.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;
    color: #101828;
}

.site-brand-logo {
    display: block;
    width: auto;
    height: 46px;
    max-width: 210px;
    object-fit: contain;
}

.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-identity { display: flex; flex-direction: column; align-items: flex-start; }
.site-footer-logo-link { display: inline-flex; align-items: center; }
.site-footer-logo { display: block; width: auto; height: 38px; max-width: 176px; object-fit: contain; }
.site-footer-copy { margin-top: 6px; 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-brand-logo { height: 40px; max-width: 184px; }
    .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; }
}


/* Beta signup */
.beta-signup-page {
    display: grid;
    grid-template-columns: minmax(0, .85fr) minmax(520px, 1.15fr);
    gap: 64px;
    align-items: start;
    padding-top: 72px;
    padding-bottom: 90px;
}
.beta-signup-intro { position: sticky; top: 110px; }
.beta-signup-intro h1 { margin: 0; color: #101828; font-size: clamp(40px, 5vw, 62px); line-height: 1.04; letter-spacing: -.035em; }
.beta-signup-lead { margin: 22px 0 0; color: #596579; font-size: 18px; line-height: 1.65; }
.beta-signup-note { margin-top: 24px; padding: 16px 18px; border-left: 4px solid #1758b8; border-radius: 8px; background: #edf5ff; color: #29486f; font-size: 14px; line-height: 1.55; }
.beta-signup-card { padding: 32px; border: 1px solid #dbe4ef; border-radius: 20px; background: #fff; box-shadow: 0 20px 50px rgba(31, 50, 81, .09); }
.beta-signup-card h2 { margin: 0 0 8px; color: #172033; font-size: 28px; }
.beta-form-intro { margin: 0 0 26px; color: #667085; line-height: 1.55; }
.beta-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.beta-field { margin-bottom: 20px; }
.beta-field label, .beta-fieldset legend { display: block; margin-bottom: 7px; color: #27364d; font-size: 14px; font-weight: 750; }
.beta-input { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid #cbd5e1; border-radius: 9px; background: #fff; color: #172033; font: inherit; outline: none; }
.beta-input:focus { border-color: #4d8de8; box-shadow: 0 0 0 3px rgba(77, 141, 232, .12); }
.beta-textarea { min-height: 140px; resize: vertical; }
.beta-help-text { margin: -2px 0 8px; color: #7a879b; font-size: 12px; line-height: 1.45; }
.beta-fieldset { margin: 0 0 22px; padding: 0; border: 0; }
.beta-check-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px 16px; }
.beta-check-grid label { display: flex; align-items: center; gap: 8px; color: #43516a; font-size: 14px; }
.beta-validation, .beta-field-error, .beta-submit-error, .validation-message { color: #b42318; font-size: 13px; }
.beta-submit-error { margin: 0 0 14px; padding: 12px 14px; border-radius: 8px; background: #fff1f0; }
.beta-submit { border: 0; cursor: pointer; }
.beta-submit:disabled { opacity: .65; cursor: wait; transform: none; }
.beta-privacy-note { margin: 14px 0 0; color: #7a879b; font-size: 12px; line-height: 1.45; }
.beta-privacy-note a { color: #1758b8; }
.beta-success { padding: 12px 2px; }
.beta-success h2 { color: #187348; }
.beta-success p { color: #43516a; line-height: 1.6; }
.beta-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }

@media (max-width: 900px) {
    .beta-signup-page { grid-template-columns: 1fr; gap: 34px; padding-top: 52px; }
    .beta-signup-intro { position: static; }
}

@media (max-width: 680px) {
    .beta-signup-card { padding: 22px 18px; border-radius: 16px; }
    .beta-form-grid, .beta-check-grid { grid-template-columns: 1fr; }
}

/* Shared illustration of the app's Dashboard view; all readings are examples. */
.power-preview { margin:0; width:100%; min-width:0; overflow:hidden; border:1px solid #263a53; border-radius:20px; background:#08121f; color:#e7f0fc; box-shadow:0 28px 70px #071a3a35; font-family:Inter,Segoe UI,Arial,sans-serif; text-align:left; }
.power-preview *, .power-preview *::before, .power-preview *::after { box-sizing:border-box; }
.power-preview-chrome { display:flex; justify-content:space-between; gap:12px; align-items:center; padding:17px 20px; border-bottom:1px solid #223248; }
.power-preview-chrome > strong { color:#f2f7ff; font-size:18px; letter-spacing:-.5px; }
.power-preview-chrome > span { font-size:10px; color:#9fb1ca; text-transform:uppercase; letter-spacing:1.3px; }
.power-preview-views { display:flex; gap:5px; padding:13px 18px 0; font-size:11px; color:#9bacc2; }
.power-preview-views > span { border-radius:6px; padding:7px 12px; }
.power-preview-views .selected { background:#1b3e63; color:#dceeff; }
.power-preview-bank { padding:19px; }
.power-preview-heading { display:flex; justify-content:space-between; gap:8px; align-items:center; margin-bottom:20px; }
.power-preview-eyebrow { display:block; font-size:9px; letter-spacing:1.7px; color:#9bacc2; text-transform:uppercase; }
.power-preview .power-preview-heading h3 { color:#f1f6ff; font-size:23px; margin:5px 0 0; letter-spacing:-.5px; line-height:1.2; }
.power-preview-online { display:flex; gap:5px; align-items:center; color:#9bdbbf; font-size:9px; white-space:nowrap; }
.power-preview-online i { width:5px; height:5px; border-radius:50%; background:#52d9a1; }
.power-preview-overview { display:grid; grid-template-columns:124px minmax(0,1fr); align-items:center; gap:20px; }
.power-preview-ring { width:124px; height:124px; border-radius:50%; padding:9px; background:conic-gradient(#53dca9 0deg 295.2deg,#20334a 295.2deg 360deg); }
.power-preview-ring > div { width:100%; height:100%; display:flex; flex-direction:column; justify-content:center; align-items:center; border-radius:50%; background:#0b1727; }
.power-preview-ring strong { font-size:35px; line-height:1.2; color:#eef9ff; }
.power-preview-ring strong small { font-size:17px; color:#b0c2d8; }
.power-preview-ring span { font-size:9px; color:#a8bdd4; margin-top:4px; }
.power-preview-summary > span { font-size:10px; color:#a8bdd4; }
.power-preview-summary > strong { display:block; margin:5px 0; font-size:31px; line-height:1.1; letter-spacing:-1px; color:#53dca9; }
.power-preview-summary > strong small { font-size:16px; }
.power-preview-summary > .power-preview-charging { display:block; color:#53dca9; font-size:10px; }
.power-preview-summary dl { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin:14px 0 0; }
.power-preview-summary dt { color:#9bacc2; font-size:9px; }
.power-preview-summary dd { margin:4px 0 0; color:#e9f3ff; font-size:16px; font-weight:700; white-space:nowrap; }
.power-preview-summary dd small { font-size:10px; color:#b2c6df; font-weight:500; }
.power-preview-section { display:flex; justify-content:space-between; flex-wrap:wrap; gap:5px; margin:21px 0 11px; }
.power-preview-section > strong { font-size:11px; color:#cfe0f7; }
.power-preview-section > span { font-size:9px; color:#9bacc2; }
.power-preview-batteries { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px; }
.power-preview-battery { padding:12px; border:1px solid #263a53; background:#101e30; border-radius:10px; min-width:0; }
.power-preview-battery > div:first-child { display:flex; justify-content:space-between; align-items:center; gap:5px; }
.power-preview-battery > div:first-child strong { font-size:10px; color:#d8e6fa; }
.power-preview-battery > div:first-child span { font-size:8px; color:#73dfb4; }
.power-preview-soc { display:block; margin-top:9px; font-size:23px; line-height:1.2; color:#eef5ff; }
.power-preview-soc small { font-size:12px; color:#b0c1d9; }
.power-preview-level, .power-preview-flow { height:4px; margin-top:8px; border-radius:4px; background:#24334a; overflow:hidden; }
.power-preview-level span, .power-preview-flow span { display:block; height:100%; border-radius:4px; background:#53dca9; }
.power-preview-values { display:flex; justify-content:space-between; gap:5px; margin-top:8px; font-size:9px; color:#b2c6df; }
.power-preview-values strong { color:#73dfb4; }
.power-preview-device { display:grid; grid-template-columns:minmax(0,1fr) auto; column-gap:8px; row-gap:3px; padding:11px 0; border-top:1px solid #223248; }
.power-preview-device > div:nth-child(2) { text-align:right; }
.power-preview-device strong { display:block; color:#e0edff; font-size:11px; }
.power-preview-device > div:nth-child(2) strong { color:#73dfb4; font-size:14px; }
.power-preview-device small { display:block; margin-top:4px; font-size:9px; color:#9bacc2; }
.power-preview-flow { grid-column:1/-1; height:3px; }
.power-preview figcaption { padding:12px 18px; border-top:1px solid #223248; font-size:9px; line-height:1.5; color:#9bacc2; background:#0b1727; }
.beta-dashboard-preview { margin-top:28px; }
.beta-next-step { font-size:14px; line-height:1.65; color:#596579; margin-top:20px; }
.beta-signup-intro { position:static; }
.help-dashboard-example { max-width:600px; margin:25px 0; }
@media (max-width:380px) {
 .power-preview-bank { padding:14px; }
 .power-preview-overview { grid-template-columns:104px minmax(0,1fr); gap:12px; }
 .power-preview-ring { width:104px; height:104px; padding:8px; }
 .power-preview-summary > strong { font-size:27px; }
 .power-preview-heading { flex-wrap:wrap; }
 .power-preview-chrome > span { font-size:8px; }
}