:root {
  --bg-0: #050816;
  --bg-1: #091224;
  --bg-2: #0d1930;
  --panel: rgba(8, 16, 34, 0.9);
  --panel-strong: rgba(11, 21, 42, 0.96);
  --line: rgba(120, 177, 255, 0.2);
  --line-strong: rgba(120, 177, 255, 0.45);
  --text: #eff5ff;
  --muted: #9fb0d2;
  --accent: #77d5ff;
  --accent-strong: #b5f2ff;
  --success: #8af5bd;
  --warning: #ffd480;
  --danger: #ff8f8f;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.6;
  background:
    radial-gradient(circle at top left, rgba(119, 213, 255, 0.12), transparent 28%),
    radial-gradient(circle at 80% 10%, rgba(138, 245, 189, 0.08), transparent 24%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 42%, var(--bg-2) 100%);
}

a { color: inherit; }
code,
pre,
.label,
.mini-label,
.signal-strip dt,
.signal-strip dd,
.badge,
.topbar,
.event-log span,
.command-row span,
.queue-list strong {
  font-family: "IBM Plex Mono", monospace;
}

.screen-noise,
.scanline {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.screen-noise {
  opacity: 0.24;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 28%, transparent 85%);
}

.scanline {
  background: linear-gradient(180deg, transparent, rgba(119, 213, 255, 0.04), transparent);
  background-size: 100% 6px;
  opacity: 0.22;
}

.shell {
  width: min(1240px, calc(100% - 36px));
  margin: 0 auto;
}

.masthead {
  padding: 24px 0 36px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  margin-bottom: 22px;
}

.topbar-left,
.topbar-right {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.topbar strong { color: var(--accent-strong); }

.hero-grid,
.layout-grid,
.command-layout,
.lower-grid,
.two-col {
  display: grid;
  gap: 20px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.25fr) minmax(330px, 0.9fr);
  align-items: start;
}

.two-col {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
}

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

.command-layout {
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  align-items: start;
}

.panel {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(119, 213, 255, 0.08), transparent 42%, rgba(138, 245, 189, 0.04));
  pointer-events: none;
}

.frame-glow::after {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(181, 242, 255, 0.08);
  pointer-events: none;
}

.hero-copy,
.hero-dashboard,
.comparison-panel,
.topology-panel,
.command-table,
.snippet-stack,
.module-card,
.queue-panel,
.closing-panel {
  padding: 24px;
}

.panel-meta,
.dashboard-head,
.section-heading {
  position: relative;
  z-index: 1;
}

.panel-meta,
.dashboard-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
}

.panel-meta {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
}

.eyebrow,
.label,
.mini-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.eyebrow,
.label { color: var(--accent); }
.mini-label { color: var(--warning); font-size: 0.74rem; }
.mini-label.accent { color: var(--accent-strong); }
.mini-label.muted { color: var(--muted); }

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.02;
  letter-spacing: -0.04em;
}

h1 {
  max-width: 11ch;
  font-size: clamp(3.2rem, 8vw, 6.3rem);
}

h2 {
  font-size: clamp(1.7rem, 4vw, 3rem);
  max-width: 12ch;
}

h3 {
  font-size: 1.35rem;
}

.lede,
.body-copy,
.body-copy p,
.hero-dashboard p,
.command-row p,
.module-card p,
.queue-list p,
.signal-strip dd,
.event-log p,
.comparison-columns li,
.topbar a {
  color: var(--muted);
}

.lede {
  max-width: 63ch;
  margin: 18px 0 0;
  font-size: 1.05rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  text-decoration: none;
  font-weight: 700;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  border-color: var(--accent-strong);
  transform: translateY(-1px);
  outline: none;
}

.button.primary {
  background: linear-gradient(90deg, var(--accent), #9af2ff);
  color: #05101b;
}

.button.secondary {
  background: rgba(119, 213, 255, 0.08);
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 28px 0 0;
}

.signal-strip div {
  padding: 12px;
  border: 1px solid rgba(119, 213, 255, 0.12);
  background: rgba(7, 13, 28, 0.45);
}

.signal-strip dt {
  color: var(--accent);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.signal-strip dd {
  margin: 8px 0 0;
  color: var(--text);
  font-size: 0.96rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(138, 245, 189, 0.35);
  color: var(--success);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.status-grid,
.module-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
}

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

.status-grid article,
.module-card {
  border: 1px solid rgba(119, 213, 255, 0.14);
  background: rgba(7, 13, 28, 0.58);
}

.status-grid article {
  padding: 14px;
}

.status-grid strong {
  display: block;
  margin-top: 6px;
  font-size: 1.1rem;
  text-transform: lowercase;
}

.event-log {
  position: relative;
  z-index: 1;
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.event-log div {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 12px 0;
  border-bottom: 1px solid rgba(119, 213, 255, 0.12);
}

.event-log span,
.command-row span {
  color: var(--accent-strong);
  font-size: 0.78rem;
}

.section {
  padding: 34px 0;
}

.stack {
  display: grid;
  gap: 16px;
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}

.section-heading.compact h2 {
  max-width: 14ch;
}

.comparison-columns {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.comparison-columns ul {
  margin: 12px 0 0;
  padding-left: 18px;
}

.topology-map {
  position: relative;
  z-index: 1;
  min-height: 340px;
  border: 1px solid rgba(119, 213, 255, 0.14);
  background:
    linear-gradient(rgba(119, 213, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(119, 213, 255, 0.06) 1px, transparent 1px),
    rgba(7, 13, 28, 0.56);
  background-size: 36px 36px;
}

.topology-map::before,
.topology-map::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(119, 213, 255, 0.45), transparent);
}

.topology-map::before {
  top: 64px;
  height: 208px;
}

.topology-map::after {
  top: 168px;
  left: 22%;
  width: 56%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(119, 213, 255, 0.45), transparent);
}

.node {
  position: absolute;
  padding: 10px 12px;
  border: 1px solid rgba(181, 242, 255, 0.22);
  background: rgba(7, 13, 28, 0.82);
  color: var(--accent-strong);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.76rem;
}

.core { top: 22px; left: 50%; transform: translateX(-50%); }
.upper-left { top: 118px; left: 8%; }
.upper-right { top: 118px; right: 8%; }
.lower-left { top: 218px; left: 14%; }
.lower-right { top: 218px; right: 10%; }
.bottom { bottom: 24px; left: 50%; transform: translateX(-50%); }

.command-table,
.snippet-stack,
.queue-panel,
.closing-panel,
.comparison-panel,
.topology-panel {
  background: linear-gradient(180deg, rgba(10, 19, 38, 0.92), rgba(7, 13, 28, 0.9));
}

.command-row {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 40px minmax(0, auto) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid rgba(119, 213, 255, 0.12);
}

.command-row:first-child { border-top: 0; padding-top: 0; }
.command-row code { color: var(--accent-strong); }
.command-row p { margin: 0; }

.snippet-stack {
  display: grid;
  gap: 16px;
}

.snippet-stack > div {
  position: relative;
  z-index: 1;
  border: 1px solid rgba(119, 213, 255, 0.14);
  background: rgba(6, 12, 25, 0.72);
  padding: 16px;
}

pre {
  margin: 10px 0 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: var(--text);
  font-size: 0.9rem;
}

.module-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.module-card h3 {
  margin: 8px 0 10px;
}

.queue-list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
}

.queue-list div {
  display: grid;
  grid-template-columns: 16px minmax(0, auto) minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-top: 14px;
  border-top: 1px solid rgba(119, 213, 255, 0.12);
}

.queue-list div:first-child { padding-top: 0; border-top: 0; }
.queue-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  margin-top: 6px;
  box-shadow: 0 0 14px currentColor;
}

.queue-dot.live { color: var(--success); background: var(--success); }
.queue-dot.waiting { color: var(--warning); background: var(--warning); }
.queue-dot.sync { color: var(--accent); background: var(--accent); }

@media (max-width: 1080px) {
  .hero-grid,
  .two-col,
  .layout-grid,
  .command-layout,
  .lower-grid,
  .module-grid {
    grid-template-columns: 1fr;
  }

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

  .section-heading h2,
  h2 {
    max-width: none;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 20px, 1240px);
  }

  .topbar {
    align-items: flex-start;
  }

  .hero-copy,
  .hero-dashboard,
  .comparison-panel,
  .topology-panel,
  .command-table,
  .snippet-stack,
  .module-card,
  .queue-panel,
  .closing-panel {
    padding: 18px;
  }

  h1 {
    font-size: clamp(2.6rem, 15vw, 4.2rem);
  }

  h2 {
    font-size: clamp(1.5rem, 9vw, 2.35rem);
  }

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

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

  .command-row,
  .queue-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .node {
    position: static;
    transform: none;
    margin: 10px;
  }

  .topology-map {
    min-height: 0;
    display: grid;
    padding: 10px;
    gap: 8px;
  }

  .topology-map::before,
  .topology-map::after {
    display: none;
  }

  .cta-row {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}