:root {
  --void: #020604;
  --panel: #061008;
  --panel-raised: #0a160c;
  --phosphor: #72ff68;
  --phosphor-soft: #b5ffaf;
  --phosphor-dim: #4f8b51;
  --line: #2f6934;
  --line-dim: #18391d;
  --amber: #ffb000;
  --amber-dim: #8f6509;
  --danger: #ff6457;
  --white: #e8ffe5;
  --muted: #88a989;
  color: var(--phosphor-soft);
  background: var(--void);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--void);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--phosphor-soft);
  background: var(--void);
}

button,
input,
textarea {
  font: inherit;
}

button,
a,
input,
textarea,
summary {
  outline-offset: 4px;
}

:focus-visible {
  outline: 2px solid var(--amber);
}

a {
  color: inherit;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: 12px;
  left: 12px;
  padding: 10px 13px;
  border: 1px solid var(--amber);
  color: var(--void);
  background: var(--amber);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
footer {
  width: min(1600px, calc(100% - 32px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: var(--phosphor);
  font-size: clamp(0.78rem, 1.4vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 40px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--phosphor);
  color: var(--void);
  background: var(--phosphor);
  font-size: 0.74rem;
  letter-spacing: -0.08em;
}

.network-strip {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 38px);
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  white-space: nowrap;
}

.network-strip span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.network-strip i {
  width: 8px;
  height: 8px;
  background: var(--phosphor);
  box-shadow: 0 0 10px rgba(114, 255, 104, 0.7);
}

.terminal-shell {
  width: min(1600px, calc(100% - 32px));
  margin: 18px auto 0;
  border: 1px solid var(--line);
  box-shadow: 0 0 0 4px #050b06;
}

.terminal-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(310px, 0.65fr);
  gap: 28px;
  align-items: end;
  padding: clamp(18px, 3vw, 34px);
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.prompt-line {
  margin: 0 0 9px;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.09em;
}

.prompt-line::after {
  display: inline-block;
  width: 0.64em;
  height: 1em;
  margin-left: 8px;
  background: var(--phosphor);
  content: "";
  vertical-align: -0.15em;
  animation: cursor-blink 1.1s steps(1, end) infinite;
}

@keyframes cursor-blink {
  0%,
  46% {
    opacity: 1;
  }
  47%,
  100% {
    opacity: 0;
  }
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 10px;
  color: var(--phosphor);
  font-size: clamp(1.35rem, 3.4vw, 2.65rem);
  line-height: 1;
  letter-spacing: 0.02em;
}

.terminal-intro > div > p:last-child {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(0.78rem, 1.2vw, 0.92rem);
  line-height: 1.6;
}

.boundary-list {
  margin: 0;
  border: 1px solid var(--line-dim);
}

.boundary-list div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 9px 11px;
  border-bottom: 1px solid var(--line-dim);
}

.boundary-list div:last-child {
  border-bottom: 0;
}

.boundary-list dt,
.boundary-list dd {
  font-size: 0.67rem;
  line-height: 1.4;
}

.boundary-list dt {
  color: var(--muted);
}

.boundary-list dd {
  margin: 0;
  color: var(--phosphor);
  text-align: right;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.18fr) minmax(0, 1fr);
  background: var(--panel);
}

.step {
  min-width: 0;
  min-height: 500px;
  padding: clamp(20px, 2.4vw, 34px);
  border-right: 1px solid var(--line);
}

.step:last-child {
  border-right: 0;
}

.step-heading {
  display: flex;
  min-height: 62px;
  margin: calc(clamp(20px, 2.4vw, 34px) * -1) calc(clamp(20px, 2.4vw, 34px) * -1) 24px;
  padding: 14px clamp(20px, 2.4vw, 34px);
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-raised);
}

.step-heading h2 {
  margin: 0;
  color: var(--phosphor);
  font-size: clamp(0.9rem, 1.4vw, 1.12rem);
  line-height: 1.25;
  letter-spacing: 0.04em;
}

.step-state {
  color: var(--muted);
  font-size: 0.58rem;
  line-height: 1.35;
  text-align: right;
}

.step-state[data-state="success"],
.step-state[data-state="armed"] {
  color: var(--phosphor);
}

.step-state[data-state="error"] {
  color: var(--danger);
}

.step-state-amber,
.step-state[data-state="armed"] {
  color: var(--amber);
}

.step-copy,
.field-help,
.empty-readout,
.inline-status,
.broadcast-lock > p,
.irreversible {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.55;
}

.step-copy {
  min-height: 3.4em;
  margin-bottom: 18px;
}

.terminal-button {
  width: 100%;
  min-height: 46px;
  padding: 11px 14px;
  border: 1px solid var(--phosphor);
  border-radius: 0;
  color: var(--phosphor);
  background: transparent;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.terminal-button:not(:disabled):hover {
  color: var(--void);
  background: var(--phosphor);
}

.terminal-button:disabled {
  border-color: var(--phosphor-dim);
  color: var(--phosphor-dim);
  cursor: not-allowed;
}

.terminal-button-amber {
  border-color: var(--amber);
  color: var(--amber);
}

.terminal-button-amber:not(:disabled):hover {
  color: var(--void);
  background: var(--amber);
}

.terminal-button-amber:disabled {
  border-color: var(--amber-dim);
  color: var(--amber-dim);
}

.empty-readout {
  margin: 22px 0 0;
  padding: 13px 0;
  border-top: 1px solid var(--line-dim);
  border-bottom: 1px solid var(--line-dim);
}

.identity-card {
  margin-top: 20px;
  border-top: 1px solid var(--line);
}

.public-readout {
  display: grid;
  gap: 11px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-dim);
}

.readout-label {
  color: var(--muted);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

.public-readout code,
.raw-content code,
.raw-content pre {
  overflow-wrap: anywhere;
  color: var(--phosphor-soft);
  font: 600 0.68rem/1.6 inherit;
}

.raw-content pre {
  max-height: 150px;
  margin: 8px 0 16px;
  overflow: auto;
  white-space: pre-wrap;
}

.inline-button {
  width: max-content;
  min-height: 36px;
  padding: 7px 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  border-radius: 0;
  color: var(--phosphor);
  background: transparent;
  cursor: pointer;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.raw-panel {
  border-bottom: 1px solid var(--line-dim);
}

.raw-panel summary {
  padding: 12px 0;
  color: var(--phosphor);
  cursor: pointer;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  list-style: none;
}

.raw-panel summary::-webkit-details-marker {
  display: none;
}

.raw-panel summary::before {
  margin-right: 8px;
  content: "[+]";
}

.raw-panel[open] summary::before {
  content: "[-]";
}

.raw-content {
  display: grid;
  gap: 9px;
  padding: 0 0 15px 25px;
}

.raw-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.inline-status {
  min-height: 2.2em;
  margin: 13px 0 0;
}

.inline-status[data-state="success"] {
  color: var(--phosphor);
}

.inline-status[data-state="error"],
.label-row output[data-state="error"] {
  color: var(--danger);
}

fieldset {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  border: 0;
}

fieldset:disabled {
  opacity: 0.42;
}

.field {
  display: grid;
  gap: 7px;
}

.field label,
.label-row output {
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.label-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.room-field {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  background: var(--void);
}

.room-field span {
  padding-left: 11px;
  color: var(--phosphor-dim);
}

.room-field input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--phosphor-soft);
  background: var(--void);
  caret-color: var(--phosphor);
}

.room-field input {
  padding: 10px 9px 10px 3px;
  border: 0;
}

textarea {
  min-height: 124px;
  padding: 12px;
  resize: vertical;
  line-height: 1.5;
}

textarea::placeholder {
  color: var(--phosphor-dim);
}

.field-help {
  margin: 0;
}

.signed-receipt {
  margin-top: 18px;
  border-top: 1px solid var(--phosphor);
}

.receipt-status {
  margin: 0;
  padding: 11px 0;
  color: var(--phosphor);
  font-size: 0.72rem;
  font-weight: 700;
}

.receipt-summary {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 15px;
  padding: 10px 0;
  border-top: 1px solid var(--line-dim);
  color: var(--muted);
  font-size: 0.64rem;
}

.receipt-summary b {
  color: var(--phosphor-soft);
  font-weight: 500;
}

.public-warning {
  margin-bottom: 22px;
  padding: 14px;
  border: 1px solid var(--amber-dim);
  color: var(--amber);
}

.public-warning strong {
  display: block;
  margin-bottom: 9px;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.public-warning p {
  margin-bottom: 0;
  color: #c6a75f;
  font-size: 0.7rem;
  line-height: 1.55;
}

.broadcast-lock {
  margin-bottom: 18px;
  padding: 14px;
  border: 1px solid var(--line-dim);
}

.confirm-row {
  display: grid;
  grid-template-columns: 19px 1fr;
  gap: 10px;
  align-items: start;
  color: var(--white);
  cursor: pointer;
  font-size: 0.72rem;
  line-height: 1.5;
}

.confirm-row input {
  width: 17px;
  height: 17px;
  margin: 1px 0 0;
  border-radius: 0;
  accent-color: var(--amber);
}

.broadcast-lock > p {
  margin: 10px 0 0 29px;
}

.irreversible {
  margin: 10px 0 0;
  color: var(--amber);
  text-align: center;
  letter-spacing: 0.05em;
}

.system-log {
  border-top: 1px solid var(--line);
  background: var(--panel);
}

.system-log header {
  display: flex;
  min-height: 46px;
  padding: 0 clamp(20px, 2.4vw, 34px);
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line-dim);
  background: var(--panel-raised);
}

.system-log h2,
.system-log header span {
  margin: 0;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}

.system-log h2 {
  color: var(--phosphor);
}

.system-log header span {
  color: var(--muted);
}

.system-log ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px 30px;
  margin: 0;
  padding: 16px clamp(20px, 2.4vw, 34px) 18px;
  list-style: none;
}

.system-log li {
  min-width: 0;
  color: var(--muted);
  font-size: 0.66rem;
  line-height: 1.45;
}

.system-log li span {
  color: var(--phosphor);
}

.system-log li[data-state="success"] {
  color: var(--phosphor);
}

.system-log li[data-state="armed"] {
  color: var(--amber);
}

.system-log li[data-state="error"] {
  color: var(--danger);
}

.protocol-note {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(320px, 1.2fr) auto;
  gap: 24px 40px;
  align-items: center;
  padding: clamp(22px, 3vw, 38px);
  border-top: 1px solid var(--line);
  background: #040b05;
}

.protocol-note > div > span {
  color: var(--amber);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

.protocol-note h2 {
  margin: 7px 0 0;
  color: var(--white);
  font-size: clamp(0.92rem, 1.7vw, 1.3rem);
  line-height: 1.4;
}

.protocol-note > p {
  margin: 0;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.6;
}

.protocol-note nav {
  display: grid;
  gap: 10px;
}

.protocol-note a {
  color: var(--phosphor);
  font-size: 0.66rem;
  text-underline-offset: 4px;
  white-space: nowrap;
}

footer {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
}

@media (max-width: 1080px) {
  .workspace {
    grid-template-columns: 1fr;
  }

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

  .step:last-child {
    border-bottom: 0;
  }

  .step-copy {
    min-height: 0;
  }

  .protocol-note {
    grid-template-columns: 1fr 1fr;
  }

  .protocol-note nav {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, max-content);
  }
}

@media (max-width: 720px) {
  .site-header,
  footer,
  .terminal-shell {
    width: min(100% - 18px, 1600px);
  }

  .site-header {
    min-height: 58px;
  }

  .brand > span:last-child {
    max-width: 158px;
    line-height: 1.35;
  }

  .network-strip {
    display: grid;
    gap: 5px;
    justify-items: end;
    font-size: 0.56rem;
  }

  .network-strip span:last-child {
    display: none;
  }

  .terminal-shell {
    margin-top: 9px;
  }

  .terminal-intro {
    grid-template-columns: 1fr;
  }

  .boundary-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .boundary-list div {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4px;
    border-right: 1px solid var(--line-dim);
    border-bottom: 0;
  }

  .boundary-list div:last-child {
    border-right: 0;
  }

  .boundary-list dd {
    text-align: left;
  }

  .step-heading {
    align-items: flex-start;
  }

  .system-log ul {
    grid-template-columns: 1fr;
  }

  .protocol-note {
    grid-template-columns: 1fr;
  }

  .protocol-note nav {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  footer {
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 6px;
  }
}

@media (max-width: 430px) {
  .boundary-list {
    grid-template-columns: 1fr;
  }

  .boundary-list div {
    grid-template-columns: 1fr auto;
    border-right: 0;
    border-bottom: 1px solid var(--line-dim);
  }

  .boundary-list div:last-child {
    border-bottom: 0;
  }

  .boundary-list dd {
    text-align: right;
  }

  .step-heading {
    display: grid;
  }

  .step-state {
    text-align: left;
  }
}

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

  .prompt-line::after {
    animation: none;
  }
}