.card {
  background: rgba(255,255,255,.94);
  border: 1px solid rgba(217, 226, 241, .98);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-pad { padding: clamp(1rem, 2.4vw, 1.35rem); }
.lead-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.45rem, 3vw, 2.25rem);
  background:
    linear-gradient(135deg, rgba(54, 87, 227, .08), rgba(14, 116, 144, .05)),
    rgba(255,255,255,.94);
  border: 1px solid rgba(185, 200, 221, .9);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}
.lead-card::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0;
  width: 7px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.lead-card h1 { font-size: clamp(1.75rem, 4vw, 3.15rem); line-height: 1.08; margin-bottom: .85rem; max-width: 950px; }
.lead-card p { color: var(--muted-2); max-width: 76ch; font-size: 1.05rem; line-height: 1.8; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  color: var(--primary-strong);
  font-size: .78rem;
  font-weight: 950;
  letter-spacing: 0;
  text-transform: uppercase;
  margin-bottom: .35rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--muted-2);
  border-radius: 999px;
  padding: .34rem .78rem;
  font-size: .87rem;
  font-weight: 850;
  line-height: 1.2;
  white-space: nowrap;
}
.btn {
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
  font-weight: 900;
  padding: .88rem 1.15rem;
  border-radius: 14px;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease, border-color .15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  box-shadow: 0 12px 24px rgba(54, 87, 227, .20);
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 16px 30px rgba(54, 87, 227, .25); text-decoration: none; }
.btn:focus-visible, .password-toggle:focus-visible, .admin-tab:focus-visible, .config-summary-card:focus-visible, .brand:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible { outline: 3px solid rgba(54, 87, 227, .38); outline-offset: 3px; }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-secondary { background: #fff; color: var(--text); border-color: var(--line); box-shadow: var(--shadow-xs); }
.btn-secondary:hover { background: var(--surface-strong); border-color: var(--line-strong); box-shadow: var(--shadow-sm); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-strong)); color: #fff; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); box-shadow: none; }
.btn-small { padding: .52rem .78rem; font-size: .87rem; border-radius: 11px; box-shadow: none; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem; }
.form-field--full { grid-column: 1 / -1; }
.field-error { color: var(--danger); font-size: .88rem; margin-top: .38rem; font-weight: 750; }
.input-error { border-color: #f04438; background: var(--danger-soft); }
.alert {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--surface-strong);
}
.alert-danger { background: var(--danger-soft); color: var(--danger); border-color: #fda29b; }
.alert-success { background: var(--success-soft); color: var(--success); border-color: #75e0a7; }
.alert-warning { background: var(--warning-soft); color: var(--warning); border-color: #fedf89; }
.spinner {
  width: 1.2rem;
  height: 1.2rem;
  border: 3px solid rgba(255,255,255,.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
.boot-card .spinner { width: 2.15rem; height: 2.15rem; border-color: rgba(54, 87, 227, .16); border-top-color: var(--primary); }
@keyframes spin { to { transform: rotate(360deg); } }
.success-panel { text-align: center; display: grid; gap: 1rem; padding: 2rem; }
.success-icon { width: 68px; height: 68px; border-radius: 999px; display: grid; place-items: center; margin-inline: auto; background: var(--success-soft); color: var(--success); font-size: 2rem; font-weight: 950; border: 1px solid #75e0a7; }
.muted { color: var(--muted); }
.form-message { grid-column: 1 / -1; margin: 0; padding: .75rem .85rem; border-radius: 12px; font-weight: 850; }
.form-message--error { background: var(--danger-soft); color: var(--danger); border: 1px solid #fda29b; }
.form-message--success { background: var(--success-soft); color: var(--success); border: 1px solid #75e0a7; }
.form-message--info { background: var(--info-soft); color: var(--info); border: 1px solid #b2ddff; }