:root {
  --ink: #0a3442;
  --muted: #4a7686;
  --teal: #0ea5b7;
  --sea: #0a6b8a;
  --coral: #ff7a59;
  --sun: #ffd166;
  --paper: #e9fbff;
  --line: rgba(10, 107, 138, .17);
  --glass: rgba(255, 255, 255, .72);
  --grad: linear-gradient(115deg, #087386, #075f70 46%, #a63f2d);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(900px 620px at 0 -10%, #c9f6ff 0%, transparent 58%),
    radial-gradient(800px 600px at 105% 5%, #ffe1cf 0%, transparent 54%),
    linear-gradient(180deg, #eefcff, var(--paper));
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.wrap { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }
.skip { position: fixed; left: 12px; top: -80px; z-index: 100; padding: 10px 14px; background: #fff; border-radius: 8px; }
.skip:focus { top: 12px; }
.site-head { position: sticky; top: 0; z-index: 20; padding: 12px 0; }
.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 58px;
  padding: 10px 14px 10px 18px;
  border: 1px solid rgba(255, 255, 255, .82);
  border-radius: 16px;
  background: rgba(255, 255, 255, .76);
  box-shadow: 0 8px 28px rgba(14, 120, 150, .1);
  backdrop-filter: blur(16px);
}
.brand { margin-right: auto; font-weight: 900; font-size: 1.1rem; text-decoration: none; }
.nav-link { color: var(--muted); font-size: .9rem; font-weight: 700; text-decoration: none; }
.nav-link:hover { color: var(--ink); }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 0;
  border-radius: 12px;
  color: #fff;
  background: var(--grad);
  box-shadow: 0 10px 26px rgba(14, 165, 183, .28);
  font: inherit;
  font-weight: 850;
  text-decoration: none;
}
.button.secondary { color: var(--ink); background: #fff; box-shadow: none; border: 1px solid var(--line); }
.breadcrumbs { padding-top: 34px; color: var(--muted); font-size: .86rem; }
.breadcrumbs a { text-underline-offset: 3px; }
.hero { padding: 48px 0 72px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr); gap: 54px; align-items: center; }
.eyebrow { color: var(--teal); font-size: .78rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; letter-spacing: 0; }
h1 { max-width: 15ch; margin-bottom: 20px; font-size: clamp(2.45rem, 6vw, 4.8rem); }
h2 { margin-bottom: 16px; font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { margin-bottom: 9px; font-size: 1.18rem; }
.lede { max-width: 58ch; color: var(--muted); font-size: 1.12rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero-photo { overflow: hidden; aspect-ratio: 4 / 5; border: 10px solid rgba(255, 255, 255, .72); border-radius: 28px; box-shadow: 0 22px 56px rgba(14, 120, 150, .2); }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.fact { padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255, 255, 255, .68); }
.fact strong { display: block; color: var(--sea); font-size: 1.18rem; }
.fact span { color: var(--muted); font-size: .84rem; }
.section { padding: 70px 0; }
.section.tint { border-block: 1px solid var(--line); background: rgba(255, 255, 255, .42); }
.section-head { max-width: 720px; margin-bottom: 34px; }
.section-head p { color: var(--muted); font-size: 1.03rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { padding: 24px; border: 1px solid rgba(255, 255, 255, .85); border-radius: 18px; background: var(--glass); box-shadow: 0 10px 32px rgba(14, 120, 150, .09); }
.card p { margin-bottom: 0; color: var(--muted); }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 48px; align-items: start; }
.prose { max-width: 720px; }
.prose h2 { margin-top: 48px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 30px; }
.prose p, .prose li { color: #315d6b; }
.prose li + li { margin-top: 9px; }
.aside { position: sticky; top: 96px; padding: 24px; border-radius: 18px; color: #fff; background: var(--grad); }
.aside p { color: rgba(255, 255, 255, .9); }
.aside .button { width: 100%; color: var(--sea); background: #fff; box-shadow: none; }
.compare { width: 100%; border-collapse: collapse; overflow: hidden; border-radius: 14px; background: rgba(255, 255, 255, .72); }
.compare th, .compare td { padding: 14px; border-bottom: 1px solid var(--line); text-align: left; }
.compare th { color: var(--sea); font-size: .82rem; text-transform: uppercase; }
.faq { display: grid; gap: 12px; }
.faq article { padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255, 255, 255, .68); }
.faq p { margin-bottom: 0; color: var(--muted); }
.related { display: flex; gap: 14px; flex-wrap: wrap; }
.related a { padding: 14px 18px; border: 1px solid var(--line); border-radius: 12px; background: #fff; font-weight: 800; text-decoration: none; }
.source { padding: 16px 18px; border-left: 4px solid var(--teal); background: rgba(255, 255, 255, .7); color: var(--muted); }
.cta-band { margin: 70px auto 0; padding: 42px 24px; border-radius: 24px; color: #fff; background: var(--grad); text-align: center; }
.cta-band p { margin: 8px auto 22px; max-width: 52ch; color: rgba(255, 255, 255, .9); }
.cta-band .button { color: var(--sea); background: #fff; box-shadow: none; }
.site-foot { margin-top: 72px; padding: 34px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.foot-row { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.foot-links { display: flex; gap: 16px; flex-wrap: wrap; }
@media (max-width: 800px) {
  .hero-grid, .content-grid { grid-template-columns: 1fr; }
  .hero-photo { order: -1; max-width: 420px; }
  .grid-3 { grid-template-columns: 1fr; }
  .aside { position: static; }
  .nav-link { display: none; }
}
@media (max-width: 560px) {
  .wrap { width: min(100% - 28px, 1080px); }
  .hero { padding: 26px 0 50px; }
  .hero-grid { gap: 28px; }
  h1 { font-size: 2.35rem; }
  .facts { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .section { padding: 52px 0; }
  .compare { font-size: .85rem; }
  .compare th, .compare td { padding: 10px 8px; }
}