:root {
  color-scheme: light;
  --ink: #1a1a1a;
  --muted: #555555;
  --paper: #ffffff;
  --surface: #ffffff;
  --surface-soft: #f5f6f8;
  --line: #d9d9d9;
  --accent: #f2c94c;
  --accent-strong: #e76f24;
  --brand-dark: #1b0c41;
  --brand-mid: #5a0f5a;
  --brand-hot: #f1605d;
  --state-ok: #27ae60;
  --state-error: #eb5757;
  --shadow: 0 18px 45px rgba(26, 26, 26, .12);
  --max: 1180px;
  --radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}
a { color: inherit; text-decoration-color: rgba(231, 111, 36, .45); text-underline-offset: .2em; }
img { display: block; max-width: 100%; height: auto; }
p, h1, h2, h3 { margin-top: 0; }
p { color: var(--muted); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: absolute;
  left: -999px;
  top: 1rem;
  z-index: 1000;
  padding: .75rem 1rem;
  background: var(--ink);
  color: #fff;
}
.skip-link:focus { left: 1rem; }

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1rem clamp(1rem, 3vw, 2rem);
  background: rgba(27, 12, 65, .94);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
  backdrop-filter: blur(16px);
}
.brand {
  display: inline-flex;
  align-items: center;
  width: 72px;
  min-height: 56px;
}
.brand img {
  width: 72px;
  height: 72px;
  object-fit: contain;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: var(--radius);
  background: transparent;
  color: #fff;
}
.nav-toggle span:not(.sr-only) {
  display: block;
  width: 19px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 1.7rem);
  font-size: .92rem;
  font-weight: 700;
}
.site-nav a { text-decoration: none; opacity: .88; }
.site-nav a:hover, .site-nav a:focus { opacity: 1; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: .78rem 1.05rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  line-height: 1.1;
  text-decoration: none;
  cursor: pointer;
}
.button.primary { background: var(--accent); color: var(--ink); border-color: var(--accent); }
.button.secondary { background: #fff; color: var(--brand-dark); border-color: var(--line); }
.button.ghost { background: transparent; color: var(--brand-dark); border-color: var(--line); }
.button:hover, .button:focus { transform: translateY(-1px); box-shadow: var(--shadow); }
.text-link {
  font-weight: 800;
  color: var(--brand-dark);
}
.hero-actions, .section-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  padding: 8rem clamp(1rem, 5vw, 4rem) 4rem;
  color: #fff;
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(14, 14, 17, .9), rgba(27, 12, 65, .55) 52%, rgba(27, 12, 65, .24)),
    url("../images/demex-print-head.jpg") center / cover no-repeat;
}
.hero-content {
  position: relative;
  width: min(760px, 100%);
  z-index: 1;
}
.hero h1 {
  max-width: 790px;
  margin-bottom: 1.65rem;
  font-size: clamp(3rem, 7vw, 6.6rem);
  line-height: .95;
  letter-spacing: 0;
}
.hero .lead {
  max-width: 680px;
  margin-bottom: 1.8rem;
  color: rgba(255, 255, 255, .86);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}
.hero .text-link { color: #fff; }
.hero .button.ghost {
  color: #fff;
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .42);
}

.section {
  padding: clamp(2.75rem, 5.5vw, 4.75rem) clamp(1rem, 4vw, 2rem);
}
.home-page .hero {
  min-height: 82vh;
  padding-bottom: clamp(2.75rem, 4vw, 3.75rem);
}
.home-page .section {
  padding-block: clamp(2.75rem, 5.5vw, 4.75rem);
}
.home-page .two-column {
  gap: clamp(1.5rem, 4vw, 3.4rem);
}
.home-page .section-heading {
  margin-bottom: 1.35rem;
}
.evidence-section {
  background: #fff;
}
.evidence-section h2 {
  max-width: 820px;
  font-size: clamp(1.85rem, 3.2vw, 3rem);
}
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.evidence-card {
  display: grid;
  gap: .75rem;
  min-height: 165px;
  padding: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(20, 32, 29, .06);
}
.evidence-card .metric {
  color: var(--accent);
  font-size: clamp(2rem, 3.6vw, 3rem);
  font-weight: 900;
  line-height: .95;
}
.evidence-card .metric.negative { color: var(--state-error); }
.evidence-card .metric.positive { color: var(--state-ok); }
.evidence-card b {
  display: block;
  margin-bottom: .15rem;
  color: var(--brand-mid);
  font-size: .82rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.evidence-card span {
  color: var(--muted);
  font-size: .96rem;
  line-height: 1.4;
}
.source-note {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: .85rem;
  line-height: 1.4;
}
.section.compact { padding-block: clamp(3rem, 6vw, 5rem); }
.section.band { background: var(--surface); }
.section-inner {
  width: min(var(--max), 100%);
  margin-inline: auto;
}
.section-heading {
  display: grid;
  gap: .35rem;
  max-width: 800px;
  margin-bottom: 2rem;
}
.section-heading.with-media {
  max-width: none;
  grid-template-columns: minmax(0, .95fr) minmax(0, .75fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}
.section-heading.with-media .media-frame img {
  min-height: 280px;
}
.eyebrow {
  margin-bottom: .65rem;
  color: var(--accent-strong);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.hero .eyebrow { color: var(--accent); }
h2 {
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1.02;
  letter-spacing: 0;
}
h3 {
  margin-bottom: .55rem;
  font-size: 1.18rem;
  line-height: 1.2;
}
.lead {
  max-width: 780px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.32rem);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.contact-options {
  align-items: stretch;
}
.contact-options > .fit-panel,
.contact-options > .result-panel {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  align-content: start;
  gap: 1rem;
  height: 100%;
}
.contact-options h2 {
  min-height: 2.45em;
  display: flex;
  align-items: flex-start;
  margin-bottom: 0;
}
.contact-options .lead {
  margin-bottom: 0;
}
.contact-options .button {
  align-self: flex-start;
}
.card-grid, .detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.resource-card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.detail-grid-spaced { margin-top: 1rem; }
.feature-card {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(20, 32, 29, .06);
}
.feature-card strong {
  display: inline-flex;
  margin-bottom: .8rem;
  color: var(--brand-mid);
  font-size: .82rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.feature-card p:last-child { margin-bottom: 0; }
.feature-card .button {
  align-self: flex-start;
  margin-top: auto;
}
.resource-card-grid .feature-card h2 {
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.05;
  min-height: 3.1em;
  overflow-wrap: anywhere;
}
.resource-card-grid .feature-card p {
  margin-top: 0;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.application-card {
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  padding: 1.2rem;
  border-radius: var(--radius);
  background: var(--brand-dark);
  color: #fff;
  text-decoration: none;
}
.application-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .5;
}
.application-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(27, 12, 65, .08), rgba(27, 12, 65, .88));
}
.application-card > *:not(img) { position: relative; z-index: 1; }
.application-card p { color: rgba(255, 255, 255, .82); }
.application-card .button.secondary {
  background: #fff;
  color: var(--brand-dark);
  border-color: var(--line);
}
.application-card.object-card {
  background:
    radial-gradient(circle at 50% 28%, rgba(255, 255, 255, .68), rgba(91, 15, 90, .38) 42%, rgba(27, 12, 65, .98) 78%),
    var(--brand-dark);
  color: #fff;
}
.application-card.object-card img {
  object-fit: contain;
  padding: 1rem 1rem 3.8rem;
  opacity: .9;
  filter: drop-shadow(0 22px 28px rgba(0, 0, 0, .35));
}
.application-card.object-card::after {
  background: linear-gradient(180deg, rgba(27, 12, 65, .05), rgba(27, 12, 65, .92));
}
.application-card.object-card p { color: rgba(255, 255, 255, .84); }
.supporter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.supporter-card {
  min-height: 190px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1.15rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(20, 32, 29, .06);
  text-align: center;
  text-decoration: none;
}
.supporter-card img {
  width: 100%;
  height: 105px;
  object-fit: contain;
}
.supporter-card span {
  color: var(--brand-dark);
  font-size: .9rem;
  font-weight: 900;
  letter-spacing: .02em;
}
.supporter-card[href]:hover,
.supporter-card[href]:focus {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.fit-panel, .result-panel {
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.fit-step {
  display: grid;
  gap: .8rem;
  padding-block: 1rem;
  border-bottom: 1px solid var(--line);
}
.fit-step:last-child { border-bottom: 0; }
.fit-copy {
  display: grid;
  gap: .65rem;
  padding-block: 1rem .3rem;
}
.fit-review-list {
  display: grid;
  gap: .55rem;
  margin: 0 0 1.25rem;
  padding-left: 1.15rem;
  color: var(--muted);
}
.fit-step label {
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  color: var(--ink);
}
.fit-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, .65fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
.fit-layout .fit-form fieldset {
  margin: 0;
  border: 0;
}
.fit-layout .fit-form legend,
.fit-layout .fit-result label {
  margin-bottom: .45rem;
  color: var(--ink);
  font-weight: 900;
}
.fit-layout .fit-form input[type="text"],
.fit-layout .fit-form select,
.fit-layout .fit-form textarea,
.fit-layout .fit-result textarea {
  width: 100%;
  padding: .8rem .9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font: inherit;
}
.fit-layout .fit-form textarea,
.fit-layout .fit-result textarea {
  resize: vertical;
}
.fit-layout .checkbox-grid,
.fit-layout .field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .7rem 1rem;
}
.fit-layout .field-grid label {
  display: grid;
  gap: .35rem;
  font-weight: 800;
}
.fit-layout .fit-result {
  position: sticky;
  top: 6.5rem;
  scroll-margin-top: 6.5rem;
}
#fit-summary { scroll-margin-top: 6.5rem; }
.fit-layout .result-panel {
  border-left: 5px solid var(--accent);
  background: #fffdfa;
}
.fit-layout .fit-result[data-fit-state="strong"] {
  border-left-color: var(--state-ok);
  background: #f4fbf7;
}
.fit-layout .fit-result[data-fit-state="check"],
.fit-layout .fit-result[data-fit-state="diagnosis"] {
  border-left-color: var(--accent);
  background: #fffdfa;
}
.fit-layout .fit-result[data-fit-state="other"] {
  border-left-color: var(--state-error);
  background: #fff7f6;
}
.fit-layout .fit-result h2 {
  font-size: clamp(1.7rem, 3vw, 2.45rem);
}
.tech-detail {
  margin-bottom: .8rem;
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.tech-detail summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 900;
}
.tech-detail p,
.tech-detail ul {
  margin: .85rem 0 0;
}

.page-hero {
  padding: 8rem clamp(1rem, 4vw, 2rem) 3.25rem;
  background: var(--brand-dark);
  color: #fff;
}
.page-hero.has-image {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(27, 12, 65, .94), rgba(27, 12, 65, .66) 52%, rgba(27, 12, 65, .32)),
    var(--page-hero-image) var(--page-hero-position, center) / var(--page-hero-size, cover) no-repeat;
}
.page-hero.has-image .section-inner {
  position: relative;
  z-index: 1;
}
.page-hero.technology-hero {
  --page-hero-image: url("../images/technology-hero-overprinting-v2.jpg");
  --page-hero-position: center 48%;
}
.page-hero.applications-hero {
  --page-hero-image: url("../images/applications-hero-marine.avif");
  --page-hero-position: center 48%;
}
.page-hero.marine-hero {
  --page-hero-image: url("../images/marine-hero-searush-bw.avif");
  --page-hero-position: center 44%;
}
.page-hero.oil-gas-hero {
  --page-hero-image: url("../images/oil-gas-paek-seal.png");
  --page-hero-position: right 42%;
  --page-hero-size: 54% auto;
}
.page-hero.molds-tooling-hero {
  --page-hero-image: url("../images/molds-tooling-hero-nlr.png");
  --page-hero-position: center bottom;
}
.page-hero.system-hero {
  --page-hero-image: url("../images/system-hero-demex-02.jpg");
  --page-hero-position: center bottom;
}
.page-hero.fit-hero {
  --page-hero-image: url("../images/fit-hero-demex.jpg");
  --page-hero-position: center top;
}
.page-hero.resources-hero {
  --page-hero-image: url("../images/resources-hero-cfr-pc-layer.jpg");
  --page-hero-position: center 50%;
}
.page-hero.contact-hero {
  --page-hero-image: url("../images/contact-hero-expert.jpg");
  --page-hero-position: center 52%;
}
.page-hero h1 {
  max-width: 920px;
  font-size: clamp(2.6rem, 6vw, 5.4rem);
  line-height: .98;
  letter-spacing: 0;
}
.page-hero .lead { color: rgba(255, 255, 255, .82); }
.legal-content {
  max-width: 820px;
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.media-frame {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface-soft);
  box-shadow: var(--shadow);
}
.media-frame img {
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
}
.media-frame.contain img {
  object-fit: contain;
  padding: clamp(1rem, 3vw, 2rem);
  background: var(--surface-soft);
}
.media-frame.data-preview,
.media-frame.data-preview img {
  background: #0e0e11;
}
.media-frame.data-preview img {
  min-height: 280px;
  padding: .5rem;
}
.media-frame.cooling-media,
.media-frame.cooling-media img {
  background: #0e0e11;
}
.inline-system-media {
  width: min(560px, 100%);
  margin-top: 1rem;
  margin-inline: auto;
}
.inline-system-media img {
  max-height: 300px;
  min-height: 0;
}
.compact-media img {
  max-height: 420px;
  min-height: 0;
}
.spec-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.spec-list div {
  padding: 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.spec-list strong {
  display: block;
  margin-bottom: .4rem;
  color: var(--brand-mid);
}
.resource-list {
  display: grid;
  gap: .8rem;
}
.resource-intro {
  max-width: 620px;
  justify-self: center;
  text-align: center;
}
.resource-intro .lead {
  margin-inline: auto;
}
.resource-list a {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 800;
}

.site-footer {
  padding: 3rem clamp(1rem, 4vw, 2rem);
  background: var(--brand-dark);
  color: #fff;
}
.footer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .9fr);
  gap: 2rem;
  align-items: start;
}
.footer-logo {
  width: 88px;
  height: auto;
  max-height: 88px;
  object-fit: contain;
  margin-bottom: 1rem;
}
.site-footer p { max-width: 420px; color: rgba(255, 255, 255, .76); }
.site-footer nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem 1.25rem;
}
.site-footer a { color: #fff; text-decoration-color: rgba(255, 255, 255, .35); }

@media (max-width: 900px) {
  .card-grid, .application-grid, .detail-grid, .spec-list, .supporter-grid, .evidence-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .two-column, .footer-layout, .fit-layout, .section-heading.with-media {
    grid-template-columns: 1fr;
  }
  .fit-layout .fit-result { position: static; }
}

@media (max-width: 760px) {
  .site-header {
    align-items: center;
    flex-wrap: wrap;
    padding-block: .55rem;
  }
  .brand {
    width: 62px;
    min-height: 48px;
  }
  .brand img {
    width: 62px;
    height: 62px;
  }
  .nav-toggle { display: inline-block; }
  .site-nav {
    display: none;
    flex-basis: 100%;
    width: 100%;
    gap: 0;
    padding-top: .5rem;
  }
  .site-nav[data-open] { display: grid; }
  .site-nav a {
    padding: .85rem 0;
    border-top: 1px solid rgba(255, 255, 255, .14);
  }
  .hero { min-height: auto; padding-top: 7rem; }
  .hero h1, .page-hero h1 { font-size: clamp(2.2rem, 12vw, 3.4rem); }
  .two-column, .card-grid, .application-grid, .detail-grid, .spec-list, .supporter-grid, .evidence-grid { grid-template-columns: 1fr; }
  .hero-actions, .section-actions { align-items: stretch; }
  .button { width: 100%; }
  .fit-layout .checkbox-grid, .fit-layout .field-grid { grid-template-columns: 1fr; }
  .site-footer nav { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  .section { padding-inline: 1rem; }
  .hero { padding-inline: 1rem; }
  .application-card { min-height: 230px; }
  .site-footer nav { grid-template-columns: 1fr; }
}