/* ── Overlay backdrop ────────────────────────────────────────── */
  .dps-overlay.svelte-1fs9mzf {
    position: fixed;
    inset: 0;
    background: color-mix(in srgb, var(--color-primary-600, #09192d) 38%, transparent);
    backdrop-filter: blur(1px);
    z-index: 50;
  }

  /* ── Panel shell (shared appearance only) ───────────────────── */
  .dps-panel.svelte-1fs9mzf {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--surface-1);
    border-left: 1px solid var(--surface-2);
    box-shadow: -18px 0 34px color-mix(in srgb, var(--color-primary-500, #1b2e47) 20%, transparent);
    font-family: var(--font-body);
    color: var(--text-primary);
  }

  /* Overlay mode: panel sits absolute inside the fixed backdrop */
  .dps-overlay.svelte-1fs9mzf .dps-panel:where(.svelte-1fs9mzf) {
    position: absolute;
    top: 0;
    right: 0;
    height: 100%;
  }

  /* Float mode — fills container by default */
  .dps-panel--float.svelte-1fs9mzf {
    position: relative;
    flex: 1;
    height: 100%;
    box-shadow: none;
  }

  /* Float mode — self-positioned with absolute insets */
  .dps-panel--positioned.svelte-1fs9mzf {
    position: absolute !important;
    flex: unset;
    height: auto; /* let top + bottom (or explicit height) determine size */
    border-radius: 10px;
    border: 1px solid var(--surface-2);
    box-shadow: 0 10px 28px color-mix(in srgb, var(--color-primary-500, #1b2e47) 24%, transparent);
    z-index: 101; /* float above 3D canvas and other content (above HelpPanel which is z-index 100) */
  }

  /* Float mode — hidden state (controlled by `open` prop) */
  .dps-panel--float.dps-hidden.svelte-1fs9mzf {
    display: none;
  }

  /* ── Loading overlay ─────────────────────────────────────────── */
  .dps-loading.svelte-1fs9mzf {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: color-mix(in srgb, var(--surface-1) 90%, transparent);
    z-index: 40;
  }

  .dps-loading-msg.svelte-1fs9mzf {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
  }

  /* ── Header ──────────────────────────────────────────────────── */
  .dps-header.svelte-1fs9mzf {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--surface-2);
    flex-shrink: 0;
  }

  .dps-header-info.svelte-1fs9mzf {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
    flex: 1;
    padding-right: 8px;
  }

  .dps-badge.svelte-1fs9mzf {
    display: inline-flex;
    align-self: flex-start;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid;
  }

  .dps-title.svelte-1fs9mzf {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    word-break: break-word;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
  }

  .dps-close.svelte-1fs9mzf {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: transparent;
    border: 1px solid var(--surface-2);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 150ms ease;
  }

  .dps-close.svelte-1fs9mzf:hover {
    background: rgba(63, 166, 209, 0.08);
    border-color: var(--color-secondary-500, #3fa6d1);
    color: var(--color-secondary-500, #3fa6d1);
  }

  /* ── Header button group ────────────────────────────────────── */
  .dps-header-btns.svelte-1fs9mzf {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
  }

  /* ── Pin button ──────────────────────────────────────────────── */
  .dps-pin.svelte-1fs9mzf {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: transparent;
    border: 1px solid var(--surface-2);
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    transition: all 150ms ease;
    transform: rotate(45deg); /* diagonal pin orientation */
  }

  .dps-pin.svelte-1fs9mzf:hover {
    background: rgba(63, 166, 209, 0.08);
    border-color: var(--color-secondary-500, #3fa6d1);
    color: var(--color-secondary-500, #3fa6d1);
  }

  .dps-pin--active.svelte-1fs9mzf {
    background: rgba(63, 166, 209, 0.12);
    border-color: var(--color-secondary-500, #3fa6d1);
    color: var(--color-secondary-500, #3fa6d1);
    transform: rotate(0deg); /* upright when pinned */
  }

  /* ── Scrollable body ─────────────────────────────────────────── */
  .dps-body.svelte-1fs9mzf {
    flex: 1;
    overflow-y: auto;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  /* ── Actions bar (pinned above footer) ───────────────────────── */
  .dps-actions.svelte-1fs9mzf {
    padding: 8px 16px;
    border-top: 1px solid var(--surface-2);
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    flex-shrink: 0;
  }

  /* ── Footer ──────────────────────────────────────────────────── */
  .dps-footer.svelte-1fs9mzf {
    padding: 12px 16px;
    border-top: 1px solid var(--surface-2);
    display: flex;
    gap: 8px;
    flex-shrink: 0;
  }

  .dps-footer-btn.svelte-1fs9mzf {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 8px;
    background: linear-gradient(
      135deg,
      var(--color-secondary-500, #3fa6d1),
      var(--color-primary-500, #1b2e47)
    );
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 150ms ease;
  }

  .dps-footer-btn.svelte-1fs9mzf:hover {
    opacity: 0.9;
    box-shadow: 0 0 16px rgba(63, 166, 209, 0.25);
  }

  /* ── Resize handles (float + resizable only) ─────────────────── */
  .dps-rh.svelte-1fs9mzf {
    position: absolute;
    background: transparent;
    border: none;
    padding: 0;
    z-index: 10;
    transition: background 150ms ease;
  }

  .dps-rh.svelte-1fs9mzf:hover,
  .dps-rh.svelte-1fs9mzf:active {
    background: color-mix(in srgb, var(--color-secondary-500, #3fa6d1) 30%, transparent);
  }

  .dps-rh--left.svelte-1fs9mzf {
    top: 0;
    left: 0;
    width: 8px;
    height: 100%;
    cursor: ew-resize;
    border-radius: 10px 0 0 10px;
  }

  .dps-rh--bottom.svelte-1fs9mzf {
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 8px;
    cursor: ns-resize;
    border-radius: 0 0 10px 10px;
  }

  .dps-rh--corner.svelte-1fs9mzf {
    bottom: 0;
    left: 0;
    width: 16px;
    height: 16px;
    cursor: sw-resize;
    border-radius: 0 0 0 10px;
  }