/* ============================================================
   BharatPOS - Main Stylesheet
   Indian Market POS System
   ============================================================ */

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

:root {
  --primary: #1a56db;
  --primary-dark: #1341b8;
  --primary-light: #e8f0fe;
  --secondary: #0e9f6e;
  --secondary-light: #def7ec;
  --danger: #e02424;
  --danger-light: #fde8e8;
  --warning: #d97706;
  --warning-light: #fef3c7;
  --info: #0891b2;
  --info-light: #e0f2fe;
  --dark: #111827;
  --gray-900: #1f2937;
  --gray-700: #374151;
  --gray-500: #6b7280;
  --gray-300: #d1d5db;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --white: #ffffff;
  --sidebar-w: 260px;
  --header-h: 60px;
  --radius: 10px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.15);
  --transition: all 0.2s ease;
  --font-heading: 'Rajdhani', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

body {
  font-family: var(--font-body);
  font-size: 14px;
  background: var(--gray-50);
  color: var(--gray-900);
  line-height: 1.5;
}

h1,h2,h3,h4,h5,h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--dark);
  letter-spacing: 0.3px;
}

/* ---- Layout ---- */
.app-wrapper { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  background: var(--gray-900);
  color: var(--white);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  z-index: 100;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 2px; }

.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  flex-shrink: 0;
}

.sidebar-logo .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.sidebar-logo .brand-icon {
  width: 38px; height: 38px;
  background: var(--primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}

.sidebar-logo .brand-name {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
}

.sidebar-logo .brand-sub {
  font-size: 11px;
  color: rgba(255,255,255,.4);
  margin-top: 1px;
}

.sidebar-nav { flex: 1; padding: 12px 0; }

.nav-section-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
  padding: 12px 20px 4px;
}

.nav-item { display: block; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  color: rgba(255,255,255,.65);
  text-decoration: none;
  border-radius: 0;
  transition: var(--transition);
  font-size: 13.5px;
  position: relative;
}

.nav-link:hover { color: var(--white); background: rgba(255,255,255,.06); }

.nav-link.active {
  color: var(--white);
  background: var(--primary);
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: #60a5fa;
  border-radius: 0 2px 2px 0;
}

.nav-link .nav-icon { width: 18px; text-align: center; font-size: 15px; flex-shrink: 0; }
.nav-link .nav-badge { margin-left: auto; background: var(--danger); color: white; font-size: 10px; padding: 1px 6px; border-radius: 10px; }

.sidebar-footer {
  padding: 12px 20px;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 11px;
  color: rgba(255,255,255,.25);
  flex-shrink: 0;
}

.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  height: var(--header-h);
  background: var(--white);
  border-bottom: 1px solid var(--gray-300);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0; z-index: 50;
}

.topbar-left { flex: 1; display: flex; align-items: center; gap: 12px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

.topbar-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--dark);
}

.page-content { flex: 1; padding: 24px; }

/* ---- Cards ---- */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-300);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }

/* ---- Stat Cards ---- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--gray-300);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; flex-shrink: 0;
}

.stat-icon.blue   { background: var(--primary-light); color: var(--primary); }
.stat-icon.green  { background: var(--secondary-light); color: var(--secondary); }
.stat-icon.orange { background: var(--warning-light); color: var(--warning); }
.stat-icon.red    { background: var(--danger-light); color: var(--danger); }
.stat-icon.teal   { background: var(--info-light); color: var(--info); }

.stat-info .stat-value {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
}

.stat-info .stat-label {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 2px;
}

.stat-info .stat-change {
  font-size: 11px;
  margin-top: 4px;
}

.stat-change.up { color: var(--secondary); }
.stat-change.down { color: var(--danger); }

/* ---- Tables ---- */
.table-wrapper { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }

thead th {
  background: var(--gray-50);
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-300);
  white-space: nowrap;
}

tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--gray-50); }

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

label {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 5px;
}

label .required { color: var(--danger); margin-left: 2px; }

.form-control, .form-select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 7px;
  font-size: 13.5px;
  font-family: var(--font-body);
  color: var(--gray-900);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,.12);
}

.form-control.is-invalid { border-color: var(--danger); }
.invalid-feedback { font-size: 11.5px; color: var(--danger); margin-top: 3px; }

textarea.form-control { resize: vertical; min-height: 80px; }

.input-group {
  display: flex;
}

.input-group .form-control { border-radius: 7px 0 0 7px; }
.input-group .input-group-text {
  padding: 0 12px;
  background: var(--gray-100);
  border: 1px solid var(--gray-300);
  border-left: none;
  border-radius: 0 7px 7px 0;
  font-size: 14px;
  color: var(--gray-500);
  white-space: nowrap;
  display: flex; align-items: center;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 7px;
  font-size: 13.5px;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled { opacity: .6; cursor: not-allowed; }

.btn-sm { padding: 5px 12px; font-size: 12.5px; border-radius: 6px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }
.btn-xs { padding: 3px 8px; font-size: 11.5px; border-radius: 5px; }

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

.btn-success   { background: var(--secondary); color: white; border-color: var(--secondary); }
.btn-success:hover { background: #0b8a60; }

.btn-danger    { background: var(--danger); color: white; border-color: var(--danger); }
.btn-danger:hover { background: #c81e1e; }

.btn-warning   { background: var(--warning); color: white; border-color: var(--warning); }
.btn-warning:hover { background: #b45309; }

.btn-info      { background: var(--info); color: white; border-color: var(--info); }

.btn-outline-primary { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-outline-primary:hover { background: var(--primary); color: white; }

.btn-outline-secondary { border-color: var(--gray-300); color: var(--gray-700); background: transparent; }
.btn-outline-secondary:hover { background: var(--gray-100); }

.btn-outline-danger { border-color: var(--danger); color: var(--danger); background: transparent; }
.btn-outline-danger:hover { background: var(--danger); color: white; }

.btn-ghost { border-color: transparent; background: transparent; color: var(--gray-700); }
.btn-ghost:hover { background: var(--gray-100); }

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.badge-success   { background: var(--secondary-light); color: #065f46; }
.badge-danger    { background: var(--danger-light); color: #9b1c1c; }
.badge-warning   { background: var(--warning-light); color: #78350f; }
.badge-info      { background: var(--info-light); color: #155e75; }
.badge-primary   { background: var(--primary-light); color: #1e40af; }
.badge-secondary { background: var(--gray-100); color: var(--gray-700); }

/* ---- Modals ---- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(2px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.open { opacity: 1; pointer-events: auto; }

.modal {
  background: var(--white);
  border-radius: 12px;
  width: 100%;
  max-height: 90vh;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.2s;
}

.modal-overlay.open .modal { transform: translateY(0); }

.modal-sm  { max-width: 400px; }
.modal-md  { max-width: 600px; }
.modal-lg  { max-width: 900px; }
.modal-xl  { max-width: 1100px; }

.modal-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}

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

.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--gray-100);
  display: flex; justify-content: flex-end; gap: 10px;
  flex-shrink: 0;
}

.btn-close {
  width: 30px; height: 30px;
  border: none; background: var(--gray-100);
  border-radius: 6px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--gray-500);
  transition: var(--transition);
}
.btn-close:hover { background: var(--gray-300); color: var(--dark); }

/* ---- Alerts ---- */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13.5px;
}

.alert-success { background: var(--secondary-light); color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger  { background: var(--danger-light); color: #9b1c1c; border: 1px solid #fca5a5; }
.alert-warning { background: var(--warning-light); color: #78350f; border: 1px solid #fcd34d; }
.alert-info    { background: var(--info-light); color: #155e75; border: 1px solid #7dd3fc; }

/* ---- POS Specific ---- */
.pos-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 0;
  height: calc(100vh - var(--header-h));
  overflow: hidden;
}

.pos-products {
  overflow-y: auto;
  padding: 16px;
  background: var(--gray-50);
}

.pos-cart {
  background: var(--white);
  border-left: 1px solid var(--gray-300);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pos-search-bar {
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-300);
  background: var(--white);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(145px, 1fr));
  gap: 10px;
}

.product-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  padding: 12px 10px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.product-card:hover {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-light);
  transform: translateY(-1px);
}

.product-card.out-of-stock { opacity: .55; cursor: not-allowed; }

.product-card .p-name {
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 4px;
  color: var(--gray-900);
}

.product-card .p-price {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}

.product-card .p-stock {
  font-size: 10.5px;
  color: var(--gray-500);
}

/* Cart */
.cart-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-100);
  font-weight: 600;
  font-size: 14px;
}

.cart-items { flex: 1; overflow-y: auto; }

.cart-item {
  padding: 10px 16px;
  border-bottom: 1px solid var(--gray-100);
  display: flex; gap: 10px; align-items: flex-start;
}

.cart-item-name { font-size: 13px; font-weight: 500; flex: 1; }
.cart-item-price { font-size: 13px; font-weight: 600; color: var(--primary); }

.qty-control {
  display: flex;
  align-items: center;
  gap: 6px;
}

.qty-btn {
  width: 24px; height: 24px;
  border: 1px solid var(--gray-300);
  background: var(--gray-100);
  border-radius: 5px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600;
  transition: var(--transition);
}

.qty-btn:hover { background: var(--primary); color: white; border-color: var(--primary); }
.qty-input {
  width: 48px; text-align: center;
  border: 1px solid var(--gray-300);
  border-radius: 5px;
  padding: 2px 4px;
  font-size: 13px;
}

.cart-totals { padding: 12px 16px; border-top: 1px solid var(--gray-100); }
.cart-totals-row { display: flex; justify-content: space-between; font-size: 13px; padding: 3px 0; }
.cart-totals-row.total { font-size: 16px; font-weight: 700; padding-top: 8px; border-top: 1px solid var(--gray-300); margin-top: 6px; }
.cart-actions { padding: 12px 16px; display: flex; gap: 8px; flex-shrink: 0; }

/* ---- Invoice Print ---- */
@media print {
  .sidebar, .topbar, .no-print { display: none !important; }
  .main-content { margin: 0 !important; }
  .invoice-print { padding: 0 !important; }
  body { background: white; }
}

/* ---- Utilities ---- */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-end  { justify-content: flex-end; }
.gap-1  { gap: 4px; }
.gap-2  { gap: 8px; }
.gap-3  { gap: 12px; }
.gap-4  { gap: 16px; }
.gap-6  { gap: 24px; }
.w-full { width: 100%; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-sm  { font-size: 12px; }
.text-xs  { font-size: 11px; }
.text-lg  { font-size: 16px; }
.text-xl  { font-size: 18px; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.text-muted { color: var(--gray-500); }
.text-danger { color: var(--danger); }
.text-success { color: var(--secondary); }
.text-primary { color: var(--primary); }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.p-0 { padding: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 16px; }
.hidden { display: none !important; }

.divider { height: 1px; background: var(--gray-100); margin: 16px 0; }

.loading-spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--gray-300);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-500);
}

.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state h3 { font-size: 16px; color: var(--gray-700); margin-bottom: 6px; }

/* ---- Toasts ---- */
#toast-container {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 9999;
  display: flex; flex-direction: column; gap: 8px;
}

.toast {
  background: var(--dark);
  color: white;
  padding: 12px 18px;
  border-radius: 8px;
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 360px;
  box-shadow: var(--shadow-lg);
  animation: slideIn .25s ease;
}

.toast.success { background: var(--secondary); }
.toast.danger  { background: var(--danger); }
.toast.warning { background: var(--warning); }
.toast.info    { background: var(--info); }

@keyframes slideIn {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* ---- Subscription Banner ---- */
.sub-banner {
  background: var(--danger);
  color: white;
  padding: 10px 24px;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
}

/* Responsive */
@media (max-width: 1024px) {
  .pos-layout { grid-template-columns: 1fr 320px; }
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .pos-layout { grid-template-columns: 1fr; }
  .pos-cart { position: fixed; right: 0; top: var(--header-h); bottom: 0; width: 100%; transform: translateX(100%); transition: var(--transition); }
  .pos-cart.open { transform: translateX(0); }
}