:root{--primary: #1d4ed8;--primary-dark: #1e40af;--bg: #f3f4f6;--surface: #ffffff;--surface-2: #f3f4f6;--surface-3: #f9fafb;--border: #e5e7eb;--text: #111827;--text-muted: #6b7280;--text-muted-2: #9ca3af;--accent-soft: #e0e7ff;--success: #16a34a;--warning: #d97706;--danger: #dc2626;--sidebar-bg: #111827;--sidebar-border: #1f2937;--radius: 10px;--shadow-card: 0 1px 2px rgba(0, 0, 0, .04);--shadow-lift: 0 4px 12px rgba(0, 0, 0, .08)}[data-theme=dark]{--primary: #3b82f6;--primary-dark: #2563eb;--bg: #0f172a;--surface: #1e293b;--surface-2: #263349;--surface-3: #223047;--border: #334155;--text: #e2e8f0;--text-muted: #94a3b8;--text-muted-2: #64748b;--accent-soft: #1e3a5f;--success: #4ade80;--warning: #fbbf24;--danger: #f87171;--sidebar-bg: #0b1220;--sidebar-border: #1e293b;--shadow-card: 0 1px 2px rgba(0, 0, 0, .3);--shadow-lift: 0 4px 12px rgba(0, 0, 0, .45)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:Segoe 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(max-width:800px){.course-hero{align-items:flex-start;flex-direction:column}.course-kpis{grid-template-columns:1fr 1fr}.course-toolbar{align-items:stretch;flex-direction:column}.course-toolbar>.input{max-width:none}.course-lesson{grid-template-columns:60px 1fr}.lesson-actions{grid-column:2;flex-direction:row}.lesson-top{flex-direction:column}.course-form-grid{grid-template-columns:1fr}}.wa-page{max-width:1500px;margin:0 auto}.wa-page-header{margin-bottom:14px}.wa-page-header>div:first-child{display:flex;flex-direction:column;gap:4px}.wa-subtitle{color:var(--text-muted);font-size:12.5px}.wa-setup-notice{margin-bottom:12px;padding:11px 14px;border:1px solid #f59e0b55;border-radius:10px;background:#fffbeb;color:#92400e;font-size:13px}[data-theme=dark] .wa-setup-notice{background:#3d2c12;color:#fbbf24}.wa-shell{direction:ltr;display:grid;grid-template-columns:280px minmax(420px,1fr) 310px;height:calc(100vh - 175px);min-height:580px;overflow:hidden;border:1px solid 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select{margin-top:3px;font-size:12px}.wa-crm-link{display:block;margin-top:16px;text-align:center}.wa-chat-panel{display:flex;flex-direction:column;background:color-mix(in srgb,var(--surface-2) 65%,#dcfce7 35%)}.wa-chat-header{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:68px;padding:12px 18px;border-bottom:1px solid var(--border);background:var(--surface)}.wa-chat-header>div{display:flex;flex-direction:column;gap:3px}.wa-chat-header span[dir=ltr]{color:var(--text-muted);font-size:11.5px}.wa-messages{flex:1;overflow-y:auto;padding:22px}.wa-message-row{display:flex;margin:7px 0}.wa-message-row.inbound{justify-content:flex-end}.wa-message-row.outbound{justify-content:flex-start}.wa-message-bubble{max-width:min(72%,620px);padding:9px 12px 6px;border:1px solid var(--border);border-radius:12px;background:var(--surface);font-size:13.5px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;box-shadow:0 1px 2px #0000000d}.wa-message-row.inbound 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