/* ==========================================================================
   Layout — the page shell, the invitation column and the desktop legend.
   ========================================================================== */

.page {
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

.invitation {
  position: relative;
  width: 100%;
  max-width: var(--invitation-width);
  overflow: hidden;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-card);
}

/* --------------------------------------------------------------------------
   Sections — one vertical rhythm, three background moods.
   -------------------------------------------------------------------------- */
.section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--section-padding-block) var(--section-padding-inline);
  background-color: var(--color-surface);
}

.section-warm {
  background-color: var(--color-surface-warm);
}

.section--soft {
  background-color: var(--color-surface-soft);
}

.section--alt {
  background-color: var(--color-surface-alt);
}

.section--closing {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

.section__title {
  color: var(--color-primary);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  text-align: center;
}

.section__title-wrapper {
  position: relative;
  width: 100%;
}

.section__title--lg {
  font-size: var(--text-3xl);
}

.section__title--md {
  font-size: var(--text-lg);
}

.section__script {
  margin-bottom: var(--space-xs);
  color: var(--color-secondary);
  font-family: var(--font-script);
  font-size: var(--text-script-lg);
  line-height: 1.1;
}

/* --------------------------------------------------------------------------
   Desktop legend — design documentation, hidden on the phone-width layout.
   -------------------------------------------------------------------------- */
.legend {
  position: sticky;
  top: 0;
  align-self: flex-start;
  width: var(--legend-width);
  height: 100vh;
  padding: var(--space-2xl) var(--space-xl);
  font-size: var(--text-xs);
  line-height: 1.8;
}

.legend__title {
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
}

.legend__heading {
  display: block;
  margin-top: var(--space-md);
  color: var(--color-ink);
  font-weight: var(--weight-bold);
}

.legend__highlight {
  color: var(--color-primary);
}

.legend__swatches {
  display: flex;
  gap: var(--space-2xs);
  margin-top: var(--space-xs);
}

.legend__swatch {
  width: 22px;
  height: 22px;
  border: 1px solid var(--color-ink-14);
  border-radius: 50%;
  background-color: var(--swatch);
}

.legend__swatch--primary {
  --swatch: var(--color-primary);
}

.legend__swatch--secondary {
  --swatch: var(--color-secondary);
}

.legend__swatch--accent {
  --swatch: var(--color-accent);
}

.legend__swatch--surface-soft {
  --swatch: var(--color-surface-soft);
}

.legend__swatch--surface-warm {
  --swatch: var(--color-surface-warm);
}

.legend__swatch--surface {
  --swatch: var(--color-surface);
}

.legend__footnote {
  margin-top: var(--space-sm);
  color: var(--color-ink-70);
  font-size: var(--text-2xs);
  line-height: var(--leading-loose);
}

/* The legend and the wireframe notes are annotations, not content:
   they stay out of the page until `?notes=1` opts in (see js/notes.js). */
.legend,
.wf-note {
  display: none;
}

.notes-visible .wf-note {
  display: block;
}

@media (min-width: 901px) {
  .notes-visible .legend {
    display: block;
  }
}