/* Base Reset */
* { box-sizing: border-box; }
html { font-size: 16px; }
body {
  margin:0;
  font-family: Arial, Helvetica, sans-serif;
  background:#f5f7fa;
  color:#222;
  -webkit-font-smoothing: antialiased;
}

/* Top Bar / Nav */
.topbar {
  background:#1f2937;
  color:#fff;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:10px 18px;
  position:sticky;
  top:0;
  z-index:100;
}
.logo { font-weight:600; font-size:1.05rem; }
.topbar nav { display:flex; gap:14px; }
.topbar nav a {
  color:#cfe3ff;
  font-size:0.85rem;
  text-decoration:none;
  padding:6px 8px;
  border-radius:4px;
  transition:background .15s;
}
.topbar nav a.active { background:#374151; }
.topbar nav a.logout { color:#ffb3b3; }
.topbar nav a:hover { background:#2b3848; }

/* Mobile Nav Toggle */
.nav-toggle {
  display:none;
  background:none;
  border:1px solid #4b5563;
  color:#cfe3ff;
  padding:6px 10px;
  border-radius:5px;
  cursor:pointer;
  font-size:0.85rem;
}
@media (max-width:700px) {
  .topbar nav { display:none; flex-direction:column; background:#1f2937; margin-top:10px; }
  .topbar.nav-open nav { display:flex; }
  .nav-toggle { display:block; }
}

/* Container */
.container { padding:20px 20px 60px; max-width:1400px; margin:0 auto; }

/* Headings */
h1 { margin:0 0 20px; font-size:1.35rem; }
h2 { font-size:1.15rem; margin:25px 0 15px; }

/* Filters */
.filters {
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  align-items:flex-end;
  margin-bottom:16px;
  background:#ffffff;
  padding:14px 16px;
  border:1px solid #d1d5db;
  border-radius:8px;
  box-shadow:0 2px 6px rgba(0,0,0,0.06);
}
.filters label {
  display:flex;
  flex-direction:column;
  font-size:0.8rem;
  font-weight:600;
  color:#1f2937;
  flex:0 1 160px;
}
.filters input[type="date"],
.filters select,
.filters input[type="text"] {
  padding:12px 12px;
  font-size:0.85rem;
  border:1px solid #9ca3af;
  border-radius:6px;
  background:#fff;
  transition:border-color .15s, box-shadow .15s;
}
.filters input:focus,
.filters select:focus {
  outline:none;
  border-color:#2563eb;
  box-shadow:0 0 0 2px rgba(37,99,235,0.20);
}
.filters button,
.filters .btn-clear,
.filters .btn-export {
  padding:12px 20px;
  font-size:0.85rem;
  background:#2563eb;
  color:#fff;
  border:none;
  border-radius:6px;
  cursor:pointer;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:48px;
  line-height:1;
}
.filters .btn-clear { background:#6b7280; }
.filters .btn-export { background:#059669; }
.filters button:hover { background:#1d4ed8; }
.filters .btn-clear:hover { background:#525b66; }
.filters .btn-export:hover { background:#047857; }

/* Tall & Bigger variant (if used) */
.tall-filters input,
.tall-filters select { height:48px; }
.bigger-filters label { font-size:0.85rem; }

/* Mobile Filters Stacking */
@media (max-width:760px) {
  .filters { flex-direction:column; }
  .filters label { width:100%; flex:1 1 auto; }
  .filters button,
  .filters .btn-clear,
  .filters .btn-export { width:100%; justify-content:center; }
}

/* Data Table Wrapper */
.table-responsive {
  width:100%;
  overflow-x:auto;
  background:#fff;
  border:1px solid #d1d5db;
  border-radius:8px;
  box-shadow:0 1px 4px rgba(0,0,0,0.08);
}

/* Table */
.data {
  width:100%;
  border-collapse:collapse;
  min-width:720px; /* Allows horizontal scroll on narrow screens */
}
.data th,
.data td {
  padding:10px 12px;
  border:1px solid #e5e7eb;
  font-size:0.8rem;
  text-align:left;
  vertical-align:middle;
  background:#fff;
}
.data th {
  background:#374151;
  color:#ffffff;
  position:sticky;
  top:0;
  z-index:1;
}
.data th.num,
.data td.num { text-align:right; white-space:nowrap; }
.data th.actions,
.data td.actions { text-align:center; }

.data tbody tr:nth-child(even) { background:#f9fafb; }
.data tbody tr:hover { background:#eef2f7; }

/* View Link Button */
.view-link {
  display:inline-block;
  padding:6px 12px;
  background:#2563eb;
  color:#fff;
  text-decoration:none;
  font-size:0.7rem;
  border-radius:4px;
  line-height:1.2;
  transition:background .15s;
}
.view-link:hover { background:#1d4ed8; }

/* Optional Card View below 520px */
@media (max-width:520px) {
  .data { min-width:0; }
  .data thead { display:none; }
  .data tbody tr {
    display:block;
    border:1px solid #d1d5db;
    margin-bottom:10px;
    border-radius:8px;
    overflow:hidden;
    background:#fff;
  }
  .data tbody tr td {
    display:flex;
    justify-content:space-between;
    padding:8px 10px;
    border:none;
    border-bottom:1px solid #eee;
    font-size:0.75rem;
  }
  .data tbody tr td:last-child { border-bottom:none; }
  .data tbody tr td::before {
    content:attr(data-label);
    font-weight:600;
    color:#374151;
    padding-right:10px;
  }
  .data tbody tr td.num { justify-content:space-between; }
  /* Actions center */
  .data tbody tr td.actions { justify-content:center; }
}

/* Pagination */
.pagination {
  margin:18px 0;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.pagination a,
.pagination span {
  padding:8px 12px;
  background:#ffffff;
  border:1px solid #d1d5db;
  font-size:0.7rem;
  text-decoration:none;
  border-radius:6px;
  color:#374151;
  line-height:1;
}
.pagination .current {
  background:#2563eb;
  color:#fff;
  border-color:#2563eb;
}

/* KPI Cards */
.kpis {
  display:flex;
  gap:18px;
  flex-wrap:wrap;
  margin:20px 0 30px;
}
.kpi {
  background:#ffffff;
  padding:14px 16px;
  border-radius:8px;
  flex:1 1 180px;
  min-width:160px;
  box-shadow:0 1px 4px rgba(0,0,0,0.08);
}
.kpi h3 {
  margin:0 0 8px;
  font-size:0.75rem;
  text-transform:uppercase;
  letter-spacing:0.5px;
  color:#4b5563;
}
.kpi p {
  margin:0;
  font-size:1rem;
  font-weight:600;
  color:#1f2937;
}

/* Chart Boxes */
.chart-box {
  background:#ffffff;
  padding:14px 16px;
  border-radius:8px;
  margin-bottom:20px;
  box-shadow:0 1px 4px rgba(0,0,0,0.08);
}

/* Sale Summary */
.sale-summary {
  background:#ffffff;
  padding:14px 16px;
  border-radius:8px;
  margin-bottom:20px;
  box-shadow:0 1px 4px rgba(0,0,0,0.08);
  font-size:0.8rem;
}
.sale-summary p { margin:4px 0; }

/* Alerts */
.alert {
  padding:10px;
  border-radius:6px;
  font-size:0.75rem;
  margin-bottom:12px;
  border:1px solid #d6d6d6;
  background:#fff;
}
.alert.error {
  background:#ffe5e5;
  border-color:#ffb3b3;
  color:#7a0000;
}

/* Login */
.login-body {
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#e2e8f0,#f8fafc);
  padding:24px;
}
.login-card {
  width:340px;
  background:#ffffff;
  border:1px solid #d1d5db;
  border-radius:10px;
  padding:28px 28px 32px;
  box-shadow:0 4px 18px rgba(0,0,0,0.12);
  text-align:center;
}
.login-logo { margin-bottom:12px; }
.logo-img {
  width:64px; height:64px; object-fit:contain;
  border:1px solid #ccc; border-radius:8px;
  background:#fff; padding:4px;
}
.login-title {
  font-size:1.1rem;
  margin:8px 0 20px;
  font-weight:600;
  color:#1f2937;
}
.login-form .form-group {
  text-align:left;
  margin-bottom:16px;
}
.login-form label {
  display:block;
  font-size:0.7rem;
  font-weight:700;
  margin-bottom:4px;
  color:#374151;
  letter-spacing:0.3px;
}
.login-form input[type="text"],
.login-form input[type="password"] {
  width:100%;
  padding:10px 11px;
  font-size:0.8rem;
  border:1px solid #9ca3af;
  border-radius:6px;
  background:#f9fafb;
  transition:border-color .15s, background .15s, box-shadow .15s;
}
.login-form input:focus {
  outline:none;
  border-color:#2563eb;
  background:#ffffff;
  box-shadow:0 0 0 2px rgba(37,99,235,0.20);
}
.login-btn {
  width:100%;
  padding:12px 0;
  background:#2563eb;
  color:#fff;
  border:none;
  border-radius:6px;
  font-size:0.85rem;
  font-weight:600;
  cursor:pointer;
  margin-top:4px;
  letter-spacing:0.4px;
}
.login-btn:hover { background:#1d4ed8; }

/* Mobile Login Tweaks */
@media (max-width:420px) {
  .login-card { width:100%; padding:24px 20px 28px; }
  .login-form input { font-size:0.75rem; }
  .login-title { font-size:1rem; }
  .login-btn { font-size:0.8rem; }
}

/* Dark Mode (optional toggle class .dark) */
body.dark {
  background:#111827;
  color:#e5e7eb;
}
body.dark .topbar { background:#0f172a; }
body.dark .filters,
body.dark .kpi,
body.dark .sale-summary,
body.dark .chart-box,
body.dark .login-card,
body.dark .table-responsive {
  background:#1e293b;
  border-color:#334155;
  color:#e5e7eb;
}
body.dark .data th { background:#1e293b; }
body.dark .data td { background:#0f172a; color:#e5e7eb; }
body.dark .login-form input { background:#1e293b; border-color:#334155; color:#e5e7eb; }
body.dark .login-form input:focus { background:#0f172a; }

.nav-toggle {
  display:none;
  background:none;
  border:1px solid #4b5563;
  color:#cfe3ff;
  padding:6px 10px;
  border-radius:5px;
  cursor:pointer;
  font-size:0.85rem;
}

@media (max-width:700px) {
  .topbar nav { display:none; flex-direction:column; background:#1f2937; margin-top:10px; }
  .topbar.nav-open nav { display:flex; }
  .nav-toggle { display:block; }
}

/* Base */
* { box-sizing: border-box; }
body {
  margin:0;
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:#f5f7fa;
  color:#1f2937;
  -webkit-font-smoothing: antialiased;
}
a { color:#2563eb; text-decoration:none; }
a:hover { text-decoration:underline; }

/* Topbar */
.topbar {
  background:#1f2937;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:10px 18px;
  position:sticky;
  top:0;
  z-index:100;
}
.logo { font-weight:600; font-size:1rem; letter-spacing:.5px; }
.nav-toggle {
  display:none;
  background:none;
  border:1px solid #4b5563;
  color:#cfe3ff;
  padding:6px 10px;
  border-radius:5px;
  cursor:pointer;
  font-size:.75rem;
}
.topbar nav { display:flex; gap:12px; }
.topbar nav a {
  padding:6px 10px;
  border-radius:4px;
  font-size:.75rem;
  background:transparent;
}
.topbar nav a.active { background:#374151; }
.topbar nav a.logout { color:#ffb3b3; }

@media (max-width:700px) {
  .nav-toggle { display:block; }
  .topbar nav { display:none; flex-direction:column; background:#1f2937; margin-top:10px; }
  .topbar.nav-open nav { display:flex; }
}

/* Container */
.container {
  max-width:1400px;
  margin:0 auto;
  padding:20px 20px 60px;
}

/* Filters */
.filters {
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  background:#fff;
  padding:16px 18px;
  border:1px solid #d1d5db;
  border-radius:10px;
  margin-bottom:18px;
  box-shadow:0 2px 6px rgba(0,0,0,.05);
}
.filters label {
  display:flex;
  flex-direction:column;
  min-width:170px;
  font-size:.8rem;
  font-weight:600;
  color:#374151;
}
.filters input[type=date],
.filters select {
  padding:12px 12px;
  font-size:.85rem;
  border:1px solid #9ca3af;
  border-radius:8px;
  background:#fff;
  transition:border-color .15s, box-shadow .15s;
}
.filters input:focus,
.filters select:focus {
  outline:none;
  border-color:#2563eb;
  box-shadow:0 0 0 2px rgba(37,99,235,.2);
}
.filters button,
.filters .btn-clear,
.filters .btn-export {
  padding:12px 18px;
  font-size:.8rem;
  background:#2563eb;
  color:#fff;
  border:none;
  border-radius:8px;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  height:48px;
  gap:6px;
}
.filters .btn-clear { background:#6b7280; }
.filters .btn-export { background:#059669; }
.filters button:hover { background:#1d4ed8; }
.filters .btn-clear:hover { background:#525b66; }
.filters .btn-export:hover { background:#047857; }

@media (max-width:760px) {
  .filters { flex-direction:column; }
  .filters label { width:100%; }
  .filters button,
  .filters .btn-clear,
  .filters .btn-export { width:100%; justify-content:center; }
}

/* Table wrapper */
.table-responsive {
  width:100%;
  overflow-x:auto;
  background:#fff;
  border:1px solid #d1d5db;
  border-radius:10px;
  box-shadow:0 1px 4px rgba(0,0,0,.08);
}

/* Data table */
.data {
  width:100%;
  border-collapse:collapse;
  min-width:860px;
}
.data th,
.data td {
  padding:10px 12px;
  border:1px solid #e5e7eb;
  font-size:.75rem;
  background:#fff;
  text-align:left;
  vertical-align:middle;
}
.data th {
  background:#374151;
  color:#fff;
  position:sticky;
  top:0;
  z-index:1;
}
.data th.num,
.data td.num { text-align:right; white-space:nowrap; }
.data th.actions,
.data td.actions { text-align:center; }

.data tbody tr:nth-child(even) { background:#f9fafb; }
.data tbody tr:hover { background:#eef2f7; }

/* View link */
.view-link {
  display:inline-block;
  padding:6px 10px;
  background:#2563eb;
  color:#fff;
  font-size:.65rem;
  border-radius:6px;
  text-decoration:none;
  line-height:1.2;
  transition:background .15s;
}
.view-link:hover { background:#1d4ed8; }

/* Optional card view under 520px */
@media (max-width:520px) {
  .data { min-width:0; }
  .data thead { display:none; }
  .data tbody tr {
    display:block;
    margin-bottom:12px;
    border:1px solid #d1d5db;
    border-radius:10px;
    overflow:hidden;
    background:#fff;
  }
  .data tbody tr td {
    display:flex;
    justify-content:space-between;
    border:none;
    border-bottom:1px solid #eee;
    font-size:.7rem;
    padding:8px 10px;
  }
  .data tbody tr td:last-child { border-bottom:none; }
  .data tbody tr td::before {
    content:attr(data-label);
    font-weight:600;
    color:#374151;
    padding-right:10px;
  }
  .data tbody tr td.actions { justify-content:center; }
}

/* Pagination */
.pagination {
  margin:20px 0;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.pagination a,
.pagination span {
  padding:8px 12px;
  background:#fff;
  border:1px solid #d1d5db;
  font-size:.65rem;
  border-radius:6px;
  text-decoration:none;
  color:#374151;
}
.pagination .current {
  background:#2563eb;
  color:#fff;
  border-color:#2563eb;
}

/* Sale summary */
.sale-summary {
  background:#fff;
  border:1px solid #d1d5db;
  border-radius:10px;
  padding:16px 18px;
  margin-bottom:20px;
  box-shadow:0 1px 4px rgba(0,0,0,.06);
  font-size:.75rem;
}
.sale-summary p { margin:4px 0; }

/* Detail lines table inside sale_view */
.detail-table-wrapper {
  overflow-x:auto;
  background:#fff;
  border:1px solid #d1d5db;
  border-radius:10px;
  box-shadow:0 1px 4px rgba(0,0,0,.06);
  margin-bottom:24px;
}
.detail-table {
  width:100%;
  min-width:900px;
  border-collapse:collapse;
}
.detail-table th,
.detail-table td {
  padding:8px 10px;
  border:1px solid #e5e7eb;
  font-size:.7rem;
  background:#fff;
}
.detail-table th {
  background:#374151;
  color:#fff;
}
.detail-table td.num { text-align:right; }
.detail-table tbody tr:nth-child(even){ background:#f9fafb; }

/* Alerts */
.alert {
  padding:10px;
  border-radius:8px;
  font-size:.7rem;
  margin-bottom:12px;
  border:1px solid #d6d6d6;
  background:#fff;
}
.alert.error {
  background:#ffe5e5;
  border-color:#ffb3b3;
  color:#7a0000;
}

/* Dark mode (optional toggle) */
body.dark {
  background:#111827;
  color:#e5e7eb;
}
body.dark .topbar { background:#0f172a; }
body.dark .filters,
body.dark .table-responsive,
body.dark .sale-summary,
body.dark .detail-table-wrapper {
  background:#1e293b;
  border-color:#334155;
  color:#e5e7eb;
}
body.dark .data th,
body.dark .detail-table th { background:#1e293b; }
body.dark .data td,
body.dark .detail-table td { background:#0f172a; color:#e5e7eb; }

/* Highlight negative or very low margin percent rows */
.detail-table tbody tr td.num:last-child {
  /* last numeric is Margin % */
}
.detail-table tbody tr.low-margin td {
  background:#fff8e1; /* soft yellow */
}
.detail-table tbody tr.negative-margin td {
  background:#ffe5e5; /* soft red */
}
/* NAV FONT UPGRADE */
.topbar .logo {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .5px;
}

.topbar nav a {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .4px;
}

/* If you want a little more height */
.topbar nav a {
  padding: 8px 12px;
}

/* Mobile toggle alignment */
.nav-toggle {
  font-size: 0.9rem;
  padding: 8px 12px;
}

/* Mobile toolbar font/tap target overrides */
@media (max-width: 700px) {
  .topbar nav a {
    font-size: 1.05rem !important;
    font-weight: 600 !important;
    letter-spacing: 0.4px;
    padding: 12px 16px !important;
    line-height: 1.2;
  }
  .topbar .logo {
    font-size: 1.15rem !important;
    font-weight: 700;
  }
  .topbar.nav-open nav a {
    display:block;
    width:100%;
    border-bottom:1px solid #2d3a47;
  }
  .nav-toggle {
    font-size: 1rem !important;
    padding: 10px 16px !important;
  }
}

@media (max-width: 420px) {
  .topbar nav a {
    font-size: 1.1rem !important;
    padding: 14px 18px !important;
  }
  .nav-toggle {
    font-size: 1.05rem !important;
  }
}

/* Stock card view */
.stock-cards {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:14px;
  margin-bottom:30px;
}
.stock-card {
  background:#fff;
  border:1px solid #d1d5db;
  border-radius:10px;
  padding:12px 14px;
  box-shadow:0 1px 4px rgba(0,0,0,0.08);
  display:flex;
  flex-direction:column;
  font-size:.75rem;
}
.stock-card .sc-header {
  margin-bottom:8px;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.stock-card .sc-header strong {
  font-size:.85rem;
  color:#1f2937;
}
.stock-card .sc-row {
  display:flex;
  justify-content:space-between;
  border-bottom:1px dashed #e5e7eb;
  padding:2px 0;
}
.stock-card .sc-row:last-child { border-bottom:none; }
.stock-card mark {
  background:#fffa9c;
  padding:0 2px;
  border-radius:2px;
}
.card-empty {
  padding:20px;
  text-align:center;
  background:#fff;
  border:1px solid #d1d5db;
  border-radius:10px;
}

/* View toggle buttons */
.view-toggle {
  background:#374151;
  color:#fff;
  border:none;
  padding:10px 14px;
  font-size:.7rem;
  border-radius:8px;
  cursor:pointer;
}
.view-toggle[aria-pressed="true"] {
  background:#2563eb;
}

/* Dark mode adjustments */
body.dark .stock-card {
  background:#1e293b;
  border-color:#334155;
  color:#e5e7eb;
}
body.dark .stock-card .sc-row { border-bottom:1px dashed #475569; }
body.dark .view-toggle { background:#334155; }
body.dark .view-toggle[aria-pressed="true"] { background:#2563eb; }

/* Keep STOCK as a real table on mobile (no stacking), allow horizontal scroll */
#stock-table-wrapper {
  overflow-x: auto;
}

#stock-table {
  min-width: 900px; /* similar to invoice detail tables for readability */
}

/* Cancel the generic mobile stacking for the stock table only */
@media (max-width: 520px) {
  #stock-table thead { display: table-header-group !important; }
  #stock-table tbody tr { display: table-row !important; margin: 0 !important; border: none !important; }
  #stock-table tbody tr td {
    display: table-cell !important;
    border-bottom: 1px solid #e5e7eb !important;
    padding: 8px 10px; /* keep compact */
  }
  #stock-table tbody tr td::before { content: none !important; }
}

/* Make STOCK table header sticky while scrolling horizontally/vertically */
#stock-table-wrapper {
  overflow-x: auto;            /* horizontal scroll container */
  max-height: 70vh;            /* enable vertical scroll if table is tall */
}

#stock-table {
  min-width: 900px;            /* keep columns readable; adjust as needed */
  border-collapse: separate;   /* required for sticky headers in many browsers */
  border-spacing: 0;           /* remove extra gaps with separate collapse */
}

#stock-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;                  /* above body cells */
  background: #374151;         /* match your header color */
  color: #fff;
}

/* Optional: keep first column sticky too (Code) for long tables */
#stock-table tbody td:first-child,
#stock-table thead th:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: #fff;            /* body cell background */
}
body.dark #stock-table tbody td:first-child,
body.dark #stock-table thead th:first-child {
  background: #1e293b;         /* dark mode background */
}

/* Tidy borders when using sticky headers/columns */
#stock-table th, #stock-table td {
  border: 1px solid #e5e7eb;
}

/* Keep SM Performance as a real table on mobile, allow scrolling */
#smperf-table-wrapper {
  overflow-x: auto;         /* horizontal scroll if needed */
  max-height: 70vh;         /* optional: vertical scroll area */
}

#smperf-table {
  min-width: 800px;         /* adjust to fit your columns */
  border-collapse: separate;
  border-spacing: 0;
}

/* Cancel generic mobile stacking rules for this table only */
@media (max-width: 520px) {
  #smperf-table thead { display: table-header-group !important; }
  #smperf-table tbody tr { display: table-row !important; margin: 0 !important; border: none !important; }
  #smperf-table tbody td {
    display: table-cell !important;
    border-bottom: 1px solid #e5e7eb !important;
    padding: 8px 10px;
  }
  #smperf-table tbody td::before { content: none !important; }
}

/* Optional: sticky header so columns stay labeled while scrolling */
#smperf-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #374151;
  color: #fff;
}

/* Optional: tidy borders with sticky header */
#smperf-table th, #smperf-table td {
  border: 1px solid #e5e7eb;
}