/* --------------------------------------------------------------------------
   Elitecorp — professional landing (English)
   Semantic HTML; no framework; mobile-first
   -------------------------------------------------------------------------- */

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

:root {
  --color-bg: #fafaf9;
  --color-surface: #ffffff;
  --color-ink: #1c1917;
  --color-muted: #57534e;
  --color-faint: #a8a29e;
  --color-border: #e7e5e4;
  --color-accent: #0c4a6e;
  --color-accent-hover: #075985;
  --color-dark: #0f172a;
  --color-dark-muted: #94a3b8;
  --font-sans: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --font-display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(28, 25, 23, 0.04), 0 12px 40px rgba(28, 25, 23, 0.06);
  --max-content: 1120px;
  --max-narrow: 720px;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ink);
  background-color: var(--color-bg);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 1000;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: var(--space-sm);
}

.container {
  width: 100%;
  max-width: var(--max-content);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.narrow {
  max-width: var(--max-narrow);
}

/* ----- Header ----- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 249, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 4rem;
  flex-wrap: wrap;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo:hover,
.logo:focus-visible {
  color: var(--color-accent);
}

.logo:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav a {
  color: var(--color-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--color-accent);
}

.nav a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

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

.btn--header {
  color: var(--color-accent);
  background: transparent;
  border-color: var(--color-border);
}

.btn--header:hover {
  border-color: var(--color-accent);
  background: rgba(12, 74, 110, 0.06);
}

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

.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn--secondary {
  color: var(--color-ink);
  background: var(--color-surface);
  border-color: var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-muted);
}

@media (max-width: 768px) {
  .nav {
    order: 3;
    width: 100%;
  }

  .nav__list {
    justify-content: center;
  }

  .btn--header {
    margin-left: auto;
  }
}

/* ----- Hero ----- */

.hero {
  padding-block: var(--space-xl) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
}

.hero__grid {
  display: grid;
  gap: var(--space-lg);
  align-items: start;
}

@media (min-width: 900px) {
  .hero__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-xl);
    align-items: center;
  }
}

.eyebrow {
  margin: 0 0 var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.hero h1 {
  margin: 0 0 var(--space-md);
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, 3.25rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.hero__lead {
  margin: 0 0 var(--space-lg);
  font-size: 1.0625rem;
  color: var(--color-muted);
  max-width: 38rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.hero__panel {
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero__metric {
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.hero__metric:last-of-type {
  border-bottom: none;
  margin-bottom: var(--space-sm);
  padding-bottom: 0;
}

.hero__metric-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--color-accent);
}

.hero__metric-label {
  display: block;
  margin-top: var(--space-xs);
  font-size: 0.875rem;
  color: var(--color-muted);
}

.hero__note {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-faint);
}

/* ----- Sections ----- */

.section {
  padding-block: var(--space-xl);
}

.section--tint {
  background: #f5f5f4;
}

.section--dark {
  background: var(--color-dark);
  color: #e2e8f0;
}

.section__title {
  margin: 0 0 var(--space-md);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.section__title--on-dark {
  color: #f8fafc;
}

.section__lead {
  margin: 0 0 var(--space-md);
  font-size: 1.0625rem;
  color: var(--color-muted);
}

.section__text {
  margin: 0;
  font-size: 1rem;
  color: var(--color-muted);
}

.section--dark .section__lead,
.section--dark .section__text {
  color: var(--color-dark-muted);
}

.section__head {
  max-width: 40rem;
  margin-bottom: var(--space-lg);
}

.section__subtitle {
  margin: 0;
  font-size: 1rem;
  color: var(--color-muted);
}

/* ----- Cards ----- */

.cards {
  display: grid;
  gap: var(--space-md);
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 768px) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  border-color: #d6d3d1;
  box-shadow: var(--shadow);
}

.card__title {
  margin: 0 0 var(--space-sm);
  font-size: 1.0625rem;
  font-weight: 600;
}

.card__text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.65;
}

/* ----- Steps ----- */

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 700px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
}

.steps__item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.steps__num {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #64748b;
}

.steps__title {
  margin: 0 0 var(--space-xs);
  font-size: 1rem;
  font-weight: 600;
  color: #f1f5f9;
}

.steps__text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-dark-muted);
  line-height: 1.65;
}

/* ----- Contact ----- */

.contact {
  display: grid;
  gap: var(--space-lg);
  align-items: start;
}

@media (min-width: 800px) {
  .contact {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

.contact__intro .section__lead {
  margin-bottom: 0;
}

.contact__card {
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.contact__dl {
  margin: 0;
}

.contact__row {
  margin-bottom: var(--space-md);
}

.contact__row:last-child {
  margin-bottom: 0;
}

.contact__row dt {
  margin: 0 0 0.25rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-faint);
}

.contact__row dd {
  margin: 0;
  font-size: 1rem;
  color: var(--color-ink);
}

.contact__row a {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: none;
}

.contact__row a:hover,
.contact__row a:focus-visible {
  text-decoration: underline;
}

/* ----- Footer ----- */

.site-footer {
  padding-block: var(--space-lg);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  text-align: center;
}

@media (min-width: 600px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: start;
  }
}

.site-footer__brand {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: var(--color-ink);
}

.site-footer__legal {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-faint);
}