/* ---------- Tokens ---------- */
:root {
  --paper: #FAF6ED;
  --paper-deep: #F1EADC;
  --ink: #211B17;
  --ink-soft: #4A4139;
  --slate: #766E62;
  --line: #DCD2BE;
  --line-strong: #C7BAA0;
  --stamp: #A23B2E;
  --stamp-dark: #7C2C22;
  --stamp-wash: #F4E4DF;
  --white: #FFFFFF;

  --serif: "Fraunces", Georgia, serif;
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --radius: 3px;
  --shadow: 0 1px 0 rgba(33,27,23,0.04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

::selection { background: var(--stamp-wash); color: var(--stamp-dark); }

/* ---------- Page shell ---------- */
.page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 20px 28px;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(33,27,23,0.05) 1px, transparent 0);
  background-size: 22px 22px;
}

.page__foot {
  margin-top: 22px;
  font-size: 13px;
  color: var(--slate);
  letter-spacing: 0.01em;
}

/* ---------- Document card ---------- */
.doc {
  position: relative;
  width: 100%;
  max-width: 560px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 24px 48px -24px rgba(33,27,23,0.28), var(--shadow);
  padding: 40px 44px 36px;
  overflow: hidden;
}

.doc__stub {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 10px;
  background-image: radial-gradient(circle at center, var(--paper) 2.6px, transparent 2.7px);
  background-size: 16px 10px;
  background-position: 8px -5px;
}

.doc__head { margin-bottom: 28px; }

.doc__eyebrow {
  margin: 0 0 10px;
  font-size: 12.5px;
  color: var(--stamp);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.doc__title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 30px;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.doc__lede {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 44ch;
}

/* ---------- Step indicator ---------- */
.steps {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 30px;
}

.steps__item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--slate);
}

.steps__dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--slate);
  flex-shrink: 0;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.steps__label {
  font-size: 13.5px;
  font-weight: 500;
}

.steps__item.is-active .steps__dot {
  background: var(--stamp);
  border-color: var(--stamp);
  color: var(--white);
}

.steps__item.is-active .steps__label { color: var(--ink); }

.steps__item.is-done .steps__dot {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.steps__line {
  flex: 1;
  height: 1px;
  background: var(--line);
  max-width: 60px;
}

/* ---------- Form structure ---------- */
.panel { display: none; }
.panel.is-active { display: block; animation: fade-up 0.32s ease both; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 26px;
}

.field { display: flex; flex-direction: column; }

.field label,
.field__label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

.field__label--spaced { margin-top: 18px; }

.field__optional {
  font-weight: 400;
  color: var(--slate);
}

.field input[type="text"],
.field input[type="email"] {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 11px 12px;
  font-family: var(--sans);
  font-size: 14.5px;
  color: var(--ink);
  background: var(--paper);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.field input:focus-visible,
textarea:focus-visible,
.chip input:focus-visible + span,
.segmented__option input:focus-visible + span,
.option-card input:focus-visible ~ .option-card__radio {
  outline: 2px solid var(--stamp);
  outline-offset: 2px;
}

.field input:focus,
textarea:focus {
  border-color: var(--stamp);
  background: var(--white);
}

.group {
  border: 0;
  margin: 0 0 26px;
  padding: 0;
}

.group legend {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  padding: 0;
}

.sub-group {
  margin-top: -10px;
  padding: 16px 16px 4px;
  background: var(--paper);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  animation: fade-up 0.28s ease both;
}

/* ---------- Option cards (Step 1 main choice) ---------- */
.option-list { display: flex; flex-direction: column; gap: 8px; }

.option-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 13px 14px;
  cursor: pointer;
  background: var(--white);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.option-card:hover { border-color: var(--stamp); }

.option-card input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.option-card__radio {
  flex-shrink: 0;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  margin-top: 2px;
  position: relative;
  transition: border-color 0.15s ease;
}

.option-card__radio::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--stamp);
  transform: scale(0);
  transition: transform 0.15s ease;
}

.option-card input:checked ~ .option-card__radio {
  border-color: var(--stamp);
}
.option-card input:checked ~ .option-card__radio::after {
  transform: scale(1);
}
.option-card:has(input:checked) {
  border-color: var(--stamp);
  background: var(--stamp-wash);
}

.option-card__body { display: flex; flex-direction: column; gap: 2px; }
.option-card__title { font-size: 14.5px; font-weight: 600; color: var(--ink); }
.option-card__desc { font-size: 13px; color: var(--slate); }

/* ---------- Chips (sub-options) ---------- */
.option-list--compact {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 8px;
}

.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }

.chip span {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13.5px;
  color: var(--ink-soft);
  background: var(--white);
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.chip:hover span { border-color: var(--stamp); }

.chip input:checked + span {
  border-color: var(--stamp);
  background: var(--stamp);
  color: var(--white);
}

/* ---------- Segmented control (Yes/No) ---------- */
.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.segmented__option { position: relative; cursor: pointer; }
.segmented__option input { position: absolute; opacity: 0; width: 1px; height: 1px; }

.segmented__option span {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 14px 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  background: var(--white);
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.segmented__option:hover span { border-color: var(--stamp); }

.segmented__option input:checked + span {
  border-color: var(--stamp);
  background: var(--stamp-wash);
  color: var(--stamp-dark);
  font-weight: 600;
}

/* ---------- Conditional blocks ---------- */
.conditional { margin-bottom: 26px; animation: fade-up 0.28s ease both; }

textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 12px;
  font-family: var(--sans);
  font-size: 14.5px;
  color: var(--ink);
  background: var(--paper);
  resize: vertical;
  min-height: 110px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

/* ---------- Dropzone ---------- */
.dropzone {
  position: relative;
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 26px 16px;
  text-align: center;
  background: var(--paper);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone.is-dragover {
  border-color: var(--stamp);
  background: var(--stamp-wash);
}

.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.dropzone__prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--slate);
  pointer-events: none;
}

.dropzone__icon { color: var(--stamp); }
.dropzone__text { font-size: 14px; color: var(--ink-soft); }
.dropzone__link { color: var(--stamp); font-weight: 600; text-decoration: underline; }
.dropzone__hint { font-size: 12.5px; color: var(--slate); }

.dropzone__filename {
  margin-top: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  word-break: break-all;
}

/* ---------- Buttons ---------- */
.form__actions { margin-top: 6px; }
.form__actions--split { display: flex; justify-content: space-between; align-items: center; gap: 12px; }

.btn {
  appearance: none;
  border: none;
  border-radius: var(--radius);
  font-family: var(--sans);
  font-size: 14.5px;
  font-weight: 600;
  padding: 13px 22px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, opacity 0.15s ease, transform 0.1s ease;
}

.btn--primary {
  background: var(--ink);
  color: var(--white);
  width: 100%;
}

.btn--primary:hover:not(:disabled) { background: var(--stamp-dark); }
.btn--primary:active:not(:disabled) { transform: translateY(1px); }

.btn--primary:disabled {
  background: var(--line);
  color: var(--slate);
  cursor: not-allowed;
}

.btn--ghost {
  background: transparent;
  color: var(--ink-soft);
  padding: 13px 10px;
}
.btn--ghost:hover { color: var(--ink); }

.form__error {
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--stamp-dark);
  background: var(--stamp-wash);
  border: 1px solid var(--stamp);
  border-radius: var(--radius);
  padding: 10px 12px;
}

/* ---------- Success state ---------- */
.panel--success {
  text-align: center;
  padding: 8px 0 4px;
}

.stamp {
  color: var(--stamp);
  display: inline-flex;
  margin: 6px 0 18px;
  animation: stamp-down 0.5s cubic-bezier(0.2, 1.4, 0.4, 1) both;
}

@keyframes stamp-down {
  0% { opacity: 0; transform: scale(1.7) rotate(-18deg); }
  60% { opacity: 1; }
  100% { opacity: 1; transform: scale(1) rotate(-8deg); }
}

.stamp__word {
  font-family: var(--sans);
  font-size: 19px;
  font-weight: 600;
  fill: currentColor;
  letter-spacing: 0.03em;
}

.stamp__sub {
  font-family: var(--sans);
  font-size: 9px;
  fill: currentColor;
  letter-spacing: 0.02em;
}

.panel--success__title {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--ink);
}

.panel--success__text {
  margin: 0 auto;
  max-width: 38ch;
  color: var(--ink-soft);
  font-size: 14.5px;
}

/* ---------- Responsive ---------- */
@media (max-width: 560px) {
  .page { padding: 28px 14px 20px; }

  .doc {
    padding: 30px 22px 28px;
    border-radius: 0;
    max-width: 100%;
  }

  .doc__title { font-size: 25px; }
  .field-row { grid-template-columns: 1fr; gap: 12px; }
  .segmented { grid-template-columns: 1fr 1fr; }
  .option-list--compact { flex-direction: column; }
  .chip span { width: 100%; }
  .steps__label { display: none; }
  .steps__line { max-width: 32px; }
}