:root {
  --bg: #f3f4f6;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #334155;
  --line: #d1d5db;
  --blue: #1d4ed8;
  --blue-dark: #1e40af;
  --focus: rgba(29, 78, 216, 0.25);
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a {
  color: var(--blue);
}

.container {
  width: min(1120px, 100% - 2rem);
  margin: 0 auto;
}

.utility-bar {
  background: #e2e8f0;
  border-bottom: 1px solid #cbd5e1;
}

.utility-inner {
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
}

.utility-label {
  font-weight: 700;
  color: #1e293b;
}

.utility-control {
  min-height: 44px;
  min-width: 150px;
  border: 1px solid #94a3b8;
  border-radius: var(--radius);
  padding: 0 0.75rem;
  background: #fff;
  color: #0f172a;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid #e5e7eb;
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.5rem 0;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.main-nav > a {
  text-decoration: none;
  color: #1e293b;
  font-weight: 700;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.btn {
  min-height: 44px;
  border-radius: var(--radius);
  padding: 0 1rem;
  font-weight: 700;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--blue);
  color: #fff !important;
}

.btn-primary:hover {
  background: var(--blue-dark);
}

.btn-outline {
  border-color: #94a3b8;
  background: #fff;
}

.hero {
  background: linear-gradient(180deg, #eff6ff 0%, #f8fafc 100%);
  border-bottom: 1px solid #dbeafe;
}

.hero-inner {
  padding: 2.5rem 0;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.8rem, 5vw, 2.7rem);
  line-height: 1.2;
}

.hero p {
  margin: 0.9rem 0 0;
  color: var(--muted);
  max-width: 70ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.cta-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  border: 1px solid #93c5fd;
  border-radius: var(--radius);
  padding: 0 1rem;
  background: #fff;
  font-weight: 700;
}

.services-section {
  padding: 2rem 0 2.4rem;
}

.services-section h2 {
  margin: 0 0 0.8rem;
  font-size: 1.45rem;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.tab-btn {
  min-height: 44px;
  padding: 0 1rem;
  border-radius: 999px;
  border: 1px solid #94a3b8;
  background: #fff;
  font-weight: 700;
  cursor: pointer;
}

.tab-btn.active {
  border-color: var(--blue);
  background: #dbeafe;
  color: #0b3aa8;
}

.services-group {
  display: none;
}

.services-group.active {
  display: block;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.8rem;
}

.service-card {
  min-height: 130px;
  border-radius: 12px;
  border: 1px solid #cbd5e1;
  background: #fff;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
  color: #0f172a;
  text-decoration: none;
  padding: 0.8rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
}

.service-title {
  font-size: 0.98rem;
  line-height: 1.25;
}

.service-desc {
  color: #334155;
  font-size: 0.88rem;
  line-height: 1.4;
}

.icon {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #dbeafe;
  border: 1px solid #93c5fd;
  font-size: 1.1rem;
}

.site-footer {
  background: #111827;
  color: #e5e7eb;
  padding: 1.8rem 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.site-footer h3 {
  margin: 0 0 0.45rem;
  color: #fff;
}

.site-footer p {
  margin: 0.25rem 0;
}

button:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

@media (max-width: 860px) {
  .header-inner {
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .utility-inner {
    align-items: center;
    flex-wrap: wrap;
  }

  .utility-control {
    min-width: 140px;
  }

  .main-nav {
    width: 100%;
  }

  .main-nav > a {
    flex: 1 1 auto;
    justify-content: center;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}