:root {
  --bg: #071011;
  --bg-2: #0c1719;
  --panel: rgba(242, 250, 247, 0.07);
  --panel-strong: rgba(242, 250, 247, 0.12);
  --text: #eef8f4;
  --muted: #a7bbb4;
  --soft: #d5e6df;
  --line: rgba(220, 243, 233, 0.14);
  --green: #39e6a7;
  --teal: #3ec7d5;
  --yellow: #f4c95d;
  --coral: #ff826c;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 6%, rgba(57, 230, 167, 0.12), transparent 34rem),
    radial-gradient(circle at 86% 28%, rgba(62, 199, 213, 0.1), transparent 30rem),
    linear-gradient(180deg, #071011 0%, #0a1315 48%, #071011 100%);
  color: var(--text);
  font-family: Inter, "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

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

main {
  overflow: hidden;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 32px));
  margin: 16px auto 0;
  padding: 10px 12px 10px 16px;
  border: 1px solid rgba(231, 250, 242, 0.13);
  border-radius: 8px;
  background: rgba(7, 16, 17, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.22);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  position: relative;
  display: inline-block;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(57, 230, 167, 0.96), rgba(62, 199, 213, 0.94));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.16), 0 12px 26px rgba(57, 230, 167, 0.18);
}

.brand-mark::before,
.brand-mark::after,
.brand-mark span {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  border-radius: 999px;
  background: #061011;
}

.brand-mark::before {
  top: 10px;
}

.brand-mark span {
  top: 16px;
}

.brand-mark::after {
  top: 22px;
  right: 14px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  transition: color 180ms ease, background 180ms ease;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.site-header.is-scrolled {
  background: rgba(7, 16, 17, 0.9);
  border-color: rgba(231, 250, 242, 0.18);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
}

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

.section,
.section-band {
  padding: 112px max(24px, calc((100vw - 1180px) / 2));
}

section[id] {
  scroll-margin-top: 96px;
}

.section-band {
  min-height: 100vh;
  display: grid;
  align-items: center;
}

.hero {
  padding-top: 132px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.8fr);
  align-items: center;
  gap: 58px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(42px, 6.8vw, 82px);
  line-height: 1.06;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h2 {
  max-width: 850px;
  margin-bottom: 18px;
  font-size: clamp(30px, 4.1vw, 52px);
  line-height: 1.16;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.32;
}

.hero-lead,
.section-heading p,
.platform-item p,
.cta-inner p {
  color: var(--soft);
  font-size: 18px;
}

.hero-lead {
  max-width: 720px;
  margin-bottom: 30px;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: linear-gradient(135deg, var(--green), var(--teal));
  color: #061011;
}

.button.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

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

.hero-stats div,
.feature-card,
.capability,
.pricing-card,
.platform-item,
.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset;
}

.hero-stats div {
  padding: 16px;
}

.hero-stats dt {
  color: var(--green);
  font-size: 24px;
  font-weight: 900;
}

.hero-stats dd {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.48;
}

.hero-visual {
  min-height: 540px;
}

.network-panel {
  position: relative;
  min-height: 540px;
  overflow: hidden;
  border: 1px solid rgba(231, 250, 242, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(160deg, rgba(57, 230, 167, 0.16), rgba(62, 199, 213, 0.06) 45%, rgba(255, 255, 255, 0.035));
  background-size: 44px 44px, 44px 44px, auto;
  box-shadow: var(--shadow);
}

.panel-top {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.panel-top strong {
  margin-left: auto;
  color: var(--green);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 24px var(--green);
}

.server-map {
  position: relative;
  height: 350px;
}

.core-node {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 3;
  display: grid;
  width: 132px;
  height: 132px;
  place-items: center;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(57, 230, 167, 0.6);
  border-radius: 50%;
  background: rgba(5, 16, 15, 0.84);
  box-shadow: 0 0 70px rgba(57, 230, 167, 0.22);
}

.core-node span {
  color: var(--green);
  font-size: 34px;
  font-weight: 900;
}

.core-node small {
  margin-top: -32px;
  color: var(--muted);
}

.orbit {
  position: absolute;
  z-index: 2;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(9, 24, 25, 0.88);
  color: var(--soft);
  font-size: 13px;
  font-weight: 800;
}

.node-a {
  top: 64px;
  left: 50px;
}

.node-b {
  top: 70px;
  right: 58px;
}

.node-c {
  right: 72px;
  bottom: 58px;
}

.node-d {
  left: 48px;
  bottom: 62px;
}

.route {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 320px;
  height: 1px;
  transform-origin: left center;
  background: linear-gradient(90deg, rgba(57, 230, 167, 0.8), transparent);
}

.route-one {
  transform: rotate(27deg);
}

.route-two {
  transform: rotate(145deg);
}

.route-three {
  transform: rotate(-52deg);
}

.message-preview {
  display: grid;
  gap: 12px;
  padding: 0 18px 18px;
}

.message-preview div {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(2, 11, 12, 0.5);
}

.message-preview p {
  margin: 0;
  color: var(--soft);
  font-size: 14px;
}

.avatar {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--green);
}

.avatar.accent {
  background: var(--teal);
}

.section-heading {
  max-width: 900px;
  margin-bottom: 38px;
}

.section-heading.left {
  margin-bottom: 0;
}

.muted {
  background: rgba(255, 255, 255, 0.025);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.position-grid,
.features-grid,
.deploy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.private-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.private-card {
  min-height: 220px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(57, 230, 167, 0.08), rgba(255, 255, 255, 0.045));
}

.private-card span {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--green);
  font-weight: 900;
}

.private-card p,
.concern-panel p {
  color: var(--muted);
}

.concern-panel {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.concern-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  padding: 22px;
  border-bottom: 1px solid var(--line);
}

.concern-heading strong {
  display: block;
  color: var(--soft);
  font-size: 22px;
}

.concern-heading p {
  max-width: 520px;
  margin-bottom: 0;
}

.concern-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.concern-list article {
  min-height: 190px;
  padding: 22px;
  border-left: 1px solid var(--line);
}

.concern-list article:first-child {
  border-left: 0;
}

.concern-list span {
  display: inline-flex;
  margin-bottom: 24px;
  color: var(--green);
  font-weight: 900;
}

.concern-list h3 {
  font-size: 19px;
}

.concern-list p {
  margin-bottom: 0;
}

.feature-card,
.capability,
.pricing-card {
  padding: 24px;
}

.feature-card p,
.capability p,
.pricing-card li,
.faq-list p,
.service-table p,
.timeline span {
  color: var(--muted);
}

.card-icon {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--green);
  font-weight: 900;
}

.flow {
  display: grid;
  grid-template-columns: 1fr 36px 1fr 36px 1fr 36px 1fr;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.flow span {
  min-height: 48px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(57, 230, 167, 0.08);
  color: var(--soft);
  font-weight: 800;
  text-align: center;
}

.flow i {
  height: 1px;
  background: linear-gradient(90deg, var(--green), transparent);
}

.scenario-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.scenario-pill {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--soft);
  font-weight: 800;
}

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

.capability {
  min-height: 168px;
}

.capability::before {
  content: "";
  display: block;
  width: 44px;
  height: 4px;
  margin-bottom: 22px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green), var(--teal), var(--yellow));
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 46px;
}

.platform-stack {
  display: grid;
  gap: 14px;
}

.platform-item {
  padding: 22px;
}

.platform-item strong {
  display: block;
  font-size: 25px;
}

.platform-item span,
.label {
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.platform-item p {
  margin: 10px 0 0;
  font-size: 15px;
}

.deploy-grid {
  grid-template-columns: repeat(2, 1fr);
}

.pricing-card.highlight {
  background: linear-gradient(160deg, rgba(57, 230, 167, 0.14), rgba(255, 255, 255, 0.06));
  border-color: rgba(57, 230, 167, 0.38);
}

.price {
  display: block;
  margin: 18px 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.1;
}

.price span {
  color: var(--muted);
  font-size: 16px;
}

.pricing-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
}

.service-table {
  margin-top: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  scroll-margin-top: 96px;
}

.service-table > div {
  display: grid;
  grid-template-columns: 140px 92px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border-top: 1px solid var(--line);
}

.service-table > div:first-child {
  border-top: 0;
  background: rgba(255, 255, 255, 0.05);
}

.service-table p {
  margin: 0;
}

.service-table b {
  color: var(--yellow);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  position: relative;
  min-height: 164px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.timeline li::before {
  content: counter(list-item, decimal-leading-zero);
  display: block;
  margin-bottom: 28px;
  color: var(--green);
  font-weight: 900;
}

.timeline strong {
  display: block;
  margin-bottom: 8px;
  font-size: 19px;
}

.timeline span {
  display: block;
  font-size: 14px;
}

.faq-section {
  padding-top: 20px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  padding: 18px 20px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
}

.faq-list p {
  margin: 12px 0 0;
}

.cta {
  min-height: 70vh;
  text-align: center;
}

.cta-inner {
  max-width: 820px;
  margin: auto;
}

.cta-inner h2 {
  margin-left: auto;
  margin-right: auto;
}

.cta-inner p {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.contact-actions {
  justify-content: center;
  margin: 30px 0 0;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px max(24px, calc((100vw - 1180px) / 2));
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.site-footer strong {
  color: var(--text);
}

.contact-dock {
  position: fixed;
  right: 22px;
  top: 50%;
  z-index: 25;
  transform: translateY(-50%);
}

.dock-main {
  display: flex;
  width: 46px;
  min-height: 132px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(57, 230, 167, 0.5);
  border-radius: 999px;
  background: linear-gradient(135deg, var(--green), var(--teal));
  color: #061011;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  line-height: 1.15;
  box-shadow: 0 18px 44px rgba(57, 230, 167, 0.24);
}

.dock-main span {
  writing-mode: vertical-rl;
  letter-spacing: 0.08em;
}

.dock-panel {
  position: absolute;
  right: 58px;
  top: 50%;
  display: grid;
  width: 210px;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(7, 16, 17, 0.96);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translate(8px, -50%);
  transition: opacity 180ms ease, transform 180ms ease;
}

.contact-dock.is-open .dock-panel,
.contact-dock:hover .dock-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translate(0, -50%);
}

.dock-panel p {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.dock-panel a,
.dock-panel button {
  display: flex;
  min-height: 42px;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--soft);
  cursor: pointer;
  font: inherit;
  text-align: left;
  transition: background 180ms ease, border-color 180ms ease;
}

.dock-panel a:hover,
.dock-panel button:hover {
  border-color: rgba(57, 230, 167, 0.32);
  background: rgba(57, 230, 167, 0.08);
}

.social-icon {
  display: grid;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 8px;
  background: rgba(57, 230, 167, 0.14);
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.social-icon svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.dock-label {
  display: inline;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .site-header {
    width: min(100% - 24px, 720px);
  }

  .nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #071011;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.48);
  }

  .nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: inline-block;
  }

  .section,
  .section-band {
    padding: 86px 18px;
  }

  .hero {
    padding-top: 116px;
  }

  .hero-grid,
  .split,
  .position-grid,
  .private-grid,
  .concern-heading,
  .concern-list,
  .features-grid,
  .deploy-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero-visual,
  .network-panel {
    min-height: 480px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .flow {
    grid-template-columns: 1fr;
  }

  .flow i {
    width: 1px;
    height: 24px;
    margin: auto;
    background: linear-gradient(180deg, var(--green), transparent);
  }

  .service-table > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .service-table > div:first-child {
    display: none;
  }

  .service-table > div {
    padding: 22px 18px;
  }

  .service-table span {
    color: var(--text);
    font-size: 18px;
    font-weight: 900;
  }

  .concern-heading {
    align-items: flex-start;
  }

  .concern-list article {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .site-footer {
    display: grid;
  }

  .contact-dock {
    right: 12px;
    top: auto;
    bottom: 14px;
    transform: none;
  }

  .dock-main {
    width: auto;
    min-width: 106px;
    min-height: 48px;
    padding: 0 16px;
    font-size: 14px;
  }

  .dock-main span {
    writing-mode: horizontal-tb;
    letter-spacing: 0;
  }

  .dock-panel {
    top: auto;
    right: 0;
    bottom: 60px;
    width: min(210px, calc(100vw - 76px));
    transform: translateY(8px);
  }

  .contact-dock.is-open .dock-panel,
  .contact-dock:hover .dock-panel {
    transform: translateY(0);
  }
}

@media (max-width: 520px) {
  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 28px;
  }

  .hero-actions,
  .contact-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .node-a {
    left: 18px;
  }

  .node-b {
    right: 20px;
  }

  .node-c {
    right: 18px;
  }

  .node-d {
    left: 18px;
  }
}