:root {
  color-scheme: light;
  --ink: #18211f;
  --muted: #5f6d68;
  --paper: #fbfaf5;
  --panel: #ffffff;
  --line: #d9ded8;
  --field: #276749;
  --field-dark: #174633;
  --signal: #d04f2f;
  --sun: #f2b84b;
  --water: #2f6f8f;
  --shadow: 0 20px 50px rgba(24, 33, 31, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  background: rgba(251, 250, 245, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  min-width: 76px;
  height: 38px;
  place-items: center;
  background: var(--ink);
  border-radius: 6px;
  color: var(--paper);
  font-size: 0.9rem;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav a,
.nav-toggle {
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 9px 12px;
  color: var(--muted);
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

.nav-toggle {
  display: none;
  background: var(--panel);
  cursor: pointer;
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.78fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: clamp(44px, 8vw, 96px) clamp(18px, 5vw, 64px) 56px;
}

.hero-copy,
.section {
  max-width: 1180px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--field);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  max-width: 840px;
  font-size: clamp(3rem, 7vw, 6.8rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 4.1rem);
}

h3 {
  font-size: 1.35rem;
}

.lede,
.hero-copy > p:not(.eyebrow),
.section p,
.content-page p,
.article-page p {
  color: var(--muted);
  font-size: 1.08rem;
}

.lede {
  max-width: 690px;
  margin: 24px 0 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid var(--ink);
  border-radius: 7px;
  padding: 11px 18px;
  font-weight: 850;
  text-decoration: none;
}

.button.primary {
  background: var(--ink);
  color: #fff;
}

.button.secondary {
  background: transparent;
  color: var(--ink);
}

.hero-panel {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(47, 111, 143, 0.22), transparent 45%),
    linear-gradient(160deg, #fcf5df 0%, #ebf1e7 48%, #cadfcf 100%);
  box-shadow: var(--shadow);
}

.skyline {
  position: absolute;
  inset: auto 0 0;
  height: 42%;
  background:
    linear-gradient(145deg, transparent 0 22%, var(--field-dark) 22% 32%, transparent 32% 100%),
    linear-gradient(24deg, transparent 0 38%, #315842 38% 48%, transparent 48% 100%),
    linear-gradient(0deg, #1d3e31, #2f6a49);
}

.antenna {
  position: absolute;
  left: 28%;
  bottom: 26%;
  width: 5px;
  height: 46%;
  background: var(--ink);
  transform: rotate(-7deg);
  transform-origin: bottom;
}

.antenna::before,
.antenna::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 150px;
  height: 2px;
  background: rgba(24, 33, 31, 0.6);
  transform-origin: left center;
}

.antenna::before {
  top: 25%;
  transform: rotate(24deg);
}

.antenna::after {
  top: 41%;
  transform: rotate(-18deg);
}

.radio {
  position: absolute;
  right: 12%;
  bottom: 13%;
  display: grid;
  gap: 9px;
  width: min(235px, 60%);
  padding: 22px;
  border: 2px solid rgba(255, 255, 255, 0.42);
  border-radius: 8px;
  background: #1d2523;
  color: #d6f6e4;
  box-shadow: 0 24px 40px rgba(0, 0, 0, 0.25);
}

.radio span {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 32%, #68746e 0 18%, #111 19% 100%);
}

.radio strong {
  font-size: 2rem;
  line-height: 1;
}

.radio small {
  color: #9fb5aa;
  font-weight: 800;
}

.signal {
  position: absolute;
  left: 27%;
  bottom: 60%;
  border: 2px solid var(--signal);
  border-bottom-color: transparent;
  border-left-color: transparent;
  border-radius: 50%;
  opacity: 0.72;
  transform: rotate(-45deg);
}

.signal.one {
  width: 86px;
  height: 86px;
}

.signal.two {
  width: 150px;
  height: 150px;
  margin-left: -32px;
  margin-bottom: -32px;
}

.signal.three {
  width: 220px;
  height: 220px;
  margin-left: -67px;
  margin-bottom: -67px;
}

.section {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 78px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  min-height: 268px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.feature-icon {
  display: inline-block;
  margin-bottom: 52px;
  color: var(--signal);
  font-weight: 900;
}

.split-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  width: 100%;
  max-width: none;
  padding: 70px clamp(18px, 5vw, 64px);
  background: #e3ecdf;
}

.split-band > div {
  max-width: 760px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(18px, 5vw, 64px);
  background: var(--ink);
  color: #f6f2e8;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  gap: 16px;
}

.site-footer a {
  color: inherit;
  font-weight: 700;
  text-decoration: none;
}

.content-page,
.article-page {
  width: min(920px, calc(100% - 36px));
  margin: 0 auto;
  padding: 64px 0 92px;
}

.content-page h1,
.article-page h1 {
  margin-bottom: 22px;
  font-size: clamp(2.7rem, 6vw, 5.4rem);
}

.content-page h2,
.article-page h2 {
  margin-top: 46px;
  font-size: clamp(1.75rem, 3vw, 2.8rem);
}

.content-page ul,
.article-page ul {
  padding-left: 22px;
  color: var(--muted);
  font-size: 1.05rem;
}

.callout {
  margin: 38px 0;
  padding: 24px;
  border-left: 5px solid var(--signal);
  background: #fff;
}

.comparison-table {
  width: 100%;
  margin: 30px 0;
  border-collapse: collapse;
  background: #fff;
  font-size: 0.98rem;
}

.comparison-table th,
.comparison-table td {
  padding: 14px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  background: #e3ecdf;
  color: var(--ink);
}

.contact-form {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 13px 14px;
  font: inherit;
}

.contact-form textarea {
  min-height: 150px;
  resize: vertical;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
  }

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

  .site-nav {
    position: absolute;
    top: 75px;
    right: 18px;
    left: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: var(--shadow);
  }

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

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

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

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

  .split-band,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  .brand span:last-child {
    display: none;
  }

  .hero {
    padding-top: 38px;
  }

  h1 {
    font-size: 2.8rem;
  }

  .button {
    width: 100%;
  }

  .comparison-table {
    display: block;
    overflow-x: auto;
  }
}