@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --primary: #bb0013;
  --primary-dark: #930010;
  --primary-light: #e71520;
  --surface: #ffffff;
  --surface-dim: #f5f5f5;
  --surface-container: #eeeeee;
  --surface-container-low: #fafafa;
  --on-surface: #1a1a1a;
  --on-surface-variant: #555555;
  --secondary: #5d5e61;
  --secondary-container: #e2e2e5;
  --outline: #8a8a8a;
  --outline-variant: #d4d4d4;
  --error: #ba1a1a;
  --error-container: #fde8e8;
  --success: #16a34a;
  --success-container: #e8f5e8;
  --info: #006193;
  --info-container: #e0f0ff;
}

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

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  text-decoration: none !important;
  border-bottom: none !important;
}

body {
  font-family: 'Noto Sans Thai', sans-serif;
  background: var(--surface-dim);
  color: var(--on-surface);
  min-height: 100vh;
}

.custom-scrollbar::-webkit-scrollbar { width: 4px; }
.custom-scrollbar::-webkit-scrollbar-track { background: transparent; }
.custom-scrollbar::-webkit-scrollbar-thumb { background: var(--outline-variant); border-radius: 10px; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(187, 0, 19, 0.1);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 700;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Noto Sans Thai', sans-serif;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(187,0,19,0.2); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-secondary {
  background: var(--secondary-container);
  color: var(--secondary);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Noto Sans Thai', sans-serif;
}
.btn-secondary:hover { background: #d4d4d7; }

.card {
  background: var(--surface);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.badge-error { background: var(--error-container); color: var(--error); }
.badge-success { background: var(--success-container); color: var(--success); }
.badge-info { background: var(--info-container); color: var(--info); }
.badge-neutral { background: var(--secondary-container); color: var(--secondary); }

.sidebar {
  position: fixed;
  left: 0; top: 0;
  width: 16rem;
  height: 100vh;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  padding: 2rem 0;
  z-index: 50;
  border-right: 1px solid var(--outline-variant);
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1.5rem;
  margin-bottom: 2.5rem;
}
.sidebar-brand-icon {
  width: 2.5rem; height: 2.5rem;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
}
.sidebar-nav { flex: 1; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  color: var(--secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s;
}
.sidebar-nav a:hover { background: var(--surface-dim); }
.sidebar-nav a.active {
  background: rgba(187,0,19,0.06);
  color: var(--primary);
  border-right: 4px solid var(--primary);
  font-weight: 700;
}
.sidebar-footer {
  padding: 0 1.5rem;
  border-top: 1px solid var(--outline-variant);
  padding-top: 1rem;
}

.main-content {
  margin-left: 16rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.top-bar {
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 40;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--outline-variant);
}
.content-area { padding: 1.25rem 1.5rem; flex: 1; display: flex; flex-direction: column; gap: 1rem; }

.stat-card {
  background: var(--surface);
  padding: 1rem;
  border-radius: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.stat-card .stat-label {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--secondary);
}
.stat-card .stat-value {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.stat-card.accent {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
}
.stat-card.accent .stat-label { color: rgba(255,255,255,0.7); }

.data-table {
  width: 100%;
  text-align: left;
  border-collapse: collapse;
  table-layout: auto;
}
.data-table thead { background: var(--surface-dim); }
.data-table th {
  padding: 0.75rem 1rem;
  font-size: 0.625rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--secondary);
  white-space: nowrap;
}
.data-table td {
  padding: 0.625rem 1rem;
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--surface-dim);
  vertical-align: middle;
}
.data-table tbody tr { transition: background 0.15s; }
.data-table tbody tr:hover { background: var(--surface-container-low); }
.data-table .col-doc { white-space: nowrap; font-weight: 700; font-size: 0.75rem; }
.data-table .col-date { white-space: nowrap; font-size: 0.75rem; }
.data-table .col-company { min-width: 140px; max-width: 200px; font-size: 0.8125rem; }
.data-table .col-branch { font-size: 0.6875rem; color: var(--secondary); max-width: 150px; }
.data-table .col-fc { white-space: nowrap; }
.data-table .col-owner { white-space: nowrap; font-size: 0.8125rem; }
.data-table .col-product { white-space: nowrap; font-size: 0.75rem; }
.data-table .col-qty { white-space: nowrap; font-weight: 600; font-size: 0.8125rem; }
.data-table .col-slip { white-space: nowrap; }
.data-table .col-status { white-space: nowrap; }
.data-table .col-action { white-space: nowrap; text-align: center; }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
  background: var(--surface);
  border-radius: 1rem;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  transform: scale(0.95);
  transition: transform 0.3s;
}
.modal-overlay.active .modal { transform: scale(1); }

.drop-zone {
  border: 2px dashed var(--outline-variant);
  border-radius: 1rem;
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--surface-dim);
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--primary);
  background: rgba(187,0,19,0.03);
}
.drop-zone img {
  max-width: 100%;
  max-height: 300px;
  border-radius: 0.5rem;
  margin-top: 1rem;
}

.ocr-result {
  background: var(--surface-dim);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin-top: 1rem;
}
.ocr-result .amount {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
}

.loading-spinner {
  display: inline-block;
  width: 1.25rem; height: 1.25rem;
  border: 2px solid var(--outline-variant);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 250;
  padding: 1rem 1.5rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s;
  pointer-events: none;
}
.toast.show { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
.toast.success { background: var(--success); color: #fff; }
.toast.error { background: var(--error); color: #fff; }

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--surface-dim) 0%, #e8e8e8 100%);
}
.login-card {
  background: var(--surface);
  border-radius: 1.5rem;
  padding: 3rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.08);
}
.login-card .logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  justify-content: center;
}
.login-card .logo-icon {
  width: 3rem; height: 3rem;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
}
.login-card h1 {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 0.25rem;
}
.login-card .subtitle {
  text-align: center;
  color: var(--secondary);
  font-size: 0.8125rem;
  margin-bottom: 2rem;
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-bottom: 0.5rem;
}
.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--outline-variant);
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-family: 'Noto Sans Thai', sans-serif;
  background: var(--surface-dim);
  transition: all 0.2s;
}
.form-group .error-msg {
  color: var(--error);
  font-size: 0.75rem;
  margin-top: 0.25rem;
  display: none;
}

.editable-wrap {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.editable-cell {
  cursor: text;
  padding: 0.375rem 0.5rem;
  border-radius: 0.375rem;
  min-width: 80px;
  border: 1.5px solid var(--outline-variant);
  background: var(--surface);
  transition: all 0.2s;
  font-size: 0.8125rem;
  font-family: 'Noto Sans Thai', sans-serif;
}
.editable-cell:hover { border-color: var(--secondary); }
.editable-cell:focus {
  background: var(--surface);
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(187,0,19,0.1);
  outline: none;
}
.editable-cell:empty::before {
  content: attr(data-placeholder);
  color: var(--outline);
  font-style: italic;
  font-size: 0.75rem;
}
.save-cell-btn {
  display: none;
  padding: 0.25rem 0.5rem;
  border: none;
  border-radius: 0.25rem;
  background: var(--primary);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  font-family: 'Noto Sans Thai', sans-serif;
  transition: opacity 0.2s;
}
.save-cell-btn:hover { opacity: 0.85; }
.save-cell-btn.show { display: inline-flex; align-items: center; gap: 0.125rem; }

.orders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 0.75rem;
}
.order-card {
  background: var(--surface);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  transition: box-shadow 0.2s;
}
.order-card:hover { box-shadow: 0 3px 12px rgba(0,0,0,0.07); }
.order-card.my-fc { border-left: 3px solid var(--primary); }
.order-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 0.625rem 0.875rem;
  background: var(--surface-dim);
  gap: 0.75rem;
}
.order-card-header .doc-info {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--on-surface);
}
.order-card-header .doc-date {
  font-size: 0.625rem;
  color: var(--secondary);
}
.order-card-header .fc-info {
  text-align: right;
  flex-shrink: 0;
}
.order-card-header .fc-owner {
  font-size: 0.625rem;
  color: var(--secondary);
}
.order-card-body { padding: 0.75rem 0.875rem; }
.order-card-company {
  font-weight: 700;
  font-size: 0.8125rem;
  color: var(--on-surface);
  margin-bottom: 0.125rem;
}
.order-card-product {
  font-size: 0.6875rem;
  color: var(--secondary);
}
.order-card-credit {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
  margin: 0.625rem 0;
}
.credit-box {
  background: var(--surface-dim);
  border-radius: 0.375rem;
  padding: 0.375rem 0.5rem;
  text-align: center;
}
.credit-box .credit-label {
  font-size: 0.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--secondary);
  margin-bottom: 0.125rem;
}
.credit-box .credit-value {
  font-size: 0.875rem;
  font-weight: 900;
  color: var(--on-surface);
}
.credit-box.paid .credit-value { color: var(--info); }
.credit-box.remaining .credit-value-positive { color: var(--error); }
.credit-box.remaining .credit-value-zero { color: var(--success); }
.credit-box.editable {
  background: var(--surface);
  border: 1.5px solid var(--outline-variant);
  cursor: text;
}
.order-card-meta {
  display: flex;
  gap: 0.375rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.order-card-admin {
  display: flex;
  gap: 0.375rem;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--surface-dim);
}
.order-card-admin .admin-field { flex: 1; min-width: 80px; }
.order-card-admin .admin-field label {
  display: block;
  font-size: 0.5625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--secondary);
  margin-bottom: 0.125rem;
}
.order-card-admin .admin-field .editable-cell {
  width: 100%;
  min-width: auto;
  padding: 0.25rem 0.375rem;
  font-size: 0.75rem;
}
.order-card-footer {
  padding: 0.5rem 0.875rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.375rem;
  border-top: 1px solid var(--surface-dim);
}

/* ===== Mobile Top Bar ===== */
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--outline-variant);
  padding: 0 1rem;
  align-items: center;
  justify-content: space-between;
  z-index: 60;
}
.mobile-topbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}


/* ===== Mobile Bottom Nav ===== */
.mobile-bottomnav {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 60;
}
.mobile-bottomnav-inner {
  display: flex;
  justify-content: space-around;
  align-items: center;
  background: rgba(255,255,255,0.85) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 8px 0;
  padding-bottom: calc(8px + env(safe-area-inset-bottom));
  border-top: 1px solid rgba(0,0,0,0.08);
}
.m-tab {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #666;
  font-size: 10px;
  font-weight: 600;
  font-family: 'Noto Sans Thai', sans-serif;
  cursor: pointer;
  padding: 4px 0;
  background: transparent;
}
.m-tab svg { margin-bottom: 2px; }
.m-tab.active { color: var(--primary); }
.m-tab:active { opacity: 0.6; }

/* ===== Mobile Responsive ===== */
@media (max-width: 768px) {
  .sidebar { display: none !important; }
  .top-bar { display: none !important; }
  .main-content { margin-left: 0; }

  body { background: #f5f5f5 !important; }
  .mobile-topbar { display: flex; }
  .mobile-bottomnav { display: block; }

  .content-area {
    padding: 0.75rem;
    padding-top: 0.75rem;
    padding-bottom: 4.5rem;
    margin-top: 3.25rem;
    gap: 0.75rem;
  }

  /* Stats 2x2 grid */
  .content-area > div:first-child {
    grid-template-columns: 1fr 1fr !important;
    gap: 0.5rem !important;
  }
  .stat-card {
    padding: 0.75rem;
    border-radius: 0.625rem;
  }
  .stat-card .stat-label { font-size: 0.5625rem; }
  .stat-card .stat-value { font-size: 1.25rem; }

  /* Filter bar */
  .filter-btn { font-size: 0.6875rem; padding: 0.3rem 0.625rem; }
  #searchInput { width: 100% !important; font-size: 0.8125rem; }

  /* Cards - full width, compact */
  .orders-grid {
    grid-template-columns: 1fr !important;
    gap: 0.625rem;
  }
  .order-card { border-radius: 0.625rem; }
  .order-card-header { padding: 0.5rem 0.75rem; }
  .order-card-header .doc-info { font-size: 0.6875rem; }
  .order-card-header .doc-date { font-size: 0.5625rem; }
  .order-card-header .fc-owner { font-size: 0.5625rem; }
  .order-card-body { padding: 0.625rem 0.75rem; }
  .order-card-company { font-size: 0.75rem; }
  .order-card-product { font-size: 0.625rem; }

  /* Credit boxes compact */
  .order-card-credit { gap: 0.375rem; margin: 0.5rem 0; }
  .credit-box { padding: 0.3rem 0.375rem; border-radius: 0.3rem; }
  .credit-box .credit-label { font-size: 0.4375rem; }
  .credit-box .credit-value { font-size: 0.75rem; }
  .credit-box .editable-cell { font-size: 0.75rem !important; }

  .order-card-meta { gap: 0.25rem; margin-bottom: 0.375rem; }
  .order-card-meta .badge { font-size: 0.5625rem; padding: 0.125rem 0.5rem; }

  /* Admin fields compact */
  .order-card-admin { gap: 0.25rem; margin-top: 0.375rem; padding-top: 0.375rem; }
  .order-card-admin .admin-field label { font-size: 0.5rem; }
  .order-card-admin .admin-field .editable-cell { font-size: 0.6875rem; padding: 0.2rem 0.3rem; }
  .save-cell-btn { font-size: 0.5625rem; padding: 0.2rem 0.375rem; }

  .order-card-footer { padding: 0.5rem 0.75rem; }
  .order-card-footer .btn-primary,
  .order-card-footer .btn-secondary { font-size: 0.6875rem; padding: 0.3rem 0.75rem; }

  .order-card-footer { border-top: none; }

  /* Modals - full screen slide up */
  .modal-overlay { align-items: flex-end; }
  .modal {
    max-width: 100%;
    width: 100%;
    max-height: 92vh;
    border-radius: 1rem 1rem 0 0;
    padding: 1.25rem;
    transform: translateY(100%);
  }
  .modal-overlay.active .modal { transform: translateY(0); }

  /* Drop zone compact */
  .drop-zone { padding: 1.5rem 1rem; }
  .drop-zone .material-symbols-outlined { font-size: 2rem; }

  /* Toast */
  .toast {
    top: auto;
    bottom: 4.5rem;
    left: 1rem;
    right: 1rem;
    text-align: center;
    transform: translateY(120%);
  }
  .toast.show { transform: translateY(0); }

  /* Login page */
  .login-card { padding: 2rem 1.5rem; margin: 1rem; }
}