* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: #1f2937;
  background: #ffffff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.8;
}

a {
  color: #1d4ed8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  gap: 24px;
  font-size: 0.95rem;
}

.nav a {
  color: #374151;
}

.hero {
  background:
    linear-gradient(135deg, rgba(30, 64, 175, 0.08), rgba(14, 165, 233, 0.08)),
    #f8fafc;
}

.hero-inner {
  padding: 96px 0;
}

.eyebrow {
  color: #2563eb;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin: 0 0 16px;
}

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.25;
  margin: 0 0 24px;
  letter-spacing: 0.02em;
}

.lead {
  max-width: 760px;
  font-size: 1.15rem;
  color: #4b5563;
  margin: 0;
}

.section {
  padding: 80px 0;
}

.section-muted {
  background: #f9fafb;
}

h2 {
  font-size: 2rem;
  margin: 0 0 32px;
  line-height: 1.4;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.06);
}

.card h3 {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

.card p {
  margin: 0;
  color: #4b5563;
}

.profile {
  margin: 0;
  border-top: 1px solid #e5e7eb;
}

.profile div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid #e5e7eb;
}

.profile dt {
  font-weight: 700;
  color: #374151;
}

.profile dd {
  margin: 0;
}

.contact {
  text-align: center;
}

.contact p {
  margin: 0 0 28px;
}

.button {
  display: inline-block;
  background: #1d4ed8;
  color: #ffffff;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
}

.button:hover {
  text-decoration: none;
  background: #1e40af;
}

.site-footer {
  background: #111827;
  color: #d1d5db;
  padding: 28px 0;
  text-align: center;
}

/* Tablet */
@media (max-width: 1023px) {
  .container {
    width: min(920px, calc(100% - 40px));
  }

  .hero-inner {
    padding: 80px 0;
  }

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

/* Smartphone */
@media (max-width: 767px) {
  .container {
    width: calc(100% - 32px);
  }

  .header-inner {
    min-height: auto;
    padding: 18px 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    gap: 18px;
    font-size: 0.9rem;
  }

  .hero-inner {
    padding: 64px 0;
  }

  .section {
    padding: 56px 0;
  }

  h2 {
    font-size: 1.6rem;
  }

  .profile div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .button {
    width: 100%;
  }
}