:root {
    color-scheme: light;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #f2f5f3;
    color: #14231b;
}

* { box-sizing: border-box; }

body { margin: 0; min-height: 100vh; }

.shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem;
}

.panel {
    width: min(46rem, 100%);
    padding: clamp(2rem, 6vw, 4rem);
    background: #fff;
    border: 1px solid #d7e0da;
    border-radius: 1.25rem;
    box-shadow: 0 1.5rem 4rem rgba(30, 60, 43, .1);
}

.eyebrow {
    color: #236b45;
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .11em;
    text-transform: uppercase;
}

h1 { margin: .5rem 0 1rem; font-size: clamp(2rem, 7vw, 3.5rem); line-height: 1; }
p { line-height: 1.65; }

.installer-shell { width: min(58rem, calc(100% - 2rem)); margin: 4rem auto; }
.installer-header { margin-bottom: 2rem; }
.installer-header h1 { margin-bottom: .75rem; }
.installer-shell .panel { width: 100%; margin-bottom: 1.25rem; padding: clamp(1.25rem, 4vw, 2.25rem); }
h2, h3 { line-height: 1.2; }
.checks { list-style: none; padding: 0; display: grid; gap: .45rem; }
.pass { color: #17633c; }
.fail { color: #9f2f2f; }
.notice { padding: 1rem 1.25rem; margin: 1rem 0; border-radius: .75rem; }
.error { color: #751f1f; background: #fff0f0; border: 1px solid #efb7b7; }
fieldset { margin: 0 0 2rem; padding: 0; border: 0; }
legend { margin-bottom: 1rem; font-size: 1.25rem; font-weight: 800; }
label { display: grid; gap: .45rem; margin-bottom: 1rem; font-weight: 700; }
input { width: 100%; padding: .8rem .9rem; border: 1px solid #aebdb4; border-radius: .55rem; background: #fff; color: #14231b; font: inherit; }
input:focus { outline: 3px solid rgba(35, 107, 69, .18); border-color: #236b45; }
.grid.two { display: grid; grid-template-columns: minmax(0, 2fr) minmax(8rem, 1fr); gap: 1rem; }
.checkbox { grid-template-columns: auto 1fr; align-items: start; font-weight: 600; }
.checkbox input { width: 1.2rem; height: 1.2rem; margin-top: .15rem; }
.help { margin-top: -.5rem; color: #53655b; font-size: .9rem; }
.warning { margin: 1rem 0 1.5rem; padding: 1rem; border-left: .35rem solid #c97b18; background: #fff8e8; line-height: 1.55; }
button { padding: .9rem 1.25rem; border: 0; border-radius: .6rem; background: #185f3a; color: #fff; font: inherit; font-weight: 800; cursor: pointer; }
button:disabled { opacity: .45; cursor: not-allowed; }
.recovery-codes { overflow: auto; padding: 1rem; border-radius: .6rem; background: #102118; color: #e8fff0; font-size: 1rem; line-height: 1.7; }
.details { display: grid; grid-template-columns: auto 1fr; gap: .5rem 1rem; }
.details dt { font-weight: 800; }
.details dd { margin: 0; overflow-wrap: anywhere; }
.success { border-color: #8ac6a3; }

@media (max-width: 40rem) {
    .grid.two { grid-template-columns: 1fr; gap: 0; }
    .details { grid-template-columns: 1fr; }
}