:root {
    color-scheme: light;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --ink: #172033;
    --muted: #61708a;
    --line: #dce3ee;
    --surface: #ffffff;
    --soft: #f4f7fb;
    --brand: #2445a7;
    --brand-dark: #17347f;
    --good: #147a4b;
    --bad: #b42318;
    --warn: #9a6700;
}
* { box-sizing: border-box; }
body { margin: 0; background: linear-gradient(160deg, #eef3ff, #f8fafc 45%, #edf2f7); color: var(--ink); min-height: 100vh; }
.shell { width: min(1040px, calc(100% - 32px)); margin: 42px auto; }
.brand-banner { width: min(680px, 100%); margin: 0 auto 18px; padding: 10px; border: 1px solid rgba(36,69,167,.12); border-radius: 18px; background: rgba(255,255,255,.98); box-shadow: 0 14px 34px rgba(29,44,77,.12); }
.brand-banner img { display: block; width: 100%; height: auto; border-radius: 12px; }
.card { background: rgba(255,255,255,.97); border: 1px solid var(--line); box-shadow: 0 18px 50px rgba(29,44,77,.12); border-radius: 22px; overflow: hidden; }
.card-header { padding: 24px 28px; border-bottom: 1px solid var(--line); background: linear-gradient(90deg, #fff, #f8faff); }
.card-body { padding: 28px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 20px; }
.step { height: 5px; border-radius: 999px; background: #dfe6f2; }
.step.active { background: var(--brand); }
h2 { margin: 0 0 8px; font-size: 1.45rem; }
h3 { margin: 24px 0 12px; font-size: 1.05rem; }
p { line-height: 1.55; }
.lead { color: var(--muted); margin: 0; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.grid .full { grid-column: 1 / -1; }
label { display: block; font-weight: 700; margin-bottom: 7px; }
.help { display: block; margin-top: 6px; color: var(--muted); font-size: .86rem; line-height: 1.4; }
input, select { width: 100%; border: 1px solid #c8d2e2; border-radius: 10px; padding: 11px 12px; font: inherit; background: #fff; color: var(--ink); }
input:focus, select:focus { outline: 3px solid rgba(36,69,167,.15); border-color: var(--brand); }
.check { display: flex; align-items: flex-start; gap: 10px; padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--soft); }
.check input { width: auto; margin-top: 3px; }
.check label { margin: 0; font-weight: 600; }
.actions { display: flex; justify-content: flex-end; gap: 12px; padding-top: 24px; margin-top: 24px; border-top: 1px solid var(--line); }
button, .button { border: 0; border-radius: 10px; padding: 12px 18px; font: inherit; font-weight: 750; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.primary { background: var(--brand); color: white; }
.primary:hover { background: var(--brand-dark); }
.secondary { background: #e9eef7; color: var(--ink); }
button:disabled { opacity: .5; cursor: not-allowed; }
.alert { padding: 14px 16px; border-radius: 12px; margin-bottom: 18px; border: 1px solid; }
.alert.error { background: #fff1f0; border-color: #f3b6b2; color: #8f1d16; }
.alert.success { background: #ecfdf3; border-color: #a7e1bf; color: #11643e; }
.alert.warning { background: #fff8e6; border-color: #efd48b; color: #7a5100; }
.requirements { display: grid; gap: 10px; }
.requirement { display: grid; grid-template-columns: 28px 1fr; gap: 10px; padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px; }
.status { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; color: white; font-weight: 900; font-size: .8rem; }
.status.ok { background: var(--good); }
.status.bad { background: var(--bad); }
.status.warn { background: var(--warn); }
.requirement strong { display: block; }
.requirement small { color: var(--muted); }
.platform { display: flex; flex-wrap: wrap; gap: 8px; margin: 15px 0 0; }
.pill { background: #e8edfb; color: #28428e; padding: 6px 10px; border-radius: 999px; font-size: .85rem; font-weight: 700; }
.section { padding-top: 8px; }
.spaced { margin-top: 16px; }
.hidden { display: none !important; }
code { background: #eef2f7; border-radius: 6px; padding: 2px 6px; word-break: break-word; }
.summary { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.summary li { padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--soft); }
footer { text-align: center; color: var(--muted); font-size: .85rem; margin-top: 18px; }
@media (max-width: 760px) { .shell { margin: 18px auto; width: min(100% - 18px, 1040px); } .grid { grid-template-columns: 1fr; } .grid .full { grid-column: auto; } .card-body, .card-header { padding: 20px; } }

/* v0.9.0 agreed UI corrective — professional two-column installer/PASS layout + typography */
body{font-size:14px;background:#f5f6f8}
h2{font-size:clamp(25.6px,2vw,28px);line-height:1.18}h3{font-size:16px}p,input,select,button,.button{font-size:14px}label{font-size:13px}.help,.requirement small{font-size:13px}.status,.pill,footer{font-size:12px}
@media (min-width: 900px){.shell{width:min(1180px,calc(100% - 40px));display:grid;grid-template-columns:minmax(300px,.82fr) minmax(0,1.5fr);grid-template-areas:"brand card" "footer card";gap:18px 24px;align-items:start}.brand-banner{grid-area:brand;width:100%;margin:0;position:sticky;top:32px}.card{grid-area:card}.shell>footer{grid-area:footer;margin-top:0}.card-header{padding:22px 26px}.card-body{padding:26px}}
@media (max-width: 899px){.shell{display:block}.brand-banner{position:static}}