:root {
  --green-950: #062b25;
  --green-900: #083c33;
  --green-800: #0d5145;
  --green-100: #e4eee9;
  --paper: #f5f2ea;
  --white: #ffffff;
  --ink: #10211d;
  --muted: #66736d;
  --line: rgba(6, 43, 37, 0.16);
  --orange: #ff6b1a;
  --orange-dark: #df5107;
  --radius: 8px;
  --shadow: 0 28px 80px rgba(6, 43, 37, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--green-900);
  color: var(--white);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.88rem;
}

.skip-link:focus {
  top: 12px;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  vertical-align: middle;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 0 rgba(255, 107, 26, 0.6);
  animation: status-pulse 2.4s ease-out infinite;
}

@keyframes status-pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 107, 26, 0.55); }
  70% { box-shadow: 0 0 0 10px rgba(255, 107, 26, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 107, 26, 0); }
}

.arrow {
  width: 14px;
  height: 14px;
  margin-left: 10px;
  transition: transform 0.25s ease;
}

.button:hover .arrow {
  transform: translateX(4px);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.65, 0.25, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .status-dot { animation: none; }
  .node.pulse { animation: none; }
  .beam { animation: none; }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  min-height: 78px;
  padding: 12px 5vw;
  background: rgba(245, 242, 234, 0.92);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 6px 24px rgba(6, 43, 37, 0.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 220px;
  text-decoration: none;
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 2px;
}

.brand span {
  display: grid;
  gap: 2px;
}

.brand strong {
  font-size: 0.96rem;
  letter-spacing: 0.02em;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 36px;
  color: var(--muted);
  font-size: 0.93rem;
}

.nav a {
  text-decoration: none;
}

.nav a:hover {
  color: var(--green-900);
}

.language-switch {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
}

.language-switch button {
  min-width: 42px;
  min-height: 34px;
  border: 0;
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 750;
  cursor: pointer;
}

.language-switch button.is-active {
  color: var(--white);
  background: var(--green-900);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(360px, 0.84fr);
  gap: 60px;
  align-items: center;
  min-height: calc(100vh - 78px);
  padding: 82px 5vw 76px;
  background:
    linear-gradient(90deg, rgba(245, 242, 234, 1) 0%, rgba(245, 242, 234, 0.92) 54%, rgba(228, 238, 233, 0.86) 100%);
}

.hero-content {
  min-width: 0;
}

.brand-line,
.section-kicker {
  margin: 0 0 22px;
  color: var(--orange-dark);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(3.3rem, 7.1vw, 6.9rem);
  font-weight: 760;
  line-height: 0.94;
  letter-spacing: 0;
}

.hero-text {
  max-width: 650px;
  margin-bottom: 34px;
  color: #47554f;
  font-size: clamp(1.08rem, 2vw, 1.34rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.94rem;
  font-weight: 760;
  text-decoration: none;
}

.button.primary {
  color: var(--white);
  background: var(--green-900);
  box-shadow: 0 8px 24px rgba(6, 43, 37, 0.18);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button.primary:hover {
  background: var(--green-800);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(6, 43, 37, 0.24);
}

.button.secondary {
  transition: background 0.2s ease, border-color 0.2s ease;
}

.button.secondary:hover {
  background: rgba(6, 43, 37, 0.05);
  border-color: var(--green-900);
}

.button.primary.orange {
  color: var(--green-950);
  background: var(--orange);
}

.button.primary.orange:hover {
  background: #ff7c34;
}

.button.secondary {
  color: var(--green-900);
  background: transparent;
  border-color: var(--line);
}

.schematic {
  position: relative;
  width: 100%;
  max-width: 620px;
  justify-self: end;
  padding: 18px;
  border: 1px solid rgba(6, 43, 37, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow);
}

.schematic svg {
  display: block;
  width: 100%;
  height: auto;
}

.beam {
  fill: url(#beam);
}

.grid-line,
.tower-detail,
.network,
.measure {
  fill: none;
  stroke-linecap: round;
}

.grid-line,
.measure {
  stroke: rgba(6, 43, 37, 0.18);
  stroke-width: 1.4;
}

.tower {
  fill: rgba(8, 60, 51, 0.07);
  stroke: var(--green-900);
  stroke-width: 2;
}

.tower-detail {
  stroke: rgba(8, 60, 51, 0.52);
  stroke-width: 1.5;
}

.lantern,
.foundation {
  fill: rgba(255, 255, 255, 0.72);
  stroke: var(--green-900);
  stroke-width: 2;
}

.roof {
  fill: rgba(8, 60, 51, 0.9);
}

.network {
  stroke: rgba(255, 107, 26, 0.58);
  stroke-width: 2;
  stroke-dasharray: 6 7;
}

.node {
  fill: var(--orange);
  stroke: var(--white);
  stroke-width: 3;
  transform-box: fill-box;
  transform-origin: center;
}

.node.pulse {
  animation: node-pulse 3.2s ease-in-out infinite;
}

.node.pulse:nth-of-type(2) { animation-delay: 0.4s; }
.node.pulse:nth-of-type(3) { animation-delay: 0.8s; }
.node.pulse:nth-of-type(4) { animation-delay: 1.2s; }
.node.pulse:nth-of-type(5) { animation-delay: 1.6s; }
.node.pulse:nth-of-type(6) { animation-delay: 2.0s; }

@keyframes node-pulse {
  0%, 100% { opacity: 0.55; transform: scale(0.92); }
  50% { opacity: 1; transform: scale(1.12); }
}

.beam {
  fill: url(#beam);
  transform-origin: 286px 118px;
  animation: beam-sweep 6s ease-in-out infinite;
}

@keyframes beam-sweep {
  0%, 100% { opacity: 0.7; transform: rotate(-2deg); }
  50% { opacity: 1; transform: rotate(2deg); }
}

.section {
  padding: 94px 5vw;
  border-top: 1px solid var(--line);
}

.section-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.86fr) minmax(360px, 1fr);
  gap: 64px;
  align-items: start;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 4.4rem);
  font-weight: 740;
  line-height: 1;
  letter-spacing: 0;
}

.offer-lead {
  max-width: 520px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.02rem;
}

.offer-list {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.offer-body {
  min-width: 0;
}

.offer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 6px;
}

.offer-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--orange-dark);
  background: rgba(255, 107, 26, 0.06);
  font-size: 0.7rem;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.offer-list article {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 22px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.72);
  transition: background 0.25s ease, transform 0.25s ease;
}

.offer-list article:hover {
  background: var(--white);
  transform: translateY(-2px);
}

.offer-list span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--green-950);
  background: var(--orange);
  border-radius: 50%;
  font-size: 0.78rem;
  font-weight: 850;
}

.offer-list h3 {
  margin: 0;
  font-size: 1.18rem;
}

.offer-list p,
.proof-points p,
.contact p {
  margin-bottom: 0;
  color: var(--muted);
}

.proof {
  background: var(--white);
}

.proof-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.92fr) minmax(320px, 0.72fr);
  gap: 70px;
  align-items: start;
}

.proof-points {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.proof-points p {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  font-size: 1.08rem;
}

.clients-label {
  margin: 64px 0 16px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.clients {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.clients span {
  transition: color 0.2s ease, background 0.2s ease;
}

.clients span:hover {
  color: var(--orange-dark);
  background: var(--paper);
}

.clients span {
  padding: 24px 20px;
  background: var(--white);
  color: var(--green-900);
  font-weight: 780;
  text-align: center;
}

.contact {
  display: flex;
  justify-content: space-between;
  gap: 36px;
  align-items: end;
  padding: 94px 5vw;
  color: var(--white);
  background:
    radial-gradient(circle at 82% 22%, rgba(255, 107, 26, 0.28), transparent 26%),
    var(--green-950);
}

.section-kicker.on-dark {
  color: var(--orange);
  margin-bottom: 18px;
}

.contact h2 {
  max-width: 860px;
}

.contact p {
  max-width: 620px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.08rem;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 5vw;
  color: rgba(255, 255, 255, 0.68);
  background: var(--green-950);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
  }

  .hero,
  .section-layout,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .schematic {
    justify-self: start;
  }

  .clients {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact {
    align-items: start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .site-header {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding-right: 24px;
    padding-left: 24px;
  }

  .language-switch {
    margin-left: 0;
    transform: scale(0.9);
    transform-origin: left center;
  }

  .brand {
    min-width: 0;
  }

  .brand img {
    width: 46px;
    height: 46px;
  }

  .brand small {
    display: none;
  }

  .nav {
    order: 3;
    justify-content: flex-start;
    gap: 46px;
    width: 100%;
  }

  .hero,
  .section,
  .contact {
    padding-right: 56px;
    padding-left: 24px;
  }

  .hero-content,
  .hero-actions,
  .schematic,
  .section-layout,
  .proof-grid,
  .clients,
  .contact > * {
    width: min(318px, 100%);
    max-width: min(318px, 100%);
  }

  h1 {
    max-width: 100%;
    font-size: 2.5rem;
    line-height: 1.03;
  }

  .hero-text,
  .brand-line {
    max-width: 100%;
  }

  .hero-actions,
  footer {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .schematic {
    padding: 10px;
  }

  .offer-list article {
    grid-template-columns: 1fr;
  }

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