:root {
  --bg-primary: #0b0f0e;
  --bg-secondary: #131a18;
  --bg-tertiary: #1e2926;
  --text-primary: #e8edeb;
  --text-secondary: #aebcb6;
  --text-muted: #7c8b85;
  --primary: #f2a33c;
  --primary-hover: #ffb352;
  --primary-light: rgba(242, 163, 60, 0.12);
  --on-primary: #1a1206;
  --border-color: #283531;
  --tick: rgba(242, 163, 60, 0.55);
  --phosphor: #46c98b;
  --danger: #ef4444;
  --font-display: "IBM Plex Sans Condensed", "Arial Narrow", system-ui, sans-serif;
  --font-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "Cascadia Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { min-height: 100%; background: var(--bg-primary); }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text-primary);
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  background-image:
    linear-gradient(transparent 0 31px, rgba(255, 255, 255, 0.018) 31px 32px),
    linear-gradient(90deg, transparent 0 31px, rgba(255, 255, 255, 0.018) 31px 32px),
    radial-gradient(circle at 50% 35%, rgba(70, 201, 139, 0.035), transparent 42%);
  background-size: 32px 32px, 32px 32px, auto;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
  background:
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.14) 0 1px, transparent 1px 3px),
    radial-gradient(ellipse 120% 90% at 50% 40%, transparent 58%, rgba(0, 0, 0, 0.42));
}

button, input { font: inherit; }

button:focus-visible, input:focus-visible, a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(100% - 32px, 680px);
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  align-content: center;
  gap: 18px;
  padding: 32px 0;
}

.finder-panel {
  position: relative;
  padding: clamp(24px, 5vw, 42px);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: rgba(19, 26, 24, 0.92);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.42);
}

.reg::after {
  content: "";
  position: absolute;
  inset: -1px;
  pointer-events: none;
  background:
    linear-gradient(var(--tick), var(--tick)) 0 0 / 15px 1.5px no-repeat,
    linear-gradient(var(--tick), var(--tick)) 0 0 / 1.5px 15px no-repeat,
    linear-gradient(var(--tick), var(--tick)) 100% 0 / 15px 1.5px no-repeat,
    linear-gradient(var(--tick), var(--tick)) 100% 0 / 1.5px 15px no-repeat,
    linear-gradient(var(--tick), var(--tick)) 0 100% / 15px 1.5px no-repeat,
    linear-gradient(var(--tick), var(--tick)) 0 100% / 1.5px 15px no-repeat,
    linear-gradient(var(--tick), var(--tick)) 100% 100% / 15px 1.5px no-repeat,
    linear-gradient(var(--tick), var(--tick)) 100% 100% / 1.5px 15px no-repeat;
}

.brand-row { display: flex; align-items: center; gap: 15px; margin-bottom: 34px; }

.radar {
  width: 54px;
  height: 54px;
  flex: none;
  fill: none;
  stroke: var(--border-color);
  stroke-width: 1;
}

.radar-sweep { transform-box: view-box; transform-origin: 50% 50%; animation: sweep 4s linear infinite; }
.sweep-tail { fill: var(--primary-light); stroke: none; }
.sweep-line { stroke: var(--primary); stroke-width: 1.5; }
.contact { fill: var(--phosphor); stroke: none; filter: drop-shadow(0 0 4px var(--phosphor)); animation: contact 4s linear infinite; }

@keyframes sweep { to { transform: rotate(360deg); } }
@keyframes contact { 0%, 48% { opacity: 0; } 50% { opacity: 1; } 82%, 100% { opacity: 0; } }

.wordmark {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.09em;
}

.brand-subtitle, .data-label, footer {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.13em;
}

.brand-subtitle { margin-top: 3px; }

.section-head { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.eyebrow { color: var(--text-secondary); font-family: var(--font-display); font-size: 11px; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; }
.eyebrow::before { content: ""; display: inline-block; margin-right: 9px; border-width: 4px 0 4px 6px; border-style: solid; border-color: transparent transparent transparent var(--primary); }
.sysid { padding: 3px 7px; color: var(--primary); border: 1px solid var(--tick); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; }
.section-rule { height: 1px; flex: 1; background: var(--border-color); }

h1 { margin: 0; font-family: var(--font-display); font-size: clamp(27px, 5vw, 36px); line-height: 1.05; letter-spacing: 0.01em; }
.intro { max-width: 560px; margin: 15px 0 30px; color: var(--text-secondary); font-size: 14px; line-height: 1.65; }

label { display: block; margin-bottom: 8px; color: var(--text-secondary); font-size: 13px; font-weight: 600; }
.input-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }

input {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 3px;
  background: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: 14px;
}

input::placeholder { color: var(--text-muted); }
input[aria-invalid="true"] { border-color: var(--danger); }

.btn {
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 3px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.btn-primary { color: var(--on-primary); background: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { color: var(--text-secondary); border-color: var(--border-color); background: var(--bg-tertiary); }
.btn-secondary:hover { color: var(--text-primary); border-color: var(--tick); }

.field-help, .field-error { min-height: 18px; margin: 8px 0 0; font-size: 12px; }
.field-help { color: var(--text-muted); }
.field-error { color: var(--danger); }
.data, .data-value { font-family: var(--font-mono); font-feature-settings: "tnum" 1; }

.saved-tenant {
  margin-bottom: 24px;
  padding: 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
}

.saved-tenant:not([hidden]) { display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; }
.saved-tenant .data-label { display: block; margin-bottom: 5px; text-transform: uppercase; }
.data-value { color: var(--primary); font-size: 15px; }
.saved-actions { display: flex; gap: 8px; }
.redirect-status { grid-column: 1 / -1; min-height: 17px; margin: 0; color: var(--text-muted); font-family: var(--font-mono); font-size: 11px; }

.network-note {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--border-color);
}

.status-led { width: 7px; height: 7px; flex: none; margin-top: 5px; border-radius: 50%; background: var(--phosphor); box-shadow: 0 0 7px rgba(70, 201, 139, 0.55); }
.network-note strong, .network-note span { display: block; }
.network-note strong { color: var(--text-secondary); font-size: 12px; }
.network-note span { margin-top: 3px; color: var(--text-muted); font-size: 11px; line-height: 1.5; }

footer { display: flex; align-items: center; justify-content: center; gap: 10px; }
.footer-divider { width: 24px; height: 1px; background: var(--border-color); }
footer a { color: var(--text-muted); text-underline-offset: 3px; }
footer a:hover { color: var(--primary); }

@media (max-width: 560px) {
  .shell { width: min(100% - 20px, 680px); padding: 10px 0 18px; }
  .finder-panel { padding: 23px 18px; }
  .brand-row { margin-bottom: 27px; }
  .radar { width: 46px; height: 46px; }
  .input-row { grid-template-columns: 1fr; }
  .saved-tenant:not([hidden]) { grid-template-columns: 1fr; }
  .saved-actions .btn { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .radar-sweep, .contact { animation: none; }
  .contact { opacity: 1; }
  *, *::before, *::after { scroll-behavior: auto !important; }
}