:root {
  --ink: #1b1f24;
  --graphite: #1c2126;
  --graphite-2: #262c33;
  --muted: #5a656f;
  --line: #d7dce1;
  --paper: #f3f5f7;
  --white: #ffffff;
  --accent: #1e4f5c;
  --accent-dark: #163b45;
  --danger: #8c2f2f;
  --danger-bg: #f8eeee;
  --display: "Barlow Condensed", "Arial Narrow", "Segoe UI", sans-serif;
  --sans: "Source Sans 3", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --wrap: 1120px;
  color-scheme: light;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent-dark); }

a:hover { color: var(--accent); }

h1, h2, h3, p { overflow-wrap: break-word; }

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 0;
}

h1 { font-size: clamp(2.7rem, 6vw, 4.6rem); }

h2 { font-size: clamp(2rem, 4vw, 3rem); }

h3 {
  font-family: var(--sans);
  font-size: 1.2rem;
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: 0;
}

p { margin: 0; }

ul, ol { margin: 0; padding: 0; }

.wrap {
  width: min(var(--wrap), calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 80;
  background: #fff;
  color: var(--ink);
  padding: 8px 12px;
  text-decoration: none;
}

.skip-link:focus { top: 12px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.utility :focus-visible,
.hero :focus-visible,
.site-footer :focus-visible,
.cta-band :focus-visible { outline-color: #fff; }

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

.utility {
  background: var(--graphite);
  color: #d5dbe1;
  font-size: 0.86rem;
}

.utility-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
  min-height: 36px;
  align-items: center;
  padding: 6px 0;
}

.utility a { color: #fff; text-decoration: none; }

.utility a:hover { text-decoration: underline; }

.utility-meta { display: flex; gap: 8px; flex-wrap: wrap; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  min-width: 0;
}

.logo-mark { flex: none; color: var(--ink); }

.logo-name {
  display: block;
  font-family: var(--display);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: none;
}

.logo-tag {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.site-nav { margin-left: auto; }

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  padding: 10px 10px;
  font-size: 0.98rem;
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.header-cta { margin-left: 8px; flex: none; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 10px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

.nav-toggle-bars {
  width: 16px;
  height: 10px;
  border-top: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.btn-light { background: #fff; color: var(--graphite); }

.btn-light:hover { background: #e7ebee; color: var(--graphite); }

.btn-line { border-color: rgba(255, 255, 255, 0.72); color: #fff; }

.btn-line:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }

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

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

.btn-dark {
  background: var(--graphite);
  color: #fff;
}

.btn-dark:hover { background: #000; color: #fff; }

.btn[disabled] { opacity: 0.6; cursor: wait; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.1fr);
  min-height: clamp(560px, calc(100vh - 108px), 820px);
  background: var(--graphite);
  color: #fff;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(36px, 6vw, 80px) clamp(24px, 5vw, 72px);
}

#icerik:focus { outline: none; }

.kicker {
  margin: 0 0 14px;
  color: #9ec3cc;
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  text-transform: none;
}

.hero h1 { max-width: 16ch; }

.lede, .hero .lede {
  max-width: 38rem;
  margin-top: 18px;
  color: #d5dbe1;
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-aside { margin-top: 18px; }

.hero-aside a { color: #fff; }

.hero-media {
  background:
    linear-gradient(#f7f8f9, #f7f8f9) padding-box;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-width: 0;
  padding: 28px 28px 20px;
}

.media-kicker {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
}

.hero-media img {
  width: 100%;
  height: auto;
  object-fit: contain;
  margin-top: auto;
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
  border-bottom: 1px solid var(--line);
}

.facts li {
  padding: 22px 18px;
  border-right: 1px solid var(--line);
}

.facts li:last-child { border-right: 0; }

.facts strong {
  display: block;
  font-family: var(--display);
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1;
}

.facts span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.section { padding: 84px 0; }

.section-paper { background: var(--paper); }

.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 18px;
  align-items: end;
  margin-bottom: 28px;
}

.section-index {
  font-family: var(--display);
  color: var(--accent);
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  grid-row: span 2;
  align-self: center;
}

.section-head p { color: var(--muted); max-width: 40rem; }

.prop-grid,
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.prop,
.industry {
  padding: 24px 22px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.prop-index,
.industry-index {
  font-family: var(--display);
  color: var(--accent);
  letter-spacing: 0.08em;
}

.prop h3,
.industry h3 { margin: 10px 0 8px; }

.prop p,
.industry p { color: var(--muted); }

.series-list { list-style: none; border-top: 1px solid var(--line); }

.series-list a {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 8px 18px;
  align-items: center;
  padding: 22px 4px;
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
}

.series-list a:hover { background: var(--paper); }

.series-code {
  font-family: var(--display);
  font-size: 1.8rem;
  letter-spacing: 0.04em;
}

.series-list small {
  display: block;
  color: var(--muted);
}

.series-range {
  font-family: var(--display);
  font-size: 1.5rem;
  color: var(--accent-dark);
  white-space: nowrap;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.checklist { list-style: none; }

.checklist li {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.checklist li:last-child { border-bottom: 1px solid var(--line); }

.checklist strong { display: block; }

.checklist span { color: var(--muted); }

.cta-band {
  background: var(--graphite);
  color: #fff;
  padding: 64px 0;
}

.cta-band .wrap {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
}

.cta-band p { color: #d5dbe1; max-width: 36rem; margin-top: 10px; }

.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.site-footer {
  background: #14181c;
  color: #c5ced6;
  padding: 56px 0 24px;
  font-size: 0.96rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 0.9fr 1.1fr;
  gap: 32px;
}

.footer-label {
  margin: 0 0 12px;
  color: #fff;
  font-weight: 650;
}

.footer-brand {
  font-family: var(--display);
  font-size: 2rem;
  color: #fff;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.site-footer a { color: #fff; text-decoration: none; }

.site-footer a:hover { text-decoration: underline; }

.site-footer ul { list-style: none; }

.site-footer li + li { margin-top: 6px; }

.footer-base {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 36px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #9aa6b0;
  font-size: 0.88rem;
}

.page-hero {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 36px 0 40px;
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.92rem;
}

.crumbs a { color: var(--muted); }

.page-hero .lede { color: var(--muted); }

.crumbs [aria-current="page"] { color: var(--ink); text-decoration: none; }

.page { padding: 56px 0 80px; }

.prose { max-width: 44rem; }

.prose h2,
.service h2 {
  font-family: var(--sans);
  font-size: 1.45rem;
  line-height: 1.25;
  margin-top: 4px;
}

.prose p + p,
.stack > * + * { margin-top: 14px; }

.note {
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 14px;
  color: var(--muted);
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }

.chip {
  border: 1px solid var(--line-strong, #c3cad1);
  background: #fff;
  padding: 6px 10px;
  font-size: 0.92rem;
}

.product-intro {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
  margin-bottom: 36px;
}

.schematic, .product-photo {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 16px;
}

.schematic svg { width: 100%; height: auto; display: block; }

figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  margin-top: 8px;
}

.table-scroll:focus-visible { outline-offset: 2px; }

table.spec, table.compare, table.factors {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

table.spec { min-width: 880px; }

table.spec th,
table.spec td,
table.compare th,
table.compare td,
table.factors th,
table.factors td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

table.spec thead th,
table.compare thead th,
table.factors thead th {
  background: var(--graphite);
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
}

table.spec th:first-child,
table.spec td:first-child {
  position: sticky;
  left: 0;
}

table.spec thead th:first-child { background: var(--graphite); }

table.spec tbody th {
  background: #fff;
  font-weight: 650;
}

caption {
  caption-side: top;
  text-align: left;
  font-weight: 650;
  padding: 0 0 10px;
}

.service-list { list-style: none; }

.service {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.service:last-child { border-bottom: 1px solid var(--line); }

.service-no {
  font-family: var(--display);
  font-size: 2rem;
  color: var(--accent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
}

.aside-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 22px;
}

.aside-card h2 {
  font-family: var(--sans);
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.aside-card p + p { margin-top: 8px; }

.faq details { border-top: 1px solid var(--line); }

.faq details:last-child { border-bottom: 1px solid var(--line); }

.faq summary {
  cursor: pointer;
  font-weight: 650;
  padding: 18px 4px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  font-family: var(--display);
  font-size: 1.6rem;
  line-height: 1;
  color: var(--accent);
  flex: none;
}

.faq details[open] summary::after { content: "–"; }

.faq details .answer { padding: 0 4px 18px; max-width: 46rem; color: var(--muted); }

.contact-grid,
.selector-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 40px;
  align-items: start;
}

.selector-grid { grid-template-columns: 1fr 1fr; }

.result-card, .form-card {
  border: 1px solid var(--line);
  background: #fff;
  padding: 22px;
}

.result-card {
  background: var(--paper);
  position: sticky;
  top: 88px;
}

.result-card h2 {
  font-size: 2rem;
  margin: 6px 0 8px;
}

.result-card .hero-actions { margin-top: 18px; }

.scroll-hint { display: none; color: var(--muted); font-size: 0.9rem; margin-top: 8px; }

.result-kicker { color: var(--muted); font-size: 0.92rem; }

.result-ton {
  font-family: var(--display);
  font-size: clamp(3.2rem, 6vw, 4.6rem);
  line-height: 0.9;
  margin: 8px 0;
}

.result-list { margin: 14px 0 0; padding-left: 18px; }

.result-list li + li { margin-top: 8px; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 16px;
}

.full { grid-column: 1 / -1; }

fieldset {
  border: 0;
  margin: 0;
  padding: 0;
  min-inline-size: 0;
}

legend { font-weight: 650; margin-bottom: 6px; padding: 0; }

label { display: block; font-weight: 650; margin-bottom: 6px; }

.hint { color: var(--muted); font-size: 0.9rem; font-weight: 400; }

input, select, textarea {
  width: 100%;
  border: 1px solid #c5ccd3;
  background: #fff;
  color: var(--ink);
  padding: 12px;
  font: inherit;
  border-radius: 0;
}

textarea { min-height: 140px; resize: vertical; }

[aria-invalid="true"] {
  border-color: var(--danger);
  background: var(--danger-bg);
}

.field-error {
  color: var(--danger);
  font-size: 0.9rem;
  margin-top: 6px;
}

.form-summary {
  border: 1px solid var(--danger);
  background: var(--danger-bg);
  padding: 12px 14px;
  margin-bottom: 16px;
}

.form-summary ul { margin: 8px 0 0; padding-left: 18px; }

.consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-weight: 400;
}

.consent input {
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.28rem;
  flex: none;
}

.hp {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-success {
  border-left: 4px solid var(--accent);
  background: #e7f0f2;
  padding: 18px 18px 20px;
}

.form-success h2 {
  font-family: var(--sans);
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.choice-row { display: flex; flex-wrap: wrap; gap: 8px; }

.choice {
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  padding: 8px 10px;
  background: #fff;
  font-weight: 500;
}

.choice input { width: auto; }

.missing {
  min-height: 70vh;
  display: grid;
  place-items: center;
  padding: 48px 20px;
  text-align: left;
}

.missing-card { max-width: 36rem; }

.link-row { display: flex; flex-wrap: wrap; gap: 10px 16px; margin-top: 18px; }

@media (max-width: 980px) {
  .scroll-hint { display: block; }
  .nav-toggle { display: inline-flex; }
  .header-cta { margin-left: auto; }
  .logo-tag { display: none; }
  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 8px 16px 16px;
    margin-left: 0;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; }
  .site-nav a { padding: 12px 4px; }
  .site-nav a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--accent); }
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-media { order: -1; padding: 16px 16px 8px; }
  .hero-copy { padding: 32px 20px 40px; }
  .hero h1 { max-width: none; }
  .facts { grid-template-columns: 1fr 1fr; }
  .facts li:nth-child(odd) { border-right: 1px solid var(--line); }
  .facts li:nth-child(1),
  .facts li:nth-child(2) { border-bottom: 1px solid var(--line); }
  .prop-grid, .industry-grid { grid-template-columns: 1fr 1fr; }
  .split, .product-intro, .about-grid, .contact-grid, .selector-grid, .footer-grid, .cta-band .wrap {
    grid-template-columns: 1fr;
  }
  .result-card { position: static; }
  .cta-band .wrap { align-items: start; }
  .series-list a { grid-template-columns: 64px 1fr; }
  .series-range { grid-column: 2; }
}

@media (max-width: 760px) {
  .wrap { width: min(var(--wrap), calc(100% - 32px)); }
  .utility-address { display: none; }
  .header-cta { padding: 0 12px; }
  .prop-grid, .industry-grid, .form-grid, .facts { grid-template-columns: 1fr; }
  .facts li { border-right: 0; border-bottom: 1px solid var(--line); }
  .section { padding: 56px 0; }
  .service { grid-template-columns: 56px 1fr; }
  .footer-base { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media print {
  .utility, .site-header, .site-footer, .cta-band, .hero-actions, .nav-toggle { display: none !important; }
  .hero { min-height: 0; color: #000; background: #fff; }
  body { font-size: 11pt; }
  a { color: #000; text-decoration: none; }
}