:root {
  --bg: #050505; --bg-raised: #0c0c0c; --ink: #fafafa; --ink-dim: #a6a6a6;
  --ink-faint: #4a4a4a; --rule: #1f1f1f; --red: #fb2c36; --red-deep: #8f1820;
  --ok: #4ade80; --fail: #f87171;
  --sans: 'Inter', system-ui, sans-serif; --mono: 'JetBrains Mono', monospace;
  --serif: 'Fraunces', serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--ink); font-family: var(--sans); min-height: 100vh; -webkit-font-smoothing: antialiased; }
body::before {
  content: ''; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(ellipse 80% 50% at 50% -5%, rgba(251,44,54,0.08), transparent 60%);
}

nav {
  padding: 20px 32px; display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 11px; color: var(--ink-dim);
  letter-spacing: 0.08em; text-transform: uppercase; position: relative; z-index: 2;
  flex-wrap: wrap; gap: 8px;
}
nav .brand { color: var(--ink); font-weight: 500; }
nav .brand em { color: var(--red); font-style: normal; }
nav .breadcrumb { color: var(--ink-faint); }
nav .breadcrumb span { margin: 0 8px; }
nav .breadcrumb a { color: var(--ink-dim); text-decoration: none; }
nav .breadcrumb a:hover { color: var(--red); }

.opening { max-width: 760px; margin: 40px auto 40px; padding: 0 32px; position: relative; z-index: 2; }
.chapter {
  font-family: var(--mono); font-size: 11px; color: var(--red);
  letter-spacing: 0.25em; text-transform: uppercase; margin-bottom: 20px;
}
h1 {
  font-weight: 300; font-size: clamp(36px, 5vw, 56px);
  line-height: 0.95; letter-spacing: -0.03em; margin-bottom: 22px;
}
h1 em { font-family: var(--serif); font-style: italic; color: var(--red); font-weight: 300; }
.opening p { font-size: 15px; color: var(--ink-dim); line-height: 1.7; margin-bottom: 10px; }
.opening .disclaimer {
  margin-top: 18px; padding: 12px 16px; border-left: 2px solid #8b6914;
  background: rgba(251,191,36,0.05); font-size: 13px; color: var(--ink-dim);
}
.opening .disclaimer strong { color: #fbbf24; font-weight: 500; }

.layout {
  max-width: 1100px; margin: 0 auto 60px; padding: 0 32px;
  display: grid; grid-template-columns: minmax(300px, 380px) 1fr; gap: 28px;
  position: relative; z-index: 2;
}
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } }

form {
  background: var(--bg-raised); border: 1px solid var(--rule);
  border-radius: 10px; padding: 24px;
  align-self: start;
}
fieldset { border: none; margin-bottom: 20px; }
fieldset:last-of-type { margin-bottom: 0; }
legend {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--red); margin-bottom: 12px;
  padding-bottom: 6px; border-bottom: 1px solid var(--rule); width: 100%;
}
.field { margin-bottom: 12px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
label {
  display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-dim); margin-bottom: 4px;
}
input {
  width: 100%; background: #000; color: var(--ink);
  border: 1px solid var(--rule); border-radius: 6px;
  padding: 10px 12px; font-family: var(--mono); font-size: 13px;
}
input:focus { outline: none; border-color: var(--red); }

button[type="submit"] {
  width: 100%; background: var(--red); color: var(--bg); border: none;
  padding: 14px; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.15em; text-transform: uppercase; font-weight: 600;
  border-radius: 6px; cursor: pointer; margin-top: 8px;
  transition: opacity 0.15s;
}
button[type="submit"]:hover { opacity: 0.9; }

.results {
  background: var(--bg-raised); border: 1px solid var(--rule);
  border-radius: 10px; padding: 24px;
  min-height: 460px;
}
.results-empty {
  text-align: center; color: var(--ink-dim); font-style: italic;
  padding: 80px 20px; font-size: 13px; font-family: var(--serif);
}

.rs { margin-bottom: 24px; }
.rs:last-child { margin-bottom: 0; }
.rs h3 {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--red); margin-bottom: 12px;
  padding-bottom: 6px; border-bottom: 1px solid var(--rule);
}

.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 1px; background: var(--rule); border: 1px solid var(--rule);
  border-radius: 6px; overflow: hidden;
}
.cell { background: var(--bg); padding: 12px 14px; display: flex; flex-direction: column; gap: 4px; }
.k { font-family: var(--mono); font-size: 9px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--ink-dim); }
.v {
  font-family: var(--serif); font-size: 26px; font-weight: 300;
  color: var(--red); letter-spacing: -0.02em; line-height: 1;
}
.v u { font-family: var(--mono); font-size: 11px; color: var(--ink-dim); margin-left: 3px; text-decoration: none; }

table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--rule); }
th { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-dim); font-weight: 500; }
td { font-variant-numeric: tabular-nums; }
tr.fits-no td { color: var(--ink-faint); }
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 2px;
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase;
}
.badge.ok { background: rgba(74,222,128,0.15); color: var(--ok); }
.badge.no { background: rgba(248,113,113,0.15); color: var(--fail); }

.warn, .note {
  padding: 10px 14px; margin-bottom: 6px; border-radius: 4px;
  font-size: 12px; line-height: 1.6;
}
.warn { background: rgba(248,113,113,0.08); border-left: 2px solid var(--fail); color: var(--ink); }
.note { background: rgba(251,44,54,0.06); border-left: 2px solid var(--red-deep); color: var(--ink-dim); }
.dim { color: var(--ink-dim); font-style: italic; padding: 12px 0; }

footer {
  max-width: 1100px; margin: 0 auto; padding: 24px 32px 40px;
  border-top: 1px solid var(--rule);
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 10px; color: var(--ink-faint);
  letter-spacing: 0.08em; text-transform: uppercase;
  position: relative; z-index: 2;
}
footer a { color: var(--ink-dim); text-decoration: none; }
footer a:hover { color: var(--red); }