:root {
  --container: 1200px;
  --gap: 24px;
  --primary: #0ea5e9;
  --text: #111827;
  --muted: #6b7280;
  --bg: #ffffff;
}

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gap) * 2);
  padding-left: var(--gap);
  padding-right: var(--gap);
  margin-left: auto;
  margin-right: auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: var(--bg);
  border-bottom: 1px solid #e5e7eb;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.branding .logo {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 20px;
}

.nav-toggle {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  padding: 0;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
  position: relative;
}
.nav-toggle span + span { margin-top: 5px; }

.site-nav {
  display: none;
}
.site-nav .menu {
  list-style: none;
  margin: 0;
  padding: 16px 0;
  display: grid;
  gap: 8px;
}
.site-nav .menu a {
  color: var(--text);
  text-decoration: none;
  padding: 8px 0;
}

.site-nav.open {
  display: block;
}

@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .site-nav {
    display: block;
  }
  .site-nav .menu {
    display: flex;
    gap: 24px;
    padding: 0;
  }
}

.section {
  padding: 64px 0;
}

.hero {
  background: linear-gradient(180deg, #f0f9ff 0%, #ffffff 100%);
}
.hero .hero-content {
  max-width: 680px;
}
.hero .btn {
  margin-top: 16px;
}

.grid-2 {
  display: grid;
  gap: 24px;
}
@media (min-width: 960px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.cards {
  display: grid;
  gap: 24px;
}
@media (min-width: 640px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}
.card {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 20px;
}

.btn {
  display: inline-block;
  background: var(--primary);
  color: #ffffff;
  text-decoration: none;
  padding: 12px 18px;
  border-radius: 8px;
}

.site-footer {
 padding: 40px 0;
    background: #f7fbff;
    color: #000000;
}
.footer-inner {
  display: grid;
  gap: 16px;
}
 .footer-copy {
  text-align: center;
}
@media (min-width: 960px) {
  .footer-inner {
    grid-template-columns: 1fr auto auto;
    align-items: center;
  }
}
.footer-nav .menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 16px;
}
.footer-nav a {
  color: #cbd5e1;
  text-decoration: none;
}