padding: 74px 0;
}

.rail-list {
  display: grid;
  gap: 16px;
}

.rail-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 22px;
  padding: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.rail-item span {
  color: var(--cyan);
  font-weight: 850;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 64px 0 88px;
}

.team-member {
  min-height: 250px;
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(178, 107, 255, 0.14), transparent 48%),
    var(--panel);
  padding: 28px;
}

.avatar {
  width: 74px;
  height: 74px;
  margin-bottom: 34px;
  border: 1px solid var(--cyan);
  background:
    linear-gradient(135deg, transparent 40%, var(--lime) 40% 43%, transparent 43%),
    radial-gradient(circle at 50% 50%, rgba(178, 107, 255, 0.48), transparent 56%);
}

@media (max-width: 960px) {
  .menu-toggle {
    display: block;
  }

  .nav {
    height: 76px;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-links.open {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 76px;
    display: grid;
    gap: 0;
    border: 1px solid var(--line-strong);
    background: rgba(0, 0, 0, 0.95);
  }

  .nav-links.open a {
    padding: 18px;
    border-bottom: 1px solid var(--line);
  }

  .nav-links.open a::after {
    display: none;
  }

  .hero,
  .page-hero,
  .split,
  .contact-panel,
  .wide-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 62px;
  }

  .hero-visual {
    min-height: 420px;
  }

  .capabilities,
  .features-grid,
  .content-band,
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-info {
    padding-left: 0;
    border-left: 0;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .nav,
  .section,
  .site-footer {
    width: calc(100vw - 28px);
    max-width: var(--max);
  }

  .brand {
    font-size: 1.18rem;
  }

  h1 {
    max-width: calc(100vw - 28px);
    overflow-wrap: anywhere;
    font-size: clamp(2.4rem, 11.5vw, 3.1rem);
  }

  .lead {
    max-width: calc(100vw - 28px);
    font-size: 1rem;
  }

  .hero-actions,
  .form-row {
    grid-template-columns: 1fr;
    display: grid;
  }

  .btn {
    width: 100%;
  }

  .hero-visual {
    min-height: 300px;
  }

  .core {
    right: 3%;
    top: 18%;
    width: min(78vw, 340px);
  }

  .capabilities,
  .features-grid,
  .content-band,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .capability {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .split,
  .contact-panel {
    padding: 58px 22px;
    gap: 40px;
  }

  .timeline {
    padding-left: 52px;
  }

  .timeline-item::before {
    left: -52px;
  }

  .page-hero {
    padding-top: 74px;
  }
}