.qr-tool-wrapper { --p-bg: #ffffff; --p-border: #e2e8f0; --p-primary: #8b5cf6; --p-text: #0f172a; width: 100%; max-width: 900px; margin: 0 auto; background: var(--p-bg); border-radius: 24px; padding: 32px; border: 1px solid var(--p-border); box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05); }
.qr-header { font-size: 1.5rem; font-weight: 600; color: var(--p-text); margin-bottom: 8px; display: flex; align-items: center; gap: 12px; }
.qr-badge { background: #ede9fe; color: #5b21b6; padding: 4px 12px; border-radius: 30px; font-size: 0.8rem; font-weight: 500; }
.qr-subtitle { color: #64748b; font-size: 0.95rem; padding-bottom: 16px; border-bottom: 1px solid var(--p-border); margin-bottom: 24px; }

.qr-layout { display: grid; grid-template-columns: 1fr 350px; gap: 32px; }
@media(max-width: 768px) { 
    .qr-layout { grid-template-columns: 1fr; } 
    .qr-tool-wrapper { padding: 20px; border-radius: 16px; }
}

.qr-control-group { margin-bottom: 20px; }
.qr-control-group label { display: block; font-weight: 500; margin-bottom: 8px; color: var(--p-text); font-size: 0.95rem; }
.qr-textarea { width: 100%; height: 120px; padding: 12px; background: #f8fafc; border: 1px solid #cbd5e1; color: #0f172a; border-radius: 12px; outline: none; resize: vertical; transition: 0.2s; font-family: inherit; }
.qr-textarea:focus { border-color: var(--p-primary); box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1); background: #ffffff; }

.qr-settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.qr-select { width: 100%; padding: 10px; background: #f8fafc; border: 1px solid #cbd5e1; border-radius: 8px; outline: none; color: #0f172a; }
.qr-color-picker { width: 100%; height: 42px; padding: 2px; cursor: pointer; border-radius: 8px; border: 1px solid #cbd5e1; }

.qr-preview-box { border: 1px solid var(--p-border); border-radius: 16px; background: #f8fafc; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 32px 16px; }
.qr-canvas-container { background: #ffffff; padding: 16px; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); margin-bottom: 24px; transition: 0.3s; }
#qrCanvas { max-width: 100%; height: auto; }

.btn-primary { padding: 12px 24px; background: var(--p-primary); color: white; border: none; border-radius: 8px; cursor: pointer; font-weight: 600; transition: 0.2s; width: 100%; font-size: 1rem; display: flex; align-items: center; justify-content: center; gap: 8px;}
.btn-primary:hover { background: #7c3aed; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2); }

[data-theme="dark"] .qr-tool-wrapper { background: #1e293b !important; border-color: #334155 !important; }
[data-theme="dark"] .qr-header, [data-theme="dark"] .qr-control-group label { color: #f8fafc !important; }
[data-theme="dark"] .qr-textarea, [data-theme="dark"] .qr-select { background: #0f172a !important; border-color: #475569 !important; color: #f8fafc !important; }
[data-theme="dark"] .qr-preview-box { background: #0f172a !important; border-color: #334155 !important; }