:root {
    --blue-600: #5C93D4;
  --blue-700: #4A79B3;
  --blue-900: #16233F;
  --navy-800: #1C2B4D;
  --cream: #FEFEFC;
  --gold: #E4D173;
  --lime: #E4D173;
  --ink: #14181F;
  --ink-soft: #4A5063;
  --ink-faint: #7A8095;
  --line: #E3E6EE;
  --surface: #F5F5F5;
  --white: #FFFFFF;

    --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.92rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  --step-1: clamp(1.2rem, 1.12rem + 0.4vw, 1.4rem);
  --step-2: clamp(1.5rem, 1.35rem + 0.75vw, 1.9rem);
  --step-3: clamp(1.95rem, 1.7rem + 1.25vw, 2.6rem);
  --step-4: clamp(2.6rem, 2.15rem + 2.25vw, 3.9rem);

    --container: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius-sm: 3px;
  --radius-md: 6px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
  color: var(--blue-900);
}
h1 { font-size: var(--step-4); font-weight: 400; }
h2 { font-size: var(--step-3); font-weight: 400; }
h3 { font-size: var(--step-2); font-weight: 500; }
h4 { font-size: var(--step-1); font-weight: 600; font-family: 'Archivo', sans-serif; }

p { margin: 0 0 1em; max-width: 62ch; color: var(--ink-soft); }
a { color: var(--blue-700); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 2px;
}
img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(254, 254, 252, 0.92);
  backdrop-filter: none;
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
  gap: 1.5rem;
}
.logo-row { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; }
.logo-mark { height: 30px; width: auto; display: block; }
.wordmark {
  font-family: 'Archivo', sans-serif;
  font-size: 1.25rem;
  line-height: 1;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.chelko { font-weight: 800; color: var(--blue-900); }
.argentina { font-weight: 700; font-style: italic; color: var(--blue-600); }

.main-nav { display: flex; align-items: center; gap: 1.9rem; }
.main-nav ul { list-style: none; display: flex; gap: 1.9rem; margin: 0; padding: 0; }
.main-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.3em 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}
.main-nav a:hover, .main-nav a[aria-current="page"] { border-color: var(--blue-600); color: var(--blue-700); }

.lang-switch { display: flex; gap: 0.15rem; font-size: var(--step--1); font-weight: 600; }
.lang-switch a {
  padding: 0.25em 0.5em;
  color: var(--ink-faint);
  text-decoration: none;
  border-radius: var(--radius-sm);
}
.lang-switch a[aria-current="true"] { color: var(--blue-900); background: var(--surface); }

.nav-toggle { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.75em 1.4em;
  border-radius: var(--radius-sm);
  font-size: var(--step--1);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.18s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue-600); color: var(--white); }
.btn-primary:hover { background: var(--blue-700); }
.btn-accent { background: var(--gold); color: var(--blue-900); }
.btn-accent:hover { background: #D8C15E; }
.btn-outline { background: transparent; border-color: var(--blue-900); color: var(--blue-900); }
.btn-outline:hover { background: var(--blue-900); color: var(--white); }
.btn-ghost { background: transparent; color: var(--blue-900); padding-left: 0; padding-right: 0; }

.hero {
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(3rem, 7vw, 6rem);
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
}
.eyebrow {
  font-size: var(--step--1);
  color: var(--blue-700);
  font-weight: 600;
  margin: 0 0 1rem;
}
.hero h1 { max-width: 14ch; }
.hero-lede { font-size: var(--step-1); color: var(--ink-soft); max-width: 46ch; }
.hero-cta-row { display: flex; gap: 0.9rem; flex-wrap: wrap; margin-top: 1.6rem; }

.hero-panel {
  background: var(--blue-900);
  color: var(--cream);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  position: relative;
  overflow: hidden;
}
.hero-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--navy-800) 1px, transparent 1px),
    linear-gradient(90deg, var(--navy-800) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.35;
}
.hero-panel-inner { position: relative; }
.hero-panel .field-label {
  font-size: var(--step--1);
  color: #A9B6D6;
  text-transform: none;
  margin: 0;
}
.hero-panel .field-value {
  font-family: 'Fraunces', serif;
  font-size: var(--step-1);
  color: var(--cream);
  margin: 0.1rem 0 1.1rem;
}
.hero-panel hr { border: none; border-top: 1px solid #2B3B60; margin: 1.1rem 0; }

.reveal { opacity: 0; transform: translateY(10px); animation: reveal 0.6s var(--ease) forwards; }
@keyframes reveal { to { opacity: 1; transform: translateY(0); } }

html { background: var(--cream); }
body.has-bg-video { background: transparent; }
.hero-bg-video {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  object-position: center;
  z-index: -1;
  pointer-events: none;
}
.hero-bg-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(254, 254, 252, 0.2);
  z-index: -1;
  pointer-events: none;
}
@media (prefers-reduced-motion: reduce) {
  .hero-bg-video { display: none; }
  .hero-bg-overlay { background: var(--cream); }
}

section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 2rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.5rem;
}
.section-head h2 { margin: 0; max-width: 16ch; }
.section-head .section-note { max-width: 34ch; margin: 0; }
.section-alt { background: var(--surface); }
.section-dark { background: var(--blue-900); color: var(--cream); }
.section-dark h2, .section-dark h3 { color: var(--cream); }
.section-dark p { color: #B9C4DE; }

.cat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.cat-card {
  background: var(--cream);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  border-top: 4px solid var(--blue-600);
}
.cat-card .cat-index { font-size: var(--step--1); color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.cat-card h3 { margin-bottom: 0.3rem; }
.cat-card a { font-size: var(--step--1); font-weight: 600; text-decoration: none; }
.cat-card a::after { content: " \2192"; }

.diff-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.diff-row {
  display: grid;
  grid-template-columns: minmax(6.5rem, 9rem) 1fr 2fr;
  gap: 1.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.diff-row .diff-num {
  font-family: 'Fraunces', serif;
  font-size: var(--step-0);
  color: var(--blue-600);
  overflow-wrap: break-word;
  hyphens: auto;
}
.diff-row h4 { margin: 0; }
.diff-row p { margin: 0; }

.placeholder {
  border: 1px dashed var(--ink-faint);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.1rem;
  font-size: var(--step--1);
  color: var(--ink-faint);
  background: var(--surface);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}
.contact-info dl { margin: 0; }
.contact-info dt { font-size: var(--step--1); color: var(--ink-faint); margin-top: 1.4rem; }
.contact-info dt:first-child { margin-top: 0; }
.contact-info dd { margin: 0.2rem 0 0; font-size: var(--step-1); font-family: 'Fraunces', serif; color: var(--blue-900); }
.contact-info dd a { color: inherit; text-decoration: none; }
.contact-info dd a:hover { text-decoration: underline; }

.form-group { margin-bottom: 1.2rem; }
label { display: block; font-size: var(--step--1); font-weight: 600; margin-bottom: 0.4rem; color: var(--blue-900); }
input, textarea, select {
  width: 100%;
  font: inherit;
  padding: 0.75em 0.9em;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--ink);
}
textarea { resize: vertical; min-height: 8rem; }
.form-note { font-size: var(--step--1); color: var(--ink-faint); margin-top: 0.4rem; }
.form-status { font-size: var(--step--1); margin-top: 1rem; padding: 0.8em 1em; border-radius: var(--radius-sm); display: none; }
.form-status.is-visible { display: block; }
.form-status.is-success { background: #E9F3E4; color: #2C5F1F; }
.form-status.is-error { background: #FBE8E4; color: #8A2C1D; }

.map-toggle-wrap { margin-top: 1.5rem; }
.map-frame { margin-top: 1rem; border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; }
.map-frame iframe { width: 100%; height: 320px; border: 0; display: block; }

.site-footer { background: var(--blue-900); color: #B9C4DE; padding: 3.5rem 0 2rem; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid #2B3B60;
}
.site-footer h4 { color: var(--cream); font-size: var(--step--1); text-transform: none; margin-bottom: 0.9rem; }
.site-footer a { color: #B9C4DE; text-decoration: none; }
.site-footer a:hover { color: var(--cream); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-bottom { padding-top: 1.5rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: var(--step--1); }

.breadcrumbs { font-size: var(--step--1); color: var(--ink-faint); padding: 1rem 0 0; }
.breadcrumbs a { color: var(--ink-faint); text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }
.breadcrumbs ol { list-style: none; display: flex; gap: 0.4rem; margin: 0; padding: 0; flex-wrap: wrap; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: 0.4rem; color: var(--line); }

.wa-float {
  position: fixed;
  bottom: 1.4rem;
  right: 1.4rem;
  z-index: 60;
  background: var(--blue-900);
  color: var(--cream);
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 2px 10px rgba(20, 24, 31, 0.25);
  transition: transform 0.18s var(--ease);
}
.wa-float:hover { transform: scale(1.06); }
.wa-float svg { width: 1.5rem; height: 1.5rem; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--blue-900);
  color: var(--cream);
  padding: 0.8em 1.2em;
  z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.mt-0 { margin-top: 0; }
.text-center { text-align: center; }
.industries-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.industry-card { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 1.4rem; }
.industry-card h4 { margin-bottom: 0.4rem; }

.cat-banner {
  background: var(--blue-900);
  color: var(--cream);
}
.cat-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 2.2rem var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
}
.cat-banner h1 { color: var(--cream); margin: 0; }
.cat-banner .eyebrow { color: #A9C3EA; margin-bottom: 0.4rem; }
.cat-banner-back {
  color: var(--cream);
  text-decoration: none;
  font-size: var(--step--1);
  font-weight: 600;
  border-bottom: 1px solid #3E4F78;
  padding-bottom: 0.2em;
  white-space: nowrap;
  transition: border-color 0.18s var(--ease);
}
.cat-banner-back:hover { border-color: var(--gold); color: var(--gold); }

.cat-strip { height: 6px; background: linear-gradient(90deg, var(--blue-600), var(--gold)); }

.product-group { margin-bottom: 2.8rem; }
.product-group:last-child { margin-bottom: 0; }
.product-group h3 { border-bottom: 2px solid var(--blue-600); padding-bottom: 0.5rem; margin-bottom: 0; }

.product-table { width: 100%; border-collapse: collapse; margin-top: 0; }
.product-table thead th {
  text-align: left;
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
}
.product-table tbody td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: var(--ink-soft);
}
.product-table tbody tr:hover td { background: var(--surface); }
.product-table td.name {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  color: var(--blue-900);
  white-space: nowrap;
  width: 1%;
}
.product-table tbody tr:last-child td { border-bottom: none; }

.section-tight { padding-top: 0; }

@media (max-width: 640px) {
  .product-table td.name { white-space: normal; }
  .product-table, .product-table tbody, .product-table tr, .product-table td { display: block; width: 100%; }
  .product-table thead { display: none; }
  .product-table tbody tr { border-bottom: 1px solid var(--line); padding: 0.9rem 0; }
  .product-table tbody td { border-bottom: none; padding: 0.15rem 0; }
  .product-table td.name { padding-top: 0.4rem; }
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 3px;
}
.tile {
  position: relative;
  aspect-ratio: 4 / 3;
  display: block;
  overflow: hidden;
  text-decoration: none;
  isolation: isolate;
}
.tile-label {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 0.9rem 1rem;
  color: var(--white);
  font-weight: 600;
  font-size: var(--step--1);
  line-height: 1.25;
  background: linear-gradient(to top, rgba(0,0,0,0.32), transparent);
}
.tile-soon {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px dashed var(--ink-faint);
}
.tile-soon span { color: var(--ink-faint); font-size: var(--step--1); text-align: center; padding: 0 1rem; }
.tile:hover .tile-label { background: linear-gradient(to top, rgba(0,0,0,0.5), transparent); }
.tile:focus-visible { outline: 2px solid var(--blue-900); outline-offset: -2px; }

@media (max-width: 880px) {
  .tile-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .main-nav ul { display: none; }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.4rem;
    height: 2.4rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: none;
    cursor: pointer;
  }
  .main-nav.is-open ul {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--cream);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gutter) 1rem;
  }
  .main-nav.is-open ul a { display: block; padding: 0.7em 0; border-bottom: 1px solid var(--line); }
  .cat-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .diff-row { grid-template-columns: 1fr; gap: 0.3rem; }
  .diff-row .diff-num { font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.03em; color: var(--ink-faint); }
  .diff-row p { grid-column: 1 / -1; }
  .industries-grid { grid-template-columns: 1fr; }
}