* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 320px; }
button { font: inherit; cursor: pointer; }
.shell { width: min(100% - 40px, var(--page-max)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 20; top: -60px; left: 16px; padding: 10px 14px; background: var(--accent); color: var(--on-accent); }
.skip-link:focus { top: 12px; }
.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.header-inner { min-height: 88px; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; flex: none; align-items: center; }
.brand img { display: block; width: clamp(190px, 22vw, 250px); height: auto; }
.logo-dark { display: none !important; }
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block !important; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .logo-light { display: none; } :root:not([data-theme="light"]) .logo-dark { display: block !important; } }
.nav { margin-left: auto; display: flex; align-items: center; gap: clamp(12px, 2vw, 32px); }
.nav a { color: var(--ink-muted); font-size: var(--text-13); text-decoration: none; white-space: nowrap; }
.nav a:hover { color: var(--accent); text-decoration: underline; }
.theme-toggle { flex: none; min-height: 38px; padding: 6px 12px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); color: var(--ink); font-size: var(--text-12); }
.theme-toggle:hover { background: var(--surface-sunken); }
.hero { min-height: min(760px, calc(100dvh - 88px)); display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(32px, 6vw, 88px); align-items: center; padding-block: clamp(48px, 7vw, 100px); }
.hero-copy { max-width: 630px; }
.eyebrow, .micro { margin: 0; color: var(--accent); font: var(--type-micro); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; }
.hero h1 { max-width: 12ch; margin: 20px 0 24px; font: var(--weight-semibold) clamp(2.5rem, 4.8vw, var(--text-56))/1.06 var(--font-sans); letter-spacing: var(--tracking-display); text-wrap: balance; }
.hero-lede { max-width: 53ch; margin: 0; color: var(--ink-muted); font-size: clamp(var(--text-15), 1.5vw, var(--text-18)); line-height: 1.55; text-wrap: pretty; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px 26px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 48px; padding: 12px 20px; border-radius: var(--radius-md); text-decoration: none; font-weight: var(--weight-medium); transition: background-color var(--dur-base) var(--ease); }
.button-primary { background: var(--accent); color: var(--on-accent); }
.button-primary:hover { background: var(--accent-hover); color: var(--on-accent); }
.button:active, .text-link:active { transform: translateY(1px); }
.text-link { color: var(--accent); font-size: var(--text-13); font-weight: var(--weight-medium); text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.hero-note { max-width: 50ch; margin: 36px 0 0; padding-top: 16px; border-top: 1px solid var(--line); color: var(--ink-muted); font: var(--text-12)/1.5 var(--font-mono); }
.tree-panel { min-width: 0; }
.tree-field { position: relative; display: grid; place-items: center; aspect-ratio: 1; max-width: 520px; margin-inline: auto; overflow: hidden; touch-action: pan-y; }
.tree-field img, .tree-mark { position: absolute; width: 78%; max-width: 100%; height: 78%; object-fit: contain; }
.tree-static { display: block; }
.tree-mark { overflow: visible; opacity: 0; pointer-events: none; }
.tree-mark path { fill: var(--banyan-red); }
.tree-mark .leaf:not(.trunk) { transform-box: fill-box; transform-origin: center; }
.tree-field.motion-ready .tree-static { opacity: 0; }
.tree-field.motion-ready .tree-mark { opacity: 1; }
.tree-field.motion-ready .leaf:not(.trunk) { transform: translate(var(--scatter-x), var(--scatter-y)) rotate(var(--scatter-r)); opacity: 0; }
.tree-field.motion-ready .trunk { transform-box: fill-box; transform-origin: 50% 100%; transform: scaleY(.12); opacity: 0; }
.tree-field.is-assembling .leaf:not(.trunk) { transform: none; opacity: 1; transition: transform 1500ms var(--ease) var(--leaf-delay), opacity 800ms var(--ease) var(--leaf-delay); }
.tree-field.is-assembling .trunk { transform: none; opacity: 1; transition: transform 1100ms var(--ease), opacity 500ms var(--ease); }
.tree-field.motion-done .tree-mark { opacity: 0; }
.tree-field.motion-done .tree-static { opacity: 1; }
.tree-field.is-interacting .tree-mark { opacity: 1; }
.tree-field.is-interacting .tree-static { opacity: 0; }
.tree-field.is-interacting .leaf:not(.trunk) { transition: none; }
.tree-caption { max-width: 520px; display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-inline: auto; padding-top: 14px; border-top: 1px solid var(--line); }
.tree-caption .micro { color: var(--ink-muted); letter-spacing: var(--tracking-micro); }
.tree-caption button { flex: none; padding: 4px 0; border: 0; background: none; color: var(--accent); font-size: var(--text-12); }
.tree-caption button:hover { text-decoration: underline; }
.about { border-block: 1px solid var(--line); background: var(--surface); }
.about-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 7vw, 100px); padding-block: clamp(56px, 7vw, 96px); }
.section-intro h2, .maps h2 { max-width: 17ch; margin: 18px 0 0; font-size: clamp(var(--text-32), 3.4vw, var(--text-40)); font-weight: var(--weight-medium); line-height: 1.15; letter-spacing: var(--tracking-display); text-wrap: balance; }
.about-copy { max-width: var(--measure); padding-top: 27px; border-top: 2px solid var(--line-strong); }
.about-copy p { margin: 0 0 20px; color: var(--ink-muted); font-size: var(--text-18); line-height: 1.6; }
.about-copy p:last-child { margin-bottom: 0; }
.maps { padding-block: clamp(56px, 7vw, 96px); }
.maps-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 32px 80px; }
.maps-heading > p { max-width: 48ch; margin: 0; color: var(--ink-muted); font-size: var(--text-18); line-height: 1.55; }
.maps-link { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 130px; margin-top: 44px; padding: 24px 30px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--surface); color: var(--ink); text-decoration: none; transition: background-color var(--dur-base) var(--ease); }
.maps-link:hover { background: var(--surface-sunken); color: var(--ink); }
.maps-link > span:first-child { display: grid; gap: 12px; }
.maps-link strong { font-size: var(--text-32); font-weight: var(--weight-medium); letter-spacing: var(--tracking-display); }
.maps-arrow { color: var(--accent); font: var(--text-40)/1 var(--font-mono); }
.site-footer { border-top: 1px solid var(--line); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 24px; color: var(--ink-muted); font-size: var(--text-12); }
.footer-inner a { text-decoration: none; }
.footer-inner a:hover { text-decoration: underline; }
@media (max-width: 850px) {
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 32px; }
  .tree-panel { order: -1; }
  .hero-copy { max-width: 680px; }
  .tree-field { max-width: 410px; }
  .tree-caption { max-width: 410px; }
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .about-copy { padding-top: 20px; }
  .maps-heading { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .shell { width: min(100% - 32px, var(--page-max)); }
  .header-inner { min-height: 76px; flex-wrap: wrap; gap: 8px 16px; padding-block: 12px; }
  .brand img { width: 168px; }
  .nav { order: 3; width: 100%; justify-content: space-between; margin-left: 0; padding-top: 8px; border-top: 1px solid var(--line); }
  .theme-toggle { margin-left: auto; }
  .hero { padding-block: 20px 56px; gap: 28px; }
  .hero h1 { max-width: 13ch; margin-block: 16px 20px; }
  .hero-note { margin-top: 28px; }
  .tree-field { max-width: 340px; }
  .tree-caption { flex-wrap: wrap; }
  .about-copy p, .maps-heading > p { font-size: var(--text-15); }
  .maps-link { min-height: 112px; margin-top: 32px; padding: 20px; }
  .maps-link strong { font-size: var(--text-24); }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tree-mark { display: none; }
  .tree-field.motion-ready .tree-static { opacity: 1; }
  .tree-caption button { display: none; }
}