/* ==========================================================================
   FLASHPOINT PCBA — components
   Every class here is authored for this site. Page authors (Phase 3) compose
   pages from this vocabulary; nothing else may be invented per page except
   genuinely page-specific layout under a .p-<slug> block.
   ========================================================================== */

/* ==========================================================================
   1 · Navigation  (single template — identical on every page, 红线 3)
   ========================================================================== */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--c-graphite-900);
  border-bottom: 1px solid #1E282C;
  color: #E9EEF0;
}
.site-nav__bar {
  display: flex; align-items: center; gap: var(--sp-5);
  min-height: var(--nav-h);
  max-width: var(--w-wide); margin-inline: auto; padding-inline: var(--gutter);
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; flex: none; color: #fff; }
.brand:hover { color: #fff; }
.brand__mark { width: 34px; height: 34px; flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__name { font-weight: 700; font-size: 1.0625rem; letter-spacing: 0.01em; }
.brand__sub {
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--c-ignite); margin-top: 4px;
}
.nav-list { display: flex; align-items: center; gap: 0.15rem; list-style: none; margin: 0 auto 0 0; padding: 0; }
.nav-item { position: relative; margin: 0; }
.nav-link {
  display: inline-flex; align-items: center; gap: 0.35rem;
  min-height: 40px; padding: 0.5rem 0.7rem;
  font-size: var(--fs-sm); font-weight: 500; color: #D6DEE1; border-radius: var(--r-sharp);
}
.nav-link:hover, .nav-item.is-open > .nav-link { color: #fff; background: #1B2529; }
.nav-link[aria-current="page"] { color: var(--c-ignite); }
.nav-link__caret { font-family: var(--font-mono); font-size: 0.6rem; opacity: .7; }
.nav-drop {
  position: absolute; top: 100%; left: 0; min-width: 244px;
  background: var(--c-graphite-800); border: 1px solid #27343A;
  padding: 0.5rem; margin: 0; list-style: none;
  box-shadow: 0 24px 48px -28px rgba(0,0,0,.9);
  display: none;
}
.nav-item.is-open > .nav-drop, .nav-item:hover > .nav-drop { display: block; }
.nav-drop a {
  display: block; padding: 0.55rem 0.65rem; font-size: var(--fs-sm); color: #C9D3D6;
  border-left: 2px solid transparent;
}
.nav-drop a:hover { background: #1B2529; color: #fff; border-left-color: var(--c-ignite); }
.nav-drop__hint {
  display: block; font-family: var(--font-mono); font-size: var(--fs-xs);
  color: #7E8A8E; margin-top: 3px;
}
.nav-tail { display: flex; align-items: center; gap: var(--sp-3); flex: none; }
.nav-phone { font-family: var(--font-mono); font-size: var(--fs-xs); color: #A6B1B5; letter-spacing: .04em; }
.nav-phone:hover { color: var(--c-ignite); }
.nav-toggle {
  display: none; width: 44px; height: 44px; flex: none;
  background: transparent; border: 1px solid #33454B; color: #E9EEF0;
  border-radius: var(--r-sharp); cursor: pointer; padding: 0;
}
.nav-toggle__bars { display: block; width: 20px; height: 2px; margin: 0 auto; background: currentColor; position: relative; }
.nav-toggle__bars::before, .nav-toggle__bars::after {
  content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: currentColor;
}
.nav-toggle__bars::before { top: -6px; } .nav-toggle__bars::after { top: 6px; }
.nav-drawer { display: none; background: var(--c-graphite-900); border-top: 1px solid #1E282C; }
.nav-drawer.is-open { display: block; }
.nav-drawer ul { list-style: none; margin: 0; padding: 0.5rem var(--gutter) 1.25rem; }
.nav-drawer li { margin: 0; }
.nav-drawer a { display: block; padding: 0.7rem 0; font-size: 1rem; color: #D6DEE1; border-bottom: 1px solid #1B2529; }
.nav-drawer a:hover { color: var(--c-ignite); }
.nav-drawer .nav-drawer__group {
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: var(--track-wide);
  text-transform: uppercase; color: var(--c-ignite); padding-top: 1rem;
}
@media (max-width: 1120px) {
  .nav-list, .nav-phone { display: none; }
  .nav-toggle { display: block; }
  .nav-tail { margin-left: auto; }
}
/* Below 700px the bar must fit logo + CTA + 44px toggle inside 375px minus gutter. */
@media (max-width: 700px) {
  .site-nav__bar { gap: 0.6rem; }
  .brand__sub { display: none; }
  .nav-tail { gap: 0.5rem; }
  .nav-tail .btn { padding: 0.5rem 0.7rem; font-size: var(--fs-xs); min-height: 40px; }
}
@media (max-width: 380px) {
  .nav-tail .btn { display: none; }
  .brand__name { font-size: 1rem; }
}

/* ==========================================================================
   2 · Page head (interior pages)
   ========================================================================== */
.page-head { background: var(--c-graphite-900); color: #E9EEF0; padding-block: clamp(2.5rem, 4.6vw, 4.5rem) clamp(2rem, 3.4vw, 3.25rem); }
.page-head__grid { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(0,1fr); gap: clamp(1.5rem,4vw,4rem); align-items: end; }
.page-head h1 { font-size: var(--fs-h1); }
.page-head__sub { font-size: var(--fs-lead); color: #A6B1B5; max-width: 46rem; margin-top: var(--sp-4); }
.page-head__rail { display: grid; gap: 0; border-top: 1px solid #27343A; }
.page-head__rail div { display: flex; justify-content: space-between; gap: var(--sp-4); padding: 0.6rem 0; border-bottom: 1px solid #27343A; }
.page-head__rail dt, .page-head__rail .k {
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .08em;
  text-transform: uppercase; color: #7E8A8E;
}
.page-head__rail dd, .page-head__rail .v { margin: 0; font-family: var(--font-mono); font-size: var(--fs-sm); color: #E9EEF0; text-align: right; }
@media (max-width: 900px) { .page-head__grid { grid-template-columns: minmax(0,1fr); } }

.breadcrumbs { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; list-style: none; margin: 0 0 var(--sp-4); padding: 0; font-family: var(--font-mono); font-size: var(--fs-xs); color: #7E8A8E; }
.breadcrumbs li { margin: 0; }
.breadcrumbs li + li::before { content: "/"; margin-right: 0.4rem; color: #4A5A60; }
.breadcrumbs a { color: #A6B1B5; }
.breadcrumbs a:hover { color: var(--c-ignite); }

/* ==========================================================================
   3 · Hero
   ========================================================================== */
.hero { position: relative; background: var(--c-graphite-900); color: #F1F4F5; overflow: hidden; }
.hero__media { position: absolute; inset: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, #0C1012 0%, rgba(12,16,18,.94) 34%, rgba(12,16,18,.42) 62%, rgba(12,16,18,.12) 100%);
}
.hero__inner { position: relative; padding-block: clamp(3rem, 7vw, 7rem) clamp(2.5rem, 5vw, 5rem); }
.hero__body { max-width: 44rem; }
.hero__title { font-size: var(--fs-display); line-height: 1.02; letter-spacing: -0.022em; }
.hero__title em { font-style: normal; color: var(--c-ignite); }
.hero__sub { font-size: var(--fs-lead); color: #B9C4C8; margin-top: var(--sp-5); max-width: 40rem; }
.hero__cta { margin-top: var(--sp-6); }
.hero__facts {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px;
  background: #27343A; border: 1px solid #27343A; margin-top: clamp(2.25rem, 4vw, 3.5rem);
}
.hero__facts div { background: rgba(12,16,18,.72); padding: var(--sp-4); }
.hero__facts dt, .hero__facts .k {
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .08em;
  text-transform: uppercase; color: #839196;
}
.hero__facts dd, .hero__facts .v {
  margin: 0.35rem 0 0; font-family: var(--font-mono); font-size: 1.35rem;
  color: #fff; font-variant-numeric: tabular-nums;
}
@media (max-width: 820px) {
  .hero__scrim { background: linear-gradient(180deg, rgba(12,16,18,.82) 0%, rgba(12,16,18,.94) 55%, #0C1012 100%); }
  .hero__facts { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

/* ==========================================================================
   4 · Media frames — container ratio ALWAYS equals the source ratio (红线 5)
   ========================================================================== */
.media { position: relative; overflow: hidden; background: var(--c-graphite-700); border-radius: var(--r-sharp); }
.media img { width: 100%; height: 100%; object-fit: cover; }
.media--3x2 { aspect-ratio: 3 / 2; }
.media--2x3 { aspect-ratio: 2 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--4x5 { aspect-ratio: 4 / 5; }
.media--border { border: 1px solid var(--line); }
.media__tag {
  position: absolute; left: 0; bottom: 0; z-index: 2;
  background: var(--c-graphite-900); color: #D6DEE1;
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .06em;
  padding: 0.35rem 0.6rem;
}
figure.figure { margin: 0; }
figure.figure figcaption {
  margin-top: var(--sp-3); font-size: var(--fs-sm); color: var(--fg-muted);
  border-left: 2px solid var(--c-ignite); padding-left: var(--sp-3);
}

/* ==========================================================================
   5 · Cards
   ========================================================================== */
.card {
  background: var(--bg-raised); border: 1px solid var(--line);
  border-radius: var(--r-sharp); padding: var(--sp-5);
  display: flex; flex-direction: column; gap: var(--sp-3);
  transition: border-color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
}
.card--flush { padding: 0; overflow: hidden; }
.card--flush .card__body { padding: var(--sp-5); }
.card--link:hover { border-color: var(--c-ignite); transform: translateY(-2px); }
.card__title { font-size: var(--fs-h3); }
.card__meta { font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .06em; text-transform: uppercase; color: var(--fg-faint); }
.card__body p { font-size: var(--fs-sm); color: var(--fg-muted); }
.card__foot { margin-top: auto; padding-top: var(--sp-3); }
.card--dark { background: var(--c-graphite-800); border-color: #27343A; color: #E9EEF0; }
.card--dark .card__body p, .card--dark p { color: #A6B1B5; }

/* Compact index row (capability / industry lists) */
.index-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.index-list li { margin: 0; border-bottom: 1px solid var(--line); }
.index-list a {
  display: grid; grid-template-columns: 3.5rem minmax(0,1fr) auto; gap: var(--sp-4);
  align-items: baseline; padding: var(--sp-4) 0; color: var(--fg);
}
.index-list a:hover { color: var(--c-ignite); }
.index-list .n { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--fg-faint); }
.index-list .t { font-size: 1.0625rem; font-weight: 600; }
.index-list .d { font-size: var(--fs-sm); color: var(--fg-muted); display: block; margin-top: 4px; font-weight: 400; }
.index-list .go { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--c-ignite); }
@media (max-width: 700px) { .index-list a { grid-template-columns: 2.5rem minmax(0,1fr); } .index-list .go { display: none; } }

/* ==========================================================================
   6 · Stats, chips, fact rails
   ========================================================================== */
.stat-strip { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px; background: var(--line); border-block: 1px solid var(--line); }
.stat-strip > div { background: var(--bg); padding: var(--sp-5) var(--sp-4); }
.stat-strip dt, .stat-strip .k { font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .08em; text-transform: uppercase; color: var(--fg-muted); }
.stat-strip dd, .stat-strip .v { margin: var(--sp-2) 0 0; font-family: var(--font-mono); font-size: clamp(1.4rem,2.2vw,1.9rem); font-variant-numeric: tabular-nums; }
@media (max-width: 900px) { .stat-strip { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 520px) { .stat-strip { grid-template-columns: minmax(0,1fr); } }

.chip {
  display: inline-flex; align-items: center; gap: 0.4rem;
  min-height: 28px;
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .04em;
  padding: 0.25rem 0.5rem; border: 1px solid var(--line-strong); border-radius: var(--r-sharp);
  color: var(--fg-muted); background: var(--bg-raised);
}
.chip--pass { color: var(--c-pass); border-color: #9CCDB4; background: var(--c-pass-soft); }
.chip--accent { color: var(--c-ignite-deep); border-color: #F3B79C; background: var(--c-ignite-soft); }
/* A link inside a chip is blockified by the flex container, so it needs its own
   24px hit box (WCAG 2.5.8) rather than inheriting the inline-text exemption. */
.chip > a, .chip > span { display: flex; align-items: center; min-height: 24px; }
.chip-row { display: flex; flex-wrap: wrap; gap: var(--sp-2); }

.fact-rail { display: grid; gap: 0; border-top: 1px solid var(--line); margin: 0; }
.fact-rail > div, .fact-rail__row { display: flex; justify-content: space-between; gap: var(--sp-4); padding: 0.6rem 0; border-bottom: 1px solid var(--line); }
.fact-rail dt { font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .06em; text-transform: uppercase; color: var(--fg-muted); margin: 0; }
.fact-rail dd { margin: 0; font-family: var(--font-mono); font-size: var(--fs-sm); text-align: right; }
.fact-rail--tight > div { padding: 0.4rem 0; }

/* ==========================================================================
   7 · Tables (spec / matrix) — the workhorse of a technical B2B page
   ========================================================================== */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); background: var(--bg-raised); }
table.spec { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
table.spec caption {
  caption-side: top; text-align: left; padding: var(--sp-3) var(--sp-4);
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .08em;
  text-transform: uppercase; color: var(--fg-muted); border-bottom: 1px solid var(--line);
}
table.spec th, table.spec td { padding: 0.7rem var(--sp-4); text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
table.spec thead th {
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .06em;
  text-transform: uppercase; color: var(--fg-muted); background: var(--bg-alt); font-weight: 500;
  position: sticky; top: 0;
}
table.spec tbody tr:last-child th, table.spec tbody tr:last-child td { border-bottom: 0; }
table.spec td.n, table.spec .n { font-family: var(--font-mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
table.spec tbody th { font-weight: 600; }
table.spec tbody tr:hover { background: var(--bg-alt); }
.spec--matrix td.pass { color: var(--c-pass); font-weight: 600; }
.spec--matrix td.no { color: var(--fg-faint); }

/* ==========================================================================
   8 · Process steps
   ========================================================================== */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: st; }
.steps > li {
  position: relative; margin: 0; padding: 0 0 var(--sp-6) 3.25rem; border-left: 1px solid var(--line);
}
.steps > li:last-child { padding-bottom: 0; border-left-color: transparent; }
.steps > li::before {
  counter-increment: st; content: counter(st, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  width: 2.4rem; height: 2.4rem; display: grid; place-items: center;
  background: var(--c-graphite-900); color: #fff; border-radius: var(--r-sharp);
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .04em;
}
.steps h3 { margin-bottom: var(--sp-2); }
.steps .when { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--c-ignite); display: block; margin-bottom: var(--sp-2); letter-spacing: .06em; }
.steps p { font-size: var(--fs-sm); color: var(--fg-muted); }
.steps--compact > li { padding-bottom: var(--sp-5); }

/* Horizontal variant */
.steps-h { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.steps-h > li { margin: 0; background: var(--bg); padding: var(--sp-5) var(--sp-4); }
.steps-h .n { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--c-ignite); display: block; margin-bottom: var(--sp-3); }
.steps-h h3 { font-size: 1.0625rem; margin-bottom: var(--sp-2); }
.steps-h p { font-size: var(--fs-sm); color: var(--fg-muted); margin: 0; }
@media (max-width: 1000px) { .steps-h { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 620px) { .steps-h { grid-template-columns: minmax(0,1fr); } }

/* ==========================================================================
   9 · Fab note / callout / gate list
   ========================================================================== */
.note {
  border: 1px solid var(--line-strong); border-left: 4px solid var(--c-ignite);
  background: var(--bg-raised); padding: var(--sp-5);
}
.note__label {
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: var(--track-wide);
  text-transform: uppercase; color: var(--c-ignite); display: block; margin-bottom: var(--sp-3);
}
.note p:last-child { margin-bottom: 0; }
.note--dark { background: var(--c-graphite-800); border-color: #33454B; border-left-color: var(--c-ignite); color: #E9EEF0; }
.note--dark p { color: #C4CED2; }

.gate-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.gate-list li {
  display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: var(--sp-4);
  align-items: start; margin: 0; padding: var(--sp-4) 0; border-bottom: 1px solid var(--line);
}
.gate-list .g-id { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--fg-faint); padding-top: 3px; }
.gate-list .g-t { font-weight: 600; }
.gate-list .g-d { font-size: var(--fs-sm); color: var(--fg-muted); display: block; margin-top: 3px; font-weight: 400; }
@media (max-width: 640px) { .gate-list li { grid-template-columns: minmax(0,1fr) auto; } .gate-list .g-id { display: none; } }

.checklist { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: var(--sp-2) var(--sp-5); }
.checklist li { position: relative; margin: 0; padding-left: 1.45rem; font-size: var(--fs-sm); color: var(--fg-muted); }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--c-ignite); font-family: var(--font-mono); }
@media (max-width: 720px) { .checklist { grid-template-columns: minmax(0,1fr); } }
.checklist--dark li { color: #A6B1B5; }

/* ==========================================================================
   10 · Accordion (FAQ)
   ========================================================================== */
.acc { border-top: 1px solid var(--line); }
.acc__item { border-bottom: 1px solid var(--line); }
.acc__btn {
  width: 100%; display: flex; justify-content: space-between; align-items: flex-start; gap: var(--sp-5);
  background: none; border: 0; padding: var(--sp-5) 0; text-align: left; cursor: pointer;
  font-family: var(--font-sans); font-size: 1.0625rem; font-weight: 600; color: var(--fg); line-height: 1.4;
}
.acc__btn:hover { color: var(--c-ignite); }
.acc__sign { font-family: var(--font-mono); font-size: 1.15rem; color: var(--c-ignite); flex: none; line-height: 1; }
.acc__panel { display: none; padding: 0 var(--sp-6) var(--sp-5) 0; color: var(--fg-muted); }
.acc__panel.is-open { display: block; }
.acc__panel p { font-size: var(--fs-sm); }
.acc__panel > *:last-child { margin-bottom: 0; }

/* ==========================================================================
   11 · Split media + text
   ========================================================================== */
.split { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: clamp(1.75rem,4vw,4rem); align-items: center; }
.split--media-right .split__media { order: 2; }
.split--top { align-items: start; }
@media (max-width: 940px) { .split { grid-template-columns: minmax(0,1fr); } .split--media-right .split__media { order: 0; } }
.split__body h2 + .lead, .split__body h2 + p { margin-top: var(--sp-4); }

/* ==========================================================================
   12 · CTA band
   ========================================================================== */
.band-cta { position: relative; background: var(--c-graphite-900); color: #F1F4F5; overflow: hidden; }
.band-cta__media { position: absolute; inset: 0; }
.band-cta__media img { width: 100%; height: 100%; object-fit: cover; opacity: .5; }
.band-cta__inner { position: relative; padding-block: clamp(3rem,6vw,5.5rem); }
.band-cta h2 { font-size: var(--fs-h2); max-width: 40rem; }
.band-cta p { color: #B9C4C8; max-width: 40rem; margin-top: var(--sp-4); }
.band-cta__row { display: flex; flex-wrap: wrap; gap: clamp(1.5rem,4vw,3.5rem); justify-content: space-between; align-items: center; }
.band-cta__facts { display: flex; flex-wrap: wrap; gap: var(--sp-5); font-family: var(--font-mono); font-size: var(--fs-xs); color: #839196; }
.band-cta__facts strong { display: block; color: #fff; font-size: 1.15rem; font-weight: 500; margin-top: 4px; }

/* ==========================================================================
   13 · Footer (single template — 红线 3)
   ========================================================================== */
.site-foot { background: var(--c-graphite-950); color: #98A3A7; font-size: var(--fs-sm); }
.site-foot a { color: #C4CED2; }
.site-foot a:hover { color: var(--c-ignite); }
.site-foot__top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: clamp(1.5rem,4vw,3rem); padding-block: clamp(2.5rem,5vw,4rem); }
.site-foot h2, .site-foot h3, .site-foot .fcol__h {
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: var(--track-wide);
  text-transform: uppercase; color: #E9EEF0; margin-bottom: var(--sp-4); font-weight: 500;
}
.site-foot ul { list-style: none; margin: 0; padding: 0; }
.site-foot li { margin: 0 0 0.55rem; }
.site-foot__brand p { max-width: 24rem; color: #8A9599; }
.site-foot .brand { margin-bottom: var(--sp-4); }
.site-foot__compliance {
  display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; padding-block: var(--sp-4);
  border-top: 1px solid #1C2528; border-bottom: 1px solid #1C2528;
  font-family: var(--font-mono); font-size: var(--fs-xs); color: #839196; letter-spacing: .04em;
}
.site-foot__legal { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; justify-content: space-between; padding-block: var(--sp-5); }
.site-foot__legal p { margin: 0; font-size: var(--fs-xs); color: #6F7B7F; }
.site-foot__legal ul { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; }
.site-foot__legal li { margin: 0; }
.site-foot address { font-style: normal; line-height: 1.7; }
/* WCAG 2.5.8: standalone contact links outside a paragraph must clear 24px tall. */
.site-foot address a { display: inline-block; min-height: 24px; line-height: 24px; }
@media (max-width: 1000px) { .site-foot__top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .site-foot__top { grid-template-columns: 1fr; } }

/* ==========================================================================
   14 · Forms, contact blocks, related links
   ========================================================================== */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0 var(--sp-5); }
.form-grid .field--full { grid-column: 1 / -1; }
@media (max-width: 720px) { .form-grid { grid-template-columns: minmax(0,1fr); } }
.form-card { background: var(--bg-raised); border: 1px solid var(--line); padding: clamp(1.25rem,3vw,2.25rem); }
.form-aside { border-left: 4px solid var(--c-ignite); background: var(--bg-alt); padding: var(--sp-5); }

.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: var(--sp-5); }
@media (max-width: 900px) { .contact-grid { grid-template-columns: minmax(0,1fr); } }

.related { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: var(--sp-5); }
@media (max-width: 900px) { .related { grid-template-columns: minmax(0,1fr); } }

/* ==========================================================================
   15 · Blog / article
   ========================================================================== */
.post-head { background: var(--c-graphite-900); color: #E9EEF0; padding-block: clamp(2.25rem,4.2vw,4rem); }
.post-head h1 { font-size: var(--fs-h1); max-width: 48rem; }
.post-head__meta { font-family: var(--font-mono); font-size: var(--fs-xs); color: #839196; letter-spacing: .05em; margin-top: var(--sp-4); display: flex; flex-wrap: wrap; gap: 0.4rem 1.25rem; }
.post-layout { display: grid; grid-template-columns: minmax(0,1fr) 20rem; gap: clamp(2rem,5vw,4.5rem); align-items: start; }
@media (max-width: 1000px) { .post-layout { grid-template-columns: minmax(0,1fr); } }
.post-body > section + section { margin-top: var(--sp-7); }
.post-body h2 { margin-bottom: var(--sp-4); }
.post-body h3 { margin: var(--sp-6) 0 var(--sp-3); }
.post-aside { border-top: 3px solid var(--c-ignite); background: var(--bg-alt); padding: var(--sp-5); position: sticky; top: calc(var(--nav-h) + 1rem); }
.post-aside h2 { font-size: 1.0625rem; }
.blog-card { display: grid; grid-template-columns: 9rem minmax(0,1fr); gap: var(--sp-5); align-items: start; padding: var(--sp-5) 0; border-bottom: 1px solid var(--line); }
.blog-card__media { aspect-ratio: 3 / 2; overflow: hidden; background: var(--c-graphite-700); }
.blog-card__media img { width: 100%; height: 100%; object-fit: cover; }
.blog-card h3 { font-size: 1.15rem; }
.blog-card p { font-size: var(--fs-sm); color: var(--fg-muted); margin-top: var(--sp-2); }
@media (max-width: 640px) { .blog-card { grid-template-columns: minmax(0,1fr); } }

/* ==========================================================================
   16 · Legal / long-form document
   ========================================================================== */
.legal { max-width: 52rem; }
.legal section + section { margin-top: var(--sp-7); }
.legal h2 { font-size: 1.35rem; margin-bottom: var(--sp-3); }
.legal h3 { font-size: 1.0625rem; margin: var(--sp-5) 0 var(--sp-2); }
.legal p, .legal li { color: var(--fg-muted); font-size: var(--fs-sm); }
.legal .legal__meta { border: 1px solid var(--line); padding: var(--sp-4); font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--fg-muted); margin-bottom: var(--sp-6); }

/* ==========================================================================
   17 · Utility
   ========================================================================== */
.mt-0 { margin-top: 0; } .mt-3 { margin-top: var(--sp-3); } .mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); } .mt-6 { margin-top: var(--sp-6); } .mt-7 { margin-top: var(--sp-7); }
.mb-0 { margin-bottom: 0; } .mb-4 { margin-bottom: var(--sp-4); } .mb-5 { margin-bottom: var(--sp-5); } .mb-6 { margin-bottom: var(--sp-6); }
.center { text-align: center; }
.center .sec-head, .center .lead { margin-inline: auto; }
.hide-sm { display: initial; }
@media (max-width: 700px) { .hide-sm { display: none; } }
.bg-alt { background: var(--bg-alt); }

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