/* ==========================================================================
   Page: Sign up & onboarding (site/sign-up.html)
   Stand-alone split layout with its own minimal chrome.
   ========================================================================== */

/* Layout -------------------------------------------------------------------- */
.signup {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr));
  min-height: 100vh;
}

.signup__main {
  display: flex;
  flex-direction: column;
  padding: 28px clamp(20px, 5vw, 64px);
}

.signup__brand .brand__name {
  font-size: 22px;
  letter-spacing: normal;
}

/* Vertically centred column that holds the current step */
.signup__flow {
  width: 100%;
  max-width: 420px;
  margin: auto 0;
  padding: 48px 0;
}

.signup__step,
.signup__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.signup__title {
  font: 400 40px/1.1 var(--font-serif);
  letter-spacing: var(--tracking-heading);
}

.signup__lead {
  font: 400 16px/1.5 var(--font-sans);
  color: var(--ink-2);
}

.signup__links {
  display: flex;
  gap: 16px;
  font: 400 12px/1 var(--font-mono);
  color: var(--ink-2);
}

/* Step 1: sign up / log in --------------------------------------------------- */
.mode-switch {
  display: flex;
  padding: 3px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-control);
  background: var(--surface);
}

.mode-switch__tab {
  flex: 1;
  height: 36px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--ink);
  font: 500 14px/1 var(--font-sans);
}

.mode-switch__tab[aria-selected="true"] {
  border-color: var(--hairline-strong);
  background: var(--canvas);
}

.auth-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.auth-option {
  gap: 10px;
  height: 48px;
  font-size: 16px;
}

.auth-option__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-xs);
  background: var(--surface-sunken);
  font: 600 12px/1 var(--font-sans);
}

.auth-option__icon--passkey {
  width: 24px;
  height: 24px;
  border: 1.5px solid var(--hairline-strong);
  border-radius: 50%;
  background: transparent;
  font: 600 11px/1 var(--font-mono);
}

/* "—— or with email ——" */
.divider {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 400 12px/1 var(--font-mono);
  color: var(--ink-2);
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--hairline);
}

.signup__input {
  height: 50px;
  font-size: 16px;
}

.signup__error {
  margin-top: -12px;
  line-height: 1.3;
}

.signup__submit {
  height: 52px;
  font-size: 17px;
}

.signup__fineprint {
  font: 400 12px/1.5 var(--font-mono);
  color: var(--ink-2);
}

/* Step 2: check your inbox ---------------------------------------------------- */
.signup__badge {
  align-self: flex-start;
  height: auto;
  padding: 6px 10px;
  background: var(--machine-tint);
}

.signup__demo {
  height: 48px;
}

/* Step 3: onboarding checklist ------------------------------------------------- */
.onboarding__eyebrow {
  font: 500 12px/1 var(--font-mono);
  letter-spacing: var(--tracking-label);
  color: var(--machine-ink);
}

/* --progress: share of completed tasks (set by sign-up.js) */
.progress {
  height: 4px;
  border-radius: 2px;
  background: var(--surface-sunken);
}

.progress__bar {
  width: var(--progress, 0%);
  height: 4px;
  border-radius: 2px;
  background: var(--ink);
}

.onboarding {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hairline);
}

.onboarding__item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
}

.onboarding__mark {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--hairline-strong);
  border-radius: 50%;
  font: 600 12px/1 var(--font-mono);
}

.onboarding__item.is-done .onboarding__mark {
  background: var(--action);
}

.onboarding__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.onboarding__title {
  font: 600 16px/1.3 var(--font-sans);
}

.onboarding__item.is-done .onboarding__title {
  text-decoration: line-through;
}

.onboarding__desc {
  font: 400 13px/1.35 var(--font-sans);
  color: var(--ink-2);
}

.onboarding__action {
  flex: none;
  height: 36px;
}

.onboarding__skip {
  font: 500 15px/1 var(--font-sans);
}

/* Product preview (right column, ≥ 900px) ------------------------------------ */
.preview {
  display: none;
}

@media (min-width: 900px) {
  .preview {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    padding: clamp(32px, 5vw, 72px);
    background: var(--machine-tint);
  }
}

.preview__eyebrow {
  font: 500 12px/1 var(--font-mono);
  letter-spacing: var(--tracking-label);
  color: var(--ink-2);
}

.preview__card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 570px;
  padding: 24px;
  border: 1px solid var(--machine-line);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.preview__question {
  font: 400 20px/1.35 var(--font-serif);
}

.preview__answer {
  font: 400 15px/1.6 var(--font-sans);
}

/* Static citation marker (not interactive, unlike the shared .cite) */
.preview__cite {
  padding: 1px 4px;
  border: 1px solid var(--machine-ink);
  border-radius: var(--radius-xs);
  font: 500 11px/1 var(--font-mono);
}

.preview__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 400 12px/1 var(--font-mono);
  color: var(--ink-2);
}

.preview__note {
  max-width: 460px;
  font: 400 15px/1.5 var(--font-sans);
}