:root{color-scheme:light;--ink:#273248;--muted:#536176;--line:#d6dde5;--wash:#f3f5f8;--orange:#b74700;--green:#23623d;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--wash)}
*{box-sizing:border-box}body{margin:0}a{color:var(--orange);text-underline-offset:3px}button,input{font:inherit}button,a.button,summary{min-height:44px}button,a.button{display:inline-flex;justify-content:center;align-items:center;padding:12px 18px;border:1px solid var(--line);border-radius:10px;background:white;color:var(--ink);font-weight:650;cursor:pointer;text-decoration:none}button:disabled{cursor:default;opacity:.55}.primary,a.primary{background:var(--orange);border-color:var(--orange);color:white}:focus-visible{outline:3px solid #216da8;outline-offset:3px}[hidden]{display:none!important}
header,main,footer{max-width:780px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:0}.brand{font-size:20px;font-weight:850;letter-spacing:.03em}.badge{font-size:12px;line-height:1.4;background:#fff2e7;color:#843400;border-radius:5px;padding:5px 8px}h1{font-size:clamp(30px,6vw,44px);line-height:1.1;margin:16px 0}h2{font-size:22px;margin:0 0 14px}h3{font-size:18px}p,li{line-height:1.55}p{margin:10px 0}.intro{font-size:18px;color:var(--muted);max-width:580px}.card{background:white;border:1px solid var(--line);border-radius:16px;padding:24px;margin:20px 0}.step-label{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--orange);margin:0 0 8px}.small,.path,figcaption{font-size:14px;color:var(--muted)}.row,.choices{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}.row>*{flex:1 1 190px}.choices button[aria-pressed=true]{border-color:var(--orange);background:#fff2e7}.notice{border-left:4px solid var(--orange);padding:12px 16px;background:#fff7f0;border-radius:3px;font-size:15px}.success{border-left-color:var(--green);background:#f0f8f2}label{display:block;font-weight:650;margin:18px 0 8px}input{display:block;width:100%;min-width:0;padding:14px;border:1px solid #768295;border-radius:8px;background:white;letter-spacing:.04em}input[aria-invalid=true]{border-color:#ac2830}.id-tools{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}#id-status{min-height:44px}.subtle{background:transparent;border:0;padding-left:0;color:var(--orange);text-decoration:underline}details{border-top:1px solid var(--line);padding:8px 0}summary{padding:12px 8px;cursor:pointer;font-weight:650;line-height:1.35}details>p,details>.details-body{padding:0 8px}.screens{display:flex;gap:12px;overflow-x:auto;max-width:100%;padding:8px 0 12px}.screens figure{margin:0;flex:0 0 200px}.screens img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:8px}.controls{padding-left:20px}.control-images img{width:44px;height:44px;object-fit:contain;margin:6px 6px 6px 0}.phone-guide{margin-top:20px}.phone-guide>h3{padding-top:4px}.path{padding:10px;background:var(--wash);border-radius:6px;overflow-wrap:anywhere}.support{margin-top:24px}footer{font-size:13px;color:var(--muted);padding-top:0}.privacy{font-size:13px}.privacy p{max-width:650px}.skip{position:absolute;left:12px;top:-80px;background:white;padding:12px;z-index:2}.skip:focus{top:12px}
@media(max-width:480px){header,main,footer{padding:18px}header{padding-bottom:0}.card{padding:18px;margin:16px 0}.id-tools{grid-template-columns:1fr}.id-tools button{width:100%}.choices button{flex:1 1 40%}.screens figure{flex-basis:180px}h2{font-size:20px}.badge{max-width:150px;text-align:center}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}
/* Match the maintained app.gpspro.com header and primary button treatment. */
:root{--navy:#273248;--blue:#275e9b}
.brand{display:flex;min-height:44px;align-items:center;min-width:0}
.brand img{display:block;width:204px;max-width:100%;height:auto}
header{border-bottom:1px solid var(--line);padding-bottom:20px}
.badge{background:transparent;color:var(--muted);padding:0;flex-shrink:0}
.primary,a.primary{background:var(--blue);border-color:var(--blue)}
.primary:hover,a.primary:hover{background:#204e80;border-color:#204e80}
a{color:var(--ink)}a:hover{color:var(--orange)}
.card{border-radius:20px;box-shadow:0 6px 20px #27324805}
@media(max-width:480px){header{padding-bottom:18px}.brand img{width:180px}.badge{font-size:11px}}
/* Keep installation and the Messages handoff ahead of optional screenshots. */
:root{background:#fff}
header,main,footer{max-width:640px}
.app-heading{display:flex;gap:18px;align-items:center;margin:18px 0 24px}
.app-heading>img{width:76px;height:76px;border-radius:17px;flex-shrink:0}
.app-heading h1{font-size:28px;letter-spacing:-.035em;margin:0 0 5px}
.app-heading p{margin:0;color:var(--muted)}
.install-card{border:0;padding:0;box-shadow:none;margin:0 0 24px}
.install-card h2{font-size:18px;margin-bottom:10px}
.install-card .primary{width:100%;min-height:58px;font-size:18px;background:#187db2;border-color:#187db2;color:#fff}
.install-card .primary:hover{background:#187db2;border-color:#187db2}
.install-card>.small{text-align:center}
.install-card details,.setup-help{font-size:14px}
.card[aria-labelledby="phone-title"]{padding:0;border:0;box-shadow:none}
.card[aria-labelledby="phone-title"] h2{font-size:18px}
#phone-status{font-size:14px;color:var(--muted)}
.screens{scroll-snap-type:x proximity}
.screens figure{flex-basis:230px;scroll-snap-align:start}
.phone-guide>details[open]{margin-top:14px}
.phone-guide>details[open]>summary{font-size:18px;padding-left:0}
.phone-guide>details[open]>.details-body{padding:0}
.phone-guide .screens figcaption{font-size:12px}
#id-status{min-height:0}
@media(max-width:480px){.install-card{padding:0}.app-heading{gap:14px}.app-heading h1{font-size:25px}.app-heading>img{width:68px;height:68px}.screens figure{flex-basis:220px}}
.quick-setup h2{font-size:20px}
.quick-setup .notice{font-size:14px;margin-top:18px}
.quick-setup p:last-child{margin-bottom:0}
#settings-title,#phone-title,#id-title,#install-title,.phone-guide{scroll-margin-top:18px}