/* =============================================================================
   B&B Rivets — Parts, Tooling & Service
   Single stylesheet. No external requests, no imports, no web fonts.
   Safe to open from file://
   ============================================================================= */

/* ---------- 1. Tokens ---------------------------------------------------- */

:root {
  /* Ink & paper */
  --ink:            #15181b;
  --ink-2:          #2c333a;
  --muted:          #56606a;
  --muted-2:        #737d87;
  --paper:          #f3f1ec;
  --paper-2:        #eae7e0;
  --surface:        #ffffff;

  /* Structure */
  --line:           #d6d1c7;
  --line-strong:    #a9a294;
  --rule:           #15181b;

  /* Dark (steel) */
  --steel:          #1b2126;
  --steel-2:        #242c33;
  --steel-3:        #333d46;
  --steel-line:     #3c4650;
  --on-steel:       #eceae5;
  --on-steel-muted: #a7b0b9;

  /* Accent — oxide orange. Flat fills only, no gradients. */
  --accent:         #a8411a;
  --accent-dark:    #83300f;
  --accent-soft:    #f7ebe4;
  --accent-line:    #e0c2b2;

  /* Status */
  --notice-bg:      #fdf4dd;
  --notice-line:    #d9b96a;
  --notice-ink:     #6b4c05;
  --error:          #a01c1c;
  --error-bg:       #fceceb;

  /* Focus */
  --focus:          #12459b;
  --focus-dark:     #ffc44d;

  /* Type */
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
          "Liberation Mono", monospace;

  /* Metrics */
  --wrap: 1140px;
  --wrap-narrow: 760px;
  --gut: 24px;
}

/* ---------- 2. Reset / base --------------------------------------------- */

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  line-height: 1.14;
  letter-spacing: -0.018em;
  font-weight: 700;
  text-wrap: balance;
}

h1 { font-size: clamp(2rem, 5.2vw, 3.15rem); }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.15rem); }
h3 { font-size: 1.18rem; letter-spacing: -0.008em; }
h4 { font-size: 1rem; letter-spacing: 0; }

p  { margin: 0 0 1.1em; }
p:last-child, ul:last-child, ol:last-child { margin-bottom: 0; }

a { color: var(--accent-dark); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--ink); }

strong, b { font-weight: 700; }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2.5rem 0;
}

::selection { background: #ffe0a3; color: var(--ink); }

/* Focus — always visible, never removed. */
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 1px;
}
.dark :focus-visible,
.site-footer :focus-visible { outline-color: var(--focus-dark); }

/* ---------- 3. Layout helpers ------------------------------------------- */

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

.section { padding-block: clamp(3rem, 7vw, 5.25rem); }
.section--tight { padding-block: clamp(2.25rem, 4.5vw, 3.25rem); }
.section--paper2 { background: var(--paper-2); }
.section--surface { background: var(--surface); }
.section + .section { border-top: 1px solid var(--line); }

.dark {
  background: var(--steel);
  color: var(--on-steel);
  border-top: 0;
}
.dark h1, .dark h2, .dark h3 { color: #fff; }
.dark a { color: #f0b48f; }
.dark a:hover { color: #fff; }
.dark .lede, .dark .muted { color: var(--on-steel-muted); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: .75rem 1.1rem;
  font: 600 .9rem/1 var(--sans);
}
.skip-link:focus { left: 8px; top: 8px; }

/* ---------- 4. Type utilities ------------------------------------------- */

.eyebrow {
  font: 600 .72rem/1.2 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin: 0 0 .9rem;
  display: block;
}
.dark .eyebrow { color: #e79b6d; }

.section-head { max-width: 62ch; margin-bottom: 2.25rem; }
.section-head h2 { position: relative; padding-top: .9rem; }
.section-head h2::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 46px; height: 3px;
  background: var(--accent);
}
.dark .section-head h2::before { background: #e0752f; }

.lede {
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
  color: var(--muted);
  max-width: 60ch;
}
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.mono  { font-family: var(--mono); }

.stat-num {
  font: 700 clamp(1.9rem, 4vw, 2.6rem)/1 var(--sans);
  letter-spacing: -0.03em;
  display: block;
}

/* Numbered step marker (engineering-drawing feel) */
.step-no {
  font: 600 .72rem/1 var(--mono);
  letter-spacing: .14em;
  color: var(--accent-dark);
  display: block;
  margin-bottom: .7rem;
}

/* ---------- 5. Buttons --------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .85rem 1.5rem;
  font: 700 .95rem/1.25 var(--sans);
  letter-spacing: .01em;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color .12s linear, color .12s linear, border-color .12s linear;
}
.btn--primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn--primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }

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

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--ink); color: var(--ink); background: transparent; }

.dark .btn--ghost,
.hero .btn--ghost,
.page-head .btn--ghost,
.site-footer .btn--ghost { color: #fff; border-color: var(--steel-line); }
.dark .btn--ghost:hover,
.hero .btn--ghost:hover,
.page-head .btn--ghost:hover,
.site-footer .btn--ghost:hover { border-color: #fff; color: #fff; }

.btn--lg { padding: 1.05rem 1.9rem; font-size: 1rem; }
.btn--block { width: 100%; }

.btn-row { display: flex; flex-wrap: wrap; gap: .8rem; }

.arrow-link {
  display: inline-flex;
  align-items: baseline;
  gap: .4rem;
  font-weight: 700;
  font-size: .95rem;
  text-decoration: none;
  border-bottom: 2px solid var(--accent-line);
  padding-bottom: 2px;
}
.arrow-link:hover { border-bottom-color: var(--accent); }
.arrow-link::after { content: "\2192"; }

/* ---------- 6. Header / nav --------------------------------------------- */

.site-header {
  background: var(--steel);
  color: var(--on-steel);
  border-bottom: 3px solid var(--accent);
  position: relative;
}
.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 76px;
  padding-block: .6rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  text-decoration: none;
  color: #fff;
}
.brand__mark { flex: 0 0 auto; }
.brand__name {
  font: 800 1.22rem/1 var(--sans);
  letter-spacing: -0.02em;
  display: block;
}
.brand__sub {
  font: 600 .63rem/1.3 var(--mono);
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--on-steel-muted);
  display: block;
  margin-top: .3rem;
}

.nav { display: flex; align-items: center; gap: .35rem; }
.nav a {
  color: var(--on-steel);
  text-decoration: none;
  font: 600 .9rem/1 var(--sans);
  padding: .7rem .8rem;
  border-radius: 2px;
  white-space: nowrap;
}
.nav a:hover { color: #fff; background: var(--steel-2); }
.nav a[aria-current="page"] {
  color: #fff;
  box-shadow: inset 0 -3px 0 var(--accent);
}
.nav .btn { margin-left: .5rem; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: .5rem;
  background: transparent;
  color: #fff;
  border: 1px solid var(--steel-line);
  border-radius: 2px;
  padding: .6rem .8rem;
  font: 700 .85rem/1 var(--sans);
  cursor: pointer;
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 100%;
    z-index: 40;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--steel-2);
    border-bottom: 3px solid var(--accent);
    padding: .5rem var(--gut) 1rem;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: .9rem .25rem; border-bottom: 1px solid var(--steel-line); }
  .nav a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--accent); padding-left: .75rem; }
  .nav .btn { margin: .9rem 0 0; }
}

/* Thin utility strip above/below header content */
.util-strip {
  background: var(--steel-2);
  border-bottom: 1px solid var(--steel-line);
  color: var(--on-steel-muted);
  font: 600 .78rem/1.4 var(--mono);
  letter-spacing: .04em;
}
.util-strip .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem 1.6rem;
  justify-content: space-between;
  padding-block: .55rem;
}
.util-strip a { color: #fff; text-decoration: none; }
.util-strip a:hover { text-decoration: underline; }
.util-strip__set { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; }

/* ---------- 7. Hero ------------------------------------------------------ */

.hero {
  background: var(--steel);
  color: var(--on-steel);
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 7vw, 5.5rem);
}
/* Rivet-head dot grid, pure CSS — no image requests. */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.13) 1.4px, transparent 1.5px);
  background-size: 22px 22px;
  pointer-events: none;
}
.hero > .wrap { position: relative; z-index: 1; }

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 880px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__art { order: -1; }
}

.hero h1 { color: #fff; }
.hero__kicker {
  font: 600 .74rem/1.3 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #e79b6d;
  margin: 0 0 1rem;
  display: block;
}
.hero__lede {
  font-size: clamp(1.05rem, 1.9vw, 1.25rem);
  color: var(--on-steel-muted);
  max-width: 54ch;
  margin-bottom: 1.9rem;
}
.hero__note {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--steel-line);
  font-size: .9rem;
  color: var(--on-steel-muted);
  max-width: 52ch;
}
.hero__art {
  background: var(--steel-2);
  border: 1px solid var(--steel-line);
  border-radius: 2px;
  padding: 1.25rem;
}
.hero__art figcaption {
  font: 600 .7rem/1.5 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--on-steel-muted);
  margin-top: .9rem;
  padding-top: .75rem;
  border-top: 1px solid var(--steel-line);
}

/* Page header for interior pages */
.page-head {
  background: var(--steel);
  color: var(--on-steel);
  padding-block: clamp(2.4rem, 5vw, 3.6rem);
  position: relative;
  overflow: hidden;
}
.page-head::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.10) 1.3px, transparent 1.4px);
  background-size: 22px 22px;
}
.page-head > .wrap { position: relative; z-index: 1; }
.page-head h1 { color: #fff; max-width: 20ch; }
.page-head .lede { color: var(--on-steel-muted); }

.breadcrumb {
  font: 600 .74rem/1.4 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--on-steel-muted);
  margin: 0 0 1.1rem;
}
.breadcrumb ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.breadcrumb li + li::before { content: "/"; margin-right: .5rem; color: var(--steel-line); }
.breadcrumb a { color: var(--on-steel-muted); text-decoration: none; }
.breadcrumb a:hover { color: #fff; text-decoration: underline; }

/* ---------- 8. Cards & grids --------------------------------------------- */

.grid { display: grid; gap: 1.25rem; }
.grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
@media (max-width: 900px) { .grid--4 { grid-template-columns: repeat(2, minmax(0,1fr)); } .grid--3 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 620px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--ink);
  border-radius: 2px;
  padding: 1.5rem 1.4rem;
}
.card h3 { margin-bottom: .45rem; }
.card p { color: var(--muted); font-size: .95rem; }
.card--accent { border-top-color: var(--accent); }
.card__icon { margin-bottom: 1rem; display: block; }

.card--link { display: flex; flex-direction: column; gap: .2rem; }
.card--link .arrow-link { margin-top: auto; padding-top: 1rem; align-self: flex-start; }

.dark .card {
  background: var(--steel-2);
  border-color: var(--steel-line);
  border-top-color: #e0752f;
}
.dark .card p { color: var(--on-steel-muted); }

/* Spec-sheet style definition list */
.spec {
  border-top: 2px solid var(--ink);
  margin: 0;
}
.spec > div {
  display: grid;
  grid-template-columns: minmax(140px, 26%) 1fr;
  gap: 1rem;
  padding: .85rem 0;
  border-bottom: 1px solid var(--line);
}
@media (max-width: 560px) { .spec > div { grid-template-columns: 1fr; gap: .2rem; } }
.spec dt {
  font: 600 .74rem/1.5 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}
.spec dd { margin: 0; }
.dark .spec { border-top-color: var(--steel-line); }
.dark .spec > div { border-bottom-color: var(--steel-line); }
.dark .spec dt { color: var(--on-steel-muted); }

/* Checklist */
.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li {
  position: relative;
  padding-left: 1.9rem;
  margin-bottom: .7rem;
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: .55em;
  width: 10px; height: 10px;
  background: var(--accent);
  transform: translateY(-50%);
}
.dark .checklist li::before { background: #e0752f; }

/* Tag row */
.tags { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; margin: 0; padding: 0; }
.tags li {
  font: 600 .8rem/1 var(--sans);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  padding: .5rem .7rem;
  background: var(--surface);
}
.dark .tags li { background: var(--steel-2); border-color: var(--steel-line); color: var(--on-steel); }

/* Numbered steps */
.steps { display: grid; gap: 1.25rem; grid-template-columns: repeat(3, minmax(0,1fr)); counter-reset: step; }
@media (max-width: 780px) { .steps { grid-template-columns: 1fr; } }
.steps > li {
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 1.4rem;
}
.dark .steps > li { background: var(--steel-2); border-color: var(--steel-line); }

/* Callout */
.callout {
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-left: 4px solid var(--accent);
  border-radius: 2px;
  padding: 1.25rem 1.4rem;
}
.callout h3 { margin-bottom: .4rem; }
.dark .callout {
  background: rgba(224,117,47,.10);
  border-color: rgba(224,117,47,.4);
  border-left-color: #e0752f;
}

/* Stats strip */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1.5rem; }
@media (max-width: 800px) { .stats { grid-template-columns: repeat(2, minmax(0,1fr)); } }
.stats > div { border-top: 3px solid var(--accent); padding-top: .9rem; }
.stats p { font-size: .88rem; color: var(--muted); margin: .3rem 0 0; }
.dark .stats p { color: var(--on-steel-muted); }

/* ---------- 9. Forms ----------------------------------------------------- */

.form-shell {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent);
  border-radius: 2px;
  padding: clamp(1.4rem, 3.5vw, 2.4rem);
}

fieldset {
  border: 0;
  margin: 0 0 1.9rem;
  padding: 1.6rem 0 0;
  min-width: 0;
  position: relative;
}
/* Full-width rule above the legend. Drawn as a pseudo-element rather than a
   fieldset border so the legend does not cut a notch out of it. */
fieldset::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--line);
}
fieldset:first-of-type { padding-top: 0; }
fieldset:first-of-type::before { display: none; }

legend {
  font: 700 1.05rem/1.3 var(--sans);
  letter-spacing: -0.01em;
  padding: 0;
  margin-bottom: .3rem;
}
.legend-note {
  font-size: .9rem;
  color: var(--muted);
  margin: 0 0 1.25rem;
  max-width: 62ch;
}

.field { margin-bottom: 1.15rem; }
.field:last-child { margin-bottom: 0; }

.field > label,
.field-label {
  display: block;
  font: 700 .88rem/1.4 var(--sans);
  margin-bottom: .35rem;
}
.req { color: var(--accent-dark); font-weight: 700; }
.opt {
  font: 600 .72rem/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-left: .4rem;
}
.hint {
  display: block;
  font-size: .85rem;
  color: var(--muted);
  margin: 0 0 .45rem;
}

input[type="text"], input[type="email"], input[type="tel"], input[type="number"],
input[type="url"], input[type="search"], select, textarea {
  width: 100%;
  font: 400 1rem/1.45 var(--sans);
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  padding: .7rem .75rem;
  transition: border-color .12s linear, box-shadow .12s linear;
}
textarea { min-height: 118px; resize: vertical; }
select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--ink) 50%),
    linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% + 1px), calc(100% - 12px) calc(50% + 1px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 2.4rem;
}
input:hover, select:hover, textarea:hover { border-color: var(--ink-2); }
input:focus, select:focus, textarea:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 3px rgba(18,69,155,.18);
  outline: none;
}
input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 1px;
}

input[type="file"] {
  width: 100%;
  font: 400 .92rem/1.4 var(--sans);
  border: 1px dashed var(--line-strong);
  border-radius: 2px;
  padding: .8rem;
  background: var(--paper);
}

/* Two-up field rows */
.field-row { display: grid; gap: 1.15rem; grid-template-columns: repeat(2, minmax(0,1fr)); margin-bottom: 1.15rem; }
.field-row--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.field-row .field { margin-bottom: 0; }
@media (max-width: 640px) { .field-row, .field-row--3 { grid-template-columns: 1fr; } }

/* Check / radio groups */
.choices { display: grid; gap: .55rem; grid-template-columns: repeat(2, minmax(0,1fr)); margin-top: .5rem; }
@media (max-width: 640px) { .choices { grid-template-columns: 1fr; } }
.choice {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  padding: .7rem .8rem;
  background: var(--surface);
  cursor: pointer;
  font-size: .95rem;
  line-height: 1.4;
}
.choice:hover { border-color: var(--ink-2); }
.choice input { margin: .18rem 0 0; width: 18px; height: 18px; flex: 0 0 auto; accent-color: var(--accent); }
.choice input:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.choice:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.choice__sub { display: block; font-size: .82rem; color: var(--muted); margin-top: .15rem; }

/* Inline validation */
.field-error {
  display: none;
  font: 700 .84rem/1.4 var(--sans);
  color: var(--error);
  margin-top: .35rem;
}
.field.has-error .field-error,
[data-require-one].has-error > .field-error { display: block; }
[data-require-one].has-error > .field-error { margin-top: .75rem; }
.field.has-error input,
.field.has-error select,
.field.has-error textarea { border-color: var(--error); background: var(--error-bg); }

.form-error-summary {
  display: none;
  border: 2px solid var(--error);
  background: var(--error-bg);
  border-radius: 2px;
  padding: 1rem 1.15rem;
  margin-bottom: 1.5rem;
}
.form-error-summary.is-visible { display: block; }
.form-error-summary h3 { color: var(--error); font-size: 1rem; margin-bottom: .4rem; }
.form-error-summary ul { margin: 0; padding-left: 1.2rem; font-size: .92rem; }

/* Progressive-disclosure block ("I don't know the model") */
.reveal { display: none; margin-top: 1.15rem; }
.reveal.is-open { display: block; }
.reveal-inner {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 2px;
  padding: 1.15rem 1.25rem;
}

/* Build-time notice (endpoint not configured, etc.) */
.notice {
  border: 1px solid var(--notice-line);
  background: var(--notice-bg);
  color: var(--notice-ink);
  border-radius: 2px;
  padding: .9rem 1.05rem;
  font-size: .9rem;
  margin-bottom: 1.5rem;
}
.notice strong { color: var(--notice-ink); }
.notice code { background: rgba(0,0,0,.06); padding: .1em .35em; border-radius: 2px; font-family: var(--mono); font-size: .93em; }

/* Honeypot — hidden from humans, present for bots. */
.hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  overflow: hidden;
}

.form-actions {
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
  margin-top: .5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}
.form-actions .small { color: var(--muted); max-width: 42ch; }

/* Shown only when JavaScript is unavailable (see the <noscript> block in each
   page's <head>). Hidden by default. */
.noscript-fallback {
  display: none;
  border: 2px solid var(--ink);
  border-radius: 2px;
  padding: 1.25rem 1.4rem;
  background: var(--surface);
  margin-bottom: 1.5rem;
}

/* ---------- 10. Footer --------------------------------------------------- */

.site-footer {
  background: var(--steel);
  color: var(--on-steel-muted);
  padding-block: 3rem 2rem;
  font-size: .92rem;
}
.site-footer h2, .site-footer h3 { color: #fff; }
.site-footer a { color: var(--on-steel); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0,1.5fr) repeat(3, minmax(0,1fr));
  gap: 2rem;
  padding-bottom: 2.25rem;
  border-bottom: 1px solid var(--steel-line);
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-grid h3 {
  font: 600 .72rem/1.3 var(--mono);
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--on-steel-muted);
  margin-bottom: .9rem;
}
.footer-list { list-style: none; margin: 0; padding: 0; }
.footer-list li { margin-bottom: .55rem; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .75rem 2rem;
  padding-top: 1.5rem;
  font: 600 .78rem/1.5 var(--mono);
  letter-spacing: .04em;
}

/* ---------- 11. Misc ----------------------------------------------------- */

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.rule-heavy { border: 0; border-top: 3px solid var(--ink); margin: 0 0 1.5rem; }

.prose h2 { margin-top: 2.5rem; }
.prose h3 { margin-top: 1.9rem; }
.prose ul, .prose ol { padding-left: 1.25rem; }
.prose li { margin-bottom: .5rem; }

@media print {
  .site-header, .site-footer, .util-strip, .nav-toggle { display: none; }
  body { background: #fff; font-size: 12pt; }
  .hero, .page-head, .dark { background: #fff !important; color: #000 !important; }
  .hero h1, .page-head h1, .dark h2, .dark h3 { color: #000 !important; }
}