:root {
  --ink: #0b2532;
  --muted: #516875;
  --navy: #071d29;
  --teal: #27b9bd;
  --teal-dark: #087d83;
  --pale: #edfafa;
  --line: #d8e6e9;
  --white: #fff;
  --shadow: 0 22px 60px rgba(7, 29, 41, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--teal-dark); text-underline-offset: .18em; }
a:focus-visible { outline: 3px solid #f1b93a; outline-offset: 4px; }
.shell { width: min(1120px, calc(100% - 2.5rem)); margin-inline: auto; }
.narrow { max-width: 760px; }
.skip-link { position: absolute; left: 1rem; top: -5rem; z-index: 20; padding: .7rem 1rem; background: var(--white); }
.skip-link:focus { top: 1rem; }

.site-header { position: sticky; top: 0; z-index: 10; background: rgba(7, 29, 41, .96); border-bottom: 1px solid rgba(255,255,255,.08); }
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand img { width: 112px; height: 62px; object-fit: contain; }
nav { display: flex; gap: 1.5rem; }
nav a { color: #eafafa; text-decoration: none; font-weight: 650; }
nav a:hover { color: #6ce2df; }

.hero { overflow: hidden; color: var(--white); background: radial-gradient(circle at 80% 25%, rgba(39,185,189,.32), transparent 30rem), linear-gradient(135deg, #071d29, #0b3544); }
.hero-grid { min-height: 610px; padding-block: 6rem; display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: 4rem; }
.eyebrow { margin: 0 0 .7rem; color: var(--teal-dark); font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.hero .eyebrow, .contact-card .eyebrow { color: #63d9d7; }
h1, h2 { margin: 0 0 1rem; line-height: 1.12; letter-spacing: -.035em; }
h1 { max-width: 760px; font-size: clamp(2.8rem, 7vw, 5.25rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
.lead { max-width: 650px; margin: 0 0 2rem; color: #d9e9ed; font-size: clamp(1.15rem, 2.2vw, 1.38rem); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .78rem 1.25rem; border-radius: .7rem; color: #05212b; background: #54d4d0; font-weight: 800; text-decoration: none; box-shadow: 0 10px 26px rgba(0,0,0,.16); }
.button:hover { background: #75e5e1; }
.hero-mark { display: grid; place-items: center; aspect-ratio: 1; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; background: rgba(255,255,255,.045); }
.hero-mark img { width: 84%; filter: drop-shadow(0 20px 32px rgba(0,0,0,.23)); }

.section { padding-block: 6rem; }
.section-muted { background: var(--pale); }
.app-card { margin-top: 1.5rem; display: grid; grid-template-columns: .8fr 1.2fr; border: 1px solid var(--line); border-radius: 1.3rem; background: var(--white); box-shadow: var(--shadow); overflow: hidden; }
.app-logo-wrap { display: grid; place-items: center; min-height: 420px; padding: 3rem; background: linear-gradient(145deg, #071d29, #0b3e4c); }
.app-logo-wrap img { width: min(100%, 420px); }
.app-copy { padding: clamp(2rem, 5vw, 4rem); }
.app-intro { color: var(--ink); font-size: 1.16rem; }
.feature-list { margin: 1.5rem 0; padding: 0; list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: .7rem 1.2rem; }
.feature-list li { position: relative; padding-left: 1.7rem; }
.feature-list li::before { content: "✓"; position: absolute; left: 0; color: var(--teal-dark); font-weight: 900; }
.actions { margin-top: 2rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1.3rem; }
.text-link { font-weight: 750; }

.contact-card { padding: clamp(2rem, 5vw, 4rem); display: flex; align-items: center; justify-content: space-between; gap: 2rem; color: var(--white); background: linear-gradient(135deg, #0b3544, #087d83); border-radius: 1.2rem; }
.contact-card p:not(.eyebrow) { margin-bottom: 0; color: #d9f3f3; }
.button-light { color: var(--ink); background: var(--white); white-space: nowrap; }

footer { padding-block: 2rem; color: #bcd0d6; background: var(--navy); font-size: .92rem; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 2rem; }
.footer-inner p { margin: 0; }
.footer-inner div { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.footer-inner a { color: #d8efef; }

@media (max-width: 800px) {
  .hero-grid, .app-card { grid-template-columns: 1fr; }
  .hero-grid { min-height: auto; padding-block: 4.5rem; gap: 2.5rem; }
  .hero-mark { width: min(80vw, 380px); justify-self: center; }
  .app-logo-wrap { min-height: 260px; }
  .contact-card, .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 1.5rem, 1120px); }
  .header-inner { min-height: 68px; }
  .brand img { width: 85px; height: 52px; }
  nav { gap: .85rem; font-size: .88rem; }
  .section { padding-block: 4rem; }
  .feature-list { grid-template-columns: 1fr; }
  .actions { align-items: stretch; flex-direction: column; }
  .text-link { text-align: center; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }