:root {
    --navy-950: #061723;
    --navy-900: #071b2b;
    --navy-800: #0b293d;
    --navy-700: #123b52;
    --ink: #122a3a;
    --muted: #5e7180;
    --line: #dce5e8;
    --mist: #f3f7f6;
    --white: #fff;
    --green: #1fb77a;
    --green-bright: #67e6af;
    --green-pale: #dff8ed;
    --orange: #ffb15b;
    --radius: 22px;
    --shadow: 0 26px 70px rgba(2, 20, 32, .16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    overflow-x: clip;
    color: var(--ink);
    background: var(--white);
    font: 16px/1.65 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 10px 16px; background: var(--white); border-radius: 8px; }
.skip-link:focus { top: 12px; }

.site-header {
    position: absolute;
    z-index: 10;
    top: 0;
    left: 0;
    right: 0;
    color: var(--white);
    border-bottom: 1px solid rgba(255,255,255,.11);
}
.nav-wrap { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; letter-spacing: .08em; font-size: 18px; }
.brand svg { width: 33px; height: 38px; color: var(--green-bright); }
.brand strong { color: var(--green-bright); font-weight: 750; }
nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
nav a { color: rgba(255,255,255,.76); text-decoration: none; font-size: 14px; font-weight: 600; }
nav a:hover, nav a:focus { color: var(--white); }

.button { display: inline-flex; min-height: 54px; padding: 0 24px; align-items: center; justify-content: center; gap: 10px; border-radius: 9px; text-decoration: none; font-size: 15px; font-weight: 750; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-small { min-height: 42px; padding-inline: 18px; font-size: 13px; }
.button-outline { border: 1px solid rgba(255,255,255,.3); }
.button-outline:hover { background: rgba(255,255,255,.08); }
.button-primary { color: var(--navy-950); background: var(--green-bright); box-shadow: 0 12px 30px rgba(68, 221, 160, .22); }
.button-primary:hover { background: #7cebbb; box-shadow: 0 16px 36px rgba(68, 221, 160, .3); }
.button-light { color: var(--navy-950); background: var(--white); }

.hero { position: relative; overflow: hidden; min-height: 790px; padding: 170px 0 110px; color: var(--white); background: radial-gradient(circle at 79% 28%, #174e64 0, transparent 31%), linear-gradient(135deg, var(--navy-950), #09293d 64%, #0b3548); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .17; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 70px 70px; mask-image: linear-gradient(to right, black, transparent 73%); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .95fr 1.05fr; gap: 78px; align-items: center; }
.hero-grid > *, .split-heading > *, .privacy-grid > *, .use-grid > *, .faq-grid > * { min-width: 0; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 20px; color: var(--green-bright); letter-spacing: .13em; text-transform: uppercase; font-size: 12px; font-weight: 800; }
.eyebrow span { flex: 0 0 28px; width: 28px; height: 2px; background: currentColor; }
.eyebrow.dark { color: #168860; }
.eyebrow.light { color: var(--green-bright); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 670px; margin-bottom: 24px; font-size: clamp(46px, 5.4vw, 72px); line-height: 1.04; letter-spacing: -.045em; font-weight: 720; }
h1 em { color: var(--green-bright); font-style: normal; }
.hero-lead { max-width: 620px; margin-bottom: 34px; color: rgba(255,255,255,.73); font-size: 19px; line-height: 1.7; }
.hero-actions { display: flex; align-items: center; gap: 26px; }
.text-link { color: var(--white); text-underline-offset: 5px; text-decoration-color: rgba(255,255,255,.3); font-size: 14px; font-weight: 700; }
.text-link span { margin-left: 6px; color: var(--green-bright); }
.trust-list { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 34px 0 0; padding: 0; list-style: none; color: rgba(255,255,255,.67); font-size: 12px; }
.trust-list li::before { content: "✓"; margin-right: 7px; color: var(--green-bright); font-weight: 800; }

.hero-visual { position: relative; padding: 20px 0 34px; }
.status-card { position: relative; z-index: 2; overflow: hidden; padding: 21px; color: var(--ink); background: rgba(255,255,255,.98); border: 1px solid rgba(255,255,255,.45); border-radius: 24px; box-shadow: var(--shadow); transform: rotate(1deg); }
.status-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 17px; }
.status-head > div { display: flex; flex-direction: column; }
.status-label { color: #82929c; letter-spacing: .14em; font-size: 9px; font-weight: 800; }
.status-head strong { font-size: 15px; }
.armed { display: inline-flex; align-items: center; gap: 7px; padding: 6px 10px; color: #08784f; background: var(--green-pale); border-radius: 99px; font-size: 10px; font-weight: 800; }
.armed i { width: 7px; height: 7px; background: var(--green); border-radius: 50%; box-shadow: 0 0 0 4px rgba(31,183,122,.14); }
.camera-frame { position: relative; overflow: hidden; height: 220px; border-radius: 15px; background: var(--navy-800); }
.camera-frame svg { display: block; width: 100%; height: 100%; }
.camera-name, .camera-time { position: absolute; top: 13px; color: rgba(255,255,255,.68); letter-spacing: .08em; font-size: 8px; font-weight: 700; }
.camera-name { left: 14px; }
.camera-time { right: 14px; }
.event-list { margin: 6px 0 0; padding: 0; list-style: none; }
.event-list li { display: grid; grid-template-columns: 29px 1fr auto; gap: 10px; align-items: center; padding: 11px 5px; border-bottom: 1px solid #edf1f2; }
.event-list li:last-child { border-bottom: 0; }
.event-icon { display: grid; width: 27px; height: 27px; place-items: center; color: #66808d; background: #edf3f3; border-radius: 50%; font-size: 9px; font-weight: 800; }
.event-list .done .event-icon, .event-list .active .event-icon { color: #08784f; background: var(--green-pale); }
.event-list .active { margin: 2px -4px -2px; padding-inline: 9px; background: #f2fbf7; border-radius: 10px; }
.event-list div { display: flex; flex-direction: column; }
.event-list strong { font-size: 11px; }
.event-list small { color: #82939d; font-size: 9px; }
.event-list time { color: #90a0a9; font-size: 9px; }
.privacy-chip { position: absolute; z-index: 3; right: -24px; bottom: 0; display: flex; align-items: center; gap: 10px; padding: 14px 17px; color: var(--navy-900); background: var(--white); border-radius: 12px; box-shadow: 0 14px 34px rgba(0,0,0,.25); font-size: 11px; }
.privacy-chip svg { width: 24px; color: var(--green); }
.privacy-chip span { display: flex; flex-direction: column; }
.signal { position: absolute; z-index: 1; border: 1px solid rgba(103,230,175,.22); border-radius: 50%; }
.signal-one { width: 540px; height: 540px; right: -70px; top: -20px; }
.signal-two { width: 400px; height: 400px; right: 0; top: 50px; }

.flow { position: relative; z-index: 2; margin-top: -34px; }
.flow-grid { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; padding: 24px 40px; background: var(--white); border-radius: 16px; box-shadow: 0 18px 50px rgba(8,34,50,.1); }
.flow-grid > div { display: flex; align-items: center; justify-content: center; gap: 14px; }
.flow-grid p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.4; }
.flow-grid strong { color: var(--ink); font-size: 13px; }
.flow-icon { display: grid; width: 42px; height: 42px; place-items: center; color: #0e8c60; background: var(--green-pale); border-radius: 12px; font-size: 11px; font-weight: 850; }
.flow-arrow { color: #a9b8bf; }

.section { padding: 112px 0; }
.section-tint { background: var(--mist); }
.section-heading { max-width: 720px; margin-bottom: 55px; }
.section-heading h2, .privacy h2, .use-cases h2, .faq h2, .cta h2 { margin-bottom: 20px; font-size: clamp(35px, 4vw, 52px); line-height: 1.12; letter-spacing: -.035em; }
.section-heading > p:last-child, .split-heading > p, .steps p, .feature-card p, .use-cases p, .faq-list p { color: var(--muted); }
.split-heading { display: grid; max-width: none; grid-template-columns: 1fr .65fr; gap: 90px; align-items: end; }
.split-heading h2 { margin-bottom: 0; }
.split-heading > p { margin-bottom: 7px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: steps; }
.steps article { padding: 32px; border: 1px solid var(--line); border-radius: var(--radius); }
.step-number { display: block; margin-bottom: 46px; color: var(--green); font-size: 12px; font-weight: 850; }
.steps h3, .feature-card h3 { margin-bottom: 12px; font-size: 21px; letter-spacing: -.02em; }
.steps p, .feature-card p { margin-bottom: 0; font-size: 14px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card { position: relative; overflow: hidden; min-height: 265px; padding: 30px; background: var(--white); border: 1px solid #e4ecec; border-radius: 18px; }
.feature-wide { grid-column: span 2; color: var(--white); background: var(--navy-900); border-color: var(--navy-900); }
.feature-wide p { max-width: 53%; color: rgba(255,255,255,.65); }
.feature-mark, .feature-icon { display: grid; width: 46px; height: 46px; margin-bottom: 37px; place-items: center; color: #0b865c; background: var(--green-pale); border-radius: 13px; font-size: 13px; font-weight: 850; }
.feature-icon { font-size: 19px; }
.feature-accent { background: var(--green-pale); border-color: #c7eddd; }
.feature-accent .feature-icon { width: auto; justify-content: start; color: #08784f; background: transparent; font-size: 18px; }
.mini-detection { position: absolute; right: 28px; bottom: 28px; width: 190px; height: 155px; background: linear-gradient(145deg, #22465b, #0d2939); border-radius: 13px; }
.mini-detection::before { content: ""; position: absolute; inset: 28px 58px 18px; border: 2px solid var(--green-bright); }
.mini-detection::after { content: ""; position: absolute; left: 91px; top: 46px; width: 15px; height: 15px; background: var(--green-bright); border-radius: 50% 50% 42% 42%; box-shadow: 0 18px 0 8px var(--green-bright); }
.mini-detection span { position: absolute; height: 1px; background: rgba(255,255,255,.12); }
.mini-detection span:first-child { left: 0; right: 0; top: 50%; }
.mini-detection span:nth-child(2) { top: 0; bottom: 0; left: 50%; width: 1px; height: auto; }
.mini-detection i { position: absolute; top: 19px; left: 58px; padding: 2px 6px; color: var(--navy-950); background: var(--green-bright); font-size: 8px; font-style: normal; font-weight: 800; }

.privacy { color: var(--white); background: linear-gradient(135deg, var(--navy-950), #0a3044); }
.privacy-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 95px; align-items: center; }
.privacy-copy > p:not(.eyebrow) { max-width: 650px; color: rgba(255,255,255,.68); font-size: 17px; }
.privacy-copy ul { margin: 30px 0 0; padding: 0; list-style: none; }
.privacy-copy li { margin: 10px 0; color: rgba(255,255,255,.78); font-size: 14px; }
.privacy-copy li i { display: inline-grid; width: 24px; height: 24px; margin-right: 10px; place-items: center; color: var(--green-bright); background: rgba(103,230,175,.1); border-radius: 50%; font-style: normal; }
.privacy-diagram { padding: 30px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.11); border-radius: 20px; }
.diagram-row { display: grid; grid-template-columns: 118px 1fr 126px; align-items: center; margin-bottom: 24px; }
.diagram-state, .diagram-result { padding: 9px 12px; border-radius: 8px; font-size: 11px; font-weight: 750; text-align: center; }
.diagram-state { background: rgba(255,255,255,.09); }
.diagram-state i { display: inline-block; width: 7px; height: 7px; margin-right: 5px; border-radius: 50%; }
.open .diagram-state i { background: var(--green-bright); }
.closed .diagram-state i { background: var(--orange); }
.diagram-line { position: relative; height: 1px; background: rgba(255,255,255,.23); }
.open .diagram-line::after { content: "›"; position: absolute; right: -1px; top: -13px; color: var(--green-bright); font-size: 18px; }
.closed .diagram-line { background: repeating-linear-gradient(90deg, rgba(255,255,255,.22) 0 5px, transparent 5px 10px); }
.diagram-line b { position: absolute; left: 50%; top: 50%; display: grid; width: 24px; height: 24px; place-items: center; color: var(--orange); background: #173244; border-radius: 50%; transform: translate(-50%,-50%); }
.open .diagram-result { color: #083e2d; background: var(--green-bright); }
.closed .diagram-result { color: #6f3c00; background: #ffd8ac; }
.privacy-diagram > p { margin: 8px 0 0; color: rgba(255,255,255,.47); text-align: center; font-size: 11px; }

.use-cases { padding-block: 92px; }
.use-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; align-items: center; }
.use-cases h2 { margin-bottom: 0; }
.use-list { display: flex; flex-wrap: wrap; gap: 10px; }
.use-list span { padding: 13px 17px; background: var(--mist); border: 1px solid var(--line); border-radius: 99px; font-size: 13px; font-weight: 700; }

.faq { background: #f8faf9; }
.faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 100px; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; justify-content: space-between; gap: 20px; padding: 24px 0; cursor: pointer; list-style: none; font-weight: 750; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--green); font-size: 22px; font-weight: 400; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list p { padding: 0 40px 24px 0; margin: -8px 0 0; font-size: 14px; }

.cta { padding: 70px 0; color: var(--white); background: var(--green); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta .eyebrow { margin-bottom: 10px; color: var(--navy-900); }
.cta h2 { max-width: 750px; margin-bottom: 0; }
footer { color: rgba(255,255,255,.57); background: var(--navy-950); }
.footer-inner { min-height: 125px; display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; gap: 25px; font-size: 12px; }
.brand-footer { color: var(--white); }
.footer-inner p { margin: 0; text-align: center; }
.footer-inner > div { display: flex; justify-content: flex-end; gap: 22px; }
.footer-inner a { color: var(--white); text-underline-offset: 4px; }

@media (max-width: 960px) {
    nav { display: none; }
    .hero { padding-top: 140px; }
    .hero-grid { grid-template-columns: 1fr; gap: 65px; }
    .hero-copy { max-width: 720px; }
    .hero-visual { max-width: 650px; margin-inline: auto; }
    .flow-grid { grid-template-columns: 1fr; gap: 12px; }
    .flow-grid > div { justify-content: flex-start; }
    .flow-arrow { display: none; }
    .split-heading, .privacy-grid, .use-grid, .faq-grid { grid-template-columns: 1fr; gap: 40px; }
    .steps { grid-template-columns: 1fr; }
    .step-number { margin-bottom: 22px; }
    .feature-grid { grid-template-columns: 1fr 1fr; }
    .feature-wide { grid-column: span 2; }
}

@media (max-width: 640px) {
    .container { width: min(100% - 28px, 1160px); }
    .site-header .button { display: none; }
    .nav-wrap { min-height: 70px; }
    .hero { min-height: auto; padding: 120px 0 85px; }
    .eyebrow { align-items: flex-start; font-size: 10px; line-height: 1.5; letter-spacing: .1em; }
    .eyebrow span { margin-top: 7px; }
    h1 { font-size: 44px; }
    .hero-lead { font-size: 17px; }
    .hero-actions { align-items: flex-start; flex-direction: column; }
    .trust-list { display: grid; }
    .hero-visual, .status-card { width: 100%; min-width: 0; }
    .status-card { padding: 13px; border-radius: 17px; transform: none; }
    .camera-frame { height: 170px; }
    .event-list time { display: none; }
    .privacy-chip { right: 8px; }
    .signal { display: none; }
    .flow { margin-top: -24px; }
    .flow-grid { padding: 22px; }
    .section { padding: 80px 0; }
    .section-heading { margin-bottom: 38px; }
    .section-heading h2, .privacy h2, .use-cases h2, .faq h2, .cta h2 { font-size: 36px; }
    .feature-grid { grid-template-columns: 1fr; }
    .feature-wide { grid-column: auto; min-height: 390px; }
    .feature-wide p { max-width: none; }
    .mini-detection { left: 30px; right: 30px; bottom: 28px; width: auto; }
    .diagram-row { grid-template-columns: 1fr; gap: 12px; }
    .diagram-line { width: 1px; height: 35px; margin: auto; }
    .open .diagram-line::after { right: -6px; top: 18px; transform: rotate(90deg); }
    .closed .diagram-line { background: repeating-linear-gradient(0deg, rgba(255,255,255,.22) 0 5px, transparent 5px 10px); }
    .cta-inner { align-items: flex-start; flex-direction: column; }
    .footer-inner { grid-template-columns: 1fr; padding-block: 35px; text-align: center; }
    .footer-inner p { text-align: center; }
    .footer-inner > div { justify-content: center; }
    .brand-footer { justify-content: center; }
}

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