:root {
  --bg: #02070a;
  --panel: rgba(4, 17, 22, .86);
  --panel-solid: #061116;
  --text: #e9fbff;
  --muted: #94adb5;
  --cyan: #41d8ff;
  --cyan-soft: rgba(65, 216, 255, .18);
  --green: #9dff57;
  --grid: rgba(65, 216, 255, .13);
  --danger: #ff4d4d;
}

* { box-sizing: border-box }
html { scroll-behavior: smooth }
body {
  margin: 0;
  overflow-x: hidden;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    radial-gradient(circle at 68% 12%, rgba(65, 216, 255, .12), transparent 34%),
    var(--bg);
  background-size: 72px 72px, 72px 72px, auto, auto;
  color: var(--text);
  font-family: "Arial Narrow", "Roboto Condensed", "Segoe UI", sans-serif;
  letter-spacing: 0;
}

a { color: inherit; text-decoration: none }
img, svg { display: block; max-width: 100% }
button { font: inherit }

.command-rail {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(12px, 3vw, 34px);
  padding: 12px clamp(14px, 4vw, 52px);
  background: rgba(2, 7, 10, .94);
  border-bottom: 1px solid rgba(65, 216, 255, .34);
  backdrop-filter: blur(14px);
}

.cell-id {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: Consolas, "Courier New", monospace;
  font-weight: 900;
}

.rail-nav {
  display: flex;
  justify-content: center;
  gap: clamp(10px, 3vw, 36px);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  color: var(--muted);
}

.rail-nav a {
  padding: 8px 0;
  border-bottom: 1px solid transparent;
}

.rail-nav a:hover,
.rail-nav a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  outline: 0;
}

.rail-command,
.cmd-primary,
.cmd-secondary,
.cycle-buttons button,
.grip-panel button,
.command-grid button {
  min-height: 44px;
  border: 1px solid var(--cyan);
  color: var(--text);
  background:
    linear-gradient(135deg, transparent 0 14px, rgba(65, 216, 255, .16) 14px),
    rgba(2, 7, 10, .8);
  padding: 0 18px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 50%, calc(100% - 16px) 100%, 0 100%, 10px 50%);
}

.rail-command,
.cmd-primary,
.cycle-buttons .is-active,
.grip-panel .is-active {
  background:
    linear-gradient(135deg, transparent 0 14px, rgba(157, 255, 87, .32) 14px),
    #11341b;
  border-color: var(--green);
  color: var(--green);
}

.hero-cell {
  position: relative;
  min-height: calc(100vh - 71px);
  overflow: hidden;
  display: grid;
  align-items: end;
  padding: clamp(92px, 12vw, 160px) clamp(16px, 4vw, 58px) clamp(36px, 6vw, 72px);
}

.hero-cell > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-cell::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, .68), rgba(0, 0, 0, .22) 54%, rgba(0, 0, 0, .58)),
    linear-gradient(0deg, rgba(2, 7, 10, .92), transparent 52%);
}

.scan-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, black, transparent 82%);
}

.hero-command-card {
  position: relative;
  z-index: 2;
  width: min(940px, 100%);
  padding: clamp(18px, 4vw, 34px);
  border-left: 2px solid var(--cyan);
  background: linear-gradient(90deg, rgba(2, 7, 10, .82), rgba(2, 7, 10, .14));
}

.tech-label,
.tech-code {
  display: inline-flex;
  color: var(--cyan);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.tech-code { color: var(--green) }

.outline-title {
  margin: 10px 0 18px;
  max-width: 920px;
  font-family: Impact, "Arial Black", sans-serif;
  font-size: clamp(52px, 9vw, 150px);
  line-height: .88;
  color: transparent;
  -webkit-text-stroke: 1.6px var(--text);
  text-transform: uppercase;
}

.outline-title.small {
  font-size: clamp(36px, 6vw, 92px);
}

.terminal-caption,
.spec-type,
p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 1.7vw, 22px);
  line-height: 1.35;
  font-weight: 700;
}

.command-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.input-stack {
  position: absolute;
  z-index: 3;
  right: clamp(16px, 4vw, 58px);
  bottom: clamp(24px, 6vw, 78px);
  display: grid;
  gap: 12px;
  width: min(380px, calc(100% - 32px));
  padding: 18px;
  border: 1px solid rgba(65, 216, 255, .42);
  background: rgba(2, 7, 10, .7);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  text-transform: uppercase;
}

section {
  padding: clamp(54px, 8vw, 118px) clamp(16px, 5vw, 76px);
}

.spec-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  padding-top: 1px;
  padding-bottom: 1px;
  background: rgba(65, 216, 255, .48);
}

.strip-node,
.kpi-board div {
  min-height: 190px;
  padding: clamp(18px, 3vw, 28px);
  background: rgba(2, 7, 10, .92);
}

.visual-route {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(56px, 8vw, 112px);
  background:
    linear-gradient(135deg, rgba(65, 216, 255, .11), transparent 38%),
    linear-gradient(180deg, rgba(2, 7, 10, .96), rgba(4, 17, 22, .76));
}

.visual-route-head {
  display: grid;
  grid-template-columns: minmax(240px, .7fr) minmax(320px, 1fr);
  gap: clamp(20px, 5vw, 72px);
  align-items: end;
  margin-bottom: clamp(22px, 5vw, 58px);
}

.visual-route-head h2 {
  margin: 8px 0 0;
  font-family: Impact, "Arial Black", sans-serif;
  font-size: clamp(42px, 7vw, 112px);
  line-height: .88;
  color: transparent;
  -webkit-text-stroke: 1.3px var(--text);
  text-transform: uppercase;
}

.visual-route-grid {
  display: grid;
  grid-template-columns: minmax(320px, 1.34fr) minmax(220px, .66fr);
  grid-auto-rows: minmax(260px, auto);
  gap: clamp(12px, 2vw, 20px);
}

.visual-card {
  position: relative;
  min-height: 320px;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(65, 216, 255, .36);
  background: #02070a;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 28px 100%, 0 calc(100% - 28px));
}

.visual-card-wide {
  grid-row: span 2;
}

.visual-card img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  transform: scale(1.01);
}

.visual-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(0deg, rgba(2, 7, 10, .88), transparent 54%),
    linear-gradient(90deg, rgba(2, 7, 10, .5), transparent 40%);
  pointer-events: none;
}

.visual-card figcaption {
  position: absolute;
  left: clamp(14px, 2vw, 24px);
  right: clamp(14px, 2vw, 24px);
  bottom: clamp(14px, 2vw, 24px);
  z-index: 2;
  display: grid;
  gap: 8px;
}

.visual-card figcaption b {
  max-width: 520px;
  font-family: Consolas, "Courier New", monospace;
  font-size: clamp(15px, 1.5vw, 20px);
  line-height: 1.2;
  color: var(--text);
  text-transform: uppercase;
}

.metric-type {
  display: block;
  margin: 18px 0 10px;
  font-family: Impact, "Arial Black", sans-serif;
  font-size: clamp(34px, 5vw, 68px);
  line-height: .9;
  text-transform: uppercase;
}

.cell-schematic {
  display: grid;
  grid-template-columns: minmax(260px, .7fr) minmax(360px, 1.3fr);
  gap: clamp(24px, 5vw, 78px);
  align-items: center;
}

.schematic-board {
  border: 1px solid rgba(65, 216, 255, .42);
  background: rgba(2, 7, 10, .76);
  padding: clamp(12px, 3vw, 28px);
}

.schematic-board svg {
  width: 100%;
  color: var(--cyan);
}

.grid-lines path {
  stroke: rgba(65, 216, 255, .18);
  stroke-width: 1;
}

.flow-lines path,
.nodes rect,
.nodes circle {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 3;
}

.labels text {
  fill: var(--text);
  font-family: Consolas, "Courier New", monospace;
  font-size: 22px;
  font-weight: 900;
}

.cycle-lab {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(260px, .55fr);
  gap: clamp(22px, 5vw, 64px);
  align-items: stretch;
  background: linear-gradient(90deg, rgba(65, 216, 255, .08), transparent);
}

.cycle-console,
.cycle-output,
.grip-panel,
.transfer-panel,
.image-diagnostic figure {
  border: 1px solid rgba(65, 216, 255, .36);
  background: var(--panel);
}

.cycle-console {
  padding: clamp(22px, 4vw, 40px);
}

.cycle-console h2,
.transfer-panel h2 {
  max-width: 900px;
  margin: 12px 0 18px;
  font-family: Impact, "Arial Black", sans-serif;
  font-size: clamp(42px, 7vw, 116px);
  line-height: .88;
  text-transform: uppercase;
}

.cycle-buttons,
.grip-panel,
.command-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.cycle-output {
  display: grid;
  align-content: end;
  gap: 20px;
  padding: clamp(22px, 4vw, 40px);
}

.cycle-output b,
.command-grid output,
.grip-panel output {
  display: block;
  font-family: Consolas, "Courier New", monospace;
  color: var(--green);
  font-size: clamp(18px, 2.2vw, 28px);
  line-height: 1.2;
}

.image-diagnostic {
  padding-top: clamp(44px, 7vw, 92px);
  padding-bottom: clamp(44px, 7vw, 92px);
}

.image-diagnostic figure {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(300px, 1.2fr) minmax(240px, .48fr);
  gap: clamp(18px, 4vw, 48px);
  align-items: end;
  padding: clamp(12px, 2vw, 18px);
}

.image-diagnostic img {
  width: 100%;
  height: clamp(320px, 44vw, 580px);
  object-fit: cover;
  clip-path: polygon(0 0, 96% 0, 100% 14%, 100% 100%, 4% 100%, 0 86%);
}

.image-diagnostic figcaption {
  display: grid;
  gap: 14px;
  padding: 14px;
}

.image-diagnostic figcaption b {
  font-family: Impact, "Arial Black", sans-serif;
  font-size: clamp(32px, 4vw, 58px);
  line-height: .95;
  text-transform: uppercase;
}

.grip-section {
  display: grid;
  grid-template-columns: minmax(260px, .9fr) minmax(320px, 1.1fr);
  gap: clamp(20px, 5vw, 66px);
  align-items: center;
}

.grip-panel {
  padding: clamp(20px, 4vw, 34px);
}

.kpi-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(157, 255, 87, .48);
  padding-top: 1px;
  padding-bottom: 1px;
}

.transfer-panel {
  display: grid;
  grid-template-columns: minmax(280px, .85fr) minmax(300px, 1fr);
  gap: clamp(22px, 5vw, 66px);
  align-items: start;
  margin: clamp(32px, 6vw, 70px) clamp(16px, 5vw, 76px);
  padding: clamp(22px, 5vw, 48px);
}

.command-grid {
  margin-top: 0;
}

.command-grid output {
  width: 100%;
  min-height: 58px;
  padding: 16px;
  border: 1px solid rgba(157, 255, 87, .5);
}

.cell-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(16px, 5vw, 76px);
  border-top: 1px solid rgba(65, 216, 255, .32);
  color: var(--muted);
}

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .command-rail {
    grid-template-columns: auto 1fr;
  }
  .rail-command {
    grid-column: 1 / -1;
    justify-self: start;
  }
  .rail-nav {
    justify-content: flex-start;
    overflow-x: auto;
  }
  .input-stack {
    position: relative;
    right: auto;
    bottom: auto;
    margin-top: 24px;
  }
  .hero-cell {
    min-height: 760px;
    align-items: center;
  }
  .spec-strip,
  .visual-route-head,
  .visual-route-grid,
  .cell-schematic,
  .cycle-lab,
  .image-diagnostic figure,
  .grip-section,
  .kpi-board,
  .transfer-panel {
    grid-template-columns: 1fr;
  }
  .transfer-panel {
    margin-inline: 16px;
  }
  .visual-card-wide {
    grid-row: auto;
  }
}

@media (max-width: 520px) {
  .command-rail {
    padding: 10px 12px;
  }
  .cell-id {
    width: 40px;
    height: 40px;
  }
  .rail-nav {
    gap: 14px;
    font-size: 11px;
  }
  .hero-cell {
    min-height: 680px;
    padding: 78px 14px 32px;
  }
  .outline-title {
    font-size: clamp(46px, 16vw, 74px);
    -webkit-text-stroke-width: 1px;
  }
  .outline-title.small {
    font-size: clamp(34px, 12vw, 58px);
  }
  .command-row a,
  .cycle-buttons button,
  .grip-panel button,
  .command-grid button {
    width: 100%;
  }
  section {
    padding: 44px 14px;
  }
  .cycle-console h2,
  .transfer-panel h2 {
    font-size: clamp(38px, 14vw, 66px);
  }
  .terminal-caption,
  .spec-type,
  p {
    font-size: 16px;
  }
  .image-diagnostic img {
    height: 280px;
  }
  .visual-card,
  .visual-card img {
    min-height: 260px;
  }
}

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