.toolibee-pdf-editor {
    --tbpe-blue: #0057b8;
    --tbpe-navy: #003b7a;
    --tbpe-sky: #19b5f5;
    --tbpe-yellow: #ffd91a;
    --tbpe-gold: #f6b800;
    --tbpe-cream: #fff9df;
    --tbpe-dark: #082a4d;
    --tbpe-border: #b9d9f4;
    --tbpe-soft: #eef8ff;
    box-sizing: border-box;
    max-width: 1200px;
    margin: 24px auto;
    padding: 20px;
    color: var(--tbpe-dark);
    background: #ffffff;
    border: 1px solid var(--tbpe-border);
    border-radius: 22px;
    font-family: Arial, sans-serif;
    box-shadow: 0 12px 30px rgba(0, 87, 184, .10);
}
.toolibee-pdf-editor * { box-sizing: border-box; }
.tbpe-header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    padding: 20px;
    background: linear-gradient(135deg, #eef8ff 0%, #ffffff 52%, #fff3a8 100%);
    border-radius: 18px;
    border: 1px solid var(--tbpe-border);
    position: relative;
    overflow: hidden;
}
.tbpe-header:before {
    content: "🐝";
    position: absolute;
    right: 16px;
    bottom: -18px;
    font-size: 92px;
    opacity: .12;
    pointer-events: none;
}
.tbpe-header h2 { margin: 0 0 6px; font-size: 30px; color: var(--tbpe-navy); }
.tbpe-header p { margin: 0; color: #244d75; }
.tbpe-actions, .tbpe-toolbar, .tbpe-options { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.tbpe-button, .tbpe-tool {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 9px 15px;
    border: 1px solid var(--tbpe-blue);
    background: var(--tbpe-blue);
    color: #fff!important;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0, 87, 184, .16);
}
.tbpe-button:hover, .tbpe-tool:hover { opacity: .94; transform: translateY(-1px); }
.tbpe-button:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.tbpe-secondary { background: #fff; color: var(--tbpe-blue)!important; border-color: var(--tbpe-border); box-shadow: none; }
.tbpe-toolbar { margin: 16px 0 10px; padding: 12px; border: 1px solid var(--tbpe-border); border-radius: 16px; background: var(--tbpe-soft); }
.tbpe-tool { background: #fff; color: var(--tbpe-blue)!important; box-shadow: none; }
.tbpe-tool.active { background: var(--tbpe-yellow); color: var(--tbpe-navy)!important; border-color: var(--tbpe-gold); }
.tbpe-options { margin: 0 0 16px; padding: 10px 12px; background: #fff9df; border: 1px solid #ffe789; border-radius: 14px; }
.tbpe-options label { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; }
.tbpe-options input[type="number"] { width: 80px; }
.tbpe-status { margin-left: auto; font-size: 14px; color: #315b82; }
.tbpe-workspace-wrap { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 18px; }
.tbpe-help { border: 1px solid var(--tbpe-border); border-radius: 16px; padding: 14px; background: #ffffff; align-self: start; position: sticky; top: 20px; box-shadow: 0 6px 18px rgba(0, 87, 184, .08); }
.tbpe-help h3 { margin-top: 0; color: var(--tbpe-navy); }
.tbpe-help ol { padding-left: 20px; }
.tbpe-pages { min-height: 480px; padding: 18px; background: linear-gradient(180deg, #eef8ff, #ffffff); border: 1px dashed var(--tbpe-border); border-radius: 16px; overflow: auto; }
.tbpe-empty { padding: 60px 20px; text-align: center; color: #456b90; }
.tbpe-page-wrap { position: relative; margin: 0 auto 24px; width: fit-content; background: #fff; box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.tbpe-canvas { display: block; }
.tbpe-overlay { position: absolute; inset: 0; cursor: crosshair; }
.tbpe-item { position: absolute; min-width: 40px; min-height: 22px; border: 1px dashed transparent; cursor: move; user-select: none; }
.tbpe-item.selected { border-color: var(--tbpe-blue); background: rgba(25,181,245,.08); }
.tbpe-text-item { padding: 2px 4px; background: rgba(255,255,255,.68); white-space: pre-wrap; }
.tbpe-signature-item svg, .tbpe-signature-image { display: block; max-width: 260px; max-height: 140px; }
.tbpe-drawing-canvas { position: absolute; inset: 0; pointer-events: none; }
.tbpe-drawing .tbpe-drawing-canvas { pointer-events: auto; cursor: crosshair; }
.tbpe-page-label { position: absolute; top: -22px; left: 0; font-size: 12px; color: #315b82; }
@media (max-width: 800px) {
    .tbpe-header { align-items: flex-start; flex-direction: column; }
    .tbpe-workspace-wrap { grid-template-columns: 1fr; }
    .tbpe-help { position: static; }
    .tbpe-status { margin-left: 0; width: 100%; }
}