@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Myanmar:wght@400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0,0');

:root {
  --primary-color: #8B0000;    
  --primary-hover: #700000;    
  --accent-color: #B22222;     
  --bg-color: #f1f5f9;
  --text-dark: #1e293b;
  --text-muted: #64748b;
  --border-color: #cbd5e1;
  --card-shadow: 0 4px 15px rgba(139, 0, 0, 0.05);
  --font-main: 'Sarabun', 'Noto Sans Myanmar', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-main); background-color: var(--bg-color); color: var(--text-dark); -webkit-font-smoothing: antialiased; }

.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-theme { color: var(--primary-color); }
.text-muted { color: var(--text-muted); }
.fw-bold { font-weight: 700; }
.fs-1 { font-size: 2.25rem; }
.fs-5 { font-size: 1.25rem; }
.small { font-size: 0.85rem; }
.p-4 { padding: 1.5rem; }
.p-3 { padding: 1rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1.5rem; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.flex { display: flex; }
.flex-1 { flex: 1 1 0%; }
.flex-col { display: flex; flex-direction: column; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.items-center { align-items: center; }
.w-100 { width: 100%; }
.px-4 { padding-left: 1.5rem; padding-right: 1.5rem; }
.cursor-pointer { cursor: pointer; }
.block { display: block; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }

.app-container { max-width: 480px; margin: 0 auto; min-height: 100vh; background: #ffffff; box-shadow: 0 0 30px rgba(0,0,0,0.05); position: relative; }
.app-navbar { background: var(--primary-color); color: white; padding: 12px 16px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.app-content { padding: 16px; padding-bottom: 80px; }
.app-tabs { display: flex; background: #f8fafc; border-bottom: 1px solid var(--border-color); }
.tab-item { flex: 1; text-align: center; padding: 12px; font-size: 0.9rem; font-weight: 500; color: var(--text-muted); cursor: pointer; border-bottom: 3px solid transparent; }
.tab-item.active { color: var(--primary-color); border-bottom-color: var(--primary-color); font-weight: 700; background: #fff; }

.form-group { margin-bottom: 12px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 700; margin-bottom: 4px; color: #475569; }
.form-control, .form-select { width: 100%; padding: 10px 14px; font-size: 0.9rem; border: 1px solid var(--border-color); border-radius: 8px; outline: none; transition: border-color 0.2s; background-color: #f8fafc; font-family: var(--font-main); }
.form-control:focus, .form-select:focus { border-color: var(--primary-color); background-color: #fff; }
.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; font-weight: 500; font-size: 0.9rem; padding: 10px 16px; border: 1px solid transparent; cursor: pointer; transition: all 0.2s; font-family: var(--font-main); text-decoration: none; }
.btn-primary { background: var(--primary-color); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-light { background: #f1f5f9; color: #334155; border-color: #e2e8f0; }
.btn-light:hover { background: #e2e8f0; }
.btn-dark { background: #1e293b; color: white; }
.btn-dark:hover { background: #0f172a; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

.card-theme { background: #ffffff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 16px; margin-bottom: 16px; box-shadow: var(--card-shadow); }
.alert { border-radius: 8px; padding: 12px; font-size: 0.85rem; border: 1px solid transparent; }
.alert-warning { background-color: #fffbeb; border-color: #fde68a; color: #92400e; }
.alert-success { background-color: #f0fdf4; border-color: #bbf7d0; color: #166534; }

.signature-canvas-wrapper { width: 100%; background: #f8fafc; border: 2px dashed var(--border-color); border-radius: 8px; overflow: hidden; margin-top: 5px; height: 180px; position: relative; }
.signature-canvas-wrapper canvas { width: 100%; height: 100%; display: block; touch-action: none; cursor: crosshair; }
#qrcode-area { display: flex; justify-content: center; padding: 1rem; background: #fff; border-radius: 8px; margin: 10px 0; }

#loader { position: fixed; top:0; left:0; width:100vw; height:100vh; background:rgba(255,255,255,0.85); display:flex; align-items:center; justify-content:center; z-index: 9999; }
.loader-content { text-align: center; }
.spinner { width: 40px; height: 40px; border: 4px solid rgba(139,0,0,0.1); border-left-color: var(--primary-color); border-radius: 50%; animation: spin 1s linear infinite; margin: 0 auto; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

.receipt-card-box { background: #fff; border: 1px solid #cbd5e1; border-radius: 12px; padding: 1rem; }
.receipt-dashed-line { border-top: 2px dashed #cbd5e1; margin: 0.5rem 0; }
.receipt-detail-row { display: flex; justify-content: space-between; font-size: 13px; margin: 0.15rem 0; }

.table-container { width: 100%; overflow-x: auto; background: #ffffff; border-radius: 12px; border: 1px solid var(--border-color); padding: 6px; box-shadow: var(--card-shadow); }
.clean-table { width: 100%; border-collapse: collapse; }
.clean-table th { padding: 8px 10px; font-size: 0.8rem; color: var(--text-muted); font-weight: 700; text-transform: uppercase; border-bottom: 2px solid #f1f5f9; text-align: left; }
.clean-table td { padding: 12px 10px; font-size: 0.85rem; vertical-align: middle; border: none !important; }
.clean-table tbody tr:hover { background-color: #fafafa; }

.tx-badge { display: inline-block; padding: 4px 8px; font-size: 11px; font-weight: 700; border-radius: 6px; text-align: center; }
.tx-pending { background-color: #fef3c7; color: #d97706; }
.tx-shipping { background-color: #e0f2fe; color: #0284c7; }
.tx-success { background-color: #dcfce7; color: #16a34a; }
.tx-cancel { background-color: #ffeeee; color: #dc2626; }

.slip-upload-container {
  border: 2px dashed var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  background-color: #f8fafc;
  transition: all 0.25s ease-in-out;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: 120px;
}
.slip-upload-container:hover { border-color: var(--primary-color); background-color: #fff5f5; }
.slip-upload-container.has-file { border-style: solid; border-color: #10b981; background-color: #ffffff; }
.slip-upload-container .upload-icon { font-size: 2.5rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.slip-upload-container .upload-text { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
#slip-preview { max-width: 100%; max-height: 180px; object-fit: contain; margin-top: 8px; border-radius: 6px; }