:root {
  --bg: #070b14;
  --panel: #0f172a;
  --border: #1e293b;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --danger: #ef4444;
  --success: #22c55e;
}
* { box-sizing: border-box; }
[hidden], .is-hidden, .fp-form[hidden], .fp-alert[hidden], .kb-card[hidden], .kb-workspace[hidden], .kb-error[hidden] { display: none !important; }
body.fp-logon-body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.08), transparent 50%), var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}
.fp-logon-main {
  width: 100%;
  max-width: 420px;
}
.fp-logon-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}
.fp-logon-brand {
  margin-bottom: 16px;
}
.fp-brand-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.fp-logon-card h1 {
  margin: 0 0 6px;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.fp-logon-sub {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 0.9rem;
}
.fp-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  background: var(--bg);
  padding: 4px;
  border-radius: 9px;
  border: 1px solid var(--border);
  margin-bottom: 18px;
}
.fp-tab {
  background: transparent;
  color: var(--muted);
  border: none;
  padding: 7px 8px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}
.fp-tab.is-active {
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}
.fp-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.fp-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.fp-field label {
  font-size: 0.82rem;
  font-weight: 600;
  color: #cbd5e1;
}
.fp-opt {
  font-weight: 400;
  color: var(--muted);
}
.fp-field input {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.92rem;
}
.fp-field input:focus {
  outline: none;
  border-color: var(--accent);
}
.fp-btn-primary {
  margin-top: 4px;
  background: var(--accent);
  color: #04101d;
  font-weight: 600;
  font-size: 0.92rem;
  border: none;
  border-radius: 8px;
  padding: 11px 16px;
  cursor: pointer;
}
.fp-btn-primary:hover {
  filter: brightness(1.06);
}
.fp-alert {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}
.fp-alert.is-error {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.4);
  color: #fecaca;
}
.fp-alert.is-ok {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.4);
  color: #bbf7d0;
}
.fp-logon-foot {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--muted);
}
.fp-logon-foot a {
  color: var(--muted);
  text-decoration: none;
}
.fp-logon-foot a:hover {
  color: var(--text);
}