/* ============================================================
   SARDAR ERP — MAIN STYLESHEET
   ============================================================ */
:root {
  --sidebar-w: 255px;
  --topbar-h: 62px;
  --primary: #4361ee;
  --primary-dark: #3251d6;
  --primary-light: #eef1ff;
  --success: #00c9a7;
  --warning: #f7b731;
  --danger: #e74c3c;
  --info: #3498db;
  --sidebar-bg: #0f172a;
  --sidebar-text: #94a3b8;
  --sidebar-active: #4361ee;
  --sidebar-hover: #1e293b;
  --body-bg: #f1f5f9;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --input-bg: #f8fafc;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: .18s ease;
}

[data-theme="dark"] {
  --body-bg: #0d1117;
  --card-bg: #161b22;
  --border-color: #21262d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #484f58;
  --input-bg: #21262d;
  --sidebar-bg: #010409;
  --sidebar-hover: #161b22;
}

/* ---- Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--body-bg);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ---- SIDEBAR ---- */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 1040;
  transition: transform var(--transition), width var(--transition);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  flex-shrink: 0;
}
.brand-icon {
  width: 38px; height: 38px;
  background: var(--primary);
  border-radius: var(--radius-md);
  display: grid; place-items: center;
  font-size: 18px; color: #fff;
  flex-shrink: 0;
}
.brand-name { color: #fff; font-weight: 700; font-size: 15px; line-height: 1.2; }
.brand-version { color: var(--sidebar-text); font-size: 11px; }

.sidebar-search {
  margin: 12px 14px;
  background: rgba(255,255,255,.06);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  color: var(--sidebar-text);
  flex-shrink: 0;
}
.sidebar-search i { font-size: 13px; flex-shrink: 0; }
.sidebar-search input {
  background: none; border: none; outline: none;
  color: var(--sidebar-text); font-size: 13px; width: 100%;
  font-family: var(--font);
}
.sidebar-search input::placeholder { color: rgba(148,163,184,.5); }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px 24px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.1) transparent;
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 2px; }

.nav-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(148,163,184,.5);
  padding: 14px 10px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  color: var(--sidebar-text);
  font-size: 13.5px;
  font-weight: 450;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  margin-bottom: 1px;
  position: relative;
}
.nav-item i { font-size: 15px; flex-shrink: 0; width: 18px; text-align: center; }
.nav-item span { flex: 1; }
.nav-item:hover { background: var(--sidebar-hover); color: #fff; }
.nav-item.active {
  background: var(--primary);
  color: #fff;
  font-weight: 500;
}
.nav-item.active i { color: #fff; }
.nav-badge {
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

/* ---- MAIN WRAPPER ---- */
.main-wrapper {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition);
}

/* ---- TOPBAR ---- */
.topbar {
  height: var(--topbar-h);
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 1030;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}
.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-toggle {
  border: none;
  background: none;
  cursor: pointer;
  font-size: 20px;
  color: var(--text-secondary);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.sidebar-toggle:hover { background: var(--border-color); }

.breadcrumb { font-size: 13px; }
.breadcrumb-item a { color: var(--text-secondary); }
.breadcrumb-item.active { color: var(--text-primary); }
.breadcrumb-item+.breadcrumb-item::before { color: var(--text-muted); }

.topbar-search {
  background: var(--body-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  color: var(--text-muted);
  min-width: 220px;
}
.topbar-search input {
  background: none; border: none; outline: none;
  color: var(--text-primary); font-size: 13px;
  font-family: var(--font);
}
.topbar-search input::placeholder { color: var(--text-muted); }

.icon-btn {
  position: relative;
  width: 38px; height: 38px;
  border: none;
  background: var(--body-bg);
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 16px;
  color: var(--text-secondary);
  transition: background var(--transition);
}
.icon-btn:hover { background: var(--border-color); }
.icon-badge {
  position: absolute;
  top: 2px; right: 2px;
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  line-height: 1;
  padding: 0 4px;
}

.user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  border: none;
  background: var(--body-bg);
  border-radius: var(--radius-lg);
  padding: 5px 10px 5px 5px;
  cursor: pointer;
  transition: background var(--transition);
}
.user-btn:hover { background: var(--border-color); }
.user-avatar {
  width: 32px; height: 32px;
  background: var(--primary);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.user-name { font-size: 13px; font-weight: 600; color: var(--text-primary); line-height: 1.2; text-align: left; }
.user-role { font-size: 11px; color: var(--text-muted); text-align: left; }

/* ---- PAGE CONTENT ---- */
.page-content { padding: 24px; flex: 1; }

/* ---- CARDS ---- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.card-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 20px;
  font-weight: 600;
  font-size: 14.5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.card-header .card-title { font-size: 15px; font-weight: 600; margin: 0; color: var(--text-primary); }
.card-body { padding: 20px; }

/* ---- STAT CARDS ---- */
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  border-radius: 0 4px 4px 0;
}
.stat-card.primary::before { background: var(--primary); }
.stat-card.success::before { background: var(--success); }
.stat-card.warning::before { background: var(--warning); }
.stat-card.danger::before  { background: var(--danger); }
.stat-card.info::before    { background: var(--info); }

.stat-icon {
  width: 46px; height: 46px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-size: 20px;
  margin-bottom: 14px;
}
.stat-icon.primary { background: var(--primary-light); color: var(--primary); }
.stat-icon.success { background: #e8fff8; color: var(--success); }
.stat-icon.warning { background: #fff8e1; color: var(--warning); }
.stat-icon.danger  { background: #fdecea; color: var(--danger); }
.stat-icon.info    { background: #e3f2fd; color: var(--info); }

.stat-label { font-size: 12.5px; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: .04em; }
.stat-value { font-size: 24px; font-weight: 700; color: var(--text-primary); line-height: 1.2; margin: 4px 0; }
.stat-change {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ---- TABLES ---- */
.table { font-size: 13.5px; color: var(--text-primary); }
.table th { font-weight: 600; color: var(--text-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; background: var(--body-bg); border-color: var(--border-color); }
.table td { border-color: var(--border-color); vertical-align: middle; }
.table-hover tbody tr:hover { background: var(--primary-light); }
.table > :not(caption) > * > * { background: none; color: inherit; }

/* DataTables overrides */
.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 5px 10px;
  font-family: var(--font);
  font-size: 13px;
}
.dataTables_wrapper .dataTables_info { color: var(--text-muted); font-size: 13px; }
div.dataTables_wrapper div.dataTables_filter { text-align: left; }

/* ---- BUTTONS ---- */
.btn { font-family: var(--font); font-size: 13.5px; font-weight: 500; border-radius: var(--radius-md); padding: 7px 16px; transition: all var(--transition); }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-sm { padding: 4px 10px; font-size: 12.5px; }
.btn-icon { width: 32px; height: 32px; padding: 0; display: inline-grid; place-items: center; }
.btn-outline-primary { color: var(--primary); border-color: var(--primary); }
.btn-outline-primary:hover { background: var(--primary); color: #fff; }

/* ---- FORMS ---- */
.form-control, .form-select {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 13.5px;
  padding: 8px 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67,97,238,.15);
  background: var(--card-bg);
}
.form-label { font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 5px; }
.input-group-text {
  background: var(--body-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 13px;
}

/* Select2 */
.select2-container--bootstrap-5 .select2-selection {
  background: var(--input-bg) !important;
  border-color: var(--border-color) !important;
  min-height: 38px;
  font-size: 13.5px;
  color: var(--text-primary) !important;
}
.select2-container--bootstrap-5 .select2-dropdown {
  background: var(--card-bg);
  border-color: var(--border-color);
  font-size: 13.5px;
}

/* Flatpickr */
.flatpickr-calendar {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  font-family: var(--font);
}

/* ---- BADGES ---- */
.badge { font-size: 11px; font-weight: 500; padding: 4px 8px; border-radius: 20px; }

/* ---- PAGE TITLE ---- */
.page-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
  flex-wrap: wrap;
}
.page-title h1 { font-size: 22px; font-weight: 700; color: var(--text-primary); margin: 0; }
.page-title p { font-size: 13px; color: var(--text-muted); margin: 2px 0 0; }

/* ---- MODAL ---- */
.modal-content {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  box-shadow: var(--shadow-lg);
}
.modal-header {
  border-bottom: 1px solid var(--border-color);
  padding: 16px 20px;
}
.modal-title { font-size: 16px; font-weight: 600; }
.modal-footer { border-top: 1px solid var(--border-color); padding: 14px 20px; }

/* ---- DROPDOWN ---- */
.dropdown-menu {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 6px;
  background: var(--card-bg);
  font-size: 13.5px;
}
.dropdown-item { border-radius: var(--radius-sm); padding: 8px 12px; color: var(--text-primary); display: flex; align-items: center; gap: 6px; }
.dropdown-item:hover { background: var(--primary-light); color: var(--primary); }
.dropdown-header { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; padding: 8px 12px 4px; }
.dropdown-divider { border-color: var(--border-color); margin: 4px 0; }
.notif-dropdown { min-width: 280px; max-height: 360px; overflow-y: auto; }
.notif-dropdown .dropdown-item { align-items: flex-start; gap: 10px; padding: 10px 12px; }

/* ---- ALERT ---- */
.alert { border-radius: var(--radius-md); font-size: 13.5px; border: none; }
.alert-success { background: #e8fff8; color: #00a886; }
.alert-danger  { background: #fdecea; color: #c0392b; }
.alert-warning { background: #fff8e1; color: #d4880d; }
.alert-info    { background: #e3f2fd; color: #2980b9; }

/* ---- ITEMS TABLE (for invoice items) ---- */
.items-table { width: 100%; border-collapse: collapse; }
.items-table th { background: var(--body-bg); padding: 9px 10px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--text-secondary); text-align: left; }
.items-table td { padding: 8px 10px; border-bottom: 1px solid var(--border-color); vertical-align: middle; }
.items-table td input, .items-table td select { padding: 5px 8px; font-size: 13px; }
.items-table .remove-row { cursor: pointer; color: var(--danger); font-size: 16px; padding: 4px; }

/* ---- INVOICE PRINT ---- */
.invoice-preview {
  background: #fff;
  padding: 40px;
  max-width: 820px;
  margin: 0 auto;
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-lg);
  font-size: 13px;
  color: #1e293b;
}
.invoice-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 32px; }
.invoice-logo { font-size: 22px; font-weight: 700; color: var(--primary); }
.invoice-title { font-size: 32px; font-weight: 300; color: #94a3b8; text-align: right; text-transform: uppercase; letter-spacing: .1em; }
.invoice-table th { background: var(--primary); color: #fff; padding: 10px 14px; font-weight: 500; font-size: 12px; text-transform: uppercase; }
.invoice-table td { padding: 10px 14px; border-bottom: 1px solid #e2e8f0; }
.invoice-total { text-align: right; margin-top: 20px; }
.invoice-total table { margin-left: auto; min-width: 260px; }
.invoice-total td { padding: 6px 12px; }

/* ---- SIDEBAR OVERLAY ---- */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 1035;
  backdrop-filter: blur(2px);
}
.sidebar-overlay.show { display: block; }

/* ---- RESPONSIVE ---- */
@media (max-width: 991px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-wrapper { margin-left: 0; }
}

/* ---- CHART WRAPPER ---- */
.chart-wrapper { position: relative; min-height: 260px; }

/* ---- MINI CHART ---- */
.sparkline { width: 100%; height: 50px; }

/* ---- PROGRESS ---- */
.progress { height: 6px; border-radius: 3px; background: var(--border-color); }
.progress-bar { border-radius: 3px; }

/* ---- TIMELINE ---- */
.timeline { position: relative; padding-left: 24px; }
.timeline::before { content:''; position:absolute; left:7px; top:0; bottom:0; width:2px; background:var(--border-color); }
.timeline-item { position:relative; margin-bottom:20px; }
.timeline-item::before { content:''; position:absolute; left:-21px; top:5px; width:12px; height:12px; border-radius:50%; background:var(--primary); border:2px solid var(--card-bg); }
.timeline-title { font-weight:600; font-size:13.5px; }
.timeline-time { font-size:11.5px; color:var(--text-muted); }
.timeline-desc { font-size:13px; color:var(--text-secondary); margin-top:2px; }

/* ---- UTILITIES ---- */
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.text-xs { font-size: 11px; }
.text-sm { font-size: 12.5px; }
.gap-2 { gap: 8px; }
.cursor-pointer { cursor: pointer; }
.border-radius-lg { border-radius: var(--radius-lg); }

/* Print */
@media print {
  .sidebar, .topbar, .no-print { display: none !important; }
  .main-wrapper { margin-left: 0; }
  .page-content { padding: 0; }
  body { background: #fff; }
}