:root {
  --navy: #17365d;
  --navy-deep: #0d2746;
  --blue: #4472c4;
  --blue-bright: #5c8ee2;
  --pale: #d9eaf7;
  --ice: #f4f8fc;
  --ink: #14263b;
  --muted: #5f6f80;
  --line: #d9e2ec;
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(13, 39, 70, .16);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, Aptos, "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 100; padding: 10px 14px; background: var(--white); border-radius: 8px; }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(217,226,236,.8); backdrop-filter: blur(14px); }
.nav-wrap { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--navy); font-size: 1.1rem; font-weight: 800; text-decoration: none; letter-spacing: -.02em; }
.site-header nav { display: flex; align-items: center; gap: 28px; }
.site-header nav a { color: #34485d; font-size: .94rem; font-weight: 650; text-decoration: none; }
.site-header nav a:hover { color: var(--blue); }
.site-header .nav-download { padding: 9px 16px; color: var(--white); background: var(--navy); border-radius: 999px; }
.site-header .nav-download:hover { color: var(--white); background: var(--blue); }

.hero { position: relative; overflow: hidden; padding: 86px 0 92px; background: radial-gradient(circle at 85% 12%, rgba(92,142,226,.22), transparent 30%), linear-gradient(150deg, #f8fbff 0%, #edf5fc 100%); }
.hero::after { content: ""; position: absolute; width: 520px; height: 520px; right: -320px; bottom: -340px; border: 80px solid rgba(68,114,196,.08); border-radius: 50%; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .92fr 1.08fr; gap: 64px; align-items: center; }
.eyebrow { margin: 0 0 13px; color: var(--blue); font-size: .76rem; line-height: 1.25; font-weight: 850; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.1; letter-spacing: -.035em; }
h1 { max-width: 670px; margin-bottom: 25px; color: var(--navy-deep); font-size: clamp(2.65rem, 5vw, 5.1rem); }
h2 { margin-bottom: 18px; color: var(--navy-deep); font-size: clamp(2rem, 3.2vw, 3.25rem); }
h3 { margin-bottom: 10px; color: var(--navy); font-size: 1.2rem; }
.lede { max-width: 650px; margin: 0 0 30px; color: #465b71; font-size: 1.18rem; }
.button-row { display: flex; flex-wrap: wrap; gap: 13px; align-items: center; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 20px; border: 1px solid transparent; border-radius: 10px; font-weight: 750; text-decoration: none; transition: transform .18s ease, background .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: var(--white); background: var(--blue); box-shadow: 0 10px 24px rgba(68,114,196,.22); }
.button.primary:hover { background: #315fae; }
.button.secondary { color: var(--navy); background: rgba(255,255,255,.7); border-color: #b9c9da; }
.button.secondary:hover { background: var(--white); border-color: var(--blue); }
.trust-list { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 25px 0 0; padding: 0; color: #556a7f; font-size: .88rem; list-style: none; }
.trust-list li::before { content: "✓"; margin-right: 7px; color: var(--blue); font-weight: 900; }
.hero-figure, .forecast-figure { margin: 0; overflow: hidden; background: var(--white); border: 1px solid rgba(185,201,218,.85); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero-figure img { width: 100%; height: auto; }
.window-bar { display: flex; gap: 6px; height: 28px; align-items: center; padding: 0 11px; background: var(--navy); }
.window-bar span { width: 7px; height: 7px; background: rgba(255,255,255,.48); border-radius: 50%; }
figcaption { padding: 10px 15px; color: var(--muted); background: var(--white); font-size: .78rem; }

.question-strip { color: var(--white); background: var(--navy); }
.question-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; padding-block: 28px; }
.question-grid p { margin: 0; font-size: 1.08rem; font-weight: 650; }
.question-grid span { display: block; margin-bottom: 3px; color: #aecaef; font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }

.section { padding: 104px 0; }
.section-heading { max-width: 760px; margin-bottom: 48px; }
.section-heading > p:last-child { max-width: 680px; margin-bottom: 0; color: var(--muted); font-size: 1.08rem; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 48px; }
.steps article { padding: 28px; background: var(--ice); border: 1px solid var(--line); border-radius: 14px; }
.steps p, .feature-list p { margin-bottom: 0; color: var(--muted); }
.step-number { display: grid; width: 34px; height: 34px; margin-bottom: 22px; place-items: center; color: var(--white); background: var(--blue); border-radius: 50%; font-size: .88rem; font-weight: 850; }
.forecast-figure img { width: 100%; height: auto; }

.features-section { color: var(--white); background: var(--navy-deep); }
.features-section h2 { color: var(--white); }
.features-section .eyebrow { color: #9fc2f0; }
.feature-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 76px; align-items: start; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.feature-list article { padding: 24px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: 14px; }
.feature-list h3 { color: var(--white); }
.feature-list p { color: #b8c7d8; }

.security-card { display: grid; grid-template-columns: 58px 1fr; gap: 25px; max-width: 940px; padding: 42px; background: var(--ice); border: 1px solid #cbd9e7; border-left: 5px solid var(--blue); border-radius: var(--radius); }
.security-card h2 { font-size: clamp(1.8rem, 3vw, 2.7rem); }
.security-card p { max-width: 760px; color: #53677b; }
.security-icon { display: grid; width: 52px; height: 52px; place-items: center; color: var(--white); background: var(--blue); border-radius: 50%; font-size: 1.4rem; font-weight: 900; }
code { padding: 2px 6px; background: #e5edf5; border-radius: 5px; }
.text-link { color: var(--blue); font-weight: 800; text-decoration: none; }
.text-link:hover { text-decoration: underline; }

.download-section { padding: 0 0 104px; }
.download-card { display: flex; align-items: center; justify-content: space-between; gap: 35px; padding: 50px; color: var(--white); background: linear-gradient(135deg, var(--blue), #2d579e); border-radius: 20px; box-shadow: 0 24px 50px rgba(45,87,158,.24); }
.download-card .eyebrow { color: #d6e6fb; }
.download-card h2 { margin-bottom: 8px; color: var(--white); }
.download-card p:last-child { margin: 0; color: #e3edfa; }
.button.light { color: var(--navy); background: var(--white); }
.button.ghost { color: var(--white); border-color: rgba(255,255,255,.6); }
.button.ghost:hover { background: rgba(255,255,255,.1); }

footer { padding: 42px 0; color: #93a6ba; background: #091c32; }
.footer-grid { display: grid; grid-template-columns: .7fr 1.7fr auto; gap: 40px; align-items: start; }
.footer-brand { color: var(--white); }
.footer-grid p { margin: 9px 0 0; font-size: .8rem; }
.footer-grid .disclaimer { margin: 0; line-height: 1.55; }
.footer-links { display: flex; gap: 16px; font-size: .85rem; }
.footer-links a { color: #c8d4e0; text-decoration: none; }
.footer-links a:hover { color: var(--white); }

@media (max-width: 900px) {
  .hero { padding-top: 64px; }
  .hero-grid, .feature-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 46px; }
  .steps { grid-template-columns: 1fr; }
  .feature-grid { gap: 35px; }
  .download-card { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 650px) {
  .shell { width: min(100% - 28px, 1180px); }
  .site-header nav a:not(.nav-download) { display: none; }
  .site-header nav { gap: 0; }
  .hero { padding: 52px 0 64px; }
  h1 { font-size: clamp(2.4rem, 12vw, 3.6rem); }
  .lede { font-size: 1.05rem; }
  .button-row { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .trust-list { display: grid; gap: 7px; }
  .question-grid { grid-template-columns: 1fr; gap: 20px; }
  .section { padding: 76px 0; }
  .feature-list { grid-template-columns: 1fr; }
  .security-card { grid-template-columns: 1fr; padding: 28px; }
  .download-section { padding-bottom: 76px; }
  .download-card { padding: 30px 24px; }
  .footer-links { flex-wrap: wrap; }
}

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