/* ==========================================================================
   seatbeltimporter.com — Core stylesheet
   Design language: "Technical Dossier" — editorial industrial, hairline
   drawing-sheet grids, restrained safety-orange accenting.
   --------------------------------------------------------------------------
   1.  Design tokens
   2.  Reset & base
   3.  Layout primitives
   4.  Typography utilities
   5.  Components (buttons, eyebrows, panels, media, forms, accordion)
   6.  Header / navigation
   7.  Footer
   8.  Motion & reveal
   9.  Page-specific compositions
   10. Responsive
   ========================================================================== */

/* ==========================================================================
   1. DESIGN TOKENS
   ========================================================================== */
:root {
  /* --- Colour: graphite / charcoal / metallic / ivory --- */
  --ink-900:  #0B0C0E;
  --ink-850:  #101317;
  --ink-800:  #14171B;
  --ink-700:  #1C1F24;
  --ink-600:  #262A31;
  --ink-500:  #363B44;

  --steel-500:#565D68;
  /* Muted grey for DARK surfaces — steel-500 only reaches 2.95:1 there. */
  --steel-dim:#8A929C;
  --steel-400:#6B7280;
  --steel-300:#9BA3AE;
  --steel-200:#C7CDD4;
  --steel-100:#E4E7EB;

  --ivory-50: #FAF8F5;
  --ivory-100:#F3F0EB;
  --ivory-200:#E8E3DB;
  --paper:    #FFFFFF;

  /* Safety orange. --accent for fills / large type / dark backgrounds.
     --accent-ink is the darkened variant for small text on light surfaces
     (5.28:1 on ivory — WCAG AA). */
  --accent:      #EE5A0E;
  /* Filled buttons carry white text, which needs a deeper orange to reach
     4.5:1. --accent stays bright for markers, rules and text on dark. */
  --accent-btn:  #C74809;
  --accent-btn-hover: #AD3D08;
  --accent-ink:  #B8410A;
  --accent-soft: rgba(238, 90, 14, 0.10);

  /* --- Semantic --- */
  --bg:          var(--ivory-50);
  --bg-alt:      var(--ivory-100);
  --surface:     var(--paper);
  --text:        var(--ink-900);
  --text-muted:  var(--steel-500);
  --hairline:    rgba(11, 12, 14, 0.12);
  --hairline-strong: rgba(11, 12, 14, 0.24);
  --hairline-dark:   rgba(255, 255, 255, 0.14);

  /* --- Type --- */
  --font-display: "Space Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --fs-eyebrow: 0.6875rem;
  --fs-micro:   0.75rem;
  --fs-small:   0.875rem;
  --fs-body:    1rem;
  --fs-lead:    clamp(1.0625rem, 0.98rem + 0.42vw, 1.3125rem);
  --fs-h4:      clamp(1.0625rem, 1rem + 0.3vw, 1.25rem);
  --fs-h3:      clamp(1.375rem, 1.22rem + 0.7vw, 1.875rem);
  --fs-h2:      clamp(1.75rem, 1.4rem + 1.45vw, 2.75rem);
  --fs-h1:      clamp(2.125rem, 1.6rem + 2.2vw, 3.5rem);
  --fs-display: clamp(2.5rem, 1.65rem + 3vw, 4.5rem);

  --lh-tight: 1.02;
  --lh-snug:  1.14;
  --lh-head:  1.2;
  --lh-body:  1.72;

  --tr-tight: -0.03em;
  --tr-label: 0.16em;

  /* --- Space --- */
  --gutter:    clamp(20px, 5vw, 60px);
  --container: 1280px;
  --container-wide: 1500px;
  --container-text: 720px;
  --sec-y:     clamp(64px, 9vw, 148px);
  --sec-y-sm:  clamp(48px, 6vw, 96px);

  /* --- Radius / shadow / motion --- */
  --r-sm: 2px;
  --r-md: 3px;
  --r-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(11,12,14,.06), 0 4px 12px rgba(11,12,14,.05);
  --shadow-md: 0 12px 36px rgba(11,12,14,.10), 0 2px 8px rgba(11,12,14,.06);
  --shadow-lg: 0 28px 70px rgba(11,12,14,.20);

  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
  --t-fast: .18s;
  --t-med:  .34s;
  --t-slow: .62s;

  --header-h: 84px;
  --header-h-sm: 64px;
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* offset for sticky header when jumping to #anchors */
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;            /* guards against 1px sub-pixel overflow */
  font-variant-numeric: tabular-nums;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-head);
  letter-spacing: var(--tr-tight);
  text-wrap: balance;
}
p { text-wrap: pretty; }

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }

button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }

/* Visible, high-contrast focus for keyboard users only */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}
:focus:not(:focus-visible) { outline: none; }

::selection { background: var(--accent-btn); color: #fff; }

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

/* Skip link */
.skip-link {
  position: absolute; top: -100px; left: var(--gutter);
  z-index: 200;
  background: var(--ink-900); color: #fff;
  padding: 12px 20px;
  font-family: var(--font-display);
  font-size: var(--fs-micro);
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  transition: top var(--t-fast) var(--ease);
}
.skip-link:focus { top: 12px; }

/* ==========================================================================
   3. LAYOUT PRIMITIVES
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--wide { max-width: var(--container-wide); }
.container--text { max-width: var(--container-text); }

.section { padding-block: var(--sec-y); position: relative; }
.section--sm { padding-block: var(--sec-y-sm); }
.section--tight-top { padding-top: clamp(36px, 4vw, 64px); }

/* Surfaces */
.surface-dark  { background: var(--ink-900); color: var(--ivory-50); }
.surface-dark h1, .surface-dark h2, .surface-dark h3, .surface-dark h4 { color: var(--ivory-50); }
.surface-alt   { background: var(--bg-alt); }
.surface-paper { background: var(--surface); }

/* Hairline "drawing sheet" rules — the signature motif.
   Purely decorative, hidden from assistive tech. */
.sheet { position: relative; }
.sheet::before {
  content: "";
  position: absolute; inset-block: 0;
  left: 50%; transform: translateX(-50%);
  width: min(100% - (var(--gutter) * 2), var(--container));
  pointer-events: none;
  background:
    linear-gradient(to right, var(--hairline) 0 1px, transparent 1px 100%) 0 0 / 25% 100% repeat-x;
  opacity: .55;
  z-index: 0;
}
.sheet--dark::before { background-image: linear-gradient(to right, var(--hairline-dark) 0 1px, transparent 1px 100%); opacity: .5; }
.sheet > * { position: relative; z-index: 1; }
@media (max-width: 860px) { .sheet::before { display: none; } }

/* Asymmetric grid */
.grid { display: grid; gap: clamp(28px, 4vw, 72px); }
.grid-12 { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(20px, 3vw, 40px); }

.hr-rule { height: 1px; background: var(--hairline); border: 0; }
.hr-rule--dark { background: var(--hairline-dark); }

/* ==========================================================================
   4. TYPOGRAPHY UTILITIES
   ========================================================================== */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--accent-ink);
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  background: var(--accent);
  flex: none;
}
.surface-dark .eyebrow { color: var(--accent); }

.eyebrow--muted { color: var(--steel-500); }
.eyebrow--muted::before { background: var(--steel-400); }

/* Technical metadata strip — letterspaced, tabular */
.meta {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--steel-500);
}
.surface-dark .meta { color: var(--steel-300); }

.h-display { font-size: var(--fs-display); line-height: var(--lh-tight); font-weight: 600; }
.h1 { font-size: var(--fs-h1); line-height: var(--lh-snug); }
.h2 { font-size: var(--fs-h2); line-height: var(--lh-snug); }
.h3 { font-size: var(--fs-h3); }
.h4 { font-size: var(--fs-h4); }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.6;
  color: var(--ink-700);
}
.surface-dark .lead { color: var(--steel-200); }

.prose p { color: var(--ink-700); }
.prose p + p { margin-top: 1.15em; }
.surface-dark .prose p { color: var(--steel-200); }

.muted { color: var(--text-muted); }
.accent-text { color: var(--accent-ink); }
.surface-dark .accent-text { color: var(--accent); }

/* Big outlined section numeral */
.sec-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 1.6rem + 3.6vw, 5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--hairline-strong);
  user-select: none;
}
.surface-dark .sec-num { -webkit-text-stroke-color: rgba(255,255,255,.26); }

/* Section header block */
.sec-head { display: grid; gap: 18px; max-width: 62ch; }
.sec-head .h2 + .lead { margin-top: 4px; }

/* Webbing texture — references seatbelt weave. Used sparingly. */
.webbing {
  background-image: repeating-linear-gradient(
    -45deg,
    var(--accent) 0 2px,
    transparent 2px 9px
  );
  opacity: .9;
}
.webbing-rule { height: 10px; }

/* ==========================================================================
   5. COMPONENTS
   ========================================================================== */

/* --- Buttons ------------------------------------------------------------ */
.btn {
  --btn-bg: var(--ink-900);
  --btn-fg: #fff;
  --btn-bd: var(--ink-900);
  position: relative;
  display: inline-flex; align-items: center; gap: 12px;
  min-height: 52px;
  padding: 14px 26px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  font-family: var(--font-display);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-radius: var(--r-sm);
  overflow: hidden;
  transition: background var(--t-med) var(--ease), color var(--t-med) var(--ease),
              border-color var(--t-med) var(--ease), transform var(--t-fast) var(--ease);
  isolation: isolate;
}
.btn .btn__arrow {
  flex: none;
  transition: transform var(--t-med) var(--ease-out);
}
.btn:hover .btn__arrow { transform: translateX(5px); }
.btn:active { transform: translateY(1px); }

.btn--accent { --btn-bg: var(--accent-btn); --btn-bd: var(--accent-btn); --btn-fg: #fff; }
.btn--accent:hover { --btn-bg: var(--accent-btn-hover); --btn-bd: var(--accent-btn-hover); }

.btn--solid:hover { --btn-bg: var(--accent-btn); --btn-bd: var(--accent-btn); }

.btn--ghost { --btn-bg: transparent; --btn-fg: var(--ink-900); --btn-bd: var(--hairline-strong); }
.btn--ghost:hover { --btn-bg: var(--ink-900); --btn-fg: #fff; --btn-bd: var(--ink-900); }

.surface-dark .btn--ghost { --btn-fg: var(--ivory-50); --btn-bd: rgba(255,255,255,.32); }
.surface-dark .btn--ghost:hover { --btn-bg: var(--ivory-50); --btn-fg: var(--ink-900); --btn-bd: var(--ivory-50); }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* Text link with animated underline */
.link-u {
  position: relative;
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-display);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent-ink);
  padding-bottom: 4px;
}
.surface-dark .link-u { color: var(--accent); }
.link-u::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(1); transform-origin: right;
  transition: transform var(--t-med) var(--ease);
}
.link-u:hover::after { transform: scaleX(0); }
.link-u svg { transition: transform var(--t-med) var(--ease-out); }
.link-u:hover svg { transform: translateX(4px); }

/* --- Panels: hairline boxes with corner ticks --------------------------- */
.panel {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--hairline);
  padding: clamp(24px, 3vw, 40px);
}
.panel--flat { background: transparent; }
.surface-dark .panel { background: var(--ink-850); border-color: var(--hairline-dark); }

/* Corner ticks — engineering drawing detail */
.ticked { position: relative; }
.ticked::before, .ticked::after {
  content: "";
  position: absolute;
  width: 12px; height: 12px;
  border: 1px solid var(--accent);
  pointer-events: none;
}
.ticked::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.ticked::after  { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

/* --- Media ---------------------------------------------------------------
   Aspect containers are matched to each photo's NATIVE ratio so that
   object-fit:cover crops nothing. Product shots use .media--contain.        */
.media {
  position: relative;
  overflow: hidden;
  background: var(--ink-800);
  border-radius: var(--r-sm);
  /* --ar is set per image to its NATIVE ratio, so object-fit:cover
     never has anything to crop. See each <img> in the page markup. */
  aspect-ratio: var(--ar, 3 / 2);
}
.media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--t-slow) var(--ease-out);
}
.media--portrait  { --ar: 2 / 3; }
.media--portrait-tall { --ar: 365 / 547; }
.media--square    { --ar: 1 / 1; }
.media--landscape { --ar: 3 / 2; }
.media--wide      { --ar: 2 / 1; }
.media--cinema    { --ar: 16 / 9; }

/* Product imagery: the whole component must stay visible. */
.media--contain { background: var(--ivory-100); }
.media--contain img { object-fit: contain; padding: clamp(16px, 3vw, 38px); }

.media-zoom:hover img { transform: scale(1.035); }

/* Reveal mask for images */
.media-reveal { clip-path: inset(0 0 0 0); }

/* Caption under an image */
.media-cap {
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--steel-500);
  display: flex; align-items: center; gap: 9px;
}
.media-cap::before { content: ""; width: 18px; height: 1px; background: var(--accent); flex: none; }
.surface-dark .media-cap { color: var(--steel-300); }

/* --- Spec list: label / value rows -------------------------------------- */
.speclist { border-top: 1px solid var(--hairline); }
.surface-dark .speclist { border-color: var(--hairline-dark); }
.speclist li {
  display: grid;
  grid-template-columns: minmax(120px, 0.42fr) 1fr;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--hairline);
  align-items: baseline;
}
.surface-dark .speclist li { border-color: var(--hairline-dark); }
.speclist dt, .speclist .spec-k {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--steel-500);
}
.speclist dd, .speclist .spec-v { font-size: var(--fs-small); color: var(--ink-700); margin: 0; }
.surface-dark .speclist .spec-v, .surface-dark .speclist dd { color: var(--steel-200); }
@media (max-width: 520px) {
  .speclist li { grid-template-columns: 1fr; gap: 5px; }
}

/* --- Numbered editorial list -------------------------------------------- */
.numlist { display: grid; }
.numlist > li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(20px, 3vw, 48px);
  padding-block: clamp(26px, 3vw, 40px);
  border-top: 1px solid var(--hairline);
}
.surface-dark .numlist > li { border-color: var(--hairline-dark); }
.numlist > li:last-child { border-bottom: 1px solid var(--hairline); }
.surface-dark .numlist > li:last-child { border-color: var(--hairline-dark); }
.numlist .n {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--tr-label);
  color: var(--accent-ink);
  padding-top: .45em;
  min-width: 3ch;
}
.surface-dark .numlist .n { color: var(--accent); }
.numlist h3 { margin-bottom: 10px; }

/* --- Accordion ----------------------------------------------------------- */
.acc { border-top: 1px solid var(--hairline); }
.acc__item { border-bottom: 1px solid var(--hairline); }
.acc__btn {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: clamp(14px, 2vw, 28px);
  align-items: start;
  text-align: left;
  padding: clamp(20px, 2.4vw, 30px) 0;
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.35;
  color: var(--ink-900);
  transition: color var(--t-fast) var(--ease);
}
.acc__btn:hover { color: var(--accent-ink); }
.acc__q {
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--tr-label);
  color: var(--steel-400);
  padding-top: .5em;
}
.acc__btn[aria-expanded="true"] .acc__q { color: var(--accent-ink); }
.acc__icon {
  position: relative;
  width: 20px; height: 20px;
  margin-top: .35em;
  flex: none;
}
.acc__icon::before, .acc__icon::after {
  content: ""; position: absolute; background: var(--ink-900);
  transition: transform var(--t-med) var(--ease), background var(--t-fast) var(--ease);
}
.acc__icon::before { top: 9px; left: 0; width: 20px; height: 1.5px; }
.acc__icon::after  { left: 9px; top: 0; width: 1.5px; height: 20px; }
.acc__btn[aria-expanded="true"] .acc__icon::after { transform: scaleY(0); }
.acc__btn[aria-expanded="true"] .acc__icon::before { background: var(--accent); }

.js .acc__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--t-med) var(--ease);
}
.acc__panel[data-open="true"] { grid-template-rows: 1fr; }
.acc__panel > div { overflow: hidden; }
.acc__body {
  padding: 0 0 clamp(22px, 2.4vw, 30px);
  max-width: 68ch;
  /* align body copy with the question text, past the number column */
  margin-left: 0;
}
.acc__body p + p { margin-top: 1em; }
.acc__body p { color: var(--ink-700); }
.acc__body ul { display: grid; gap: 8px; margin-top: 12px; }
.acc__body ul li {
  position: relative; padding-left: 20px; color: var(--ink-700); font-size: var(--fs-small);
}
.acc__body ul li::before {
  content: ""; position: absolute; left: 2px; top: .68em;
  width: 6px; height: 1px; background: var(--accent);
}
@media (min-width: 700px) { .acc__body { margin-left: calc(3ch + clamp(14px, 2vw, 28px)); } }

/* --- Forms --------------------------------------------------------------- */
.field { display: grid; gap: 8px; }
.field label {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--steel-500);
}
.field .req { color: var(--accent-ink); }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 14px 16px;
  min-height: 52px;
  background: var(--surface);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-sm);
  font-size: var(--fs-body);
  color: var(--ink-900);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.field textarea { min-height: 150px; resize: vertical; line-height: 1.6; }
.field input::placeholder, .field textarea::placeholder { color: var(--steel-300); }
.field input:hover, .field textarea:hover, .field select:hover { border-color: var(--steel-400); }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field .err {
  font-size: var(--fs-micro);
  color: #B3261E;
  display: none;
  align-items: center; gap: 6px;
}
.field[data-invalid="true"] input,
.field[data-invalid="true"] textarea { border-color: #B3261E; }
.field[data-invalid="true"] input:focus,
.field[data-invalid="true"] textarea:focus { box-shadow: 0 0 0 3px rgba(179,38,30,.12); }
.field[data-invalid="true"] .err { display: flex; }

.form-grid { display: grid; gap: 20px; grid-template-columns: repeat(2, 1fr); }
.form-grid .span-2 { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } .form-grid .span-2 { grid-column: auto; } }

.form-note {
  font-size: var(--fs-micro);
  color: var(--text-muted);
  line-height: 1.6;
}
.form-status {
  display: none;
  padding: 16px 18px;
  border: 1px solid var(--hairline-strong);
  border-left: 3px solid var(--accent);
  background: var(--bg-alt);
  font-size: var(--fs-small);
  line-height: 1.6;
}
.form-status[data-show="true"] { display: block; }

/* --- Contact tiles ------------------------------------------------------- */
.ctile {
  display: flex; align-items: flex-start; gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--hairline-dark);
  transition: padding-left var(--t-med) var(--ease);
}
.ctile:hover { padding-left: 8px; }
.ctile__ico {
  flex: none; width: 40px; height: 40px;
  display: grid; place-items: center;
  border: 1px solid var(--hairline-dark);
  color: var(--accent);
}
.ctile__k {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--steel-300);
  display: block; margin-bottom: 4px;
}
.ctile__v {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1rem + 0.7vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ivory-50);
  word-break: break-word;
}
a.ctile:hover .ctile__v { color: var(--accent); }

/* ==========================================================================
   6. HEADER / NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 248, 245, 0.86);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background var(--t-med) var(--ease), border-color var(--t-med) var(--ease),
              box-shadow var(--t-med) var(--ease);
}
.site-header[data-scrolled="true"] {
  background: rgba(250, 248, 245, 0.95);
  border-bottom-color: var(--hairline);
  box-shadow: 0 1px 20px rgba(11,12,14,.05);
}
@supports not (backdrop-filter: blur(4px)) { .site-header { background: var(--ivory-50); } }

.header-inner {
  height: var(--header-h);
  display: flex; align-items: center; gap: 28px;
  transition: height var(--t-med) var(--ease);
}
.site-header[data-scrolled="true"] .header-inner { height: 68px; }

/* Wordmark */
.brand { display: inline-flex; align-items: center; gap: 11px; flex: none; }
.brand__mark { flex: none; }
.brand__text { display: grid; line-height: 1; }
.brand__name {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink-900);
  white-space: nowrap;
}
.brand__name em { font-style: normal; color: var(--accent); }
.brand__sub {
  font-family: var(--font-display);
  font-size: 0.5625rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--steel-400);
  margin-top: 4px;
  white-space: nowrap;
}

.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: clamp(4px, 1.4vw, 20px); }
.nav__link {
  position: relative;
  display: block;
  padding: 10px 4px;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--ink-700);
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute; left: 4px; right: 4px; bottom: 4px;
  height: 1.5px; background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-med) var(--ease);
}
.nav__link:hover { color: var(--ink-900); }
.nav__link:hover::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--ink-900); font-weight: 600; }
.nav__link[aria-current="page"]::after { transform: scaleX(1); }

.header-cta { flex: none; min-height: 44px; padding: 11px 20px; font-size: 0.75rem; }

/* Burger */
.burger {
  display: none;
  flex: none;
  width: 46px; height: 46px;
  margin-left: auto;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-sm);
  position: relative;
}
.burger span {
  position: absolute; left: 13px; width: 20px; height: 1.5px;
  background: var(--ink-900);
  transition: transform var(--t-med) var(--ease), opacity var(--t-fast) var(--ease);
}
.burger span:nth-child(1) { top: 17px; }
.burger span:nth-child(2) { top: 22.5px; }
.burger span:nth-child(3) { top: 28px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* Mobile drawer */
.mobile-nav {
  position: fixed; inset: 0;
  z-index: 99;
  background: var(--ink-900);
  color: var(--ivory-50);
  padding: calc(var(--header-h-sm) + 34px) var(--gutter) 40px;
  display: flex; flex-direction: column;
  overflow-y: auto;
  opacity: 0; visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--t-med) var(--ease), transform var(--t-med) var(--ease), visibility var(--t-med);
}
.mobile-nav[data-open="true"] { opacity: 1; visibility: visible; transform: none; }
.mobile-nav__list { display: grid; }
.mobile-nav__list a {
  display: flex; align-items: baseline; gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--hairline-dark);
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 1.1rem + 1.6vw, 1.875rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ivory-50);
}
.mobile-nav__list a[aria-current="page"] { color: var(--accent); }
.mobile-nav__list .n {
  font-size: 0.6875rem; font-weight: 600; letter-spacing: var(--tr-label);
  color: var(--steel-dim); flex: none;
}
.mobile-nav__foot { margin-top: auto; padding-top: 34px; display: grid; gap: 14px; }
.mobile-nav__foot .btn { width: 100%; justify-content: center; }
.mobile-nav__contact { display: grid; gap: 6px; }
.mobile-nav__contact a {
  font-family: var(--font-display); font-weight: 600;
  font-size: 1rem; color: var(--ivory-50);
}
.mobile-nav__contact a:hover { color: var(--accent); }

body[data-nav-open="true"] { overflow: hidden; }

@media (max-width: 1080px) {
  .nav, .header-cta { display: none; }
  .burger { display: block; }
  :root { --header-h: 68px; }
  .site-header[data-scrolled="true"] .header-inner { height: 60px; }
}

/* ==========================================================================
   7. FOOTER
   ========================================================================== */
.site-footer { background: var(--ink-900); color: var(--steel-200); }
.footer-top {
  display: grid;
  grid-template-columns: 1.45fr 1fr 1fr;
  gap: clamp(36px, 5vw, 80px);
  padding-block: clamp(52px, 6vw, 88px);
}
.footer-brand .brand__name { color: var(--ivory-50); }
.footer-brand .brand__sub { color: var(--steel-dim); }
.footer-blurb { margin-top: 22px; max-width: 42ch; color: var(--steel-dim); font-size: var(--fs-small); line-height: 1.7; }

.footer-h {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--ivory-50);
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 9px;
}
.footer-h::before { content: ""; width: 14px; height: 1px; background: var(--accent); flex: none; }

.footer-list { display: grid; gap: 11px; }
.footer-list a {
  font-size: var(--fs-small);
  color: var(--steel-300);
  transition: color var(--t-fast) var(--ease), padding-left var(--t-fast) var(--ease);
  display: inline-block;
}
.footer-list a:hover { color: var(--accent); padding-left: 5px; }

.footer-contact { display: grid; gap: 16px; }
.footer-contact a {
  font-family: var(--font-display);
  font-size: 1rem; font-weight: 600; letter-spacing: -0.01em;
  color: var(--ivory-50);
  word-break: break-word;
  transition: color var(--t-fast) var(--ease);
}
.footer-contact a:hover { color: var(--accent); }
.footer-contact .k {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow); letter-spacing: var(--tr-label);
  text-transform: uppercase; color: var(--steel-dim); margin-bottom: 4px;
}

.socials { display: flex; gap: 10px; margin-top: 26px; flex-wrap: wrap; }
.socials a, .socials span {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border: 1px solid var(--hairline-dark);
  color: var(--steel-dim);
  border-radius: var(--r-sm);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.socials a:hover { color: #fff; background: var(--accent-btn); border-color: var(--accent-btn); }
/* No profile URLs supplied — icons render as non-interactive placeholders. */
.socials span { cursor: default; }

.footer-bottom {
  border-top: 1px solid var(--hairline-dark);
  padding-block: 26px;
  display: flex; flex-wrap: wrap; gap: 14px 28px;
  align-items: center; justify-content: space-between;
  font-size: var(--fs-micro);
  color: var(--steel-dim);
}
.footer-bottom a { color: var(--steel-300); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--steel-dim); }
.footer-bottom a:hover { color: var(--accent); text-decoration-color: var(--accent); }

@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================================
   8. MOTION & REVEAL
   ========================================================================== */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

.js [data-reveal="mask"] { opacity: 1; transform: none; clip-path: inset(0 0 100% 0); transition: clip-path .95s var(--ease-out); }
.js [data-reveal="mask"].is-in { clip-path: inset(0 0 0 0); }

.js [data-reveal="fade"] { transform: none; }

/* Users who ask for less motion get a calm, static experience. */
@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;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; clip-path: none !important; }
  .media-zoom:hover img { transform: none; }
  .acc__panel { transition: none; }
}

/* ==========================================================================
   9. PAGE COMPOSITIONS
   Each page carries a deliberately different structural signature.
   ========================================================================== */

/* --------------------------------------------------------------------------
   9.1 HOME — asymmetric editorial hero + layered inset
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding-top: clamp(40px, 5vw, 76px);
  padding-bottom: clamp(56px, 7vw, 110px);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(36px, 5vw, 76px);
  align-items: center;
}
.hero__meta {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 10px 16px;
  margin-bottom: clamp(22px, 3vw, 34px);
}
.hero__meta .dot { width: 3px; height: 3px; background: var(--steel-300); flex: none; }
.hero h1 { margin-bottom: 26px; }
.hero h1 .accent-underline {
  position: relative;
  display: inline-block;
  color: var(--ink-900);
}
.hero h1 .accent-underline::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: .06em;
  height: .085em;
  background: var(--accent);
  z-index: -1;
  opacity: .28;
}
.hero__lead { max-width: 50ch; margin-bottom: 34px; }
.hero__cta { margin-bottom: clamp(30px, 4vw, 44px); }

/* Small technical fact strip under the CTAs — descriptive, not statistical */
.hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}
.hero__facts > div { background: var(--bg); padding: 18px 16px; }
.hero__facts .k {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); text-transform: uppercase;
  color: var(--accent-ink); margin-bottom: 7px;
}
.hero__facts .v { font-size: 0.8125rem; line-height: 1.55; color: var(--ink-700); }

/* Image stack: large master photo + smaller overlapping orange inset.
   The inset is capped near its native 365px width so it never softens. */
.hero__media { position: relative; }
.hero__media .master { position: relative; }
.hero__media .master .media { --ar: 3 / 4; }
.hero__inset {
  position: absolute;
  left: clamp(-48px, -3vw, -20px);
  bottom: clamp(-34px, -3vw, -18px);
  width: clamp(150px, 21vw, 268px);
  border: 6px solid var(--bg);
  box-shadow: var(--shadow-md);
  z-index: 2;
}
.hero__inset .media { --ar: 365 / 547; }
.hero__stamp {
  position: absolute;
  top: clamp(-14px, -1vw, -8px); right: clamp(-14px, -1vw, -8px);
  background: var(--accent-btn);
  color: #fff;
  padding: 11px 15px;
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  z-index: 3;
  box-shadow: var(--shadow-sm);
}
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; gap: clamp(48px, 8vw, 64px); }
  .hero__media { max-width: 560px; }
  .hero__inset { left: auto; right: clamp(-16px, -2vw, -10px); bottom: clamp(-26px, -3vw, -18px); }
}
@media (max-width: 560px) {
  .hero__facts { grid-template-columns: 1fr; }
  .hero__inset { width: 128px; border-width: 4px; }
  .hero__media { margin-bottom: 30px; }
}

/* Home — trust: oversized statement vs narrative column */
.trust-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(32px, 5vw, 88px);
  align-items: start;
}
.trust-statement .h2 { margin-top: 20px; }
.trust-narrative { display: grid; gap: 26px; }
@media (max-width: 900px) { .trust-grid { grid-template-columns: 1fr; } }

/* Home — product strip: one dominant image beside a category index */
.pstrip {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(32px, 4.5vw, 72px);
  align-items: center;
}
.pstrip__media .media { --ar: 4 / 3; }
.pcat { border-top: 1px solid var(--hairline-dark); }
.pcat li { border-bottom: 1px solid var(--hairline-dark); }
.pcat a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px; align-items: center;
  padding: 20px 0;
  transition: padding-left var(--t-med) var(--ease);
}
.pcat a:hover { padding-left: 10px; }
.pcat .n {
  font-family: var(--font-display); font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); color: var(--steel-dim);
}
.pcat .t {
  font-family: var(--font-display); font-size: var(--fs-h4); font-weight: 600;
  letter-spacing: -0.02em; color: var(--ivory-50);
}
.pcat a:hover .t { color: var(--accent); }
.pcat .arw { color: var(--steel-dim); transition: transform var(--t-med) var(--ease-out), color var(--t-fast); }
.pcat a:hover .arw { color: var(--accent); transform: translateX(5px); }
@media (max-width: 900px) { .pstrip { grid-template-columns: 1fr; } }

/* Home — applications offset pair */
.appsplit {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(30px, 4vw, 68px);
  align-items: center;
}
.appsplit__media .media { --ar: 3 / 4; }
.applist { display: grid; gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); margin-top: 30px; }
.applist li { background: var(--bg); padding: 20px 22px; display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: start; }
.applist .n { font-family: var(--font-display); font-size: var(--fs-eyebrow); font-weight: 600; letter-spacing: var(--tr-label); color: var(--accent-ink); padding-top: .25em; }
.applist h3 { font-size: 1rem; margin-bottom: 5px; }
.applist p { font-size: var(--fs-micro); color: var(--ink-700); line-height: 1.6; }
@media (max-width: 880px) { .appsplit { grid-template-columns: 1fr; } .appsplit__media { max-width: 460px; } }

/* Home — process: sticky heading beside a scrolling numbered sequence */
.process {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}
.process__sticky { position: sticky; top: calc(var(--header-h) + 40px); }
.process__steps { display: grid; }
.process__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(20px, 3vw, 44px);
  padding-block: clamp(28px, 3.4vw, 46px);
  border-top: 1px solid var(--hairline-dark);
}
.process__step:last-child { border-bottom: 1px solid var(--hairline-dark); }
.process__step .sec-num { font-size: clamp(1.75rem, 1.2rem + 2.2vw, 3rem); }
.process__step h3 { margin-bottom: 10px; }
.process__step p { color: var(--steel-300); font-size: var(--fs-small); max-width: 52ch; }
@media (max-width: 880px) {
  .process { grid-template-columns: 1fr; }
  .process__sticky { position: static; }
}

/* Shared: dark closing CTA band */
.cta-band { position: relative; overflow: hidden; }
.cta-band__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(34px, 5vw, 80px);
  align-items: center;
}
.cta-band .h2 { margin-bottom: 20px; }
.cta-contacts { display: grid; gap: 0; }
@media (max-width: 860px) { .cta-band__inner { grid-template-columns: 1fr; } }

/* --------------------------------------------------------------------------
   9.2 ABOUT — vertical narrative spine
   -------------------------------------------------------------------------- */
.page-head {
  padding-top: clamp(40px, 5vw, 78px);
  padding-bottom: clamp(36px, 4.5vw, 62px);
}
.page-head__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(26px, 4vw, 64px);
  align-items: end;
}
.page-head h1 { margin-top: 20px; }
.crumbs { display: flex; align-items: center; gap: 9px; font-size: var(--fs-micro); color: var(--steel-500); margin-bottom: 22px; }
.crumbs a { color: var(--steel-500); }
.crumbs a:hover { color: var(--accent-ink); }
.crumbs [aria-current] { color: var(--ink-900); }
@media (max-width: 800px) { .page-head__grid { grid-template-columns: 1fr; align-items: start; } }

/* The spine: a hairline running down the page with alternating content */
.spine { position: relative; max-width: 880px; margin-inline: auto; }
.spine::before {
  content: "";
  position: absolute; top: 0; bottom: 0;
  left: 88px; width: 1px;
  background: var(--hairline);
}
.spine__node { position: relative; padding-left: 152px; padding-block: clamp(34px, 4.4vw, 66px); }
.spine__node::before {
  content: "";
  position: absolute; left: 83px; top: calc(clamp(34px, 4.4vw, 66px) + .5em);
  width: 11px; height: 11px;
  background: var(--bg);
  border: 1.5px solid var(--accent);
  border-radius: 50%;
}
.spine__tag {
  position: absolute; left: 0; top: calc(clamp(34px, 4.4vw, 66px) + .35em);
  width: 68px;
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); text-transform: uppercase;
  color: var(--steel-500);
  text-align: right;
}
.spine__node h2 { margin-bottom: 16px; }
.spine__node .prose { max-width: 64ch; }
.spine__media { margin-top: 30px; max-width: 620px; }
@media (max-width: 780px) {
  .spine::before { left: 5px; }
  .spine__node { padding-left: 30px; }
  .spine__node::before { left: 0; }
  .spine__tag { position: static; width: auto; text-align: left; display: block; margin-bottom: 12px; }
}

/* About — values as a large stacked vertical list */
.values { border-top: 1px solid var(--hairline-dark); }
.values__row {
  display: grid;
  grid-template-columns: auto minmax(0, 0.9fr) minmax(0, 1.4fr);
  gap: clamp(18px, 3vw, 48px);
  align-items: baseline;
  padding-block: clamp(26px, 3vw, 40px);
  border-bottom: 1px solid var(--hairline-dark);
  transition: padding-left var(--t-med) var(--ease);
}
.values__row:hover { padding-left: 10px; }
.values__row .n {
  font-family: var(--font-display); font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); color: var(--accent);
  min-width: 3ch;
}
.values__row h3 { font-size: clamp(1.375rem, 1.1rem + 1.2vw, 2.125rem); color: var(--ivory-50); }
.values__row p { color: var(--steel-300); font-size: var(--fs-small); }
@media (max-width: 820px) {
  .values__row { grid-template-columns: auto 1fr; }
  .values__row p { grid-column: 2; }
}

/* --------------------------------------------------------------------------
   9.3 PRODUCTS — large catalog rows
   -------------------------------------------------------------------------- */
.subnav {
  position: sticky; top: var(--header-h);
  z-index: 50;
  background: var(--bg);
  border-block: 1px solid var(--hairline);
  transition: top var(--t-med) var(--ease);
}
.subnav__list {
  display: flex; gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.subnav__list::-webkit-scrollbar { display: none; }
.subnav__list a {
  display: block;
  padding: 16px 16px;
  font-family: var(--font-display);
  font-size: var(--fs-micro);
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--steel-500);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.subnav__list a:hover { color: var(--ink-900); }
.subnav__list a.is-active { color: var(--ink-900); border-bottom-color: var(--accent); }

.catrow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(30px, 4.5vw, 76px);
  align-items: center;
  padding-block: clamp(46px, 6vw, 96px);
  border-bottom: 1px solid var(--hairline);
}
.catrow:last-of-type { border-bottom: 0; }
.catrow--flip .catrow__media { order: 2; }
.catrow__head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 18px; }
.catrow__head .n {
  font-family: var(--font-display); font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); color: var(--accent-ink); flex: none;
}
.catrow h2 { font-size: var(--fs-h3); }
.catrow .prose { margin-bottom: 24px; max-width: 56ch; }
.catrow .speclist { margin-bottom: 28px; }
@media (max-width: 880px) {
  .catrow { grid-template-columns: 1fr; }
  .catrow--flip .catrow__media { order: 0; }
}

/* Guidance callout */
.callout {
  border: 1px solid var(--hairline-strong);
  border-left: 3px solid var(--accent);
  background: var(--surface);
  padding: clamp(22px, 3vw, 34px);
}
.callout h3 { font-size: var(--fs-h4); margin-bottom: 10px; }
.callout p { font-size: var(--fs-small); color: var(--ink-700); }
.surface-dark .callout { background: var(--ink-850); border-color: var(--hairline-dark); border-left-color: var(--accent); }

/* --------------------------------------------------------------------------
   9.4 APPLICATIONS — editorial mosaic
   -------------------------------------------------------------------------- */
.mosaic {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(20px, 3vw, 44px);
  align-items: start;
}
.mos-txt { display: grid; gap: 16px; align-content: start; }
.mos-txt h2 { font-size: var(--fs-h3); }
.mos-a { grid-column: span 7; }
.mos-b { grid-column: span 5; align-self: center; }
.mos-c { grid-column: span 5; }
.mos-d { grid-column: span 7; align-self: center; }
.mos-full { grid-column: span 12; }
.mos-half { grid-column: span 6; }
.mos-offset { margin-top: clamp(0px, 5vw, 76px); }
@media (max-width: 880px) {
  .mos-a, .mos-b, .mos-c, .mos-d, .mos-half { grid-column: span 12; }
  .mos-offset { margin-top: 0; }
}

/* Application feature block */
.appblock { padding-block: clamp(40px, 5vw, 82px); border-top: 1px solid var(--hairline); }
.appblock:first-of-type { border-top: 0; }
.appblock__index {
  display: flex; align-items: baseline; gap: 16px; margin-bottom: 24px;
}
.appblock__index .n {
  font-family: var(--font-display); font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); color: var(--accent-ink);
}
.appblock__index .rule { flex: 1; height: 1px; background: var(--hairline); }

.checks { display: grid; gap: 11px; margin-top: 20px; }
.checks li { position: relative; padding-left: 26px; font-size: var(--fs-small); color: var(--ink-700); line-height: 1.62; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: .55em;
  width: 12px; height: 1px; background: var(--accent);
}
.surface-dark .checks li { color: var(--steel-300); }

/* --------------------------------------------------------------------------
   9.5 QUALITY & SAFETY — technical spec-sheet dashboard
   -------------------------------------------------------------------------- */
.dash {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}
.dash__cell {
  background: var(--bg);
  padding: clamp(24px, 3vw, 38px);
  display: grid; gap: 12px; align-content: start;
  position: relative;
}
.dash__cell .k {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); text-transform: uppercase;
  color: var(--accent-ink);
  display: flex; align-items: center; gap: 9px;
}
.dash__cell h3 { font-size: var(--fs-h4); }
.dash__cell p { font-size: var(--fs-small); color: var(--ink-700); }
.dash--4 > .dash__cell { grid-column: span 4; }
.dash--6 > .dash__cell { grid-column: span 6; }
.dash__cell.span-4 { grid-column: span 4; }
.dash__cell.span-6 { grid-column: span 6; }
.dash__cell.span-8 { grid-column: span 8; }
.dash__cell.span-12 { grid-column: span 12; }
@media (max-width: 900px) {
  .dash__cell, .dash--4 > .dash__cell, .dash--6 > .dash__cell,
  .dash__cell.span-4, .dash__cell.span-6, .dash__cell.span-8 { grid-column: span 12; }
}

/* Inspection checklist laid out as a drawing-sheet table */
.sheet-table { width: 100%; border-collapse: collapse; font-size: var(--fs-small); }
.sheet-table caption { text-align: left; margin-bottom: 18px; }
.sheet-table th, .sheet-table td {
  text-align: left;
  padding: 16px 18px;
  border: 1px solid var(--hairline);
  vertical-align: top;
}
.sheet-table thead th {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); text-transform: uppercase;
  color: var(--steel-500);
  background: var(--bg-alt);
  white-space: nowrap;
}
.sheet-table tbody th {
  font-family: var(--font-display); font-weight: 600; font-size: var(--fs-small);
  color: var(--ink-900); width: 32%;
}
.sheet-table td { color: var(--ink-700); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
@media (max-width: 620px) { .sheet-table { min-width: 540px; } }

/* Quality — split with technical linework diagram */
.qsplit {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(30px, 4.5vw, 74px);
  align-items: center;
}
@media (max-width: 880px) { .qsplit { grid-template-columns: 1fr; } }

.notice {
  border: 1px solid var(--hairline-dark);
  padding: clamp(24px, 3vw, 38px);
  display: grid; gap: 14px;
}
.notice__k {
  font-family: var(--font-display); font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); text-transform: uppercase; color: var(--accent);
  display: flex; align-items: center; gap: 9px;
}

/* --------------------------------------------------------------------------
   9.6 FAQ — minimal typographic architecture
   -------------------------------------------------------------------------- */
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.36fr) minmax(0, 1fr);
  gap: clamp(30px, 5vw, 84px);
  align-items: start;
}
.faq-index { position: sticky; top: calc(var(--header-h) + 36px); display: grid; gap: 26px; }
.faq-index__list { display: grid; gap: 3px; border-left: 1px solid var(--hairline); }
.faq-index__list a {
  display: block;
  padding: 9px 0 9px 18px;
  margin-left: -1px;
  border-left: 1px solid transparent;
  font-family: var(--font-display);
  font-size: var(--fs-small); font-weight: 500;
  color: var(--steel-500);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.faq-index__list a:hover { color: var(--ink-900); }
.faq-index__list a.is-active { color: var(--ink-900); font-weight: 600; border-left-color: var(--accent); }
.faq-group { padding-bottom: clamp(34px, 4vw, 58px); }
.faq-group__head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 6px; }
.faq-group__head .n {
  font-family: var(--font-display); font-size: var(--fs-eyebrow); font-weight: 600;
  letter-spacing: var(--tr-label); color: var(--accent-ink); flex: none;
}
.faq-group__head h2 { font-size: var(--fs-h3); }
@media (max-width: 900px) {
  .faq-layout { grid-template-columns: 1fr; }
  .faq-index { position: static; }
  .faq-index__list { display: flex; flex-wrap: wrap; gap: 8px; border-left: 0; }
  .faq-index__list a {
    padding: 9px 14px; border: 1px solid var(--hairline); border-radius: var(--r-pill); margin-left: 0;
    font-size: var(--fs-micro);
  }
  .faq-index__list a.is-active { border-color: var(--accent); }
}

/* --------------------------------------------------------------------------
   9.7 CONTACT — large split composition
   -------------------------------------------------------------------------- */
.contact-split {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  min-height: 100%;
}
.contact-panel {
  background: var(--ink-900);
  color: var(--ivory-50);
  padding: clamp(40px, 5vw, 78px) clamp(28px, 4vw, 62px);
  display: grid; align-content: start; gap: 30px;
}
.contact-form-wrap {
  background: var(--bg-alt);
  padding: clamp(40px, 5vw, 78px) clamp(28px, 4vw, 62px);
}
.contact-form-wrap .form-inner { max-width: 640px; }
@media (max-width: 940px) { .contact-split { grid-template-columns: 1fr; } }

.contact-media { margin-top: 12px; max-width: 330px; }
.contact-media .media { --ar: 493 / 740; }

.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); }
.info-grid > div { background: var(--bg); padding: clamp(20px, 2.6vw, 30px); }
.info-grid h3 { font-size: var(--fs-h4); margin-bottom: 9px; }
.info-grid p { font-size: var(--fs-small); color: var(--ink-700); }
@media (max-width: 700px) { .info-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   10. RESPONSIVE SAFETY NETS
   ========================================================================== */
@media (max-width: 1080px) {
  .subnav { top: var(--header-h); }
  .process__sticky, .faq-index { top: calc(var(--header-h) + 24px); }
}
@media (max-width: 480px) {
  .btn { width: 100%; justify-content: center; }
  .btn-row .btn { width: auto; flex: 1 1 auto; min-width: 0; }
  .hero__stamp { display: none; }
}
/* Long unbroken strings (emails, URLs) must never force a scrollbar */
.break-any { overflow-wrap: anywhere; word-break: break-word; }

/* --- Scrollable table: caption moves outside, edge fade signals swipe ------ */
.table-scroll { position: relative; }
/* The caption stays for assistive tech but is rendered above the scroller as
   .table-label, so it is never clipped by the horizontal overflow. */
.sheet-table caption {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.table-label {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 6px 16px; margin-bottom: 14px;
}
.table-hint { display: none; align-items: center; gap: 7px; color: var(--accent-ink); }
.table-hint::after { content: "\2192"; font-size: 1.05em; line-height: 1; }
@media (max-width: 700px) {
  .table-hint { display: inline-flex; }
  .table-scroll::after {
    content: ""; position: absolute; top: 0; right: 0; bottom: 0; width: 34px;
    background: linear-gradient(to right, rgba(250,248,245,0), var(--bg));
    pointer-events: none;
  }
}

/* --- Form field ordering: the error sits directly under its input, above
       any hint text, so the association is unambiguous. ------------------- */
.field .err { order: 3; }
.field .form-note { order: 4; }

/* Stacked contact layout: centre the form column rather than leaving a
   ragged empty gutter beside it. */
@media (max-width: 940px) {
  .contact-form-wrap .form-inner { margin-inline: auto; }
}

/* ==========================================================================
   NO-JAVASCRIPT FALLBACKS
   Without JS the accordion panels render open and the drawer cannot operate,
   so the controls that would be inert are hidden and the primary navigation
   falls back to a wrapping inline list.
   ========================================================================== */
.no-js .acc__icon { display: none; }
.no-js .acc__btn { grid-template-columns: auto 1fr; cursor: default; }
.no-js .burger { display: none; }
@media (max-width: 1080px) {
  .no-js .header-inner {
    height: auto; flex-wrap: wrap;
    padding-block: 12px; gap: 8px 20px;
  }
  .no-js .nav { display: block; width: 100%; margin-left: 0; }
  .no-js .nav__list { flex-wrap: wrap; gap: 2px 16px; }
  .no-js .header-cta { display: inline-flex; }
}

/* --- Dark-surface text overrides that would otherwise inherit light-surface
       colours and fail contrast. --------------------------------------------- */
.surface-dark .muted { color: var(--steel-300); }
.surface-dark .callout p { color: var(--steel-200); }
.surface-dark .callout h3 { color: var(--ivory-50); }
.surface-dark .form-note { color: var(--steel-dim); }
.surface-dark .dash__cell p { color: var(--steel-200); }
.surface-dark .info-grid > div { background: var(--ink-850); }
.surface-dark .info-grid { background: var(--hairline-dark); border-color: var(--hairline-dark); }
.surface-dark .info-grid p { color: var(--steel-300); }
.surface-dark .applist li { background: var(--ink-850); }
.surface-dark .applist { background: var(--hairline-dark); border-color: var(--hairline-dark); }
.surface-dark .applist p { color: var(--steel-300); }