/* --- QR FRAME STYLES (DỨT ĐIỂM FIX LỖI 2 & 3) --- */
#mdqr_capture_area { display: inline-block; background: transparent; margin: 0 auto; text-align: center; }
#mdqr_frame_wrapper { display: inline-block; position: relative !important; background: transparent; box-sizing: border-box; transition: all 0.3s ease; padding: 5px; margin: 0 auto; }
#mdqr_canvas_container { display: block; line-height: 0; box-sizing: border-box; margin: 0 auto; }
#mdqr_canvas_container svg { width: 100% !important; height: auto !important; max-width: 260px !important; display: inline-block; margin: 0 auto; }
.mdqr-frame-text { display: none; font-family: 'Arial', sans-serif; font-weight: 800; text-align: center; white-space: nowrap; text-transform: uppercase; letter-spacing: 1px; line-height: 1.1; color: var(--frame-text); }

/* Dual-Line CTA styling */
.mdqr-main-text { display: block; font-size: 1.1em; }
.mdqr-sub-text { display: block; font-size: 0.65em; font-weight: 600; opacity: 0.9; margin-top: 2px; }

/* Frame 0: No Frame */
.mdqr-frame-none { padding: 0; }

/* Frame 1-8 Styles */
.mdqr-frame-bottom-bar { border: 6px solid var(--frame-color); padding: 15px 15px 0 15px; border-radius: 12px; overflow: hidden; }
.mdqr-frame-bottom-bar .mdqr-frame-bottom { display: block; background: var(--frame-color); color: var(--frame-text); padding: 10px 15px; margin: 10px -15px 0 -15px; font-size: 18px; }
.mdqr-frame-top-bar { border: 6px solid var(--frame-color); padding: 0 15px 15px 15px; border-radius: 12px; overflow: hidden; }
.mdqr-frame-top-bar .mdqr-frame-top { display: block; background: var(--frame-color); color: var(--frame-text); padding: 10px 15px; margin: 0 -15px 10px -15px; font-size: 18px; }
.mdqr-frame-badge-bottom { border: 5px solid var(--frame-color); padding: 15px 15px 20px 15px; border-radius: 16px; margin-bottom: 25px; }
.mdqr-frame-badge-bottom .mdqr-frame-bottom { display: inline-block; background: var(--frame-color); color: var(--frame-text); padding: 8px 25px; border-radius: 30px; position: absolute; bottom: -20px; left: 50%; transform: translateX(-50%); font-size: 16px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
.mdqr-frame-badge-top { border: 5px solid var(--frame-color); padding: 20px 15px 15px 15px; border-radius: 16px; margin-top: 25px; }
.mdqr-frame-badge-top .mdqr-frame-top { display: inline-block; background: var(--frame-color); color: var(--frame-text); padding: 8px 25px; border-radius: 30px; position: absolute; top: -20px; left: 50%; transform: translateX(-50%); font-size: 16px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
.mdqr-frame-speech { padding: 15px; border: 5px solid var(--frame-color); border-radius: 16px; margin-top: 55px; }
.mdqr-frame-speech .mdqr-frame-top { display: block; background: var(--frame-color); color: var(--frame-text); padding: 10px 15px; border-radius: 12px; position: absolute; top: -65px; left: 50%; transform: translateX(-50%); font-size: 16px; min-width: 120px; }
.mdqr-frame-speech .mdqr-frame-top::after { content: ''; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%); border-width: 10px 10px 0; border-style: solid; border-color: var(--frame-color) transparent transparent transparent; }
.mdqr-frame-text-bottom { padding: 10px; }
.mdqr-frame-text-bottom .mdqr-frame-bottom { display: block; color: var(--frame-text); padding-top: 15px; font-size: 22px; }
.mdqr-frame-text-top { padding: 10px; }
.mdqr-frame-text-top .mdqr-frame-top { display: block; color: var(--frame-text); padding-bottom: 15px; font-size: 22px; }
.mdqr-frame-shadow { padding: 20px 20px 0 20px; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.mdqr-frame-shadow .mdqr-frame-bottom { display: block; color: var(--frame-text); padding: 15px 0; font-size: 18px; border-top: 2px solid #f1f5f9; margin-top: 15px; }

/* Frame 9: Solid Block */
#mdqr_frame_wrapper.mdqr-frame-solid { background: var(--frame-color); border-radius: 12px; padding: 10px; }
#mdqr_frame_wrapper.mdqr-frame-solid #mdqr_canvas_container { background: #fff; padding: 10px; border-radius: 8px; display: block; line-height: 0; }
#mdqr_frame_wrapper.mdqr-frame-solid .mdqr-frame-bottom { display: block; color: var(--frame-text); padding: 15px 0 0 0; font-size: 18px; }

/* Frame 10: Elegant Outline */
.mdqr-frame-elegant { border: 1px solid var(--frame-color); padding: 20px 20px 5px 20px; outline: 1px solid var(--frame-color); outline-offset: 4px; margin: 5px; }
.mdqr-frame-elegant .mdqr-frame-bottom { display: block; color: var(--frame-text); padding: 15px 0; font-size: 16px; letter-spacing: 3px; }

/* --- CORE LAYOUT CSS --- */
.mdqr-layout-2col { display: flex; flex-wrap: wrap; gap: 40px; align-items: flex-start; max-width: 1100px; margin: 0 auto; font-family: -apple-system, BlinkMacSystemFont, sans-serif; }
.mdqr-options-col { flex: 1 1 55%; min-width: 300px; background: #fff; padding: 30px; border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.04); }
.mdqr-preview-col { flex: 1 1 35%; min-width: 300px; position: sticky; top: 100px; } 
.mdqr-sticky-panel { background: #fff; padding: 25px; border-radius: 12px; box-shadow: 0 15px 35px rgba(0,0,0,0.08); text-align: center; border: 1px solid #e2e8f0; }
.mdqr-preview-box { background: #f8fafc; border-radius: 10px; border: 2px dashed #cbd5e1; padding: 20px; text-align: center; margin-bottom: 20px; }

.mdqr-btn { display: inline-flex; align-items: center; justify-content: center; height: 48px; padding: 0 15px; border: none; border-radius: 6px; cursor: pointer; transition: all 0.2s; text-align: center; gap: 8px; width: 100%; font-weight: 700; font-size: 14px; box-sizing: border-box; }
.mdqr-btn-primary { background: #0066ff; color: #fff; }
.mdqr-btn-primary:hover { background: #0052cc; transform: translateY(-2px); }
.mdqr-btn-success { background: #10b981; color: #fff; }
.mdqr-options-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 20px; }
.mdqr-form-group label { display: block; font-weight: 600; margin-bottom: 8px; color: #444; font-size: 14px; }
.mdqr-input-text { width: 100%; padding: 14px; border: 1px solid #e1e5ea; border-radius: 6px; font-size: 15px; box-sizing: border-box; transition: border-color 0.2s; font-family: inherit;}
.mdqr-input-color { width: 100%; height: 42px; padding: 2px; border: 1px solid #e1e5ea; border-radius: 6px; cursor: pointer; }

.mdqr-tabs-wrapper { position: relative; margin-bottom: 25px; border-bottom: 2px solid #e2e8f0; padding-bottom: 15px; }
.mdqr-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.mdqr-tab-btn { flex: 1 1 calc(25% - 8px); min-width: 105px; justify-content: center; background: #f8fafc; border: 1px solid #e2e8f0; font-size: 14px; font-weight: 600; color: #64748b; cursor: pointer; padding: 10px 12px; border-radius: 8px; transition: all 0.2s; white-space: nowrap; display: flex; align-items: center; gap: 6px; margin: 0; }
.mdqr-tab-btn.active { background: #eff6ff; color: #0066ff; border-color: #bfdbfe; }

.mdqr-panel { display: none; animation: fadeIn 0.3s; }
.mdqr-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 768px) { .mdqr-preview-col { position: relative; top: 0; order: -1; margin-bottom: -10px; } .mdqr-layout-2col { gap: 20px; } .mdqr-tab-btn { flex: 1 1 calc(33.33% - 8px); } }

/* --- QR FRAME SELECTOR GRID UI --- */
.mdqr-frame-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(70px, 1fr)); gap: 10px; margin-bottom: 15px; }
.mdqr-frame-item { border: 2px solid #e2e8f0; border-radius: 8px; padding: 12px 5px; text-align: center; cursor: pointer; transition: 0.2s; background: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; }
.mdqr-frame-item:hover { border-color: #94a3b8; background: #f8fafc; }
.mdqr-frame-item.active { border-color: #0066ff; background: #eff6ff; box-shadow: 0 2px 8px rgba(0,102,255,0.15); }
.mdqr-frame-item span { font-size: 11px; color: #475569; font-weight: 600; line-height: 1.1; display: block; }
.mdqr-fi-icon { width: 26px; height: 26px; position: relative; box-sizing: border-box; }

/* Mini Icons for Frames */
.mdqr-fi-none { border: 2px dashed #cbd5e1; border-radius: 4px; }
.mdqr-fi-bottom-bar { border: 2px solid #3b82f6; border-bottom: 8px solid #3b82f6; border-radius: 4px; }
.mdqr-fi-top-bar { border: 2px solid #3b82f6; border-top: 8px solid #3b82f6; border-radius: 4px; }
.mdqr-fi-badge-bottom { border: 2px solid #3b82f6; border-radius: 4px; } .mdqr-fi-badge-bottom::after { content:''; position:absolute; bottom:-5px; left:3px; right:3px; height:6px; background:#3b82f6; border-radius:4px; }
.mdqr-fi-badge-top { border: 2px solid #3b82f6; border-radius: 4px; } .mdqr-fi-badge-top::after { content:''; position:absolute; top:-5px; left:3px; right:3px; height:6px; background:#3b82f6; border-radius:4px; }
.mdqr-fi-speech { border: 2px solid #3b82f6; border-radius: 4px; } .mdqr-fi-speech::after { content:''; position:absolute; top:-6px; left:3px; right:3px; height:6px; background:#3b82f6; border-radius:4px; } .mdqr-fi-speech::before { content:''; position:absolute; top:0; left:10px; border-width:3px 3px 0; border-style:solid; border-color:#3b82f6 transparent transparent transparent; }
.mdqr-fi-text-bottom { border: 2px dashed #e2e8f0; border-radius: 4px; } .mdqr-fi-text-bottom::after { content:''; position:absolute; bottom:-6px; left:2px; right:2px; height:3px; background:#475569; border-radius:2px; }
.mdqr-fi-text-top { border: 2px dashed #e2e8f0; border-radius: 4px; } .mdqr-fi-text-top::after { content:''; position:absolute; top:-6px; left:2px; right:2px; height:3px; background:#475569; border-radius:2px; }
.mdqr-fi-shadow { border: 1px solid #e2e8f0; background: #fff; box-shadow: 0 4px 6px rgba(0,0,0,0.15); border-radius: 4px; } .mdqr-fi-shadow::after { content:''; position:absolute; bottom:3px; left:4px; right:4px; height:2px; background:#e2e8f0; }
.mdqr-fi-solid { background: #3b82f6; border-radius: 4px; padding: 3px; } .mdqr-fi-solid::after { content:''; display:block; width:100%; height:100%; background:#fff; border-radius:2px; }
.mdqr-fi-elegant { border: 1px solid #3b82f6; outline: 1px solid #3b82f6; outline-offset: 2px; border-radius: 2px; margin: 3px; width: 20px; height: 20px; }