/* SDUI core: zones, text, stacks, buttons. Components loaded on demand bring their own sheet. */
.sdui-zone:empty { display: none; }
[data-sdui-overlay] { position: fixed; inset: auto 1rem 1rem auto; z-index: 40; max-width: 24rem; }
.sdui-text { margin: 0; line-height: 1.6; }
.sdui-tone-muted { color: #475569; }
.sdui-tone-brass { color: #8a6b2a; }
.sdui-stack { display: flex; flex-direction: column; gap: 0.75rem; }
.sdui-stack-row { flex-direction: row; align-items: center; }
.sdui-button {
  border: 1px solid #0b1f33; border-radius: 0.375rem; background: #fff; color: #0b1f33;
  padding: 0.375rem 0.875rem; font-size: 0.875rem; font-weight: 600; cursor: pointer;
}
.sdui-button:hover { background: #0b1f33; color: #fff; }
.sdui-button:focus-visible { outline: 2px solid #d8b26a; outline-offset: 2px; }
.sdui-toast, .sdui-banner {
  margin-top: 0.5rem; padding: 0.75rem 1rem; border-radius: 0.5rem; background: #fff;
  border: 1px solid #cbd5e1; box-shadow: 0 8px 24px rgba(11, 31, 51, 0.18); font-size: 0.875rem;
}
.sdui-toast.sdui-tone-brass, .sdui-banner.sdui-tone-brass { border-color: #d8b26a; color: #0b1f33; }
.sdui-banner-title { display: block; margin-bottom: 0.25rem; }
.sdui-banner-text { margin: 0 0 0.5rem; }
.sdui-banner-dismiss {
  border: 1px solid #0b1f33; border-radius: 0.375rem; background: #fff; color: #0b1f33;
  padding: 0.25rem 0.75rem; font-size: 0.8125rem; font-weight: 600; cursor: pointer;
}
.sdui-banner-dismiss:hover { background: #0b1f33; color: #fff; }