/* Shared Login UI (Admin/Agent/Chat/KPI) — presentation only */
:root {
  --login-primary: #1890ff;
  --login-primary-dark: #096dd9;
  --login-danger: #ff4d4f;
  --login-card-bg: #fff;
  --login-text: #333;
  --login-subtext: #999;
  --login-border: #d9d9d9;
  --login-shadow: 0 20px 60px rgba(0,0,0,.2);
  --login-radius: 12px;
}

html[data-theme="dark"] {
  --login-card-bg: #111827;
  --login-text: #e5e7eb;
  --login-subtext: #9ca3af;
  --login-border: #374151;
  --login-shadow: 0 20px 60px rgba(0,0,0,.45);
}

.ui-login-screen {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.ui-login-card {
  background: var(--login-card-bg);
  border-radius: var(--login-radius);
  padding: 40px;
  width: min(360px, 100%);
  box-shadow: var(--login-shadow);
}

.ui-login-brand {
  text-align: center;
  margin-bottom: 18px;
}

.ui-login-brand img {
  height: 44px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
}

.ui-login-title {
  text-align: center;
  margin-bottom: 8px;
  color: var(--login-text);
  font-size: 20px;
  font-weight: 700;
}

.ui-login-subtitle {
  text-align: center;
  color: var(--login-subtext);
  font-size: 13px;
  margin-bottom: 18px;
}

.ui-login-meta {
  text-align: center;
  color: #bbb;
  font-size: 11px;
  margin: -10px 0 10px 0;
}

.ui-login-err {
  color: var(--login-danger);
  font-size: 13px;
  text-align: center;
  min-height: 20px;
  margin-bottom: 8px;
}

.ui-login-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--login-border);
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 12px;
  outline: none;
  transition: border .2s, box-shadow .2s;
  background: transparent;
  color: var(--login-text);
}

.ui-login-input:focus {
  border-color: var(--login-primary);
  box-shadow: 0 0 0 2px rgba(24,144,255,.12);
}

.ui-login-btn {
  width: 100%;
  padding: 10px;
  background: var(--login-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: background .2s, opacity .2s;
}

.ui-login-btn:hover { background: var(--login-primary-dark); }
.ui-login-btn:disabled { opacity: .6; cursor: not-allowed; }

.ui-login-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 12px;
  color: #666;
}

html[data-theme="dark"] .ui-login-row { color: #cbd5e1; }

.ui-login-row label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  min-width: 0;
}
.ui-login-row label input[type=checkbox] { margin: 0; flex: 0 0 auto; }
.ui-login-row a { color: var(--login-primary); text-decoration: none; white-space: nowrap; }
.ui-login-row a:hover { text-decoration: underline; }

@media (max-width: 420px) {
  .ui-login-card { padding: 28px 20px; }
}