/* ===========================
   PC Supervisor Store Visit App
   Haier Brand: #004EA2
   =========================== */

:root {
  --primary: #004EA2;
  --primary-dark: #003b7e;
  --primary-light: #e8f0fa;
  --danger: #dc3545;
  --success: #28a745;
  --warning: #ffc107;
  --gray-50: #f8f9fa;
  --gray-100: #f0f2f5;
  --gray-200: #dee2e6;
  --gray-300: #ced4da;
  --gray-400: #adb5bd;
  --gray-500: #6c757d;
  --gray-600: #495057;
  --gray-700: #343a40;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius: 8px;
  --radius-sm: 4px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  color: var(--gray-700);
  background: var(--gray-100);
  -webkit-font-smoothing: antialiased;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
}

header .logo { flex-shrink: 0; }
header .header-title { flex: 1; font-size: 14px; font-weight: 500; opacity: 0.95; }
.header-btn { background: none; border: 1px solid rgba(255,255,255,0.3); color: white; padding: 4px 12px; border-radius: var(--radius-sm); cursor: pointer; font-size: 14px; }

/* Pages */
.page {
  display: none;
  padding-top: 56px; /* header height */
  min-height: 100vh;
}

.page.active { display: block; }

.page-content {
  padding: 16px;
  max-width: 800px;
  margin: 0 auto;
}

/* Loading overlay */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
.toast {
  position: fixed;
  top: 68px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  background: var(--gray-700);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  max-width: 90vw;
}

.toast.show { opacity: 1; }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* Landing card */
.landing-card {
  max-width: 420px;
  margin: 40px auto;
  background: white;
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.landing-card h2 { font-size: 18px; margin: 8px 0 4px; color: var(--primary); }

.landing-icon { margin-bottom: 8px; }

.subtitle {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.landing-links {
  margin-top: 20px;
  display: flex;
  justify-content: center;
  gap: 20px;
}

.landing-links a {
  color: var(--primary);
  font-size: 13px;
  text-decoration: none;
}

.landing-links a:hover { text-decoration: underline; }

.my-subs-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 4px;
}

/* Export modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-content {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}

.modal-content h3 { color: var(--primary); margin-bottom: 4px; }

.export-option {
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.export-selected-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  font-size: 13px;
}

/* Form elements */
.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 4px;
}

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border, var(--gray-200));
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: var(--font);
  color: var(--gray-700);
  outline: none;
  transition: border-color 0.2s;
  background: white;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(0, 78, 162, 0.15);
}

select { appearance: none; background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewbox='0 0 12 12'><path d='M3 4 l3 4 3-4' fil='%236c757d'/></svg>"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 30px; }

textarea { resize: vertical; min-height: 60px; }

.readonly-field { background: var(--gray--50); cursor: default; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
  text-decoration: none;
   gap: 6px;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }

.btn-outline { background: white; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }

.btn-lg { padding: 14px 24px; font-size: 16px; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-block { width: 100%; }
.btn-icon { background: none; border: none; color: var(--gray-500); cursor: pointer; font-size: 16px; padding: 4px; }

/* Radio & Checkbox */
.radio-group { display: flex; flex-wrap: wrap; gap: 8px; }
.radio-label { display: flex; align-items: center; gap: 4px; font-size: 13px; cursor: pointer; }
.radio-label input { width: auto; accent-color: var(--primary); }

.checkbox-group { display: flex; flex-wrap: wrap; gap: 8px; }
.checkbox-label { display: flex; align-items: center; gap: 4px; font-size: 13px; cursor: pointer; }
.checkbox-label input { width: auto; accent-color: var(--primary); }

.conditional-field { margin-top: 8px; }

/* Form section */
.form-section {
  background: white;
  border-radius: var(--radius);
  padding: 20px 16px;
  margin: 12px 16px;
  box-shadow: var(--shadow);
}

.section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary-light);
}

.section-subtitle {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-600);
  margin: 16px 0 8px;
}

/* Info bar */
.info-bar {
  background: var(--primary-light);
  color: var(--primary);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  margin: 0 16px 8px;
  border-radius: var(--radius);
}

/* Staff rows */
.staff-row { background: var(--gray-50); border-radius: var(--radius-sm); padding: 12px; margin-bottom: 8px; }
.staff-row-header { font-weight: 600; font-size: 14px; color: var(--primary); margin-bottom: 8px; }
.staf-fields { display: flex; gap: 8px; flex-wrap: wrap; }
.staf-field { flex: 1; min-width: 100px; }
.staf-field label { font-size: 12px; }
.staf-field input { padding: 8px; font-size: 14px; }
.staf-field-wide { flex: 2; min-width: 140px; }

/* Product count row */
.product-count-row { display: flex; gap: 8px; flex-wrap: wrap; }
.product-count-row span { display: flex; align-items: center; gap: 4px; font-size: 13px; }
.prod-input { width: 60px; padding: 6px 8px; text-align: center; }

/* Competitor Sales rows */
.competitor-sales-row { display: flex; gap: 6px; align-items: center; margin-bottom: 6px; flex-wrap: wrap; }
.competitor-sales-row input { flex: 1; min-width: 80px; padding: 6px 8px; font-size: 13px; }

/* Photo categories */
.photo-category {
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin-bottom: 12px;
}

.photo-category label { font-size: 13px; font-weight: 600; display: block; margin-bottom: 6px; }

.photo-category input[type="file"] {
  padding: 8px;
  font-size: 13px;
  border: 1px dashed var(--gray-300);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.photo-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.photo-preview .thumb {
  position: relative;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--gray-200);
}

.photo-preview .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-preview .thumb-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  background: var(--danger);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Form actions */
.form-actions {
  padding: 16px;
  position: sticky;
  bottom: 0;
  background: linear-gradient(transparent, var(--gray-100) 30%);
}

/* Confirmation page */
.confirmation-card {
  max-width: 400px;
  margin: 60px auto;
  background: white;
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.confirmation-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--success);
  color: white;
  font-size: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.confirmation-card h2 { color: var(--success); margin-bottom: 4px; }
.confirmation-card p { color: var(--gray-500); margin-bottom: 20px; }
.confirmation-details { font-size: 13px; color: var(--gray-600); margin-bottom: 20px; }

/* Submissions list */
.submissions-list .visit-item {
  background: white;
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 8px;
  box-shadow: var(--shadow);
  font-size: 14px;
}

.visit-item .visit-header { display: flex; justify-content: space-between; align-items: center; }
.visit-item .visit-store { font-weight: 600; }
.visit-item .visit-date { font-size: 12px; color: var(--gray-500); }
.visit-item .visit-status { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 10px; }
.status-pending { background: #fff3cd; color: #856404; }
.status-approved { background: #d4edda; color: #155724; }
.status-rejected { background: #f8d7da; color: #721c24; }
.visit-item .visit-review { font-size: 13px; color: var(--gray-600); margin-top: 4px; padding: 6px; background: var(--gray-50); border-radius: var(--radius-sm); }

/* Admin */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 16px; }
.stat-card { background: white; border-radius: var(--radius); padding: 12px; text-align: center; box-shadow: var(--shadow); }
.stat-card .stat-number { font-size: 24px; font-weight: 700; color: var(--primary); }
.stat-card .stat-label { font-size: 12px; color: var(--gray-500); margin-top: 2px; }

.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; align-items: center; }
.filter-bar select, .filter-bar input { padding: 6px 10px; font-size: 13px; flex: 1; min-width: 100px; }

.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--gray-200); white-space: nowrap; }
th { background: var(--gray-50); font-weight: 600; color: var(--gray-600); position: sticky; top: 0; }
tr:hover { background: var(--gray-50); }

.admin-tabs { display: flex; gap: 0; margin: 20px 0 0; border-bottom: 2px solid var(--gray-200); }
.tab-btn { padding: 10px 16px; background: none; border: none; cursor: pointer; font-size: 14px; color: var(--gray-500); border-bottom: 2px solid transparent; margin-bottom: -2px; }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.admin-tab-content { padding: 16px 0; }

.inline-form { display: flex; gap: 8px; margin-bottom: 12px; }
.inline-form input { flex: 1; }

/* Visit detail in admin */
.visit-detail-card { background: white; border-radius: var(--radius); padding: 16px; margin: 12px 0; box-shadow: var(--shadow); }
.visit-detail-card h3 { font-size: 16px; color: var(--primary); margin-bottom: 8px; padding-bottom: 6px; border-bottom: 1px solid var(--gray-100); }
.visit-detail-card .detail-row { display: flex; padding: 4px 0; font-size: 13px; }
.visit-detail-card .detail-label { width: 140px; flex-shrink: 0; color: var(--gray-500); }
.visit-detail-card .detail-value { flex: 1; }

.review-actions { display: flex; gap: 12px; margin-top: 16px; }

/* Responsive */
@media (max-width: 480px) {
  .form-section { margin: 8px 8px; padding: 16px 12px; }
  .product-count-row { gap: 4px; }
  .prod-input { width: 48px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .filter-bar { flex-direction: column; }
  .filter-bar select, .filter-bar input { width: 100%; }
}

/* Empty state */
.empty-state { text-align: center; color: var(--gray-400); padding: 40px 20px; font-size: 14px; }