/* ============================================================
   Base
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--t-md);
  font-weight: 450;
  line-height: 1.55;
  letter-spacing: var(--tr-body);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

button,
input,
select {
  font: inherit;
  color: inherit;
}

/* Tracking and leading both scale with size: big type reads too loose and
   needs tightening, small type needs the space back. */
h1,
h2,
h3,
h4 {
  margin: 0;
  text-wrap: balance;
  font-weight: 800;
  font-optical-sizing: auto;
}
h1 { font-size: var(--t-3xl); letter-spacing: var(--tr-display); line-height: 1.02; }
h2 { font-size: var(--t-xl); letter-spacing: -0.028em; line-height: 1.1; }
h3 { font-size: var(--t-lg); letter-spacing: var(--tr-title); line-height: 1.2; }
h4 { font-size: var(--t-md); letter-spacing: -0.012em; line-height: 1.3; }

p { margin: 0; }

a {
  color: var(--green-ink);
  text-underline-offset: 3px;
}

.shell {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--shell);
}

.bay { padding-block: var(--bay); scroll-margin-top: 4.5rem; }

.bay-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.bay-head .more {
  font-size: var(--t-sm);
  font-weight: 650;
  color: var(--green-ink);
  text-decoration: none;
}
.bay-head .more:hover { text-decoration: underline; }

/* Tabular figures wherever numbers line up. */
.num {
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.eyebrow {
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--mute);
}

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

:where(a, button, input, select, [tabindex]):focus-visible {
  outline: 2.5px solid var(--green);
  outline-offset: 2px;
  border-radius: 4px;
}

/* -- buttons ---------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 46px;
  padding: 0.6rem 1.35rem;
  border: 1.5px solid var(--green);
  border-radius: var(--r-pill);
  background: var(--green);
  color: #fff;
  font-size: var(--t-md);
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
    transform 110ms var(--ease-press);
}
.btn:hover { background: var(--green-dark); border-color: var(--green-dark); }
/* Feedback on press, not on release — waiting for click feels dead. */
.btn:active { transform: scale(0.972); }

.btn--ghost {
  background: transparent;
  border-color: var(--rule-2);
  color: var(--ink);
}
.btn--ghost:hover { background: var(--surface); border-color: var(--ink); color: var(--ink); }

.btn--dark { background: var(--ink); border-color: var(--ink); }
.btn--dark:hover { background: #000; border-color: #000; }

.btn--sm { min-height: 40px; padding: 0.35rem 0.9rem; font-size: var(--t-sm); }
.btn[disabled] { opacity: 0.4; cursor: not-allowed; }

/* -- chips ------------------------------------------------ */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 40px;
  padding: 0.4rem 1rem;
  border: 1.5px solid var(--rule);
  border-radius: var(--r-pill);
  background: var(--white);
  color: var(--ink-2);
  font-size: var(--t-sm);
  font-weight: 650;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
    transform 110ms var(--ease-press);
}
.chip:hover { border-color: var(--green); color: var(--green-ink); }
.chip:active { transform: scale(0.96); }
.chip[aria-pressed="true"] {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

/* -- yield badge: the one earned flourish ----------------- */
.yield {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--r-sm);
  background: var(--green-tint);
  color: var(--green-ink);
  font-size: var(--t-xs);
  font-weight: 750;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Translucency is an enhancement, never a legibility dependency. */
@media (prefers-reduced-transparency: reduce) {
  .hdr,
  .catstrip {
    background: var(--white) !important;
    backdrop-filter: none !important;
  }
}

@media (prefers-contrast: more) {
  .card { border-color: var(--ink); }
  .chip,
  .icobtn,
  .search input { border-color: var(--ink-2); }
  .card__spec,
  .card__unit,
  .qnote { color: var(--ink-2); }
}