:root {
  --ink: #10141d;
  --panel: #1a202b;
  --panel-2: #151a24;
  --text: #ede7da;
  --muted: #a9b0c0;
  --signal: #00d7e6;
  --fault: #ff5a4d;
  --probe: #f5b83d;
  --repair: #41d982;
}

* { box-sizing: border-box; }

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon-sprite symbol {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 78% 16%, color-mix(in srgb, var(--fault) 14%, transparent), transparent 28%),
    linear-gradient(135deg, #0d1119 0%, var(--ink) 54%, #0f1720 100%);
  color: var(--text);
  font-family: "Sora", "Aptos", "Segoe UI", system-ui, sans-serif;
}

a { color: inherit; }

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

.app-shell {
  width: min(1240px, calc(100vw - 32px));
  height: calc(100dvh - 28px);
  margin: 14px auto;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: 12px;
  overflow: hidden;
}

.topbar {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 260px;
  color: var(--signal);
  font-family: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  font-size: 14px;
  font-weight: 800;
}

.brand-row img {
  width: 40px;
  height: 40px;
}

.tabs {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  min-width: 0;
}

.tab {
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid color-mix(in srgb, var(--text) 18%, transparent);
  background: color-mix(in srgb, var(--panel) 72%, transparent);
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font: 700 13px/1 "Sora", "Aptos", "Segoe UI", system-ui, sans-serif;
  cursor: pointer;
  transition: transform 180ms ease-out, border-color 180ms ease-out, background-color 180ms ease-out, color 180ms ease-out;
}

.tab-icon,
.button-icon {
  width: 16px;
  height: 16px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

.tab:hover,
.tab:focus-visible {
  border-color: color-mix(in srgb, var(--signal) 66%, transparent);
  color: var(--text);
  outline: none;
}

.tab:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--signal) 24%, transparent);
}

.tab.is-active {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
}

.hero-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px 24px;
  align-items: end;
  padding: 8px 0 4px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  max-width: 780px;
  font-size: 58px;
  line-height: 0.96;
  letter-spacing: 0;
  text-wrap: balance;
}

.lede,
.panel-copy p {
  max-width: 650px;
  color: var(--text);
  font-size: 18px;
  line-height: 1.46;
  text-wrap: pretty;
}

.hero-band .lede {
  margin-top: 12px;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--signal);
  background: var(--signal);
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  min-width: 0;
  text-align: center;
  white-space: normal;
  transition: transform 180ms ease-out, background-color 180ms ease-out, color 180ms ease-out;
}

.button.secondary {
  color: var(--text);
  background: transparent;
  border-color: color-mix(in srgb, var(--text) 35%, transparent);
}

.button.ghost {
  color: var(--signal);
  background: color-mix(in srgb, var(--panel) 74%, transparent);
  border-color: color-mix(in srgb, var(--signal) 58%, transparent);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.text-link {
  color: var(--signal);
  font-weight: 800;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.trust {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-family: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  font-size: 12px;
}

.trust span {
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--text) 18%, transparent);
  padding: 0 8px;
  background: color-mix(in srgb, var(--panel) 58%, transparent);
}

.stage {
  min-height: 0;
  min-width: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--signal) 38%, transparent);
  background: color-mix(in srgb, var(--panel-2) 88%, transparent);
}

.panel {
  position: absolute;
  inset: 0;
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(260px, 0.74fr) minmax(0, 1.26fr);
  gap: clamp(18px, 3vw, 38px);
  align-items: center;
  padding: clamp(18px, 3vw, 34px);
  opacity: 0;
  transform: translateX(28px);
  filter: blur(6px);
  pointer-events: none;
  transition: opacity 210ms ease-out, transform 210ms ease-out, filter 210ms ease-out;
}

.panel > * {
  min-width: 0;
}

.panel.is-active {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
  pointer-events: auto;
}

.panel[hidden] {
  display: grid;
  visibility: hidden;
}

.panel-copy {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.panel-copy.compact {
  align-self: start;
}

.kicker {
  color: var(--signal);
  font-family: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  font-size: 13px;
  font-weight: 800;
}

h2 {
  max-width: 620px;
  font-size: 38px;
  line-height: 1.02;
  letter-spacing: 0;
  overflow-wrap: anywhere;
  text-wrap: balance;
}

code {
  color: var(--repair);
  font-family: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
}

.terminal {
  min-width: 0;
  max-height: 100%;
  background: var(--panel);
  border: 2px solid color-mix(in srgb, var(--signal) 64%, transparent);
  padding: clamp(16px, 2.5vw, 28px);
  font-family: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  overflow: hidden;
  position: relative;
  isolation: isolate;
}

.terminal::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--signal) 13%, transparent), transparent 18%),
    radial-gradient(circle at 78% 18%, color-mix(in srgb, var(--fault) 18%, transparent), transparent 24%);
  opacity: 0.9;
  pointer-events: none;
  z-index: -1;
}

.terminal::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  pointer-events: none;
}

.terminal pre {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.install-terminal pre {
  font-size: 16px;
}

.terminal-caption {
  margin-top: 12px;
  color: var(--muted);
  font-family: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  font-size: 12px;
  line-height: 1.35;
}

.signal { color: var(--signal); }
.fault { color: var(--fault); }
.probe { color: var(--probe); }
.repair { color: var(--repair); }

.demo-stack {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  align-items: stretch;
}

.demo-frame {
  min-width: 0;
  height: 100%;
  min-height: 0;
  margin: 0;
  border: 1px solid color-mix(in srgb, var(--signal) 40%, transparent);
  background: var(--panel);
  overflow: hidden;
}

.demo-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.evidence-grid,
.verdicts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.evidence-grid div,
.verdicts div {
  min-height: 146px;
  display: grid;
  align-content: start;
  gap: 10px;
  border: 1px solid color-mix(in srgb, var(--text) 16%, transparent);
  background: color-mix(in srgb, var(--panel) 82%, var(--ink));
  padding: 18px;
}

.evidence-grid b,
.verdicts b {
  color: var(--signal);
}

.evidence-grid span,
.verdicts span,
.step em {
  color: var(--muted);
  font-style: normal;
  line-height: 1.4;
}

.verdicts {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  font-family: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
}

.verdicts div:nth-child(2) b,
.verdicts div:nth-child(3) b { color: var(--probe); }
.verdicts div:nth-child(4) b { color: var(--fault); }

.ladder {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.step {
  min-height: 138px;
  display: grid;
  align-content: start;
  gap: 8px;
  border-top: 3px solid var(--probe);
  background: var(--panel);
  padding: 14px;
}

.step span {
  color: var(--probe);
  font-family: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  font-weight: 800;
}

.step b {
  color: var(--text);
}

.step.final {
  border-color: var(--fault);
}

.step.final span {
  color: var(--fault);
}

.status-line {
  min-height: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-family: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  font-size: 12px;
}

@media (max-width: 980px) {
  .app-shell {
    width: min(100vw - 24px, 900px);
    height: calc(100dvh - 20px);
    margin: 10px auto;
    gap: 10px;
  }

  .topbar {
    align-items: start;
    flex-direction: column;
    min-height: 0;
  }

  .tabs {
    width: 100%;
    justify-content: start;
    flex-wrap: wrap;
  }

  .tab {
    flex: 1 1 auto;
    min-width: 98px;
  }

  .hero-band {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  h1 {
    font-size: 42px;
    line-height: 1;
  }

  .lede,
  .panel-copy p {
    font-size: 16px;
  }

  .actions {
    justify-content: start;
  }

  .panel {
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
    gap: 14px;
  }

  .panel-copy {
    gap: 8px;
  }

  h2 {
    font-size: 30px;
  }

  .terminal pre {
    font-size: 12px;
    line-height: 1.36;
  }

  .terminal-caption {
    font-size: 11px;
  }

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

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

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

  .step {
    min-height: 86px;
    padding: 12px;
  }
}

@media (max-width: 560px) {
  .app-shell {
    width: min(360px, calc(100vw - 32px));
    max-width: min(360px, calc(100vw - 32px));
    height: calc(100dvh - 16px);
    margin: 8px auto 8px 8px;
    padding: 0;
    gap: 6px;
  }

  .brand-row {
    min-width: 0;
    font-size: 12px;
  }

  .brand-row img {
    width: 34px;
    height: 34px;
  }

  .tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .tab {
    min-width: 0;
    min-height: 34px;
    padding: 0 6px;
    font-size: 11px;
    gap: 5px;
  }

  .tab-icon {
    width: 13px;
    height: 13px;
  }

  h1 {
    font-size: 27px;
    line-height: 1.03;
    max-width: 13ch;
  }

  .hero-band .lede {
    display: none;
  }

  .actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .button.secondary {
    display: none;
  }

  .button {
    min-height: 36px;
    padding: 0 8px;
    font-size: 12px;
  }

  .button-icon {
    width: 14px;
    height: 14px;
  }

  .trust {
    gap: 6px;
    font-size: 11px;
  }

  .trust span {
    min-height: 24px;
    padding: 0 6px;
  }

  .panel {
    min-width: 0;
    padding: 10px;
    gap: 7px;
  }

  .kicker {
    font-size: 11px;
  }

  h2 {
    max-width: 24ch;
    font-size: 20px;
    line-height: 1.04;
    word-break: break-word;
  }

  .panel-copy p {
    max-width: 32ch;
    font-size: 12px;
    line-height: 1.25;
  }

  .terminal {
    max-width: 100%;
    padding: 9px;
  }

  .terminal::after {
    inset: 6px;
  }

  .terminal pre {
    font-size: 8.5px;
    line-height: 1.16;
    max-width: 100%;
    word-break: break-word;
  }

  .terminal-caption {
    margin-top: 8px;
    font-size: 8.5px;
    line-height: 1.2;
  }

  .demo-stack {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .evidence-grid,
  .verdicts {
    grid-template-columns: 1fr;
    gap: 8px;
  }

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

  .evidence-grid div,
  .verdicts div {
    min-height: 0;
    padding: 9px;
    gap: 4px;
    font-size: 11px;
  }

  .ladder {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .step {
    min-height: 0;
    padding: 9px;
    gap: 3px;
    font-size: 12px;
  }

  .status-line {
    font-size: 10px;
  }

  .status-line span:last-child {
    display: none;
  }
}

@media (max-height: 720px) {
  h1 {
    font-size: 36px;
  }

  .hero-band .lede {
    display: none;
  }

  .topbar {
    min-height: 0;
  }

  .panel {
    padding-top: 14px;
    padding-bottom: 14px;
  }

  h2 {
    font-size: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .panel {
    filter: none;
    transform: none;
  }
}