/* Baile website UI kit styles — consumes tokens from ../../colors_and_type.css */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); color: var(--fg); font-family: var(--font-sans); font-size: var(--fs-body); line-height: var(--lh-normal); }

/* -------- layout -------- */
.br-shell { display: flex; flex-direction: column; min-height: 100vh; }
.br-main  { flex: 1; }
.br-container { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-6); }
.br-narrow    { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-6); }

/* -------- header -------- */
.br-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: var(--space-6);
  padding: 18px var(--space-6);
  /* sits lightly on the page: the page color, slightly translucent, with a hairline */
  background: color-mix(in oklab, var(--bg), transparent 6%);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  color: var(--fg-muted);
}
.br-brand { display: flex; align-items: center; gap: 12px; color: var(--fg); }
.br-brand-mark-link,
.br-brand-text-link { display: flex; align-items: center; color: inherit; text-decoration: none; border-radius: 4px; transition: opacity var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard); }
.br-brand-mark-link { padding: 2px; margin: -2px; }
.br-brand-mark-link { color: var(--mark); }
.br-brand-mark-link:hover { color: var(--gold-500); }
.br-brand-text-link:hover { opacity: 0.8; }
.br-brand-mark { width: 34px; height: 34px; display: block; }
/* The mark's SVG strokes are drawn for large sizes; thicken them at logo size. */
.br-brand-mark path, .br-footer-mark path { stroke-width: 9px; }
.br-brand-text { display: flex; flex-direction: column; line-height: 1; }
.br-brand-name { font-size: 15px; font-weight: 500; letter-spacing: -0.005em; color: var(--fg); }
.br-brand-sub  { font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--fg-subtle); margin-top: 4px; }
.br-nav { display: flex; gap: 28px; margin-left: auto; }
.br-nav-link { font-size: 14px; color: var(--fg-muted); text-decoration: none; position: relative; padding: 4px 0; transition: color var(--dur-fast) var(--ease-standard); }
.br-nav-link:hover { color: var(--fg); }
.br-nav-link.is-active { color: var(--fg); }
.br-nav-link.is-active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -3px; height: 2px; background: var(--accent); }
.br-header-actions { margin-left: 16px; }
.br-header .br-btn-secondary { color: var(--fg); border-color: var(--border-strong); }
.br-header .br-btn-secondary:hover { border-color: var(--fg); }

/* mobile nav toggle (hamburger) — hidden on desktop */
.br-nav-toggle {
  display: none;
  margin-left: auto;
  width: 40px; height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--fg);
  cursor: pointer;
  align-items: center; justify-content: center;
  transition: color var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard);
}
.br-nav-toggle:hover { border-color: var(--fg); }
.br-nav-toggle-icon { display: flex; flex-direction: column; gap: 5px; }
.br-nav-toggle-icon span { display: block; width: 18px; height: 1px; background: currentColor; transition: transform var(--dur-fast) var(--ease-standard), opacity var(--dur-fast) var(--ease-standard); }
.br-nav-toggle[aria-expanded='true'] .br-nav-toggle-icon span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.br-nav-toggle[aria-expanded='true'] .br-nav-toggle-icon span:nth-child(2) { opacity: 0; }
.br-nav-toggle[aria-expanded='true'] .br-nav-toggle-icon span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* mobile nav panel */
.br-nav-mobile {
  display: none;
  position: absolute; top: 100%; left: 0; right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: var(--space-3) var(--space-6) var(--space-5);
  flex-direction: column;
  box-shadow: var(--shadow-md);
}
.br-nav-mobile.is-open { display: flex; }
.br-nav-mobile .br-nav-link {
  font-size: 17px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-faint);
  color: var(--fg-muted);
}
.br-nav-mobile .br-nav-link:last-child { border-bottom: 0; }
.br-nav-mobile .br-nav-link.is-active { color: var(--fg); font-weight: 500; }
.br-nav-mobile .br-nav-link.is-active::after { display: none; }

/* -------- buttons -------- */
.br-btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-sans); font-size: 15px; font-weight: 500; padding: 11px 20px; border-radius: var(--radius-sm); border: 1px solid transparent; cursor: pointer; transition: all var(--dur-fast) var(--ease-standard); text-decoration: none; line-height: 1; background: transparent; color: var(--fg); white-space: nowrap; }
.br-btn-sm { font-size: 13px; padding: 7px 14px; }
.br-btn-primary { background: var(--ink-900); color: var(--mist-100); }
.br-btn-primary:hover { background: var(--ink-800); }
.br-btn-secondary { border-color: var(--border-strong); }
.br-btn-secondary:hover { border-color: var(--fg); }
.br-btn-link { padding: 4px 0; border-bottom: 1px solid color-mix(in oklab, var(--fg), transparent 70%); border-radius: 0; }
.br-btn-link:hover { color: var(--moss-600); border-bottom-color: var(--moss-600); }
.br-arrow { transition: transform var(--dur-fast) var(--ease-standard); display: inline-block; }
.br-btn:hover .br-arrow { transform: translateX(3px); }

/* -------- typography helpers -------- */
.br-display { font-family: var(--font-display); font-size: clamp(44px, 6.8vw, 92px); line-height: 1.04; letter-spacing: -0.01em; font-weight: 400; text-wrap: balance; margin: 0; color: var(--fg); }
.br-h1 { font-family: var(--font-display); font-size: var(--fs-h1); line-height: 1.08; letter-spacing: -0.01em; font-weight: 400; margin: 0; }
.br-h2 { font-family: var(--font-display); font-size: var(--fs-h2); line-height: 1.15; letter-spacing: -0.005em; font-weight: 400; margin: 0; }
.br-h3 { font-family: var(--font-display); font-size: var(--fs-h3); line-height: 1.2; font-weight: 500; margin: 0; letter-spacing: 0; }
.br-eyebrow { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-subtle); font-weight: 500; }
.br-lede { font-size: var(--fs-body-lg); line-height: 1.5; color: var(--fg-muted); max-width: 52ch; margin: var(--space-5) 0 0; text-wrap: pretty; }
.br-muted { color: var(--fg-muted); line-height: 1.5; }
.br-meta  { font-size: var(--fs-meta); color: var(--fg-subtle); }
.br-mono  { font-family: var(--font-mono); }

/* -------- hero -------- */
.br-hero { position: relative; max-width: var(--container); margin: 0 auto; padding: var(--space-10) var(--space-6) var(--space-9); overflow: hidden; }
.br-hero-compact { padding: var(--space-9) var(--space-6) var(--space-7); }
.br-hero-eyebrow { display: inline-block; margin-bottom: var(--space-5); }
.br-cjk-bg { position: absolute; font-family: var(--font-cjk); font-size: 520px; line-height: 1; color: var(--ink-900); opacity: 0.035; right: -40px; top: -80px; user-select: none; pointer-events: none; font-weight: 400; }
.br-hero-actions { display: flex; gap: var(--space-5); align-items: center; margin-top: var(--space-6); flex-wrap: wrap; }

/* -------- section -------- */
.br-section { max-width: var(--container); margin: 0 auto; padding: var(--space-9) var(--space-6); }
.br-section-tight { padding: var(--space-8) var(--space-6); }
.br-section-head { margin-bottom: var(--space-7); max-width: 60ch; }
.br-section-head .br-eyebrow { margin-bottom: var(--space-3); display: inline-block; }
.br-section-foot { margin-top: var(--space-6); }

/* -------- pillars -------- */
.br-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.br-pillar  { padding: var(--space-6) 0; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: var(--space-3); }
.br-pillar-index { font-family: var(--font-mono); font-size: 12px; color: var(--fg-subtle); letter-spacing: 0.08em; }
.br-pillar-copy { color: var(--fg-muted); line-height: 1.55; }
.br-pillar .br-btn-link { align-self: flex-start; margin-top: var(--space-3); }

/* -------- publications list -------- */
.br-pub-list { list-style: none; margin: 0; padding: 0; }
.br-pub-row  { display: grid; grid-template-columns: 180px 1fr 190px 32px; gap: var(--space-6); align-items: start; padding: var(--space-5) 0; border-top: 1px solid var(--border-faint); transition: background var(--dur-fast) var(--ease-standard); }
.br-pub-row:last-child { border-bottom: 1px solid var(--border-faint); }
.br-pub-row:hover { background: color-mix(in oklab, var(--fg), transparent 97%); }
.br-pub-thumb { display: block; aspect-ratio: 3 / 2; border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-sunken); border: 1px solid var(--border-faint); }
.br-pub-thumb img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-standard); }
.br-pub-row:hover .br-pub-thumb img { transform: scale(1.03); }
.br-pub-main  { display: flex; flex-direction: column; gap: 6px; }
.br-pub-meta, .br-pub-arrow { padding-top: 2px; }
.br-pub-kind  { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-subtle); font-weight: 500; }
.br-pub-title { font-size: 19px; letter-spacing: -0.005em; }
.br-pub-title a { color: var(--fg); text-decoration: none; border-bottom: 1px solid transparent; padding-bottom: 2px; }
.br-pub-row:hover .br-pub-title a { border-bottom-color: color-mix(in oklab, var(--fg), transparent 70%); }
.br-pub-meta  { font-family: var(--font-mono); font-size: 12px; color: var(--fg-subtle); }
.br-pub-meta a { color: inherit; }
.br-pub-meta a:hover { color: var(--fg); }
.br-pub-desc  { font-size: 14px; color: var(--fg-muted); line-height: 1.5; margin: 2px 0 0; max-width: 60ch; letter-spacing: 0; }
.br-pub-arrow { color: var(--fg-faint); justify-self: end; font-family: var(--font-mono); font-size: 12px; }
.br-pub-row:hover .br-pub-arrow { color: var(--fg); }

/* -------- mission band -------- */
.br-band { background: var(--ink-900); color: var(--mist-100); padding: var(--space-10) var(--space-6); position: relative; overflow: hidden; }
.br-band-inner { max-width: var(--container-narrow); margin: 0 auto; display: grid; grid-template-columns: 140px 1fr; gap: var(--space-7); align-items: center; }
.br-band-mark { font-family: var(--font-cjk); font-size: 140px; line-height: 1; color: var(--mark-large); opacity: 0.85; text-align: center; }
.br-band-quote { margin: 0; font-size: 22px; line-height: 1.5; font-weight: 400; color: var(--mist-100); text-wrap: pretty; letter-spacing: -0.005em; }
.br-band-quote p { margin: 0; }
.br-band-footer { margin-top: var(--space-5); font-size: 13px; color: var(--sage-300); letter-spacing: 0.04em; }

/* -------- newsletter -------- */
.br-section-newsletter { padding-top: var(--space-6); padding-bottom: var(--space-9); }
.br-newsletter { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-7); padding: var(--space-7); background: var(--bg-sunken); border: 1px solid var(--border-faint); border-radius: var(--radius-md); align-items: center; }
.br-newsletter-form { display: flex; gap: var(--space-3); align-items: stretch; }
.br-newsletter-form input { flex: 1; padding: 12px 14px; border: 1px solid var(--border); background: var(--bg-elevated); color: var(--fg); border-radius: var(--radius-sm); font-family: var(--font-sans); font-size: 15px; outline: none; }
.br-newsletter-form input:focus { border-color: var(--fg); }
.br-newsletter-sent { color: var(--fg-muted); font-size: 15px; padding: 12px 0; font-style: italic; }

/* -------- footer -------- */
.br-footer { border-top: 1px solid var(--border-faint); padding: var(--space-8) var(--space-6) var(--space-6); background: var(--bg); }
.br-footer-inner { max-width: var(--container); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--space-7); }
.br-footer-col { display: flex; flex-direction: column; gap: var(--space-3); }
.br-footer-col .br-eyebrow { margin-bottom: var(--space-2); }
.br-footer-mark { width: 34px; height: 34px; color: var(--mark); margin-bottom: var(--space-2); }
.br-footer-blurb { font-size: 14px; color: var(--fg-muted); line-height: 1.5; max-width: 36ch; margin: 0; }
.br-footer-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.br-footer-list a { font-size: 14px; color: var(--fg-muted); text-decoration: none; }
.br-footer-list a:hover { color: var(--fg); }
.br-footer-bottom { max-width: var(--container); margin: var(--space-7) auto 0; padding-top: var(--space-5); border-top: 1px solid var(--border-faint); display: flex; justify-content: space-between; align-items: center; }
.br-footer-seal { width: 30px; height: 30px; color: var(--mark); }
.br-footer-seal path { stroke-width: 7px; }
.br-footer-seal rect { stroke-width: 3px; }

/* -------- programs (research page) -------- */
.br-programs { display: flex; flex-direction: column; }
.br-program { padding: var(--space-7) 0; border-top: 1px solid var(--border); display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-7); align-items: start; }
.br-program[id] { scroll-margin-top: 96px; }
.br-program:last-child { border-bottom: 1px solid var(--border); }
.br-program-head { display: flex; gap: var(--space-5); align-items: flex-start; }
.br-program-num  { font-family: var(--font-mono); font-size: 12px; color: var(--fg-subtle); letter-spacing: 0.08em; padding-top: 8px; }
.br-program-copy { grid-column: 2 / 3; grid-row: 1 / 2; color: var(--fg-muted); line-height: 1.6; font-size: 17px; }
.br-program-topics { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px; grid-column: 1 / 2; }
.br-program-topics li { font-size: 14px; color: var(--fg-muted); }
.br-dot { color: var(--fg-faint); margin-right: 4px; }
.br-program .br-btn-link { grid-column: 2 / 3; justify-self: start; }

/* -------- filter row -------- */
.br-filter-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: var(--space-3) 0; margin-bottom: var(--space-3); border-bottom: 1px solid var(--border-faint); }
.br-filter { background: transparent; border: 1px solid transparent; padding: 6px 12px; border-radius: var(--radius-sm); font-family: var(--font-sans); font-size: 13px; color: var(--fg-muted); cursor: pointer; white-space: nowrap; transition: all var(--dur-fast) var(--ease-standard); }
.br-filter:hover { color: var(--fg); }
.br-filter.is-active { background: var(--ink-900); color: var(--mist-100); border-color: var(--ink-900); }
.br-filter-count { margin-left: auto; font-family: var(--font-mono); font-size: 12px; color: var(--fg-faint); white-space: nowrap; }

/* -------- support -------- */
.br-support-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
.br-support-card { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-6); background: var(--bg-elevated); border: 1px solid var(--border-faint); border-radius: var(--radius-md); }
.br-support-card .br-btn { align-self: flex-start; margin-top: var(--space-3); }

/* -------- story (easter-egg "why Baile" page) -------- */
.br-story { min-height: calc(100vh - 72px); display: flex; align-items: center; justify-content: center; padding: var(--space-9) var(--space-6); position: relative; overflow: hidden; }
.br-story::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at center, transparent 0%, var(--bg-sunken) 100%); opacity: 0.5; pointer-events: none; }
.br-story-inner { position: relative; max-width: 56ch; text-align: center; display: flex; flex-direction: column; align-items: center; gap: var(--space-5); }
.br-story-mark { font-family: var(--font-cjk); font-size: 180px; line-height: 1; color: var(--mark-large); opacity: 0.9; font-weight: 400; margin-bottom: var(--space-3); }
.br-story-title { font-family: var(--font-display); font-size: clamp(44px, 5.5vw, 64px); line-height: 1.1; letter-spacing: -0.01em; font-weight: 400; margin: 0; color: var(--fg); }
.br-story-body { display: flex; flex-direction: column; gap: var(--space-4); color: var(--fg-muted); font-size: 18px; line-height: 1.6; text-wrap: pretty; }
.br-story-foot { margin-top: var(--space-5); }

@media (max-width: 900px) {
  .br-pillars, .br-footer-inner, .br-support-grid { grid-template-columns: 1fr; }
  .br-program { grid-template-columns: 1fr; }
  .br-program-copy, .br-program-topics, .br-program .br-btn-link { grid-column: auto; }
  .br-newsletter { grid-template-columns: 1fr; }
  .br-pub-row { grid-template-columns: 1fr; gap: var(--space-3); }
  .br-pub-thumb { max-width: 420px; }
  .br-pub-arrow { display: none; }
  .br-nav { display: none; }
  .br-header-actions { display: none; }
  .br-nav-toggle { display: inline-flex; }
  .br-cjk-bg { font-size: 340px; }
}

/* -------- skip link (keyboard users) -------- */
.br-skip {
  position: absolute; left: var(--space-4); top: -60px; z-index: 100;
  background: var(--bg-elevated); color: var(--fg);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  padding: 10px 16px; font-size: var(--fs-body-sm); text-decoration: none;
  transition: top var(--dur-fast) var(--ease-standard);
}
.br-skip:focus { top: var(--space-3); }
.br-main:focus { outline: none; }

/* -------- focus visibility -------- */
.br-nav-link:focus-visible,
.br-btn:focus-visible,
.br-nav-toggle:focus-visible,
.br-brand-mark-link:focus-visible,
.br-brand-text-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.br-footer a:focus-visible,
.br-main a:focus-visible { outline: 2px solid var(--moss-600); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  .br-pub-thumb img { transition: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* -------- homepage feature callout -------- */
.br-feature {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: var(--space-7);
  align-items: center; padding: var(--space-7);
  background: var(--bg-sunken); border: 1px solid var(--border-faint);
  border-radius: var(--radius-md);
}
.br-feature-body { display: flex; flex-direction: column; gap: var(--space-4); align-items: flex-start; }
.br-feature-body .br-muted { max-width: 54ch; }
.br-feature-figure { margin: 0; }
/* Two real closing lines, unconstrained vs constrained, in place of a decorative figure */
.br-excerpts { display: flex; flex-direction: column; gap: var(--space-4); }
.br-excerpt { margin: 0; padding: var(--space-4) var(--space-5); background: var(--bg-elevated); border-left: 2px solid var(--border-strong); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.br-excerpt-ariel { border-left-color: var(--accent); }
.br-excerpt .br-eyebrow { margin-bottom: var(--space-2); }
.br-excerpt p { font-family: var(--font-display); font-size: 19px; line-height: 1.45; color: var(--fg); }
.br-excerpts figcaption { font-size: var(--fs-meta); color: var(--fg-subtle); }
.br-excerpts cite { font-style: italic; }
/* "Latest" line under the home hero */
.br-latest { margin-top: var(--space-6); display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px var(--space-3); font-size: var(--fs-body-sm); color: var(--fg-muted); }
.br-latest .br-eyebrow { color: var(--accent); }
.br-latest a { color: var(--fg); }
.br-latest-meta { font-size: var(--fs-meta); color: var(--fg-subtle); }

@media (max-width: 900px) {
  .br-feature { grid-template-columns: 1fr; padding: var(--space-6); }
}

/* Phones: roughly halve the vertical padding so sections stack without screen-high gaps */
@media (max-width: 640px) {
  .br-hero         { padding-top: var(--space-7); padding-bottom: var(--space-7); }
  .br-hero-compact { padding-top: var(--space-7); padding-bottom: var(--space-5); }
  .br-section      { padding-top: var(--space-7); padding-bottom: var(--space-7); }
  .br-section-tight{ padding-top: var(--space-5); padding-bottom: var(--space-5); }
  .br-section-head { margin-bottom: var(--space-5); }
  /* a compact page heading followed directly by text: don't stack both paddings */
  .br-hero-compact + .br-section { padding-top: var(--space-4); }
  .br-program      { padding: var(--space-6) 0; gap: var(--space-4); }
  .br-feature      { padding: var(--space-5); gap: var(--space-6); }
  .br-footer       { padding-top: var(--space-7); }
  .br-footer-inner { gap: var(--space-6); }
  .br-footer-bottom { margin-top: var(--space-6); }
}