:root {
  --paper: #f4f2ec;
  --paper-2: #ebe8df;
  --ink: #151713;
  --ink-2: #4e5049;
  --ink-3: #64665d;
  --line: rgba(21, 23, 19, 0.16);
  --line-soft: rgba(21, 23, 19, 0.09);
  --accent: #1e5a3d;
  --accent-light: #a9d9b7;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Segoe UI Variable Display", "Segoe UI", system-ui, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html {
  background: var(--paper);
  color-scheme: light;
  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  letter-spacing: -0.006em;
  font-optical-sizing: auto;
  overflow-x: clip;
}

::selection { background: var(--accent); color: var(--paper); }

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p, ul, ol { margin: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: 6px;
  font-size: 0.875rem;
  transform: translateY(-180%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.wrap {
  width: 100%;
  max-width: 860px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

/* Header */
.site-header { padding-block: clamp(1.4rem, 3vw, 2rem); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.42em;
  padding-block: 0.25rem;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.035em;
  white-space: nowrap;
}
.brand-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding-block: 0.4rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--ink);
  white-space: nowrap;
}
.nav-cta svg { flex: none; transition: transform 0.25s var(--ease); }
.nav-cta:hover svg { transform: translateX(3px); }

/* Page */
.page-main { padding-block: 0.5rem clamp(4rem, 8vw, 7rem); }

.breadcrumb { padding-block: 0.5rem clamp(1.5rem, 3vw, 2.5rem); }
.breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.breadcrumb li { display: inline-flex; align-items: center; gap: 0.55rem; }
.breadcrumb li + li::before { content: "/"; color: var(--ink-3); }
.breadcrumb a { color: var(--ink-2); border-bottom: 1px solid transparent; }
.breadcrumb a:hover { color: var(--ink); border-color: var(--line); }
.breadcrumb [aria-current="page"] { color: var(--ink-3); }

.page-head {
  max-width: 68ch;
  padding-bottom: clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
}
.kicker {
  font-family: var(--mono);
  font-size: 0.6875rem;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.page-title {
  margin-top: 1rem;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
  font-weight: 600;
  text-wrap: balance;
}
.page-lede {
  margin-top: 1.4rem;
  max-width: 56ch;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.55;
  color: var(--ink-2);
}
.page-meta {
  margin-top: 1.5rem;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.page-content {
  max-width: 68ch;
  padding-top: clamp(2rem, 4vw, 3rem);
}
.page-content h2 {
  margin: 2.2rem 0 0.75rem;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
  font-weight: 500;
}
.page-content h2:first-child { margin-top: 0; }
.page-content h3 {
  margin: 1.6rem 0 0.5rem;
  font-size: 1.0625rem;
  line-height: 1.35;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.page-content p { margin-bottom: 1rem; color: var(--ink-2); }
.page-content p:last-child { margin-bottom: 0; }
.page-content ul { margin: 0 0 1rem; padding-left: 1.15rem; color: var(--ink-2); }
.page-content li { margin-bottom: 0.45rem; }
.page-content li:last-child { margin-bottom: 0; }
.page-content a { color: var(--ink); border-bottom: 1px solid var(--line); }
.page-content a:hover { border-color: var(--ink); }

.note {
  margin-top: 2rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-2);
}
.note p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--ink-2);
}
.note strong { color: var(--ink); font-weight: 500; }

.page-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.4rem;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 2.75rem;
  padding: 0.75rem 1.15rem;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.012em;
  transition: background-color 0.24s var(--ease), border-color 0.24s var(--ease);
}
.btn:hover { background: var(--accent); border-color: var(--accent); }
.btn svg { flex: none; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding-block: 0.2rem 0.35rem;
  font-size: 0.875rem;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.text-link:hover { color: var(--ink); border-color: var(--ink); }
.text-link svg { flex: none; transition: transform 0.24s var(--ease); }
.text-link:hover svg { transform: translateY(2px); }

.error-code {
  margin-bottom: 0.75rem;
  font-family: var(--mono);
  font-size: clamp(4rem, 16vw, 10rem);
  line-height: 0.85;
  letter-spacing: -0.08em;
  color: var(--ink);
}

/* Footer */
.site-footer {
  padding-block: 2.5rem 2rem;
  border-top: 1px solid var(--line);
  font-size: 0.8125rem;
  color: var(--ink-3);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem 2rem;
}
.footer-brand { max-width: 30ch; }
.footer-brand .brand { font-size: 0.9375rem; }
.footer-brand p {
  margin-top: 0.65rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--ink-3);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1.2rem;
}
.footer-links a { color: var(--ink-2); }
.footer-links a:hover { color: var(--ink); }
.footer-email { overflow-wrap: anywhere; }

@media (max-width: 520px) {
  .header-inner { align-items: flex-start; }
  .nav-cta { font-size: 0.8125rem; }
  .page-title { font-size: clamp(2.1rem, 11vw, 3rem); }
  .footer-inner { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}