*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  --surface: #000000;
  --surface-2: #0B0C0A;
  --panel: #11120F;
  --line: #2E3028;
  --line-strong: #535743;
  --text: #F2F0E6;
  --muted: #9A9B8A;
  --dim: #676A5B;
  --signal: #FFB800;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font-family: "IBM Plex Mono", "Space Mono", Consolas, monospace;
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 184, 0, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 184, 0, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
  pointer-events: none;
}

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

.shell {
  width: min(1440px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 72px;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.brand {
  height: 72px;
  display: flex;
  align-items: center;
  padding: 0 24px;
  border-right: 1px solid var(--line);
  color: var(--signal);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: none;
}

.brand img {
  width: clamp(124px, 13vw, 188px);
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1px;
  height: 72px;
}

.nav-links a {
  display: flex;
  align-items: center;
  height: 72px;
  padding: 0 18px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-links a:last-child {
  border-right: 0;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--signal);
  background: var(--surface-2);
  outline: none;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.button:hover,
.button:focus-visible {
  border-color: var(--signal);
  color: var(--signal);
  outline: none;
}

.button.primary {
  border-color: var(--signal);
  background: var(--signal);
  color: #000000;
}

.button.primary:hover,
.button.primary:focus-visible {
  background: transparent;
  color: var(--signal);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.35fr);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.hero::after {
  content: "MUD";
  display: grid;
  place-items: center;
  min-height: 100%;
  padding: clamp(28px, 5vw, 64px);
  border-left: 1px solid var(--line);
  background:
    linear-gradient(rgba(255, 184, 0, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 184, 0, 0.05) 1px, transparent 1px),
    var(--surface-2);
  background-size: 24px 24px;
  color: var(--signal);
  font-size: clamp(46px, 8vw, 120px);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 0.86;
}

.hero > * {
  grid-column: 1;
}

.label {
  align-self: end;
  padding: clamp(34px, 5vw, 72px) clamp(22px, 5vw, 64px) 0;
  color: var(--signal);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 900px;
  margin: 18px 0 0;
  padding: 0 clamp(22px, 5vw, 64px);
  font-size: clamp(42px, 7vw, 92px);
  line-height: 0.94;
  letter-spacing: 0;
  text-transform: uppercase;
}

.intro {
  max-width: 760px;
  margin: 0;
  padding: 24px clamp(22px, 5vw, 64px) 0;
  color: var(--muted);
  font-size: 16px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 30px clamp(22px, 5vw, 64px) clamp(34px, 5vw, 72px);
}

.grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
}

.side {
  padding: 42px 28px;
  border-right: 1px solid var(--line);
  color: var(--signal);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.content {
  padding: clamp(34px, 5vw, 72px);
}

.block {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  border: 1px solid var(--line);
  background: var(--surface-2);
}

.block + .block {
  margin-top: 14px;
}

.block h2 {
  margin: 0;
  padding: 24px;
  border-right: 1px solid var(--line);
  color: var(--text);
  font-size: 18px;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.block p,
.block ul {
  margin: 0;
  padding: 24px;
}

p,
li {
  color: var(--muted);
  font-size: 14px;
}

ul {
  padding-left: 18px;
}

li + li {
  margin-top: 8px;
}

.block .button-row {
  grid-column: 1 / -1;
  padding: 0 24px 24px;
}

.footer {
  padding: 24px 28px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 1100px) {
  .nav {
    grid-template-columns: 1fr;
  }

  .brand {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-links {
    justify-content: flex-start;
    height: auto;
    overflow-x: auto;
  }

  .nav-links a {
    height: 54px;
    white-space: nowrap;
  }

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

  .hero::after {
    min-height: 160px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .side {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 22px;
  }
}

@media (max-width: 720px) {
  .brand {
    padding: 0 14px;
  }

  h1 {
    font-size: clamp(38px, 13vw, 64px);
  }

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

  .block h2 {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}