/* Typography: one role system; Editorial/Utility specializations live in page grammars. */
.display-title, .page-title, .section-title, .subsection-title { margin: 0; color: var(--color-text); text-wrap: balance; }
.display-title, .page-title, .section-title { font-family: var(--font-serif); font-weight: 650; }
.display-title { font-size: var(--text-display); line-height: 1.18; letter-spacing: -.035em; }
.page-title { font-size: var(--type-page-h1); line-height: var(--type-page-h1-lh); letter-spacing: var(--type-page-h1-ls); }
.section-title { font-size: var(--type-section-h2); line-height: var(--type-section-h2-lh); letter-spacing: var(--type-section-h2-ls); }
.subsection-title { font-size: var(--type-h3); line-height: var(--type-h3-lh); letter-spacing: var(--type-h3-ls); font-weight: 650; }
.lead { margin: var(--space-4) 0 0; max-width: 42em; font-size: var(--type-lead); line-height: var(--type-lead-lh); color: var(--color-text-soft); }
.body-copy { margin: 0; font-size: var(--type-body); line-height: var(--type-body-lh); }
.meta, .eyebrow, .specimen-label { margin: 0; color: var(--color-text-muted); font-size: var(--type-meta); line-height: var(--type-meta-lh); letter-spacing: .11em; }
/* R03 (RDQ-02 working default): eyebrow moves out of the 13px meta role to
   14px/.05em weight 600 — editorial kicker, not a scattered category tag. */
.eyebrow { color: var(--color-accent); font-weight: 600; font-size: .875rem; letter-spacing: .05em; line-height: 1.5; }
.specimen-label { margin-bottom: var(--space-2); }
.editorial-callout { margin: var(--space-7) 0 0; padding: var(--space-5) 0 var(--space-5) var(--space-5); border-left: 2px solid var(--color-gold); font-family: var(--font-serif); font-size: clamp(1.25rem, 2.4vw, 1.75rem); line-height: 1.65; color: var(--color-text-soft); }
.text-link { color: var(--color-accent); text-underline-offset: .24em; text-decoration-thickness: 1px; transition: color var(--transition-fast); }
.text-link:hover { color: var(--color-accent-hover); }
/* A01: standalone text links keep a >=48px hit area without shifting visual rhythm. */
a.text-link { display: inline-flex; align-items: center; min-height: 48px; }

/* Header / navigation — R03 mobile master: 60px static bar, single page gutter
   (no double inset), brand 14px/600, resident actions with >=44px targets. */
.site-header { height: 60px; display: flex; align-items: center; border-bottom: 1px solid color-mix(in srgb, var(--color-border) 75%, transparent); background: var(--color-bg); position: relative; z-index: 20; }
.site-header__inner { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding-inline: var(--gutter); }
.site-brand { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; color: var(--color-text); font-size: .875rem; font-weight: 600; line-height: 1.4; letter-spacing: .02em; white-space: nowrap; }
.site-header__actions { display: flex; align-items: center; gap: 6px; }
@media (min-width: 375px) { .site-header__actions { gap: 8px; } }
.header-action { display: inline-flex; align-items: center; min-height: 44px; padding: 0 2px; border: 0; background: transparent; color: var(--color-text-soft); font-size: .875rem; font-weight: 600; line-height: 1.4; text-decoration: none; cursor: pointer; }
.header-action:hover { color: var(--color-text); }
.nav-toggle { min-width: 44px; min-height: 44px; padding: 0 .4rem; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--color-text-soft); font-size: .875rem; font-weight: 600; letter-spacing: .02em; cursor: pointer; }
.nav-toggle:hover { color: var(--color-text); background: color-mix(in srgb, var(--color-accent-soft) 35%, transparent); }
.site-nav { display: none; position: absolute; top: 60px; left: 0; right: 0; width: 100%; padding: 10px var(--gutter) 16px; border-bottom: 1px solid var(--color-border); background: var(--color-surface); }
.site-nav.is-open { display: grid; }
.site-nav__link { display: flex; align-items: center; min-height: 44px; padding: 6px 0; text-decoration: none; color: var(--color-text-soft); background: transparent; border: 0; cursor: pointer; font-size: .9375rem; text-align: left; }
.site-nav__link:hover { color: var(--color-text); }
.header-auth-form { margin: 0; }
@media (min-width: 761px) and (max-width: 920px) {
  .site-header { height: 68px; }
  .site-nav { top: 68px; }
}
@media (min-width: 921px) {
  .site-header { height: 72px; }
  .site-header__inner { padding-inline: var(--gutter); }
  .site-brand { font-size: .875rem; }
  .nav-toggle { display: none; }
  .site-nav { display: flex; position: static; width: auto; padding: 0; border: 0; background: transparent; gap: 28px; }
  .site-nav__link { min-height: 48px; min-width: 48px; justify-content: center; padding: 0; font-size: .875rem; }
}

/* R03 page gutter steps (content safety edge): 360=20 / 390=22 / 430=24. */
@media (max-width: 374.98px) { :root { --gutter: 20px; } }
@media (min-width: 410px) and (max-width: 760px) { :root { --gutter: 24px; } }

/* R03 F-3: unified back action — quiet text link below the primary CTA. */
.flow-back-action { display: inline-flex; align-items: center; min-height: 44px; font-size: .875rem; line-height: 1.5; font-weight: 500; color: var(--color-text-muted); text-decoration: none; }
.flow-back-action:hover { color: var(--color-text); }

/* Footer — BV-05 device rhythm: stacked / 28 / single-row 30-32 */
.site-footer { border-top: 1px solid var(--color-border); }
.site-footer__inner { padding-block: 24px; display: flex; flex-direction: column; gap: 4px; color: var(--color-text-muted); }
.site-footer__brand { margin: 0; font-size: .75rem; }
.site-footer .meta { margin: 0; }
@media (min-width: 761px) and (max-width: 920px) {
  .site-footer__inner { padding-block: 28px; }
}
@media (min-width: 921px) {
  .site-footer__inner { padding-block: 30px; flex-direction: row; align-items: center; justify-content: space-between; gap: var(--space-4); }
}

/* Buttons — CTA 15px / 1.35 / 650; hit area >=48px */
.button { min-height: 48px; min-width: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 11px 19px; border: 1px solid transparent; border-radius: var(--radius-sm); font-size: var(--type-cta); font-weight: 650; line-height: var(--type-cta-lh); text-decoration: none; cursor: pointer; transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast); }
.button:active:not(:disabled) { transform: translateY(1px); }
.button--primary { background: var(--color-text); color: var(--color-surface); border-color: var(--color-text); }
.button--primary:hover:not(:disabled) { background: #46372f; border-color: #46372f; }
.button--secondary { background: transparent; color: var(--color-text); border-color: var(--color-border-strong); }
.button--secondary:hover:not(:disabled) { border-color: var(--color-accent); background: color-mix(in srgb, var(--color-accent-soft) 35%, transparent); }
.button--quiet { background: transparent; color: var(--color-accent); border-color: transparent; }
.button--quiet:hover:not(:disabled) { background: color-mix(in srgb, var(--color-accent-soft) 50%, transparent); }
.button:disabled { opacity: .48; cursor: not-allowed; }

/* Current form family: Input / Textarea / OTP only. Select/Radio/Checkbox are retired as v1.0 authority components. */
.field { display: grid; gap: 8px; }
.field__label { font-weight: 650; font-size: var(--type-label); line-height: var(--type-label-lh); }
.required-mark { color: var(--color-danger); margin-left: .2em; }
.input, .textarea { width: 100%; min-height: 52px; padding: 12px 14px; border: 1px solid var(--color-border-strong); border-radius: 4px; background: #fffaf2; color: var(--color-text); font-size: var(--type-body); line-height: 1.6; box-shadow: none; outline: none; transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast); }
.textarea { min-height: 10rem; resize: vertical; line-height: 1.75; }
.input:focus, .textarea:focus { border-color: var(--color-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 16%, transparent); }
.field__hint { margin: 0; color: var(--color-text-muted); font-size: var(--type-helper); line-height: var(--type-helper-lh); }
.field__error { color: var(--color-danger); font-size: var(--type-helper); line-height: 1.55; font-weight: 600; }
.field__error:empty { display: none; }
.field__error p { margin: 0; display: flex; align-items: flex-start; gap: 8px; }
.field__error p::before { content: "!"; display: inline-grid; place-items: center; flex: 0 0 17px; width: 17px; height: 17px; margin-top: 1px; border: 1px solid currentColor; border-radius: 50%; font-size: 11px; line-height: 1; }
.field--error .input, .field--error .textarea { border-color: var(--color-danger-border); background: var(--color-danger-soft); box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-danger-border) 8%, transparent); }
.field--error .input:focus, .field--error .textarea:focus { border-color: var(--color-danger-border); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-danger-border) 15%, transparent); }
.form-grid { display: grid; gap: var(--space-5); }
.form-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* Open surfaces, not a generic card stack. */
.card, .quiet-card { border-top: 1px solid var(--color-border); padding: var(--space-5) 0; background: transparent; border-radius: 0; }
.notice { padding: var(--space-3) var(--space-4); border-left: 2px solid var(--color-gold); background: color-mix(in srgb, var(--color-surface) 66%, transparent); color: var(--color-text-soft); }
.divider { height: 1px; background: var(--color-border); border: 0; }


/* Internal DEBUG design-system specimens: current BV-03 roles only. */
.style-guide .token-swatch { display:grid; grid-template-columns:44px 1fr; gap:12px; align-items:center; padding:12px 0; border-top:1px solid var(--color-border); }
.style-guide .token-swatch code { grid-column:2; color:var(--color-text-muted); }
.style-guide .swatch { width:44px; height:44px; border:1px solid var(--color-border); }
.style-guide .swatch--bg { background:var(--color-bg); }
.style-guide .swatch--surface { background:var(--color-surface); }
.style-guide .swatch--text { background:var(--color-text); }
.style-guide .swatch--accent { background:var(--color-accent); }
.style-guide .swatch--gold { background:var(--color-gold); }
.style-guide .swatch--border { background:var(--color-border); }
.style-guide .type-specimen > div { padding-block:16px; border-top:1px solid var(--color-border); }
.style-guide .width-demo { margin-top:16px; padding:12px; border-top:1px solid var(--color-border); color:var(--color-text-muted); }
.style-guide .width-demo--reading { max-width:640px; }
.style-guide .width-demo--content, .style-guide .width-demo--wide { max-width:1180px; }