:root {
  --carbon: #111316;
  --carbon-lift: #1c2025;
  --paper: #f4f0e8;
  --paper-deep: #e6e0d5;
  --field: #fffdf8;
  --signal: #ff5a3d;
  --signal-deep: #d83b22;
  --muted-dark: #bebab2;
  --muted-light: #5e5b55;
  --line-dark: rgba(244, 240, 232, .17);
  --line-light: rgba(17, 19, 22, .2);
  --display: "IBM Plex Sans Condensed", "Arial Narrow", Arial, sans-serif;
  --body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --error: #a6261c;
  --ok: #176b38;
}

html { background: var(--carbon); scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  display: block;
  padding: 0;
  color: var(--paper);
  background: var(--carbon);
  font-family: var(--body);
  line-height: 1.55;
}
button, input, select { font: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 3px;
}
.signup-header {
  border-bottom: 1px solid var(--line-dark);
  background: var(--carbon);
}
.signup-nav {
  width: min(100% - 40px, 1320px);
  min-height: 82px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.signup-nav img { display: block; width: 210px; }
.back-home {
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
}
.back-home:hover { color: var(--signal); }
.signup-shell {
  width: min(100% - 40px, 1320px);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(300px, .72fr) minmax(520px, 1.28fr);
  align-items: start;
  gap: clamp(44px, 7vw, 104px);
  padding: clamp(56px, 7vw, 100px) 0 120px;
}
.signup-intro, .signup-form-panel { min-width: 0; }
.signup-intro { position: sticky; top: 42px; }
.kicker {
  margin: 0;
  color: var(--signal);
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.signup-intro h1 {
  max-width: 100%;
  margin: 20px 0 26px;
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(3.7rem, 5vw, 5.25rem);
  font-weight: 700;
  letter-spacing: -.055em;
  line-height: .84;
  text-transform: uppercase;
}
.signup-intro h1 span { display: block; color: var(--signal); }
.intro-copy { max-width: 31rem; margin: 0; color: var(--muted-dark); font-size: 1.02rem; }
.dispatch-steps { list-style: none; margin: 46px 0 0; padding: 0; border-top: 1px solid var(--line-dark); counter-reset: step; }
.dispatch-steps li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) auto;
  gap: 12px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line-dark);
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: .74rem;
  counter-increment: step;
}
.dispatch-steps li::before { content: "0" counter(step); color: var(--signal); }
.dispatch-steps strong { color: var(--paper); font-weight: 500; }
.dispatch-steps span { color: #77736d; }
.entity-note {
  margin-top: 34px;
  padding-left: 16px;
  border-left: 3px solid var(--signal);
  color: #8d8982;
  font-family: var(--mono);
  font-size: .68rem;
  line-height: 1.7;
}
.signup-form-panel {
  color: var(--carbon);
  background: var(--paper);
  border-radius: 3px;
}
.form-header { padding: clamp(28px, 5vw, 54px); border-bottom: 1px solid var(--line-light); }
.form-header .form-count { color: var(--signal-deep); font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; }
.form-header h2 {
  margin: 14px 0 12px;
  font-family: var(--display);
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  letter-spacing: -.04em;
  line-height: .95;
  text-transform: uppercase;
}
.form-header p { max-width: 42rem; margin: 0; color: var(--muted-light); }
#form { padding: 0 clamp(28px, 5vw, 54px) clamp(34px, 5vw, 56px); }
.form-section { padding: 42px 0; border-bottom: 1px solid var(--line-light); }
.form-section:last-of-type { border-bottom: 0; padding-bottom: 10px; }
.section-title { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; margin-bottom: 22px; }
.section-title h3 { margin: 0; font-family: var(--display); font-size: 1.45rem; text-transform: uppercase; }
.section-title span { color: var(--muted-light); font-family: var(--mono); font-size: .66rem; letter-spacing: .08em; text-transform: uppercase; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; }
.field.full { grid-column: 1 / -1; }
.field label {
  display: block;
  margin: 0 0 7px;
  color: var(--carbon);
  font-size: .78rem;
  font-weight: 600;
}
.field input, .field select {
  width: 100%;
  min-height: 50px;
  padding: 12px 13px;
  border: 1px solid var(--line-light);
  border-radius: 3px;
  color: var(--carbon);
  background: var(--field);
  font-size: 1rem;
}
.field input:focus, .field select:focus { border-color: var(--signal); outline: 2px solid var(--signal); outline-offset: 0; }
.hint { margin: 6px 0 0; color: var(--muted-light); font-size: .72rem; }
.version-band {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  margin-bottom: 24px;
  padding: 16px;
  border: 1px solid var(--signal);
  background: rgba(255, 90, 61, .05);
  font-size: .8rem;
}
.version-band strong { color: var(--signal-deep); font-family: var(--mono); font-size: .7rem; text-transform: uppercase; }
.document-status { list-style: none; margin: 0 0 18px; padding: 0; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line-light); }
.document-status li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 46px;
  padding: 10px 12px 10px 0;
  border-bottom: 1px solid var(--line-light);
  font-family: var(--mono);
  font-size: .68rem;
}
.document-status li:nth-child(odd) { border-right: 1px solid var(--line-light); }
.document-status li:nth-child(even) { padding-left: 12px; }
.document-status a { color: var(--carbon); text-decoration-color: var(--signal); }
.doc-state { color: var(--muted-light); }
.doc-state.ready { color: var(--ok); }
.doc-state.failed { color: var(--error); }
#licbox {
  max-height: 13rem;
  overflow-y: auto;
  padding: 18px;
  border: 1px solid var(--line-light);
  border-radius: 3px;
  color: var(--carbon);
  background: var(--field);
  font-family: var(--body);
  font-size: .76rem;
  line-height: 1.55;
  white-space: pre-wrap;
  transition: max-height .18s ease;
}
#licbox.expanded { max-height: 36rem; }
.licrow { display: flex; justify-content: space-between; gap: 16px; margin-top: 10px; }
.licrow a, .licrow button {
  width: auto;
  min-height: 0;
  margin: 0;
  padding: 0;
  border: 0;
  color: var(--signal-deep);
  background: none;
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: 0;
  text-decoration: underline;
  text-transform: none;
}
.signature-summary { margin: 26px 0 18px; padding: 18px; background: var(--paper-deep); font-size: .82rem; }
.signature-summary strong { font-family: var(--display); text-transform: uppercase; }
.acceptance-list { display: grid; gap: 12px; }
.agree {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 10px;
  align-items: start;
  margin: 0;
  color: var(--muted-light);
  font-size: .8rem;
  font-weight: 400;
  line-height: 1.5;
}
.agree input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--signal); }
.agree a { color: var(--signal-deep); }
.signature-note { margin: 20px 0 0; color: var(--muted-light); font-size: .74rem; }
#btn {
  width: 100%;
  min-height: 56px;
  margin: 30px 0 0;
  padding: 14px 20px;
  border: 1px solid var(--signal);
  border-radius: 3px;
  color: var(--carbon);
  background: var(--signal);
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  cursor: pointer;
}
#btn:hover:not(:disabled) { color: var(--paper); background: var(--carbon); border-color: var(--carbon); }
#btn:disabled { opacity: .48; cursor: not-allowed; }
#result { display: none; margin: 18px 0 0; padding: 16px; font-size: .86rem; }
#result.ok { display: block; color: var(--ok); border: 1px solid var(--ok); }
#result.err { display: block; color: var(--error); border: 1px solid var(--error); }
#result a { color: inherit; }
@media (max-width: 980px) {
  .signup-shell { grid-template-columns: 1fr; }
  .signup-intro { position: static; }
  .signup-intro h1 { max-width: 100%; font-size: clamp(3.7rem, 11.5vw, 6.2rem); }
  .dispatch-steps { max-width: 42rem; }
}
@media (max-width: 680px) {
  .signup-nav, .signup-shell { width: calc(100% - 28px); }
  .signup-nav { min-height: 70px; }
  .signup-nav img { width: 180px; }
  .signup-shell { padding: 48px 0 72px; gap: 44px; }
  .signup-intro h1 { font-size: clamp(2.5rem, 12.5vw, 4rem); }
  .signup-form-panel { margin-inline: -14px; }
  .form-header, #form { padding-left: 20px; padding-right: 20px; }
  .field-grid, .document-status { grid-template-columns: 1fr; }
  .document-status li:nth-child(odd) { border-right: 0; }
  .document-status li:nth-child(even) { padding-left: 0; }
  .version-band { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}