/* IronBound Engineering — site styles
   Palette from the logo: charcoal #2C2E30 + molten orange #FE680B, on cool drawing-paper grey. */

@font-face {
  font-family: "Heros Cn IB";
  src: url("../fonts/heros-cn-ib-700.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  --graphite: #2C2E30;
  --graphite-deep: #232527;
  --iron: #63686D;
  --iron-fill: #CDD1D3;
  --rule: #C6CACC;
  --paper: #F1F2F0;
  --sheet: #FFFFFF;
  --molten: #FE680B;
  --molten-hover: #FF8A3D;
  --molten-ink: #B34706;
  --on-dark: #EDEEEC;
  --on-dark-muted: #AEB3B7;
  --rule-dark: rgba(237, 238, 236, 0.22);

  --font-head: "Heros Cn IB", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;

  --gutter: clamp(16px, 4vw, 40px);
  --section-y: clamp(4rem, 2.8rem + 5vw, 7.5rem);
  --header-h: 68px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--graphite);
  font: 400 1.0625rem/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

h1, h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.03;
  letter-spacing: -0.003em;
  text-wrap: balance;
  overflow-wrap: break-word;
}
h1 { font-size: clamp(2.4rem, 1.5rem + 3vw, 3.9rem); }
h2 { font-size: clamp(2rem, 1.45rem + 2vw, 3.05rem); }
h3 {
  margin: 0 0 0.4rem;
  font: 600 1.0625rem/1.35 var(--font-body);
  letter-spacing: -0.006em;
}
p { margin: 0 0 1rem; max-width: 66ch; }
p:last-child { margin-bottom: 0; }
:lang(de) p, :lang(de) li, :lang(de) dd, :lang(de) td { hyphens: auto; -webkit-hyphens: auto; }

a { color: var(--molten-ink); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--molten-ink); outline-offset: 3px; }

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

.wrap { width: min(100% - 2 * var(--gutter), 75rem); margin-inline: auto; }

.skip {
  position: absolute; left: var(--gutter); top: -100px; z-index: 100;
  padding: 0.6rem 1rem; background: var(--graphite); color: var(--on-dark);
  font-weight: 600; text-decoration: none;
}
.skip:focus { top: 10px; }

/* ------------------------------------------------------------------ buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0.7rem 1.3rem;
  border: 2px solid transparent; border-radius: 2px;
  font: 600 1rem/1.2 var(--font-body);
  text-align: center; text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--molten); color: var(--graphite); }
.btn-primary:hover { background: var(--molten-hover); }
.btn-ghost { border-color: var(--graphite); color: var(--graphite); background: transparent; }
.btn-ghost:hover { background: var(--graphite); color: var(--paper); }
.btn-light { border-color: rgba(237, 238, 236, 0.55); color: var(--on-dark); background: transparent; }
.btn-light:hover { background: var(--on-dark); color: var(--graphite); border-color: var(--on-dark); }
.btn-sm { min-height: 40px; padding: 0.45rem 0.95rem; font-size: 0.9375rem; }

/* ------------------------------------------------------------------ header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(241, 242, 240, 0.95);
  border-bottom: 1px solid var(--rule);
}
@supports (backdrop-filter: blur(4px)) {
  .site-header { background: rgba(241, 242, 240, 0.86); backdrop-filter: blur(8px); }
}
.header-inner {
  display: flex; align-items: center; gap: 1.5rem;
  min-height: var(--header-h);
}
.brand { display: inline-flex; align-items: center; color: var(--graphite); text-decoration: none; flex-shrink: 0; }
.brand img { height: 44px; width: auto; }
.wordmark {
  position: relative;
  font: 700 1.5rem/1 var(--font-head);
  letter-spacing: 0.005em;
  white-space: nowrap;
  padding-right: 0.15rem;
}
.wordmark::after {
  content: ""; position: absolute; right: -9px; bottom: -7px;
  width: 15px; height: 11px;
  border-right: 3px solid var(--molten); border-bottom: 3px solid var(--molten);
}
.main-nav { margin-left: auto; }
.main-nav ul { display: flex; gap: clamp(1rem, 1.6vw, 1.75rem); margin: 0; padding: 0; list-style: none; }
.main-nav a, .menu-panel a:not(.btn) {
  color: var(--graphite); text-decoration: none; font-weight: 500; font-size: 0.9375rem;
  padding-block: 0.4rem;
  background: linear-gradient(var(--molten), var(--molten)) left bottom / 0 2px no-repeat;
  transition: background-size 0.2s ease;
}
.main-nav a:hover { background-size: 100% 2px; }
.header-tools { display: flex; align-items: center; gap: 1rem; }

.lang { display: flex; align-items: center; font-size: 0.875rem; font-weight: 600; }
.lang > * { padding: 0.35rem 0.55rem; line-height: 1; }
.lang-current { color: var(--graphite); box-shadow: inset 0 -2px 0 var(--molten); }
.lang-link { color: var(--iron); text-decoration: none; border-left: 1px solid var(--rule); }
.lang-link:hover { color: var(--graphite); }

.menu { display: none; position: static; }
.menu > summary {
  list-style: none; cursor: pointer;
  display: inline-flex; align-items: center; gap: 0.55rem;
  min-height: 44px; padding: 0.4rem 0.7rem;
  border: 2px solid var(--graphite); border-radius: 2px;
  font-weight: 600; font-size: 0.9375rem;
}
.menu > summary::-webkit-details-marker { display: none; }
.menu-bars { position: relative; width: 16px; height: 2px; background: currentColor; }
.menu-bars::before, .menu-bars::after { content: ""; position: absolute; left: 0; width: 16px; height: 2px; background: currentColor; }
.menu-bars::before { top: -5px; }
.menu-bars::after { top: 5px; }
.menu[open] .menu-bars { background: transparent; }
.menu[open] .menu-bars::before { top: 0; transform: rotate(45deg); }
.menu[open] .menu-bars::after { top: 0; transform: rotate(-45deg); }
.menu-panel {
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--paper);
  border-bottom: 1px solid var(--graphite);
  padding: 0.5rem var(--gutter) 1.5rem;
}
.menu-panel ul { list-style: none; margin: 0 0 1.25rem; padding: 0; }
.menu-panel li { border-bottom: 1px solid var(--rule); }
.menu-panel a:not(.btn) { display: block; padding: 0.9rem 0; font-size: 1.0625rem; }
.menu-panel .btn { width: 100%; }

@media (max-width: 1139px) {
  .main-nav, .header-cta { display: none; }
  .menu { display: block; }
  .header-tools { margin-left: auto; }
  .brand img { height: 40px; }
}
@media (max-width: 600px) {
  .brand img { height: 34px; }
}
@media (max-width: 440px) {
  .wordmark { font-size: 1.2rem; }
  .wordmark::after { right: -7px; bottom: -6px; width: 12px; height: 9px; }
  .brand img { height: 30px; }
  .header-inner { gap: 0.75rem; }
  .header-tools { gap: 0.4rem; }
  .lang > * { padding: 0.35rem 0.4rem; }
  .menu-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .menu > summary { min-width: 44px; padding: 0.35rem 0.55rem; justify-content: center; }
}
@media (max-width: 374px) {
  .brand img { height: 26px; }
  .wordmark { font-size: 1.08rem; }
  .header-inner { gap: 0.6rem; }
  .header-tools { gap: 0.3rem; }
  .lang > * { padding: 0.3rem 0.32rem; }
}
@media (max-width: 340px) {
  .brand img { height: 24px; }
}

/* ------------------------------------------------------------------ sections */
.section { padding-block: var(--section-y); border-top: 1px solid var(--rule); }
.section[id] { scroll-margin-top: calc(var(--header-h) + 8px); }
.on-sheet { background: var(--sheet); }

.sec-head {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(1.25rem, 4vw, 4rem); align-items: end;
  margin-bottom: clamp(2.5rem, 4vw, 4rem);
}
.sec-head .intro { font-size: 1.125rem; margin: 0; }
@media (max-width: 859px) {
  .sec-head { grid-template-columns: 1fr; align-items: start; }
}

.block { border-top: 2px solid var(--graphite); padding-top: 1rem; }
.block h3 { margin-bottom: 0.75rem; }

ul.ruled { list-style: none; margin: 0; padding: 0; }
ul.ruled li { padding: 0.6rem 0; border-bottom: 1px solid var(--rule); }

/* ------------------------------------------------------------------ hero */
.hero { padding-block: clamp(2.5rem, 1.8rem + 3vw, 4.5rem) clamp(3.5rem, 2.5rem + 4vw, 6rem); border-top: 0; }
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 4.5vw, 4.5rem); align-items: center;
}
.hero h1 { margin-bottom: 1.5rem; }
.hero .lead { font-size: clamp(1.125rem, 1.04rem + 0.35vw, 1.3rem); line-height: 1.5; }
.hero-text p:not(.lead) { color: var(--iron); }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

.sheet {
  position: relative; margin: 0;
  background: var(--sheet);
  border: 1px solid var(--graphite);
  padding: 7px;
}
.sheet::after {
  content: ""; position: absolute; right: -11px; bottom: -11px;
  width: 44px; height: 44px;
  border-right: 4px solid var(--molten); border-bottom: 4px solid var(--molten);
  pointer-events: none;
}
.sheet-inner { border: 1.5px solid var(--graphite); display: flex; flex-direction: column; }
.sheet-drawing { padding: clamp(10px, 2vw, 22px) clamp(10px, 2vw, 22px) 6px; }

.titleblock {
  align-self: flex-end;
  width: min(100%, 28rem);
  display: grid; grid-template-columns: 1fr 1fr;
  margin: 0;
  border-top: 1.5px solid var(--graphite);
  border-left: 1.5px solid var(--graphite);
}
.tb-cell { padding: 0.4rem 0.7rem 0.5rem; border-bottom: 1px solid var(--graphite); }
.tb-cell:last-child, .tb-cell.last { border-bottom: 0; }
.tb-cell.wide { grid-column: 1 / -1; }
.tb-cell.half-first { border-right: 1px solid var(--graphite); }
.tb-cell dt { font-size: 0.6875rem; font-weight: 500; color: var(--iron); line-height: 1.3; }
.tb-cell dd { margin: 0.1rem 0 0; font-size: 0.875rem; font-weight: 600; line-height: 1.35; }

@media (max-width: 999px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-text { max-width: 40rem; }
}
@media (max-width: 559px) {
  .titleblock { width: 100%; border-left: 0; }
  .sheet::after { right: -8px; bottom: -8px; width: 32px; height: 32px; border-width: 3px; }
}

/* drawing: final state is the default; motion only adds the intro */
.drawing { width: 100%; height: auto; color: var(--graphite); overflow: visible; }
/* edges scale with the drawing (no non-scaling-stroke): pathLength-based dash animation needs user units */
.drawing .edges path,
.drawing .edges circle {
  fill: none; stroke: currentColor; stroke-width: 1.2;
  stroke-linejoin: round;
}
.drawing .melt path { fill: var(--iron-fill); }
.drawing .glow { opacity: 0; }
.drawing .glow path { fill: var(--molten); }
.drawing .hatch path { stroke: none; }
.drawing .centre line,
.drawing .centre circle {
  fill: none; stroke: currentColor; stroke-width: 0.8;
  stroke-dasharray: 11 2.5 2 2.5; vector-effect: non-scaling-stroke;
}
.drawing .hidden-line circle {
  fill: none; stroke: currentColor; stroke-width: 0.8;
  stroke-dasharray: 5 3; vector-effect: non-scaling-stroke;
}
.drawing .cut line { stroke: currentColor; stroke-width: 2.4; vector-effect: non-scaling-stroke; }
.drawing .cut line.thin { stroke-width: 0.8; }
.drawing .dims line,
.drawing .dims path { fill: none; stroke: currentColor; stroke-width: 0.75; vector-effect: non-scaling-stroke; }
.drawing .ah { fill: currentColor; stroke: none; }
.drawing text { font-family: var(--font-body); font-size: 7.2px; fill: currentColor; }
.drawing .view-label, .drawing .cut-letter { font-size: 9px; font-weight: 600; }

@media (prefers-reduced-motion: no-preference) {
  .drawing .edges path,
  .drawing .edges circle {
    stroke-dasharray: 1;
    animation: ib-draw 1.5s cubic-bezier(0.35, 0.1, 0.25, 1) both;
  }
  .drawing .edges-side circle,
  .drawing .edges-side path { animation-delay: 0.3s; }
  .drawing .centre,
  .drawing .hidden-line,
  .drawing .cut,
  .drawing .dims { animation: ib-fade 0.7s ease-out 1.2s both; }
  .drawing .melt path { animation: ib-melt 2.6s ease-in-out 1.1s both; }
  .drawing .glow { animation: ib-glow 2.6s ease-out 1.1s both; }
  .drawing .hatch { animation: ib-fade 0.9s ease-out 3.2s both; }
}
@keyframes ib-draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@keyframes ib-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes ib-melt {
  0% { fill: #FFE3A3; fill-opacity: 0; }
  12% { fill: #FFE3A3; fill-opacity: 1; }
  34% { fill: #FE680B; fill-opacity: 1; }
  62% { fill: #A13C0E; fill-opacity: 1; }
  100% { fill: #CDD1D3; fill-opacity: 1; }
}
@keyframes ib-glow {
  0% { opacity: 0; }
  20% { opacity: 0.85; }
  55% { opacity: 0.4; }
  100% { opacity: 0; }
}

/* ------------------------------------------------------------------ reproduction */
.rep-grid {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 0.9fr);
  gap: clamp(1.5rem, 3.5vw, 3.5rem);
}
.route { border-top: 2px solid var(--graphite); padding-top: 1.25rem; }
.route .icon { width: 60px; height: 60px; margin-bottom: 1rem; color: var(--graphite); }
.icon .i-thick { fill: none; stroke: currentColor; stroke-width: 2; stroke-linejoin: round; }
.icon .i-thin { fill: none; stroke: currentColor; stroke-width: 1; }
.icon .i-solid { fill: var(--sheet); stroke: currentColor; stroke-width: 2; stroke-linejoin: round; }
.route h3 { font-size: 1.1875rem; }
.cases { border-top: 1px solid var(--graphite); padding-top: 1.25rem; font-size: 0.975rem; }
.cases ul { list-style: none; margin: 0 0 1rem; padding: 0; }
.cases li { position: relative; padding: 0.45rem 0 0.45rem 1.1rem; }
.cases li::before {
  content: ""; position: absolute; left: 0; top: 0.95em;
  width: 7px; height: 7px; background: var(--molten);
}
.cases .note { color: var(--iron); font-size: 0.875rem; }

.chain {
  display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  gap: clamp(1rem, 3vw, 3rem); align-items: start;
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}
.chain p { margin: 0; font-weight: 600; }
.chain ol {
  position: relative;
  display: flex; justify-content: space-between; gap: 0.5rem;
  margin: 0; padding: 0; list-style: none;
}
.chain ol::before {
  content: ""; position: absolute; left: 6px; right: 6px; top: 6px;
  border-top: 2px solid var(--graphite);
}
.chain li { position: relative; flex: 1 1 0; padding-top: 1.6rem; font-size: 0.9375rem; font-weight: 500; line-height: 1.3; }
.chain li::before {
  content: ""; position: absolute; left: 0; top: 0;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--sheet); border: 2px solid var(--graphite);
}
.chain li:last-child { text-align: right; }
.chain li:last-child::before { left: auto; right: 0; background: var(--molten); border-color: var(--molten); }

@media (max-width: 999px) {
  .rep-grid { grid-template-columns: 1fr 1fr; }
  .cases { grid-column: 1 / -1; }
  .chain { grid-template-columns: 1fr; }
}
@media (max-width: 639px) {
  .rep-grid { grid-template-columns: 1fr; }
  .chain ol { flex-direction: column; gap: 0; }
  .chain ol::before { left: 6px; right: auto; top: 8px; bottom: 8px; border-top: 0; border-left: 2px solid var(--graphite); }
  .chain li { padding: 0.4rem 0 0.4rem 1.75rem; }
  .chain li::before { top: 0.55rem; }
  .chain li:last-child { text-align: left; }
  .chain li:last-child::before { left: 0; right: auto; }
}

/* ------------------------------------------------------------------ capabilities */
.cap-grid {
  display: grid; grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(2rem, 3.5vw, 3.5rem) clamp(1.5rem, 3.5vw, 3.5rem);
}
.cap-mat { grid-column: span 7; }
.cap-proc { grid-column: span 5; }
.cap-parts { grid-column: span 4; }
.cap-ind { grid-column: span 3; }
.cap-beyond { grid-column: span 5; }
.cap-beyond p { color: var(--graphite); }

table.spec { width: 100%; border-collapse: collapse; }
table.spec thead th {
  position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}
table.spec th {
  text-align: left; font-size: 0.8125rem; font-weight: 500; color: var(--iron);
  padding: 0 0 0.5rem; border-bottom: 1px solid var(--graphite);
}
table.spec td { padding: 0.75rem 0.75rem 0.75rem 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
table.spec td:first-child { font-weight: 600; width: 42%; }

@media (max-width: 999px) {
  .cap-mat, .cap-proc { grid-column: 1 / -1; }
  .cap-parts { grid-column: span 6; }
  .cap-ind { grid-column: span 6; }
  .cap-beyond { grid-column: 1 / -1; }
}
@media (max-width: 559px) {
  .cap-parts, .cap-ind { grid-column: 1 / -1; }
}

/* ------------------------------------------------------------------ pulleys */
.pul-grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 4.5vw, 4.5rem); align-items: center;
}
.pul-text h2 { margin-bottom: 1.5rem; }
.pul-text .btn { margin-top: 1rem; }
.pul-figs {
  --s: 2.35px;
  list-style: none; margin: 0;
  padding: clamp(1.25rem, 2.5vw, 2rem) clamp(1rem, 2vw, 1.75rem) clamp(1rem, 2vw, 1.5rem);
  background: var(--paper);
  border: 1px solid var(--graphite);
  display: grid; grid-template-columns: repeat(3, auto);
  justify-content: space-around; align-items: end;
  gap: 1rem;
}
.pul-figs figure { margin: 0; display: flex; flex-direction: column; align-items: center; gap: 0.75rem; }
.pul-figs figcaption { font-size: 0.875rem; font-weight: 500; color: var(--iron); }
.mini { width: calc(var(--w) * var(--s)); height: auto; color: var(--graphite); }
.mini .fill { fill: var(--iron-fill); }
.mini .hatchfill { fill: url(#hatch-mini); }
.mini .edge { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.mini .c { stroke: currentColor; stroke-width: 0.8; stroke-dasharray: 8 2 1.5 2; vector-effect: non-scaling-stroke; }
.mini .hid { stroke: currentColor; stroke-width: 0.8; stroke-dasharray: 4 2; vector-effect: non-scaling-stroke; }

@media (max-width: 999px) {
  .pul-grid { grid-template-columns: 1fr; }
}

.gallery { margin-top: clamp(3rem, 5vw, 4.5rem); border-top: 2px solid var(--graphite); padding-top: 1rem; }
.gallery h3 { margin-bottom: 1.25rem; }
.gal-grid {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem) clamp(0.75rem, 1.5vw, 1.25rem);
}
.gal-grid figure { margin: 0; }
.gal-grid img {
  display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: cover;
  border: 1px solid var(--graphite); background: var(--paper);
}
.gal-grid figcaption { margin-top: 0.55rem; font-size: 0.875rem; line-height: 1.35; color: var(--iron); }
@media (max-width: 799px) {
  .gal-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 559px) {
  .pul-figs { --s: 1.12px; gap: 0.5rem; }
}

/* ------------------------------------------------------------------ process */
.proc h2 { margin-bottom: clamp(2.5rem, 4vw, 3.5rem); }
ol.steps {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(2rem, 3.5vw, 3rem) clamp(1.5rem, 3.5vw, 3.5rem);
  margin: 0; padding: 0; list-style: none;
}
.steps li { border-top: 2px solid var(--graphite); padding-top: 1rem; }
.step-n {
  display: block; margin-bottom: 0.9rem;
  font: 700 2.6rem/0.9 var(--font-head);
  color: var(--graphite);
}
.steps p { font-size: 0.975rem; }
@media (max-width: 999px) { ol.steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 599px) { ol.steps { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ working with us */
.col-grid {
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(2rem, 4.5vw, 4.5rem);
}
.col-head h2 { margin-bottom: 1.25rem; }
.col-head p { color: var(--iron); }
.col-list {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 0 clamp(1.5rem, 3.5vw, 3rem);
  margin: 0; padding: 0; list-style: none;
}
.col-list li { padding: 1.25rem 0 1.5rem; border-top: 1px solid var(--graphite); }
.col-list p { font-size: 0.975rem; }
@media (max-width: 899px) {
  .col-grid { grid-template-columns: 1fr; }
}
@media (max-width: 599px) {
  .col-list { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------------ about */
.about-grid {
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2rem, 4.5vw, 4.5rem); align-items: start;
}
.about h2 { margin-bottom: 1.75rem; }
.about-name { font: 700 1.75rem/1.1 var(--font-head); margin: 0 0 0.2rem; }
.about-role { color: var(--iron); margin-bottom: 1.5rem; }
.datasheet { margin: 0; background: var(--sheet); border: 1px solid var(--graphite); }
.on-sheet .datasheet { background: var(--paper); }
.datasheet > div {
  display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); gap: 1rem;
  padding: 0.85rem 1.1rem; border-bottom: 1px solid var(--rule);
}
.datasheet > div:last-child { border-bottom: 0; }
.datasheet dt { font-size: 0.8125rem; font-weight: 500; color: var(--iron); padding-top: 0.15rem; }
.datasheet dd { margin: 0; font-weight: 500; }
@media (max-width: 899px) { .about-grid { grid-template-columns: 1fr; } }
@media (max-width: 459px) { .datasheet > div { grid-template-columns: 1fr; gap: 0.15rem; } }

/* ------------------------------------------------------------------ faq */
.faq-grid {
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(1.5rem, 4.5vw, 4.5rem); align-items: start;
}
.faq-list details { border-top: 1px solid var(--rule); }
.faq-list details:last-child { border-bottom: 1px solid var(--rule); }
.faq-list summary {
  position: relative; list-style: none; cursor: pointer;
  padding: 1.1rem 2.75rem 1.1rem 0;
  font-weight: 600; font-size: 1.0625rem; line-height: 1.4;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before,
.faq-list summary::after {
  content: ""; position: absolute; right: 0.4rem; top: 50%;
  width: 14px; height: 2px; background: var(--graphite);
  transition: transform 0.2s ease;
}
.faq-list summary::after { transform: rotate(90deg); }
.faq-list details[open] summary::after { transform: rotate(0deg); }
.faq-list summary:hover { color: var(--molten-ink); }
.faq-a { padding: 0 2.75rem 1.4rem 0; }
@media (max-width: 899px) { .faq-grid { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ contact */
.contact { background: var(--graphite); color: var(--on-dark); border-top: 0; }
.contact a:not(.btn) { color: var(--on-dark); }
.contact a:not(.btn):hover { color: var(--molten); }
.contact :focus-visible { outline-color: var(--molten); }
.contact-grid {
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2.5rem, 5vw, 5rem); align-items: start;
}
.contact h2 { margin-bottom: 1.5rem; }
.contact .lead { font-size: 1.1875rem; line-height: 1.5; margin-bottom: 2.25rem; }
.contact h3 { color: var(--on-dark); }
.checklist { list-style: none; margin: 0; padding: 0; max-width: 34rem; }
.checklist li {
  position: relative; padding: 0.65rem 0 0.65rem 1.9rem;
  border-bottom: 1px solid var(--rule-dark);
}
.checklist li::before {
  content: ""; position: absolute; left: 0.15rem; top: 1.05rem;
  width: 10px; height: 5px;
  border-left: 2px solid var(--molten); border-bottom: 2px solid var(--molten);
  transform: rotate(-45deg);
}
.contact-card {
  position: relative;
  border: 1px solid var(--rule-dark);
  padding: clamp(1.5rem, 3vw, 2.25rem);
}
.contact-card::after {
  content: ""; position: absolute; right: -9px; bottom: -9px;
  width: 40px; height: 40px;
  border-right: 4px solid var(--molten); border-bottom: 4px solid var(--molten);
}
.cc-name { font: 700 1.75rem/1.1 var(--font-head); margin: 0 0 0.25rem; }
.cc-org { color: var(--on-dark-muted); margin-bottom: 1.5rem; }
.cc-actions { list-style: none; margin: 0 0 1.25rem; padding: 0; display: grid; gap: 0.65rem; }
.cc-actions .btn { width: 100%; }
.cc-mail { font-weight: 600; margin-bottom: 1.25rem; overflow-wrap: anywhere; }
.cc-note { color: var(--on-dark-muted); font-size: 0.9375rem; }
.cc-b2b { color: var(--on-dark-muted); font-size: 0.875rem; margin-top: 0.75rem; }
@media (max-width: 899px) { .contact-grid { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ footer */
.site-footer {
  background: var(--graphite-deep); color: var(--on-dark-muted);
  padding-block: 3rem 2rem; font-size: 0.9375rem;
}
.site-footer a { color: var(--on-dark); text-decoration: none; }
.site-footer a:hover { color: var(--molten); text-decoration: underline; }
.site-footer :focus-visible { outline-color: var(--molten); }
.footer-grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 3fr);
  gap: 2rem; padding-bottom: 2rem; border-bottom: 1px solid var(--rule-dark);
}
.footer-grid .brand { color: var(--on-dark); margin-bottom: 0.9rem; }
.footer-grid .brand img { height: 38px; }
.site-footer address { font-style: normal; line-height: 1.7; }
.f-nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; }
.f-bottom { padding-top: 1.25rem; font-size: 0.8125rem; }
.f-bottom p { margin: 0; }
@media (max-width: 799px) { .footer-grid { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ legal + 404 */
.legal { padding-block: clamp(2.5rem, 2rem + 3vw, 4.5rem) var(--section-y); }
.legal-content { max-width: 46rem; }
.legal h1 { font-size: clamp(2.2rem, 1.6rem + 2.2vw, 3.3rem); margin-bottom: 2rem; }
.legal h2 {
  font: 600 1.25rem/1.35 var(--font-body);
  letter-spacing: -0.006em;
  margin: 2.5rem 0 0.75rem; text-wrap: pretty;
}
.legal h3 { margin-top: 1.5rem; }
.legal address { font-style: normal; margin-bottom: 1rem; line-height: 1.6; }
.legal ul { padding-left: 1.2rem; }
.legal li { margin-bottom: 0.35rem; }
.legal .stand { color: var(--iron); font-size: 0.9375rem; margin-top: 2.5rem; }
.legal .lang-note { color: var(--iron); border-left: 3px solid var(--rule); padding-left: 1rem; }
.nf { padding-block: clamp(4rem, 3rem + 6vw, 8rem); }
.nf p { font-size: 1.125rem; margin: 1.25rem 0 2rem; }

@media print {
  .site-header, .menu, .skip, .actions, .cc-actions { display: none !important; }
  body { background: #fff; }
  .contact, .site-footer { background: #fff; color: #000; }
}