/* ================================================================
   Auth screens — REFA Instrument styling (consumes app-theme.css tokens)
   ================================================================ */

.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--chrome);
  padding: 16px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
/* The card holds programmatic focus on the PIN step (physical-keyboard entry) — no focus ring. */
.auth-card:focus { outline: none; }

.auth-brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.auth-brand-name {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink);
}

.auth-brand-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.auth-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
}

.auth-hint  { margin: 0; font-size: 0.88rem; color: var(--ink-mut); }
.auth-error { margin: 0; font-size: 0.88rem; color: var(--bad); font-weight: 600; }

.auth-banner {
  margin: 0;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--warn) 15%, white);
  color: var(--ink);
  font-size: 0.88rem;
}

/* ── Cached-user tiles ─────────────────────────────────────────── */
.auth-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 10px;
}

.auth-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 14px 8px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  cursor: pointer;
  transition: border-color 0.15s;
}
.auth-tile:hover { border-color: var(--primary); }

.auth-tile-initial {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
}

.auth-tile-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
  text-align: center;
  word-break: break-word;
}

/* ── PIN pad ───────────────────────────────────────────────────── */
.auth-pin-display {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 6px 0;
}

.auth-pin-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--ink-mut);
}
.auth-pin-dot.optional { opacity: 0.45; }
.auth-pin-dot.filled   { background: var(--primary); border-color: var(--primary); opacity: 1; }

.auth-pad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.auth-pad-btn {
  height: 56px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.auth-pad-btn:active { background: var(--line); }
.auth-pad-btn:disabled { opacity: 0.4; cursor: default; }

.auth-pad-ok {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
}

.auth-pad-alt { font-size: 1.1rem; }

/* ── Full login form ───────────────────────────────────────────── */
.auth-form { display: flex; flex-direction: column; gap: 6px; }

.auth-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  margin-top: 6px;
}

.auth-input {
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font-ui);
  color: var(--ink);
  background: var(--card);
}
.auth-input:focus { outline: 2px solid var(--primary); outline-offset: -1px; }

.auth-form-actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 6px;
}

.auth-other, .auth-back { align-self: flex-start; }

/* ── AppNav user chip ──────────────────────────────────────────── */
.app-user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.82rem;
  font-weight: 600;
}

.app-user-logout {
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-sm);
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.78rem;
  padding: 4px 10px;
  cursor: pointer;
}
.app-user-logout:hover { border-color: rgba(255, 255, 255, 0.6); color: #fff; }