:root {
  --bg: #071513;
  --panel: #0d211f;
  --panel-2: #12302c;
  --text: #e7fff8;
  --muted: #a4c8bd;
  --mint: #35f2ad;
  --lime: #cdfa63;
  --aqua: #36d1ff;
  --line: rgba(231, 255, 248, 0.14);
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Segoe UI", Inter, ui-sans-serif, system-ui, sans-serif;
  line-height: 1.6;
}

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

.page-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(231, 255, 248, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(231, 255, 248, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1200px, calc(100% - 40px));
  min-height: 78px;
  margin: 0 auto;
  background: rgba(7, 21, 19, 0.8);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 850;
  letter-spacing: -0.03em;
}

.brand-cube {
  width: 38px;
  height: 38px;
  display: inline-block;
  background:
    linear-gradient(135deg, transparent 0 48%, rgba(255, 255, 255, 0.28) 49% 51%, transparent 52%),
    linear-gradient(135deg, var(--mint), var(--aqua));
  border-radius: 10px;
  box-shadow: 0 0 34px rgba(53, 242, 173, 0.28);
}

.navigation {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.navigation a {
  transition: color 0.2s ease;
}

.navigation a:hover {
  color: var(--mint);
}

.toggle {
  display: none;
  border: 1px solid var(--line);
  padding: 10px 14px;
  color: var(--text);
  background: var(--panel);
  border-radius: 12px;
}

.hero,
.section,
.metrics,
.footer {
  position: relative;
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 42px;
  align-items: center;
  min-height: 760px;
  padding: 84px 0 70px;
}

.hero::before {
  content: "";
  position: absolute;
  width: 540px;
  height: 540px;
  right: 4%;
  top: 12%;
  background: radial-gradient(circle, rgba(53, 242, 173, 0.22), transparent 68%);
  filter: blur(4px);
}

.hero-copy,
.console-card {
  position: relative;
  z-index: 1;
}

.label {
  margin: 0 0 16px;
  color: var(--mint);
  font-weight: 850;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

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

h1 {
  margin-bottom: 24px;
  max-width: 980px;
  font-size: clamp(3rem, 6.8vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.08em;
}

h2 {
  margin-bottom: 22px;
  font-size: clamp(2rem, 4.8vw, 5.2rem);
  line-height: 0.94;
  letter-spacing: -0.07em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.35rem;
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.lead {
  color: var(--muted);
  font-size: 1.17rem;
  max-width: 740px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 14px;
  font-weight: 850;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.button.fill {
  color: #04211a;
  background: var(--mint);
  box-shadow: 0 14px 44px rgba(53, 242, 173, 0.24);
}

.button.ghost {
  color: var(--text);
  border: 1px solid var(--line);
}

.console-card {
  overflow: hidden;
  background: rgba(13, 33, 31, 0.86);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.console-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.console-header span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--mint);
}

.console-header span:nth-child(2) {
  background: var(--lime);
}

.console-header span:nth-child(3) {
  background: var(--aqua);
  margin-right: 10px;
}

.console-body {
  padding: 28px;
  font-family: "Cascadia Mono", "Consolas", monospace;
  color: #d8fff3;
}

.console-body p {
  margin: 0;
  padding: 15px 0;
  border-bottom: 1px dashed rgba(231, 255, 248, 0.12);
}

.console-body p:last-child {
  border-bottom: 0;
}

.console-body span {
  color: var(--lime);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: -22px;
}

.metrics article,
.solution-grid article,
.platform-panel,
.delivery-grid article,
.operations-list p,
.case-grid article,
.contact-card {
  background: linear-gradient(180deg, rgba(18, 48, 44, 0.88), rgba(13, 33, 31, 0.88));
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.18);
}

.metrics article {
  padding: 24px;
}

.metrics strong {
  display: block;
  color: var(--lime);
  font-size: 2.4rem;
  line-height: 1;
  letter-spacing: -0.06em;
}

.metrics span {
  color: var(--muted);
}

.section {
  padding: 100px 0;
}

.overview {
  display: grid;
  grid-template-columns: 0.94fr 1.06fr;
  gap: 52px;
}

.overview-text {
  color: var(--muted);
  font-size: 1.08rem;
}

.solutions {
  padding-top: 30px;
}

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

.solution-grid article {
  padding: 28px;
}

.solution-grid article span {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--lime);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.solution-grid p,
.solution-grid li,
.delivery-grid p,
.operations-list p,
.case-grid p,
.contact p {
  color: var(--muted);
}

.solution-grid ul {
  margin: 18px 0 0;
  padding-left: 18px;
}

.platform {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 24px;
  align-items: stretch;
}

.platform-panel {
  padding: 36px;
}

.architecture {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(4, 120px);
  gap: 12px;
}

.node {
  display: grid;
  place-items: center;
  padding: 18px;
  text-align: center;
  color: #05251d;
  background: var(--mint);
  border-radius: 22px;
  font-weight: 900;
  box-shadow: 0 18px 50px rgba(53, 242, 173, 0.13);
}

.node-a {
  grid-column: 1 / 4;
}

.node-b {
  grid-column: 4 / 7;
}

.node-c {
  grid-column: 2 / 6;
  background: var(--lime);
}

.node-d {
  grid-column: 1 / 3;
  background: var(--aqua);
}

.node-e {
  grid-column: 3 / 5;
}

.node-f {
  grid-column: 5 / 7;
  background: #8dffd6;
}

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

.delivery-grid article {
  padding: 26px;
}

.delivery-grid strong {
  display: block;
  margin-bottom: 42px;
  color: var(--aqua);
  font-size: 2rem;
  letter-spacing: -0.05em;
}

.operations {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 28px;
}

.operations-copy {
  position: sticky;
  top: 110px;
  align-self: start;
}

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

.operations-list p {
  margin: 0;
  padding: 20px 22px;
}

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

.case-grid article {
  padding: 28px;
}

.contact {
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  gap: 28px;
  align-items: start;
}

.contact-card {
  padding: 32px;
}

.contact-card a:not(.button) {
  color: var(--mint);
  font-weight: 850;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px 0 48px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .toggle {
    display: inline-flex;
  }

  .navigation {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 84px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 18px;
  }

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

  .hero,
  .overview,
  .platform,
  .operations,
  .contact {
    grid-template-columns: 1fr;
  }

  .metrics,
  .solution-grid,
  .delivery-grid,
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .operations-copy {
    position: static;
  }
}

@media (max-width: 640px) {
  .topbar,
  .hero,
  .section,
  .metrics,
  .footer {
    width: min(100% - 28px, 1200px);
  }

  .hero {
    min-height: auto;
    padding: 60px 0;
  }

  .metrics,
  .solution-grid,
  .delivery-grid,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .architecture {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .node,
  .node-a,
  .node-b,
  .node-c,
  .node-d,
  .node-e,
  .node-f {
    grid-column: auto;
  }

  .section {
    padding: 70px 0;
  }

  .footer {
    flex-direction: column;
  }
}