:root {
  --background: #243746;
  --surface: #2F4252;
  --panels: #4E6A85;
  --text-primary: #F5F7F9;
  --text-secondary: #D7DCE2;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--text-primary);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header,
.site-footer,
main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--panels);
  background: var(--surface);
  color: var(--text-primary);
  font-size: 0.75rem;
  letter-spacing: 0;
  border-radius: 8px;
}

.brand-text {
  font-size: 1rem;
}

.site-nav,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.site-nav a:hover,
.site-footer a:hover,
.site-nav a:focus-visible,
.site-footer a:focus-visible {
  color: var(--text-primary);
  outline: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 32px;
  align-items: stretch;
  min-height: 620px;
  padding: 72px 0 56px;
}

.hero-content,
.hero-panel,
.section-panel,
.contact-section {
  border: 1px solid var(--panels);
  background: var(--surface);
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(32px, 6vw, 72px);
  border-radius: 8px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(3rem, 8vw, 6.7rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  max-width: 780px;
  margin-bottom: 0;
  font-size: clamp(2rem, 4.8vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.25;
}

.hero-intro {
  max-width: 650px;
  margin-bottom: 32px;
  color: var(--text-secondary);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid var(--panels);
  border-radius: 8px;
  font-weight: 700;
}

.button-primary {
  background: var(--panels);
  color: var(--text-primary);
}

.button-secondary {
  background: var(--background);
  color: var(--text-primary);
}

.button:hover,
.button:focus-visible,
.contact-link:hover,
.contact-link:focus-visible {
  background: var(--text-primary);
  color: var(--background);
  outline: none;
}

.hero-panel {
  position: relative;
  display: grid;
  min-height: 360px;
  place-items: center;
  overflow: hidden;
  border-radius: 8px;
}

.hero-panel::before,
.hero-panel::after {
  position: absolute;
  content: "";
  border: 1px solid var(--panels);
  border-radius: 8px;
}

.hero-panel::before {
  inset: 36px;
}

.hero-panel::after {
  inset: 72px;
  background: var(--background);
}

.value-lockup {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 10px;
  width: min(260px, calc(100% - 64px));
  padding: 24px;
  border: 1px solid var(--panels);
  background: var(--surface);
  border-radius: 8px;
  text-align: center;
  font-size: clamp(1.35rem, 4vw, 2.1rem);
  font-weight: 700;
  line-height: 1.15;
}

.value-lockup span {
  display: block;
}

.section {
  padding: 80px 0;
}

.section-heading {
  margin-bottom: 36px;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.section-panel {
  padding: clamp(28px, 5vw, 48px);
  border-radius: 8px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 260px;
  padding: 22px;
  border: 1px solid var(--panels);
  background: var(--background);
  border-radius: 8px;
}

.feature-number {
  display: block;
  margin-bottom: 48px;
  color: var(--text-secondary);
  font-weight: 700;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--text-secondary);
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  margin: 80px 0;
  padding: clamp(28px, 5vw, 48px);
  border-radius: 8px;
}

.contact-section p {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--text-secondary);
}

.contact-link {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid var(--panels);
  background: var(--background);
  color: var(--text-primary);
  border-radius: 8px;
  font-weight: 700;
  word-break: break-word;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--panels);
  color: var(--text-secondary);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 36px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-section {
    grid-template-columns: 1fr;
  }

  .contact-link {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .site-header,
  .site-footer,
  main {
    width: min(100% - 28px, 1120px);
  }

  .site-nav,
  .site-footer,
  .site-footer nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    gap: 10px;
  }

  .hero {
    gap: 18px;
    padding-bottom: 36px;
  }

  .hero-content {
    padding: 28px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-panel {
    min-height: 280px;
  }

  .hero-panel::before {
    inset: 24px;
  }

  .hero-panel::after {
    inset: 50px;
  }

  .value-lockup {
    width: min(230px, calc(100% - 48px));
  }

  .section {
    padding: 56px 0;
  }

  .two-column,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: auto;
  }

  .feature-number {
    margin-bottom: 28px;
  }

  .contact-section {
    margin: 56px 0;
  }
}