:root { color-scheme: light; --ink: #192a36; --muted: #536570; --blue: #276b95; --paper: #faf9f6; --line: #dce3e6; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif; font-size: 1rem; line-height: 1.9; }
a { color: var(--blue); text-underline-offset: .25em; }
a:focus-visible { outline: 3px solid var(--blue); outline-offset: 6px; }
img { display: block; max-width: 100%; height: auto; }
.wrap { width: min(1100px, calc(100% - 64px)); margin-inline: auto; }
.skip { position: absolute; top: -100px; left: 1rem; padding: .5rem 1rem; background: white; z-index: 2; }
.skip:focus { top: 1rem; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding-block: 26px; border-bottom: 1px solid var(--line); }
.brand { display: flex; gap: 12px; align-items: center; color: var(--ink); font-size: 1.125rem; font-weight: 700; text-decoration: none; }
.brand img { width: 44px; border-radius: 11px; }
nav { display: flex; gap: 28px; }
nav a { font-size: .9375rem; color: var(--ink); text-decoration: none; }
nav a:hover { text-decoration: underline; }
.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center; padding-block: 60px 76px; }
.eyebrow { color: var(--blue); font-size: .875rem; font-weight: 700; letter-spacing: .12em; margin: 0 0 22px; }
h1 { font-size: clamp(2.8rem, 5.4vw, 4.5rem); line-height: 1.38; letter-spacing: -.045em; margin: 0 0 26px; }
h1 span { color: var(--blue); }
.intro { color: var(--muted); font-size: 1.0625rem; margin-bottom: 30px; }
.button { display: inline-flex; gap: 24px; align-items: center; padding: 13px 23px; border-radius: 10px; background: var(--blue); color: #fff; text-decoration: none; font-weight: 600; }
.button:hover { background: #1d5478; }
.compatibility { color: var(--muted); font-size: .875rem; margin-top: 18px; }
.hero-image { margin: 0; justify-self: center; width: min(100%, 330px); border-radius: 22px; overflow: hidden; box-shadow: 0 20px 50px #192a3614; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; padding-block: 0 72px; }
.features article { border-top: 1px solid var(--line); padding-top: 22px; }
.number { margin: 0 0 14px; color: var(--blue); font-size: .875rem; font-weight: 700; }
.features h2 { font-size: 1.25rem; margin: 0 0 12px; }
.features p:last-child, .steps p, .support p, .steps-layout > div > p:last-child { color: var(--muted); }
.how-to { background: #edf3f6; padding-block: 76px; }
.steps-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 70px; }
.section-title { font-size: clamp(1.8rem, 3vw, 2.5rem); line-height: 1.55; margin: 0 0 20px; letter-spacing: -.025em; }
.steps { list-style: none; padding: 0; margin: 0; counter-reset: step; }
.steps li { position: relative; padding-left: 54px; margin-bottom: 25px; counter-increment: step; }
.steps li:last-child { margin-bottom: 0; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 34px; height: 34px; text-align: center; line-height: 34px; background: white; border-radius: 50%; color: var(--blue); font-weight: 700; }
h3 { font-size: 1.125rem; margin: 0 0 8px; }
.steps p { margin: 0; }
.support { display: grid; grid-template-columns: 1fr 1.2fr; gap: 70px; padding-block: 76px; }
.email { font-size: 1.0625rem; overflow-wrap: anywhere; }
.notes { border-left: 1px solid var(--line); padding-left: 34px; }
.notes h3:not(:first-child) { margin-top: 28px; }
.notes p { margin: 0; font-size: .9375rem; }
footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; border-top: 1px solid var(--line); padding-block: 24px; color: var(--muted); font-size: .875rem; }
@media (max-width: 760px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { padding-block: 18px; flex-wrap: wrap; }
  nav { gap: 20px; }
  .hero { grid-template-columns: 1fr; gap: 34px; padding-block: 44px; }
  h1 { font-size: clamp(2.6rem, 10vw, 4rem); }
  .hero-image { width: min(100%, 310px); }
  .features { grid-template-columns: 1fr; gap: 24px; padding-block: 8px 44px; }
  .features p:last-child { margin-bottom: 0; }
  .steps-layout, .support { grid-template-columns: 1fr; gap: 28px; }
  .how-to, .support { padding-block: 44px; }
  .notes { border-left: 0; border-top: 1px solid var(--line); padding: 28px 0 0; }
  .desktop-break { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }