.site-shell {
    min-height: 100vh;
    background: #f7f9fc;
    color: #172033;
    font-family: "Segoe UI", Arial, sans-serif;
}

.site-shell *, .site-shell *::before, .site-shell *::after { box-sizing: border-box; }
.site-shell a { text-decoration: none; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    border-bottom: 1px solid rgba(213, 222, 235, .9);
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(12px);
}

.site-header-inner,
.site-footer-inner,
.site-section {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.site-header-inner {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #101828;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -.02em;
}

.site-brand-mark {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: linear-gradient(145deg, #1758b8, #2a7be4);
    color: white;
    font-size: 18px;
    box-shadow: 0 7px 18px rgba(23, 88, 184, .24);
}

.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a { color: #475467; font-size: 14px; font-weight: 700; }
.site-nav a:hover { color: #1758b8; }
.site-nav .site-nav-cta {
    padding: 9px 15px;
    border-radius: 9px;
    background: #1758b8;
    color: #fff;
}
.site-nav .site-nav-cta:hover { color: #fff; background: #114a9d; }

.site-hero {
    overflow: hidden;
    background:
        radial-gradient(circle at 88% 20%, rgba(62, 131, 224, .15), transparent 31%),
        linear-gradient(180deg, #ffffff 0%, #f7f9fc 100%);
}

.site-hero-grid {
    min-height: 610px;
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(430px, .98fr);
    align-items: center;
    gap: 70px;
    padding-top: 76px;
    padding-bottom: 84px;
}

.site-eyebrow {
    margin-bottom: 14px;
    color: #1758b8;
    font-size: 12px;
    font-weight: 850;
    letter-spacing: .12em;
    text-transform: uppercase;
}
.site-eyebrow.light { color: #a9ceff; }

.site-hero h1,
.site-section-heading h2,
.site-band h2,
.site-safety-grid h2,
.site-beta h2 {
    margin: 0;
    color: #101828;
    letter-spacing: -.035em;
}

.site-hero h1 { max-width: 680px; font-size: clamp(42px, 5.3vw, 68px); line-height: 1.03; }
.site-hero-lead { max-width: 650px; margin: 24px 0 0; color: #596579; font-size: 19px; line-height: 1.65; }
.site-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.site-button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-height: 46px;
    padding: 0 19px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 800;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.site-button:hover { transform: translateY(-1px); }
.site-button.primary { background: #1758b8; color: #fff; box-shadow: 0 9px 20px rgba(23, 88, 184, .22); }
.site-button.primary:hover { background: #114a9d; }
.site-button.secondary { border: 1px solid #ccd6e4; background: #fff; color: #27364d; }
.site-button.light { background: #fff; color: #154a91; }
.site-button.outline-light { border: 1px solid rgba(255,255,255,.55); color: #fff; }
.site-platform-note { margin-top: 16px; color: #7a879b; font-size: 13px; }

.site-dashboard-card {
    padding: 24px;
    border: 1px solid #dbe4ef;
    border-radius: 22px;
    background: rgba(255,255,255,.97);
    box-shadow: 0 28px 70px rgba(31, 50, 81, .15);
}
.site-dashboard-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding-bottom: 20px; }
.site-dashboard-top strong { display: block; margin-top: 4px; color: #172033; font-size: 21px; }
.site-dashboard-label { color: #7a879b; font-size: 10px; font-weight: 850; letter-spacing: .12em; }
.site-status-pill { padding: 6px 10px; border-radius: 999px; background: #e8f7ef; color: #187348; font-size: 12px; font-weight: 800; }
.site-metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 20px; }
.site-metric { padding: 16px; border-radius: 13px; background: #f4f7fb; }
.site-metric span { display: block; margin-bottom: 6px; color: #7a879b; font-size: 12px; }
.site-metric strong { color: #172033; font-size: 24px; }
.site-device-row { display: grid; grid-template-columns: 10px 1fr auto; align-items: center; gap: 11px; min-height: 58px; border-top: 1px solid #e8edf4; }
.site-device-dot { width: 8px; height: 8px; border-radius: 50%; background: #28a36a; box-shadow: 0 0 0 4px #e9f7ef; }
.site-device-row strong { display: block; color: #27364d; font-size: 13px; }
.site-device-row small { display: block; margin-top: 2px; color: #8994a7; font-size: 11px; }
.site-device-reading { color: #27364d; font-size: 13px; font-weight: 800; }

.site-section-block { padding-top: 96px; padding-bottom: 96px; }
.site-section-heading { max-width: 720px; margin-bottom: 38px; }
.site-section-heading h2,
.site-band h2,
.site-safety-grid h2,
.site-beta h2 { font-size: clamp(31px, 4vw, 44px); line-height: 1.1; }
.site-section-heading p,
.site-band p,
.site-safety-grid p,
.site-beta p { color: #667085; font-size: 17px; line-height: 1.65; }

.site-feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.site-feature-card { min-height: 235px; padding: 24px; border: 1px solid #dde5ef; border-radius: 16px; background: #fff; box-shadow: 0 8px 26px rgba(31, 50, 81, .045); }
.site-feature-icon { width: 36px; height: 36px; display: grid; place-items: center; margin-bottom: 34px; border-radius: 9px; background: #edf4fd; color: #1758b8; font-size: 11px; font-weight: 900; }
.site-feature-card h3 { margin: 0 0 9px; color: #172033; font-size: 19px; }
.site-feature-card p { margin: 0; color: #667085; font-size: 14px; line-height: 1.6; }

.site-band { background: #10213a; }
.site-band-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; padding-top: 90px; padding-bottom: 90px; }
.site-band h2 { color: #fff; }
.site-band p { color: #b7c5d9; }
.site-text-link { color: #8ebdf8; font-size: 14px; font-weight: 800; }
.site-support-panel { overflow: hidden; border: 1px solid #334765; border-radius: 17px; background: #152941; }
.site-support-row { display: flex; justify-content: space-between; gap: 24px; padding: 20px 22px; border-bottom: 1px solid #2e425e; }
.site-support-row strong { color: #f5f9ff; font-size: 14px; }
.site-support-row span { color: #aabbd1; font-size: 13px; text-align: right; }
.site-support-note { padding: 16px 22px; color: #8295ad; font-size: 12px; line-height: 1.5; }

.site-safety-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; padding-top: 90px; padding-bottom: 90px; }
.site-safety-grid p { margin-top: 0; }
.site-safety-grid .site-text-link { color: #1758b8; }

.site-beta { background: linear-gradient(135deg, #1758b8, #1f6acb); }
.site-beta-inner { display: flex; align-items: center; justify-content: space-between; gap: 70px; padding-top: 68px; padding-bottom: 68px; }
.site-beta-inner > div:first-child { max-width: 720px; }
.site-beta h2 { color: #fff; }
.site-beta p { margin-bottom: 0; color: #d8e8fb; }
.site-beta-actions { display: flex; gap: 10px; flex-shrink: 0; }

.site-footer { border-top: 1px solid #e0e6ef; background: #fff; }
.site-footer-inner { min-height: 126px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-footer-brand { color: #172033; font-size: 18px; font-weight: 850; }
.site-footer-copy { margin-top: 5px; color: #8b95a6; font-size: 12px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
.site-footer a { color: #667085; font-size: 13px; font-weight: 650; }
.site-footer a:hover { color: #1758b8; }

@media (max-width: 980px) {
    .site-hero-grid { grid-template-columns: 1fr; gap: 46px; }
    .site-dashboard-card { max-width: 680px; }
    .site-feature-grid { grid-template-columns: repeat(2, 1fr); }
    .site-band-grid { grid-template-columns: 1fr; gap: 38px; }
    .site-safety-grid { grid-template-columns: 1fr; gap: 20px; }
    .site-beta-inner { align-items: flex-start; flex-direction: column; gap: 28px; }
}

@media (max-width: 680px) {
    .site-header-inner, .site-footer-inner, .site-section { width: min(100% - 28px, 1180px); }
    .site-header-inner { min-height: 64px; }
    .site-nav a:not(.site-nav-cta) { display: none; }
    .site-hero-grid { min-height: auto; padding-top: 54px; padding-bottom: 60px; }
    .site-hero h1 { font-size: clamp(38px, 12vw, 52px); }
    .site-hero-lead { font-size: 17px; }
    .site-feature-grid { grid-template-columns: 1fr; }
    .site-feature-card { min-height: auto; }
    .site-metric-grid { grid-template-columns: 1fr 1fr; }
    .site-dashboard-card { padding: 18px; border-radius: 17px; }
    .site-support-row { flex-direction: column; gap: 5px; }
    .site-support-row span { text-align: left; }
    .site-beta-actions { width: 100%; flex-direction: column; }
    .site-footer-inner { align-items: flex-start; flex-direction: column; padding-top: 28px; padding-bottom: 28px; }
}