:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --success-color: #10b981;
  --success-hover: #059669;
  --danger-color: #ef4444;
  --text-main: #111827;
  --text-muted: #6b7280;
  --bg-main: #ffffff;
  --bg-panel: #ffffff;
  --bg-muted: #f9fafb;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 0 40px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 20px 0;
  color: var(--text-main);
  letter-spacing: -0.025em;
}

nav.tabs {
  display: flex;
  gap: 32px;
}

nav.tabs button {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}

nav.tabs button:hover {
  color: var(--text-main);
}

nav.tabs button.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

main {
  max-width: 95%;
  margin: 40px auto;
  padding: 0 40px;
}

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel {
  background: var(--bg-panel);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: 32px;
  margin-bottom: 32px;
}

.panel h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.025em;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.sub-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.sub-tabs button {
  padding: 12px 24px;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  background: #eff6ff;
  transition: all 0.2s;
}

.sub-tabs button.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
  background-color: #9ca3af;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-small {
  background-color: white;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-small:hover {
  background-color: var(--bg-muted);
  border-color: #d1d5db;
}

.btn-danger {
  background-color: white;
  color: var(--danger-color);
  border: 1px solid #fca5a5;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-danger:hover {
  background-color: #fef2f2;
}

/* Forms */
input[type="text"], input[type="search"], input[type="date"] {
  padding: 10px 16px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  background-color: var(--bg-main);
}

input[type="text"]:focus, input[type="search"]:focus, input[type="date"]:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.upload-row, .filters-row {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 24px;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  background-color: var(--bg-muted);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
  vertical-align: middle;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: #f8fafc;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge.success, .badge.packed, .badge.resolved, .badge.match {
  background-color: #dcfce7;
  color: #166534;
}

.badge.danger, .badge.cancelled, .badge.expired, .badge.unresolved, .badge.failed {
  background-color: #fee2e2;
  color: #991b1b;
}

.badge.pending, .badge.processing {
  background-color: #fef3c7;
  color: #92400e;
}

.badge.neutral {
  background-color: #f3f4f6;
  color: #374151;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(17, 24, 39, 0.4);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-content {
  background: var(--bg-panel);
  border-radius: 12px;
  width: 100%;
  max-width: 800px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform 0.2s ease;
  overflow: hidden;
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-muted);
}

.modal-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-main);
}

#modal-body {
  padding: 24px;
  max-height: 70vh;
  overflow-y: auto;
}

.order-item-row {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
}
.order-item-row:last-child {
  border-bottom: none;
}
.order-item-img {
  width: 80px;
  height: 80px;
  background: var(--bg-muted);
  border-radius: 8px;
  object-fit: contain;
  border: 1px solid var(--border-color);
}
.order-item-details h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.order-item-details p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.dropdown { position: relative; display: inline-block; }
.dropdown-content { display: none; position: absolute; right: 0; background-color: #fff; min-width: 120px; box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2); z-index: 1; border-radius: 4px; overflow: hidden; }
.dropdown-content button { color: #333; padding: 12px 16px; text-decoration: none; display: block; background: none; border: none; width: 100%; text-align: left; cursor: pointer; font-size: 0.85rem; }
.dropdown-content button:hover { background-color: #f1f5f9; }
.dropdown:hover .dropdown-content { display: block; }
.customer-name-cell { max-width: 150px; white-space: normal !important; word-wrap: break-word; line-height: 1.4; }
.btn-large { padding: 8px 24px; font-size: 1.1rem; font-weight: bold; background: var(--success-color); color: white; border: none; border-radius: 6px; }
.tbody-group { border-bottom: 2px solid var(--border-color); }

.photo-modal-container {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.photo-modal-container.active {
    opacity: 1;
    pointer-events: auto;
}
.photo-modal-container img {
    transform: scale(0.95);
    transition: transform 0.3s ease;
}
.photo-modal-container.active img {
    transform: scale(1);
}


/* =========================================
   Table Readability Improvements 
   ========================================= */
table {
    border: 1px solid #94a3b8 !important; /* Darker outer border */
}

table th,
table td {
    text-align: center !important;
    vertical-align: middle !important;
    padding: 24px 16px !important; /* Taller rows with generous padding */
    border: 1px solid #94a3b8 !important; /* Darker cell borders */
}

table th {
    font-weight: 800 !important; /* Stronger font weight */
    font-size: 0.85rem !important;
    color: var(--text-main, #1e293b) !important;
    background-color: var(--bg-muted, #f1f5f9) !important;
    border-bottom: 3px solid #475569 !important; /* Clearly distinguishable header border */
}

table tr:hover td {
    background-color: #f1f5f9 !important; /* Subtle hover state */
}

table img {
    vertical-align: middle !important;
    margin: 0 auto !important;
    display: block !important;
}

/* Preserve alignment for dropdowns embedded inside tables */
table .dropdown-content button {
    text-align: left !important;
}



/* Alternating Order Rows */
.order-row-alt td {
  background-color: #f1f5f9;
}


/* Remove border from inner rows of clubbed orders */
tr.group-inner-row td:not([rowspan]) {
  border-bottom: none !important;
}
tr.group-inner-row + tr td:not([rowspan]) {
  border-top: none !important;
}