:root {
  --bg: #06101d;
  --bg-soft: #0a1727;
  --panel: rgba(13, 29, 48, 0.72);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f4f7fb;
  --muted: #9aa9bb;
  --accent: #d9b86c;
  --accent-strong: #f0cf80;
  --max: 1180px;
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 75% 5%, rgba(36, 78, 124, 0.20), transparent 34rem),
    linear-gradient(180deg, #07111f 0%, #050b14 100%);
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.shell {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  left: 16px;
  top: -60px;
  padding: 10px 14px;
  background: var(--text);
  color: var(--bg);
  text-decoration: none;
  border-radius: 8px;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  border-bottom: 1px solid transparent;
  transition: background 200ms ease, border-color 200ms ease, backdrop-filter 200ms ease;
}

.site-header.is-scrolled {
  background: rgba(5, 11, 20, 0.78);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}

.nav-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  position: relative;
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: var(--accent);
}

.brand-mark::before {
  width: 1px;
  height: 16px;
  top: 5px;
  left: 13px;
}

.brand-mark::after {
  width: 16px;
  height: 1px;
  top: 13px;
  left: 5px;
}

.site-nav {
  display: flex;
  gap: 30px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.nav-toggle {
  display: none;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: 150px 0 100px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.stars,
.stars::before,
.stars::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-repeat: repeat;
}

.stars {
  opacity: 0.55;
  background-image:
    radial-gradient(circle, rgba(255,255,255,.75) 0 1px, transparent 1.2px);
  background-size: 113px 97px;
}

.stars::before,
.stars::after {
  content: "";
}

.stars::before {
  background-image:
    radial-gradient(circle, rgba(217,184,108,.9) 0 1px, transparent 1.3px);
  background-size: 179px 131px;
  transform: translate(39px, 19px);
}

.stars::after {
  opacity: 0.45;
  background-image:
    radial-gradient(circle, rgba(167,207,255,.9) 0 1px, transparent 1.2px);
  background-size: 227px 173px;
  transform: translate(91px, 63px);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: clamp(50px, 8vw, 110px);
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.22em;
}

.hero h1 {
  margin: 0;
  font-family: "Arial Black", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(4.4rem, 10vw, 9rem);
  font-stretch: expanded;
  line-height: 0.88;
  letter-spacing: 0.035em;
  text-transform: uppercase;
  background: linear-gradient(180deg, #ffffff 0%, #d1d8e1 62%, #8d9aaa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 18px 50px rgba(0,0,0,.35);
}

.hero-subtitle {
  margin: 28px 0 22px;
  font-size: clamp(1rem, 2.4vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.34em;
}

.hero-subtitle span {
  color: var(--accent);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 34px;
}

.hero-meta span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

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

.button-primary {
  color: #111827;
  background: var(--accent-strong);
}

.button-primary:hover {
  background: #ffe19a;
}

.button-ghost {
  border-color: var(--line);
  background: rgba(255,255,255,.035);
}

.button-ghost:hover {
  border-color: rgba(255,255,255,.28);
  background: rgba(255,255,255,.06);
}

.signal-card {
  position: relative;
  min-height: 430px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 32px;
  background:
    linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.015)),
    rgba(5, 15, 28, .62);
  box-shadow:
    0 34px 80px rgba(0,0,0,.38),
    inset 0 1px rgba(255,255,255,.09);
  backdrop-filter: blur(14px);
}

.signal-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 18%, rgba(217,184,108,.17), transparent 33%),
    linear-gradient(transparent 49%, rgba(255,255,255,.035) 50%, transparent 51%);
  background-size: auto, 100% 24px;
  pointer-events: none;
}

.signal-topline {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.signal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent);
}

.spectrum {
  position: relative;
  z-index: 2;
  height: 122px;
  margin: 56px 0 38px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.spectrum span {
  flex: 1;
  height: var(--h);
  min-height: 5px;
  border-radius: 999px;
  background: linear-gradient(to top, rgba(217,184,108,.3), var(--accent-strong));
  box-shadow: 0 0 20px rgba(217,184,108,.15);
  animation: pulse 2.8s ease-in-out infinite alternate;
}

.spectrum span:nth-child(2n) { animation-delay: -.6s; }
.spectrum span:nth-child(3n) { animation-delay: -1.2s; }

@keyframes pulse {
  to { transform: scaleY(.62); opacity: .62; }
}

.signal-readout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.signal-readout div {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.signal-readout small,
.signal-readout strong {
  display: block;
}

.signal-readout small {
  color: var(--muted);
  font-size: .66rem;
  letter-spacing: .16em;
}

.signal-readout strong {
  margin-top: 3px;
  font-size: .96rem;
  letter-spacing: .08em;
}

.antenna {
  position: absolute;
  right: 32px;
  bottom: 20px;
  width: 150px;
  height: 120px;
  opacity: .25;
}

.mast,
.beam,
.wave {
  position: absolute;
  display: block;
}

.mast {
  left: 73px;
  bottom: 0;
  width: 2px;
  height: 88px;
  background: var(--text);
  transform: skewX(-5deg);
}

.beam {
  left: 32px;
  width: 84px;
  height: 1px;
  background: var(--text);
}

.beam-a { top: 40px; transform: rotate(14deg); }
.beam-b { top: 58px; transform: rotate(-12deg); }

.wave {
  border: 1px solid var(--accent);
  border-left-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
  transform: rotate(45deg);
}

.wave-a { width: 28px; height: 28px; right: 40px; top: 17px; }
.wave-b { width: 48px; height: 48px; right: 28px; top: 5px; }
.wave-c { width: 70px; height: 70px; right: 16px; top: -7px; }

.hero-rule {
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(217,184,108,.55), transparent);
}

.section {
  padding: 120px 0;
  border-bottom: 1px solid var(--line);
}

.section-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: clamp(45px, 8vw, 100px);
}

.section h2 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(2.2rem, 5vw, 4.6rem);
  line-height: 1.06;
  letter-spacing: -.04em;
}

.body-copy {
  color: #bcc7d4;
  font-size: clamp(1rem, 1.6vw, 1.16rem);
}

.body-copy p {
  margin: 0 0 1.2em;
}

.section-panel {
  background: rgba(255,255,255,.018);
}

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

.info-card {
  min-height: 280px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(155deg, rgba(255,255,255,.055), transparent 45%),
    var(--panel);
  transition: transform 180ms ease, border-color 180ms ease;
}

.info-card:hover {
  transform: translateY(-5px);
  border-color: rgba(217,184,108,.34);
}

.card-index {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(217,184,108,.45);
  border-radius: 50%;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 800;
}

.info-card h3 {
  margin: 78px 0 10px;
  font-size: 1.35rem;
}

.info-card p {
  margin: 0;
  color: var(--muted);
}

.qsl-grid {
  display: grid;
  grid-template-columns: 1fr .9fr;
  align-items: center;
  gap: clamp(50px, 9vw, 120px);
}

.text-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin-top: 18px;
  color: var(--accent-strong);
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid rgba(217,184,108,.35);
}

.qsl-card {
  aspect-ratio: 1.62 / 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 26px;
  background:
    radial-gradient(circle at 78% 18%, rgba(217,184,108,.18), transparent 31%),
    linear-gradient(135deg, #0d2237, #08111e 70%);
  box-shadow: 0 30px 70px rgba(0,0,0,.38);
}

.qsl-card-top,
.qsl-card-bottom {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .18em;
}

.qsl-card strong {
  margin-top: auto;
  font-family: "Arial Black", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(2.4rem, 6vw, 5.3rem);
  line-height: 1;
  letter-spacing: .035em;
}

.qsl-card p {
  margin: 9px 0 auto;
  color: var(--accent);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .22em;
}

.contact-section {
  background:
    radial-gradient(circle at 15% 50%, rgba(217,184,108,.07), transparent 28rem);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
}

.contact-links {
  display: grid;
  align-content: center;
}

.contact-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.contact-links span {
  color: var(--muted);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.contact-links strong {
  text-align: right;
}

.site-footer {
  padding: 28px 0;
  color: var(--muted);
  font-size: .82rem;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.footer-wrap strong {
  color: var(--text);
  letter-spacing: .08em;
}

@media (max-width: 880px) {
  .hero {
    min-height: auto;
  }

  .hero-grid,
  .section-grid,
  .qsl-grid,
  .contact-wrap {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 60px;
  }

  .signal-card {
    min-height: 360px;
  }

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

  .info-card {
    min-height: 220px;
  }

  .info-card h3 {
    margin-top: 45px;
  }
}

@media (max-width: 680px) {
  .shell {
    width: min(calc(100% - 28px), var(--max));
  }

  .nav-wrap {
    min-height: 68px;
  }

  .nav-toggle {
    display: inline-flex;
    width: 42px;
    height: 42px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: rgba(255,255,255,.03);
  }

  .nav-toggle span:not(.sr-only) {
    width: 17px;
    height: 1px;
    background: var(--text);
  }

  .site-nav {
    position: absolute;
    top: 68px;
    left: 14px;
    right: 14px;
    display: none;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(5, 11, 20, .96);
    backdrop-filter: blur(18px);
  }

  .site-nav.is-open {
    display: grid;
    gap: 6px;
  }

  .site-nav a {
    padding: 11px 8px;
  }

  .hero {
    padding: 125px 0 72px;
  }

  .hero h1 {
    font-size: clamp(4rem, 22vw, 6.3rem);
  }

  .hero-subtitle {
    letter-spacing: .18em;
  }

  .signal-card {
    min-height: 330px;
    padding: 22px;
    border-radius: 24px;
  }

  .spectrum {
    gap: 5px;
    margin-top: 46px;
  }

  .section {
    padding: 84px 0;
  }

  .section h2 {
    font-size: clamp(2.25rem, 12vw, 3.5rem);
  }

  .qsl-card {
    border-radius: 20px;
  }

  .contact-links strong {
    max-width: 68%;
    overflow-wrap: anywhere;
  }

  .footer-wrap {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}