:root {
    color-scheme: light;
    --ink: #14213d;
    --muted: #667085;
    --line: #e4e7ec;
    --surface: #ffffff;
    --canvas: #f4f7fb;
    --blue: #1769ff;
    --blue-dark: #0c45b7;
    --green: #14804a;
    --green-bg: #eaf8f0;
    --red: #b42318;
    --red-bg: #fff0ee;
    --amber: #9a6700;
    --amber-bg: #fff8df;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--canvas); }
.layout { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 40px 0 64px; }
.hero { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: end; padding: 36px; color: white; background: linear-gradient(135deg, #0d234d, #1769ff); border-radius: 24px; box-shadow: 0 18px 48px rgb(20 33 61 / 18%); }
.eyebrow { margin: 0 0 10px; color: #bcd4ff; font-size: 12px; font-weight: 800; letter-spacing: .14em; }
h1 { margin: 0; font-size: clamp(30px, 5vw, 50px); line-height: 1.05; letter-spacing: -.04em; }
.lead { max-width: 700px; margin: 18px 0 0; color: #dfeaff; line-height: 1.55; }
.environment-form label { display: block; margin-bottom: 8px; font-size: 13px; font-weight: 700; color: #dfeaff; }
.select-row { display: flex; gap: 10px; }
select, button { min-height: 46px; border-radius: 12px; border: 1px solid transparent; font: inherit; }
select { flex: 1; min-width: 0; padding: 0 14px; color: var(--ink); background: white; }
button { padding: 0 18px; color: white; background: #0b1d3f; font-weight: 750; cursor: pointer; }
button:hover { background: #07152e; }
.summary { display: flex; justify-content: space-between; gap: 32px; align-items: center; margin: 24px 0; padding: 24px 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; }
.summary-main { display: flex; gap: 14px; align-items: center; }
.summary-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; font-size: 23px; font-weight: 900; }
.summary-pass .summary-icon { color: var(--green); background: var(--green-bg); }
.summary-fail .summary-icon { color: var(--red); background: var(--red-bg); }
.summary-main strong, .summary-main span { display: block; }
.summary-main span { margin-top: 3px; color: var(--muted); font-size: 13px; }
.summary dl { display: flex; gap: 30px; margin: 0; }
.summary dl div { text-align: right; }
.summary dt { color: var(--muted); font-size: 12px; }
.summary dd { margin: 3px 0 0; font-size: 18px; font-weight: 800; }
.results { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.test-card { min-width: 0; padding: 22px; background: var(--surface); border: 1px solid var(--line); border-top: 4px solid var(--green); border-radius: 16px; }
.test-card.failed { border-top-color: var(--red); }
.card-heading { display: flex; justify-content: space-between; gap: 20px; }
.status-badge { display: inline-block; padding: 4px 8px; color: var(--green); background: var(--green-bg); border-radius: 999px; font-size: 11px; font-weight: 900; letter-spacing: .08em; }
.failed .status-badge { color: var(--red); background: var(--red-bg); }
h2 { margin: 12px 0 7px; font-size: 19px; letter-spacing: -.02em; }
code { color: var(--blue-dark); font-size: 12px; overflow-wrap: anywhere; }
.http-meta { flex: 0 0 auto; text-align: right; }
.http-meta strong, .http-meta span { display: block; }
.http-meta strong { font-size: 13px; }
.http-meta span { margin-top: 5px; color: var(--muted); font-size: 12px; }
.messages { margin: 18px 0 0; padding: 12px 12px 12px 30px; border-radius: 10px; font-size: 13px; line-height: 1.45; }
.errors { color: var(--red); background: var(--red-bg); }
.warnings { color: var(--amber); background: var(--amber-bg); }
.messages li + li { margin-top: 5px; }
details { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 14px; }
summary { color: var(--muted); font-size: 13px; font-weight: 650; cursor: pointer; }
pre { max-height: 390px; margin: 14px 0 0; padding: 16px; overflow: auto; color: #dce7ff; background: #101828; border-radius: 10px; font: 12px/1.55 ui-monospace, SFMono-Regular, Consolas, monospace; }
.page-error { margin-top: 24px; padding: 20px; color: var(--red); background: var(--red-bg); border-radius: 14px; }

@media (max-width: 820px) {
    .hero { grid-template-columns: 1fr; gap: 28px; padding: 26px; }
    .summary { align-items: flex-start; flex-direction: column; }
    .summary dl { width: 100%; justify-content: space-between; gap: 10px; }
    .summary dl div { text-align: left; }
    .results { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
    .layout { width: min(100% - 20px, 1180px); padding-top: 10px; }
    .hero { border-radius: 16px; }
    .select-row { flex-direction: column; }
    .summary dl { display: grid; grid-template-columns: 1fr 1fr; }
    .card-heading { flex-direction: column; }
    .http-meta { text-align: left; }
}