/* Apprentice — admin login gate. Visual layout mirrors the Process IQ
   admin gate so the cross-product admin experience stays consistent.
   Names are scoped to .aa-* to avoid colliding with piq-* classes
   shipped from /process-iq/app/css/app.css. */

:root {
  --aa-bg:         #0f172a;
  --aa-surface:    #1e293b;
  --aa-surface-2:  #273449;
  --aa-border:     #334155;
  --aa-emerald:    #10b981;
  --aa-emerald-glow:rgba(16,185,129,0.18);
  --aa-amber:      #f59e0b;
  --aa-rose:       #f43f5e;
  --aa-text:       #f1f5f9;
  --aa-text-muted: #94a3b8;
  --aa-text-dim:   #64748b;
  --aa-radius:     0.875rem;
  --aa-radius-sm:  0.5rem;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: 'IBM Plex Sans', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--aa-bg);
  color: var(--aa-text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

body.aa-signin {
  background:
    radial-gradient(ellipse at top, var(--aa-surface), var(--aa-bg) 60%),
    var(--aa-bg);
  background-attachment: fixed;
}

.aa-trial-banner {
  background: var(--aa-emerald);
  color: var(--aa-bg);
  text-align: center;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.aa-signin-screen {
  min-height: calc(100vh - 2rem);
  align-items: stretch;
}

.aa-signin-card {
  width: 100%;
  max-width: 420px;
  padding: 2rem 1.75rem;
  background: var(--aa-surface);
  border: 1px solid var(--aa-border);
  border-radius: var(--aa-radius);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}

.aa-signin-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.25rem 0;
  letter-spacing: 0.12em;
}

.aa-signin-sub {
  font-size: 0.875rem;
  margin: 0;
  color: var(--aa-text-muted);
}

.aa-form { display: flex; flex-direction: column; gap: 0.875rem; }

.aa-form label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.375rem;
  color: var(--aa-text-muted);
}

.aa-input {
  width: 100%;
  padding: 0.625rem 0.75rem;
  background: var(--aa-bg);
  border: 1px solid var(--aa-border);
  border-radius: var(--aa-radius-sm);
  color: var(--aa-text);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: border-color 120ms, box-shadow 120ms;
  outline: none;
}

.aa-input:focus {
  border-color: var(--aa-emerald);
  box-shadow: 0 0 0 2px var(--aa-emerald-glow);
}

.aa-err {
  padding: 0.625rem 0.75rem;
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid var(--aa-rose);
  border-radius: var(--aa-radius-sm);
  font-size: 0.875rem;
  color: var(--aa-rose);
}

.aa-btn {
  display: inline-block;
  padding: 0.625rem 1rem;
  border-radius: var(--aa-radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 80ms, background 120ms, border-color 120ms;
}

.aa-btn:active { transform: scale(0.97); }
.aa-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.aa-btn-primary {
  background: var(--aa-emerald);
  color: var(--aa-bg);
  border-color: var(--aa-emerald);
}
.aa-btn-primary:hover { background: #0ea874; }

.aa-btn-ghost {
  background: transparent;
  border: none;
  color: var(--aa-text-muted);
}
.aa-btn-ghost:hover { color: var(--aa-text); }

.aa-btn-block { width: 100%; }

@media (max-width: 480px) {
  .aa-signin-card { padding: 1.5rem 1.25rem; }
}