/* ==========================================================================
   Base — reset, typography, layout primitives
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background: var(--bone);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--t-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 var(--s-4);
  text-wrap: balance;
}

h1 { font-size: var(--t-3xl); }
h2 { font-size: var(--t-2xl); }
h3 { font-size: var(--t-lg); }
h4 { font-size: var(--t-md); }

p  { margin: 0 0 var(--s-4); text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--brass-deep);
  text-decoration-color: color-mix(in srgb, var(--brass) 40%, transparent);
  text-underline-offset: 3px;
  transition: color .18s var(--ease), text-decoration-color .18s var(--ease);
}
a:hover { color: var(--brass); text-decoration-color: currentColor; }

img, picture, video, svg { max-width: 100%; height: auto; display: block; }

ul, ol { margin: 0 0 var(--s-4); padding-left: 1.25em; }
li { margin-bottom: var(--s-2); }
li:last-child { margin-bottom: 0; }

strong { font-weight: 650; color: var(--ink); }
small  { font-size: var(--t-sm); }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: var(--s-7) 0;
}

:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

::selection { background: var(--brass-soft); color: var(--ink); }

/* --- Layout ----------------------------------------------------------- */

.wrap      { width: min(100% - 2.5rem, var(--wrap));      margin-inline: auto; }
.wrap-wide { width: min(100% - 2.5rem, var(--wrap-wide)); margin-inline: auto; }
.wrap-text { width: min(100% - 2.5rem, var(--wrap-text)); margin-inline: auto; }

@media (max-width: 600px) {
  .wrap, .wrap-wide, .wrap-text { width: calc(100% - 2rem); }
}

.section       { padding-block: var(--section-y); }
.section-tight { padding-block: clamp(2.5rem, 1.5rem + 4vw, 4.5rem); }
.band          { background: var(--bone-2); }
.band-paper    { background: var(--paper); }

.stack > * + * { margin-top: var(--s-4); }
.stack-lg > * + * { margin-top: var(--s-6); }

.grid { display: grid; gap: var(--s-5); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }

.center     { text-align: center; }
.measure    { max-width: var(--wrap-text); }
.measure-c  { max-width: var(--wrap-text); margin-inline: auto; }

/* --- Utility type ------------------------------------------------------ */

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brass-deep);
  margin: 0 0 var(--s-3);
}

.lede {
  font-size: var(--t-md);
  line-height: 1.6;
  color: var(--ink-2);
}

.muted   { color: var(--ink-2); }
.subtle  { color: var(--ink-3); font-size: var(--t-sm); }
.mono    { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.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: absolute; left: var(--s-4); top: -100%;
  z-index: 200; padding: var(--s-3) var(--s-4);
  background: var(--paper); color: var(--ink);
  border-radius: var(--r-md); box-shadow: var(--shadow-md);
  font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: var(--s-4); }

/* --- Motion ------------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}