.fourde {
  --fourde-warm: #ffb547;
  --fourde-grid: rgba(0, 176, 202, .18);
}

.fourde .entry-hero {
  position: relative;
  min-height: min(790px, calc(100svh - 108px));
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background-image: linear-gradient(90deg, rgba(3, 18, 20, .97) 0%, rgba(3, 18, 20, .9) 48%, rgba(3, 18, 20, .34) 100%), url('/homepage-flow-concept/assets/industrial-service-ecosystem-hero.webp');
  background-position: center;
  background-size: cover;
}

.fourde .entry-hero::after {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--fourde-grid) 1px, transparent 1px), linear-gradient(90deg, var(--fourde-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  content: "";
  mask-image: linear-gradient(90deg, transparent 48%, #000);
  pointer-events: none;
}

.fourde .entry-hero .entry-wrap { position: relative; z-index: 1; }
.fourde .entry-hero h1 { max-width: 760px; }
.fourde .entry-hero h1 span { color: var(--signal); }
.fourde .entry-state { border-color: var(--fourde-warm); color: var(--fourde-warm); }
.fourde .entry-section--alt { background: var(--panel); }

.fourde-signal-grid,
.fourde-use-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 42px;
  border: 1px solid var(--line);
  background: var(--line);
}

.fourde-signal,
.fourde-use {
  min-height: 260px;
  padding: clamp(24px, 3.5vw, 38px);
  background: var(--bg);
}

.fourde-signal span,
.fourde-use span,
.fourde-step span {
  color: var(--signal);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  text-transform: uppercase;
}

.fourde-signal h3,
.fourde-use h3 {
  margin: 24px 0 12px;
  font-family: Oswald, "Arial Narrow", Arial, sans-serif;
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.05;
  text-transform: uppercase;
}

.fourde-signal p,
.fourde-use p { margin: 0; color: var(--muted); line-height: 1.6; }

.reality-layer {
  display: grid;
  grid-template-columns: minmax(260px, .7fr) minmax(0, 1.3fr);
  gap: clamp(34px, 7vw, 90px);
  align-items: center;
  margin-top: 40px;
}
.reality-layer > * { min-width: 0; }

.reality-layer__copy p { color: var(--muted); font-size: 18px; line-height: 1.65; }
.reality-layer__map { width: 100%; min-width: 0; border: 1px solid var(--line); background: var(--bg); }
.reality-layer__node { display: grid; grid-template-columns: 110px 1fr; min-height: 82px; border-bottom: 1px solid var(--line); }
.reality-layer__node:last-child { border-bottom: 0; }
.reality-layer__node span { display: flex; align-items: center; padding: 18px; border-right: 1px solid var(--line); color: var(--signal); font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 10px; text-transform: uppercase; }
.reality-layer__node strong { min-width: 0; display: flex; align-items: center; overflow-wrap: anywhere; padding: 18px 22px; font-family: Oswald, "Arial Narrow", Arial, sans-serif; font-size: 23px; font-weight: 600; letter-spacing: 0; text-transform: uppercase; }

.fourde-method { margin-top: 42px; border: 1px solid var(--line); }
.fourde-step { display: grid; grid-template-columns: 88px 260px 1fr; border-bottom: 1px solid var(--line); }
.fourde-step:last-child { border-bottom: 0; }
.fourde-step > * { margin: 0; padding: 24px; }
.fourde-step span,
.fourde-step h3 { border-right: 1px solid var(--line); }
.fourde-step h3 { font-family: Oswald, "Arial Narrow", Arial, sans-serif; font-size: 25px; font-weight: 600; letter-spacing: 0; text-transform: uppercase; }
.fourde-step p { color: var(--muted); line-height: 1.6; }

.fourde-cta { background: var(--signal); color: #031214; }
.fourde-cta .entry-wrap { display: flex; justify-content: space-between; gap: 48px; align-items: center; }
.fourde-cta h2 { max-width: 760px; }
.fourde-cta p { color: #063d42 !important; }
.fourde-cta .entry-action { flex: 0 0 auto; border-color: #031214; color: #031214; }
.fourde-cta .entry-action:hover { background: #031214; color: #edf5f5; }

@media (max-width: 900px) {
  .fourde-signal-grid, .fourde-use-grid { grid-template-columns: 1fr; }
  .fourde-signal, .fourde-use { min-height: 0; }
  .reality-layer { grid-template-columns: 1fr; }
  .fourde-step { grid-template-columns: 70px 1fr; }
  .fourde-step p { grid-column: 1 / -1; border-top: 1px solid var(--line); }
  .fourde-cta .entry-wrap { display: grid; }
}

@media (max-width: 620px) {
  .fourde .entry-hero { min-height: 680px; background-position: 61% center; }
  .fourde .entry-hero::after { display: none; }
  .fourde .entry-hero h1 { font-size: 42px; overflow-wrap: anywhere; }
  .fourde-step { grid-template-columns: 56px 1fr; }
  .fourde-step > * { padding: 19px; }
  .reality-layer__node { grid-template-columns: 84px 1fr; }
}