:root { color-scheme: dark; --bg: #07111f; --panel: #101e30; --text: #f8fafc; --muted: #cbd5e1; --accent: #5eead4; --accent-dark: #042f2e; --border: #45617e; --focus: #fde047; --error: #fecaca; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 18px/1.55 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
main { width: min(960px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0 32px; }
header { margin-bottom: 34px; }
.eyebrow { color: var(--accent); font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(3rem, 9vw, 6rem); line-height: .95; letter-spacing: -.04em; }
.intro { color: var(--muted); max-width: 680px; font-size: 1.2rem; }
form, .results-section { background: var(--panel); border: 2px solid var(--border); border-radius: 16px; padding: 28px; }
form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.host-field { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 8px; }
label { font-weight: 800; }
input, select, button { min-height: 56px; border: 2px solid var(--border); border-radius: 8px; font: inherit; }
input, select { width: 100%; background: #07111f; color: var(--text); padding: 10px 14px; }
button { cursor: pointer; background: var(--accent); color: var(--accent-dark); padding: 10px 24px; font-weight: 900; }
button:hover { filter: brightness(1.08); }
:focus-visible { outline: 4px solid var(--focus); outline-offset: 4px; }
form > button { grid-column: 1 / -1; font-size: 1.1rem; }
.results-section { margin-top: 28px; }
.results-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
h2 { margin: 0; font-size: 2rem; }
.secondary { min-height: 48px; background: transparent; color: var(--accent); border-color: var(--accent); }
#status { color: var(--muted); }
#status.error { color: var(--error); font-weight: 800; }
pre { min-height: 130px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; margin: 18px 0 0; padding: 20px; border-radius: 8px; background: #030712; color: #d1fae5; font: 1rem/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; }
footer { padding: 28px 4px; color: var(--muted); }
a { color: var(--accent); text-underline-offset: 4px; }
@media (max-width: 640px) { main { padding-top: 30px; } form { grid-template-columns: 1fr; padding: 20px; } .field, .host-field, form > button { grid-column: 1; } .results-section { padding: 20px; } }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }