:root {
  --bg: #f3f8fc;
  --bg-soft: #edf5fb;
  --surface: #ffffff;
  --surface-soft: #f7fbff;
  --text: #123043;
  --muted: #5d7688;
  --accent: #2f7ea7;
  --accent-soft: #d8ecf8;
  --border: #d8e7f2;
  --shadow: 0 14px 36px rgba(15, 49, 73, 0.1);
  --radius: 16px;
  --max: 1040px;
  --font: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(
      1200px 700px at 0% -10%,
      rgba(47, 126, 167, 0.12),
      transparent 60%
    ),
    radial-gradient(
      1200px 900px at 90% 0%,
      rgba(138, 188, 219, 0.16),
      transparent 58%
    ),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  color: var(--text);
  line-height: 1.65;
}
a {
  color: var(--accent);
}
a:hover {
  color: #21678b;
}
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 18px;
}
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(120%) blur(8px);
  background: rgba(247, 252, 255, 0.9);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
}
.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  text-decoration: none;
}
.brand__text {
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--text);
}
.nav {
  display: flex;
  gap: 8px;
  align-items: center;
}
.nav__link {
  padding: 8px 10px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
  border: 1px solid transparent;
}
.nav__link:hover {
  color: var(--text);
  border-color: var(--border);
  background: #ffffff;
}
.nav__link.is-active {
  color: var(--text);
  border-color: #b7d6e8;
  background: #eaf5fc;
}
.nav__toggle {
  display: none;
}
.hero {
  padding: 48px 0 10px;
}
.kicker {
  color: var(--muted);
  font-size: 14px;
}
h1 {
  margin: 10px 0 8px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.3px;
}
.lead {
  color: #345469;
  font-size: 18px;
  max-width: 70ch;
}
.grid {
  display: grid;
  gap: 16px;
}
.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.card {
  background: linear-gradient(
    180deg,
    var(--surface) 0%,
    var(--surface-soft) 100%
  );
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.card h2 {
  margin: 0 0 6px;
  font-size: 18px;
}
.card p {
  margin: 0;
  color: var(--muted);
}
.badge {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 6px 10px;
  border: 1px solid #bedaed;
  background: var(--accent-soft);
  border-radius: 999px;
  color: #255b7a;
  font-size: 13px;
  font-weight: 600;
}
.cta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  text-decoration: none;
  font-weight: 650;
  transition:
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease;
}
.btn.primary {
  border-color: #4f95bb;
  background: var(--accent);
  color: #fff;
}
.btn.primary:hover {
  background: #266f97;
  border-color: #266f97;
  color: #fff;
}
.btn.ghost {
  color: var(--text);
  background: #ffffff;
}
.btn.ghost:hover {
  background: #edf5fa;
  border-color: #c5dceb;
}
.section {
  padding: 26px 0;
}
.list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}
.muted {
  color: var(--muted);
}
.tiny {
  font-size: 12px;
}
.hr {
  height: 1px;
  background: var(--border);
  margin: 18px 0;
}
.faq {
  margin: 0;
  padding: 0;
  list-style: none;
}
.faq li {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}
.faq button {
  width: 100%;
  text-align: left;
  background: none;
  color: var(--text);
  border: 0;
  padding: 14px 14px;
  font-weight: 650;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
}
.faq .answer {
  padding: 0 14px 14px;
  color: var(--muted);
  display: none;
}
.faq li.is-open .answer {
  display: block;
}
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 20px 56px;
  margin-top: 36px;
  background: rgba(236, 246, 253, 0.7);
}
.footer__grid {
  display: grid;
  gap: 22px;
  grid-template-columns: 2fr 1fr 1fr;
}
.footer__grid > div:first-child {
  padding-bottom: 14px;
}
.footer a {
  color: #3f6680;
  text-decoration: none;
}
.footer a:hover {
  color: var(--text);
  text-decoration: underline;
}
.notice {
  border-left: 4px solid #72a9c8;
  padding: 10px 12px;
  background: #e9f4fb;
  border-radius: 12px;
  color: #2a5670;
}
@media (max-width: 860px) {
  .grid.cols-3 {
    grid-template-columns: 1fr;
  }
  .grid.cols-2 {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr;
  }
  .nav {
    display: none;
  }
  .nav.is-open {
    display: flex;
    position: absolute;
    top: 58px;
    right: 18px;
    flex-direction: column;
    padding: 10px;
    background: #f8fcff;
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
  }
  .nav__toggle {
    display: inline-flex;
    padding: 8px 10px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
  }
}