/* Global Reset & Design Tokens */
:root {
  /* Base */
  --ink:      #1E1C19;  /* primary text — warm near-black */
  --ink-dim:  #6B6558;  /* secondary text, helper copy */
  --paper:    #FBFAF7;  /* page background */
  --surface:  #FFFFFF;  /* cards, panels, table rows */
  --border:   #E3DFD5;  /* hairline dividers */

  /* Brand / primary actions */
  --brand:      #2B4570;  /* buttons, links, focus rings, active nav item */
  --brand-dim:  #1C2E4C;  /* hover/pressed brand state */

  /* Status */
  --status-good:    #2F7A4D;  /* available, open/on-track, paid */
  --status-warn:    #C97C2E;  /* occupied, in progress, past_due */
  --status-pending: #6B5FA8;  /* reserved, awaiting confirmation */
  --status-danger:  #B23A2E;  /* locked, failed, destructive */
  
  --font-sans: 'IBM Plex Sans', 'IBM Plex Sans Bengali', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --radius: 6px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--paper);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: var(--ink);
}

a {
  color: var(--brand);
  text-decoration: none;
}
a:hover {
  color: var(--brand-dim);
}

.mono-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.text-left { text-align: left; }
.text-right { text-align: right; }

/* Desktop Sidebar Layout */
.app-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background-color: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-shrink: 0;
}

.logo-section {
  padding: 0 8px 24px 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.logo-section h1 {
  font-size: 20px;
  color: var(--brand);
}

.logo-section .restaurant-select {
  margin-top: 8px;
  width: 100%;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 14px;
  background: var(--paper);
  color: var(--ink);
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-grow: 1;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius);
  color: var(--ink-dim);
  font-size: 14px;
  font-weight: 500;
  min-height: 44px; /* Touch target */
}

.nav-item a:hover {
  background-color: var(--paper);
  color: var(--ink);
}

.nav-item.active a {
  background-color: var(--brand);
  color: var(--surface);
}

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 24px;
}

.user-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.user-name {
  font-size: 14px;
  font-weight: 600;
}

.user-role {
  font-size: 12px;
  color: var(--ink-dim);
}

/* Main View Panel */
.main-view {
  flex-grow: 1;
  padding: 32px;
  overflow-y: auto;
  max-width: 1200px;
  width: 100%;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.page-title h2 {
  font-size: 24px;
}

.page-title p {
  font-size: 14px;
  color: var(--ink-dim);
  margin-top: 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  min-height: 44px; /* Touch target */
  min-width: 44px;
}

.btn-primary {
  background-color: var(--brand);
  color: var(--surface);
}
.btn-primary:hover {
  background-color: var(--brand-dim);
}

.btn-secondary {
  background-color: var(--surface);
  border-color: var(--border);
  color: var(--ink);
}
.btn-secondary:hover {
  background-color: var(--paper);
}

.btn-danger {
  background-color: var(--status-danger);
  color: var(--surface);
}
.btn-danger:hover {
  background-color: #922c22;
}

/* Tables and Data Displays */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.data-table th, .data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.data-table th {
  background-color: var(--paper);
  color: var(--ink-dim);
  font-weight: 600;
  text-align: left;
}

.data-table tr:hover td {
  background-color: var(--paper);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 24px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Table POS Cards */
.table-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  min-height: 120px;
  cursor: pointer;
}

.table-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.table-card-title {
  font-size: 16px;
  font-weight: 600;
}

.table-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot-good { background-color: var(--status-good); }
.status-dot-warn { background-color: var(--status-warn); }
.status-dot-pending { background-color: var(--status-pending); }
.status-dot-danger { background-color: var(--status-danger); }

/* POS Order Entry Layout */
.pos-container {
  display: flex;
  gap: 24px;
  height: calc(100vh - 120px);
}

.pos-menu-panel {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.pos-order-sidebar {
  width: 380px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-shrink: 0;
  height: 100%;
}

.category-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  scrollbar-width: thin;
}

.category-tab {
  padding: 8px 16px;
  border-radius: var(--radius);
  background-color: var(--surface);
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  min-height: 44px; /* Touch target */
}

.category-tab.active {
  background-color: var(--brand);
  color: var(--surface);
  border-color: var(--brand);
}

.menu-items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  padding-top: 8px;
}

.menu-item-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 110px;
  cursor: pointer;
}

.menu-item-card:hover {
  background-color: var(--paper);
}

.menu-item-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}

.menu-item-price {
  font-size: 14px;
  color: var(--brand);
  font-weight: 600;
}

.sidebar-order-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-order-items {
  flex-grow: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.order-item-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  font-size: 14px;
}

.order-item-detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.order-item-qty-name {
  font-weight: 600;
}

.order-item-notes {
  font-size: 12px;
  color: var(--ink-dim);
}

.order-item-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.qty-btn {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background-color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-weight: bold;
}

.sidebar-order-totals {
  padding: 16px;
  border-top: 1px solid var(--border);
  background-color: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.total-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

.total-row.grand-total {
  font-weight: bold;
  font-size: 18px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
  margin-top: 4px;
}

.sidebar-order-actions {
  padding: 16px;
  display: flex;
  gap: 8px;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(30, 28, 25, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background-color: var(--surface);
  border-radius: var(--radius);
  width: 500px;
  max-width: 90vw;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Form Styles */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--ink);
}

.form-control:focus {
  outline: none;
  border-color: var(--brand);
}

/* Dashboard Numbers-Forward Styles */
.stat-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: bold;
  color: var(--ink);
}

.stat-label {
  font-size: 12px;
  color: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Login Page Styling */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--paper);
  width: 100%;
}

.login-card {
  width: 400px;
  padding: 40px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h2 {
  font-size: 28px;
  color: var(--brand);
  margin-bottom: 8px;
}

.login-header p {
  color: var(--ink-dim);
  font-size: 14px;
}

.login-error {
  background-color: #FDF2F2;
  border: 1px solid var(--status-danger);
  color: var(--status-danger);
  padding: 12px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 20px;
}