:root {
  --ink: #101B2D;
  --paper: #ffffff;
  --cardiac: #C2312B;
  --slate: #5A6B7F;
  --grid: #ffffff;
  --rule: #fbfcfc;
  --teal: #0F6B62;
  --measure: 34rem;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 11px 11px;
  color: var(--ink);
  font-family: "Source Sans 3", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.sheet {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.masthead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.75rem;
}

.wordmark {
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0;
}

.wordmark span { color: var(--cardiac); }

.masthead-note {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0;
}

.trace { display: block; width: 100%; height: 34px; }

.trace path {
  fill: none;
  stroke: var(--cardiac);
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
  animation: draw 1.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes draw { to { stroke-dashoffset: 0; } }

.steps {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 1.5rem 0 2.25rem;
  padding: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
}

.steps li { display: flex; align-items: center; gap: 0.4rem; }
.steps .marker { color: var(--rule); }
.steps li[aria-current="step"] { color: var(--ink); }
.steps li[aria-current="step"] .marker { color: var(--cardiac); }
.steps li.done { color: var(--slate); }

h1 {
  font-family: "Archivo", sans-serif;
  font-weight: 600;
  font-size: clamp(1.75rem, 5vw, 2.375rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

h2 {
  font-family: "Archivo", sans-serif;
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  margin: 2.25rem 0 0.75rem;
}

p { margin: 0 0 1rem; }
.lede { font-size: 1.1875rem; color: var(--ink); }
.muted { color: var(--slate); }

.panel {
  background: #fff;
  border: 1px solid var(--rule);
  padding: 1.25rem 1.375rem;
  margin: 1.75rem 0;
}

.datalist { list-style: none; margin: 0; padding: 0; }

.datalist li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--grid);
}

.datalist li:last-child { border-bottom: 0; }

.datalist .label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--slate);
}

.field { margin: 0 0 1.5rem; }

.field > label, legend {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  padding: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.height-pair { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.height-input-with-unit { display: flex; align-items: center; gap: 0.35rem; }

.hint { color: var(--slate); font-size: 0.9375rem; margin: 0 0 0.5rem; }

input[type="text"] {
  font: inherit;
  width: 100%;
  max-width: 9rem;
  padding: 0.6rem 0.7rem;
  border: 2px solid #D8CBAE;
  background: #fff;
  color: var(--ink);
  border-radius: 2px;
}

input[type="text"]:focus-visible, .choice input:focus-visible + span, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--cardiac);
  outline-offset: 2px;
}

fieldset { border: 0; margin: 0 0 1.5rem; padding: 0; }

.choices { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.6rem; }
.choice { position: relative; }
.choice input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }

.choice span {
  display: block;
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--rule);
  background: #fff;
  border-radius: 2px;
  cursor: pointer;
  font-size: 0.9375rem;
}

.choice input:checked + span {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.error {
  color: var(--cardiac);
  font-size: 0.9375rem;
  margin: 0.4rem 0 0;
  font-weight: 600;
}

.button {
  display: inline-block;
  font-family: "Archivo", sans-serif;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  padding: 0.85rem 1.5rem;
  border: 0;
  border-radius: 2px;
  background: var(--cardiac);
  color: #fff;
  text-decoration: none;
  cursor: pointer;
}

.button:hover { background: #A82922; }

.button-quiet {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--rule);
}

.button-quiet:hover { background: #fff; border-color: var(--ink); }

.confirm {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1rem;
}

.colophon {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: 0.9375rem;
  color: var(--slate);
}

.colophon a { color: var(--slate); }

@media (prefers-reduced-motion: reduce) {
  .trace path { animation: none; stroke-dashoffset: 0; }
}

.actions { margin-top: 2rem; }