:root {
  --navy: #071e42;
  --blue: #1682d4;
  --blue-dark: #0d69b3;
  --orange: #f68b27;
  --orange-dark: #df7414;
  --ink: #14233a;
  --muted: #5d6979;
  --line: #e2e9f0;
  --white: #fff;
  --container: 1320px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }

.site-header { background: #fff; border-bottom: 1px solid var(--line); }
.header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--navy); font-size: 1.27rem; font-weight: 780; letter-spacing: -.025em; text-decoration: none; }
.brand strong { color: var(--blue); }
.brand-mark { display: grid; place-items: center; width: 32px; height: 32px; border: 3px solid var(--blue); border-radius: 50%; color: var(--blue); font-weight: 900; transform: rotate(-8deg); }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 56px; padding: 15px 28px; border-radius: 8px; color: #fff; font-weight: 780; line-height: 1.2; text-decoration: none; transition: transform .18s ease, background .18s ease, box-shadow .18s ease; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible { outline: 3px solid rgba(22,130,212,.3); outline-offset: 3px; }
.button-small { min-height: 46px; padding: 12px 22px; background: var(--blue); }
.button-primary { background: var(--blue); box-shadow: 0 13px 28px rgba(22,130,212,.22); }
.button-primary:hover, .button-small:hover { background: var(--blue-dark); }
.button-orange { background: var(--orange); box-shadow: 0 13px 28px rgba(246,139,39,.2); }
.button-orange:hover { background: var(--orange-dark); }

.hero { padding: 72px 0 82px; }
.hero-grid { display: grid; grid-template-columns: .94fr 1.06fr; gap: 68px; align-items: center; }
.hero h1 { margin: 0 0 24px; max-width: 680px; color: var(--navy); font-size: clamp(3.3rem, 5.2vw, 5.25rem); line-height: 1.05; letter-spacing: -.055em; }
.hero-lead { max-width: 650px; margin: 0 0 27px; color: #3d4b5e; font-size: clamp(1.18rem, 2vw, 1.48rem); line-height: 1.5; }
.check-list { display: grid; gap: 13px; margin: 0 0 32px; padding: 0; list-style: none; font-size: 1.13rem; font-weight: 720; }
.check-list li { position: relative; padding-left: 40px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; display: grid; place-items: center; width: 27px; height: 27px; border-radius: 50%; color: #fff; background: var(--blue); font-size: .92rem; }
.availability { margin: 14px 0 0; color: var(--muted); font-size: .96rem; }
.hero-media { margin: 0; overflow: hidden; border-radius: 16px; background: #f4f7fa; box-shadow: 0 25px 58px rgba(7,30,66,.14); }
.hero-media img { width: 100%; height: auto; aspect-ratio: 1/1; object-fit: cover; }

.control-section { padding: 88px 0; border-top: 1px solid var(--line); }
.control-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 76px; align-items: center; }
.control-media { margin: 0; overflow: hidden; border-radius: 14px; background: #f5f7f9; }
.control-media img { width: 100%; height: auto; aspect-ratio: 1/1; object-fit: cover; }
.control-copy h2 { margin: 0 0 24px; color: var(--navy); font-size: clamp(2.8rem, 4.8vw, 4.65rem); line-height: 1.03; letter-spacing: -.055em; }
.control-copy h2 strong { color: var(--blue); }
.control-lead { max-width: 630px; margin: 0 0 25px; color: #344258; font-size: 1.16rem; }
.feature-list { display: grid; margin: 0 0 30px; padding: 0; list-style: none; }
.feature-list li { display: grid; grid-template-columns: 56px 1fr; gap: 18px; align-items: center; min-height: 69px; border-bottom: 1px solid var(--line); color: var(--navy); font-size: 1.12rem; }
.feature-list li:first-child { border-top: 1px solid var(--line); }
.feature-list span { display: grid; place-items: center; width: 43px; height: 43px; border: 2px solid var(--blue); border-radius: 50%; color: var(--blue); font-weight: 800; }

.site-footer { padding: 28px 0; background: var(--navy); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand-footer { color: #fff; }
.site-footer a { color: #58b3f4; }

@media (max-width: 860px) {
  .container { width: min(var(--container), calc(100% - 30px)); }
  .header-inner { min-height: 68px; }
  .brand { font-size: 1.02rem; }
  .brand-mark { width: 27px; height: 27px; }
  .button-small { min-height: 40px; padding: 9px 14px; font-size: .88rem; }
  .hero { padding: 48px 0 62px; }
  .hero-grid, .control-grid { grid-template-columns: 1fr; gap: 38px; }
  .hero h1 { font-size: clamp(2.65rem, 11.5vw, 4.4rem); }
  .control-section { padding: 64px 0; }
  .control-copy h2 { font-size: clamp(2.5rem, 10vw, 4rem); }
}

@media (max-width: 480px) {
  .header-inner .button-small { display: none; }
  .hero-copy .button, .control-copy .button { width: 100%; }
  .footer-inner { flex-direction: column; gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}