/* ─── Blue Alpha Brand Colors ─────────────────────────────────────────────── */
:root {
  --navy:    #1B2438;
  --red:     #BD3333;
  --red-dk:  #7B2318;
  --cream:   #DDD8C4;
  --steel:   #5B7FA0;
  --white:   #FFFFFF;
  --gray-lt: #F4F4F4;
  --gray:    #CCCCCC;
  --gray-dk: #666666;

  /* Status colors */
  --status-draft:     #888888;
  --status-ordered:   #5B7FA0;
  --status-closed:    #2D8A4E;
  --status-cancelled: #BD3333;
  --status-unpaid:    #C97A1A;
  --status-partial:   #A89A10;
  --status-paid:      #2D8A4E;
  --status-open:      #C97A1A;
}

/* ─── Reset & Base ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--cream);
  color: #1a1a1a;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--steel); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Navbar ─────────────────────────────────────────────────────────────── */
.navbar {
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.navbar-brand {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}
.navbar-brand span { color: var(--red); }
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.navbar-nav a {
  color: rgba(255,255,255,0.8);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 13px;
  transition: background 0.15s;
}
.navbar-nav a:hover, .navbar-nav a.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
  text-decoration: none;
}
.navbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 16px;
  padding-left: 16px;
  border-left: 1px solid rgba(255,255,255,0.2);
}
.navbar-user .user-info {
  font-size: 13px;
  color: rgba(255,255,255,0.9);
  text-align: right;
}
.navbar-user .user-role {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ─── Layout ─────────────────────────────────────────────────────────────── */
.page-wrapper {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 20px;
}
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
}
.page-subtitle {
  font-size: 13px;
  color: var(--gray-dk);
  margin-top: 2px;
}

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08), 0 2px 12px rgba(0,0,0,0.04);
  margin-bottom: 20px;
  overflow: hidden;
}
.card-header {
  padding: 14px 20px;
  border-bottom: 1px solid #eee;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
}
.card-body { padding: 20px; }

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn:hover { text-decoration: none; }
.btn-primary   { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-dk); color: #fff; }
.btn-secondary { background: var(--steel); color: #fff; }
.btn-secondary:hover { background: #4a6a8a; color: #fff; }
.btn-outline   { background: transparent; color: var(--navy); border: 1px solid var(--gray); }
.btn-outline:hover { background: var(--gray-lt); }
.btn-danger    { background: var(--red-dk); color: #fff; }
.btn-danger:hover { background: #5a1a10; color: #fff; }
.btn-success   { background: #2D8A4E; color: #fff; }
.btn-success:hover { background: #236b3d; color: #fff; }
.btn-warning   { background: var(--status-unpaid); color: #fff; }
.btn-warning:hover { background: #a56412; color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-xs { padding: 3px 8px; font-size: 11px; }
.btn[disabled], .btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ─── Tables ─────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
thead th {
  background: var(--gray-lt);
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  color: var(--navy);
  white-space: nowrap;
  border-bottom: 2px solid var(--gray);
}
tbody tr { border-bottom: 1px solid #eee; }
tbody tr:last-child { border-bottom: none; }
tbody tr:nth-child(even) { background: #FAFAF8; }
tbody tr:hover { background: #F0EEE8; }
tbody td { padding: 10px 12px; vertical-align: middle; }
.tr-link { cursor: pointer; }

/* ─── Badges ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge-draft      { background: #e0e0e0; color: #555; }
.badge-ordered    { background: #d1e4f0; color: var(--status-ordered); }
.badge-closed     { background: #d1f0dd; color: var(--status-closed); }
.badge-cancelled  { background: #f0d1d1; color: var(--status-cancelled); }
.badge-unpaid     { background: #fde9c9; color: var(--status-unpaid); }
.badge-partial    { background: #fdf5c9; color: var(--status-partial); }
.badge-paid       { background: #d1f0dd; color: var(--status-paid); }
.badge-open       { background: #fde9c9; color: var(--status-open); }
.badge-needs      { background: #fde9c9; color: var(--status-unpaid); }
.badge-instock    { background: #d1f0dd; color: var(--status-closed); }

/* ─── Forms ──────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.form-control {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--gray);
  border-radius: 4px;
  font-size: 13px;
  background: #fff;
  transition: border-color 0.15s;
  color: #1a1a1a;
}
.form-control:focus {
  outline: none;
  border-color: var(--steel);
  box-shadow: 0 0 0 2px rgba(91,127,160,0.2);
}
select.form-control { cursor: pointer; }
.form-row {
  display: grid;
  gap: 16px;
}
.form-row-2 { grid-template-columns: 1fr 1fr; }
.form-row-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-row-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }
.form-hint { font-size: 11px; color: var(--gray-dk); margin-top: 3px; }

/* ─── Alerts / Flash ─────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: 5px;
  margin-bottom: 16px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.alert-success  { background: #d4edda; color: #155724; border-left: 4px solid #28a745; }
.alert-error    { background: #f8d7da; color: #721c24; border-left: 4px solid #dc3545; }
.alert-warning  { background: #fff3cd; color: #856404; border-left: 4px solid #ffc107; }
.alert-info     { background: #d1ecf1; color: #0c5460; border-left: 4px solid #17a2b8; }

/* ─── Modals (CSS-only, checkbox hack) ──────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(3px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-trigger:checked ~ .modal-overlay,
.modal-overlay:target {
  display: flex;
}
.modal-box {
  background: var(--white);
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  margin: 20px;
}
.modal-box.modal-lg { max-width: 800px; }
.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid #eee;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title { font-size: 16px; font-weight: 700; color: var(--navy); }
.modal-close {
  font-size: 20px;
  color: var(--gray-dk);
  cursor: pointer;
  text-decoration: none;
  line-height: 1;
  background: none;
  border: none;
  padding: 4px;
}
.modal-close:hover { color: var(--navy); }
.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid #eee;
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* Modal trigger via label+checkbox */
.modal-wrap { display: contents; }
input.modal-trigger { display: none; }

/* ─── Login ──────────────────────────────────────────────────────────────── */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  padding: 20px;
}
.login-box {
  background: var(--white);
  border-radius: 12px;
  padding: 40px 48px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-logo {
  text-align: center;
  margin-bottom: 28px;
}
.login-logo-text {
  font-size: 24px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: 0.5px;
}
.login-logo-text span { color: var(--red); }
.login-subtitle {
  font-size: 13px;
  color: var(--gray-dk);
  text-align: center;
  margin-bottom: 28px;
}
.login-btn {
  width: 100%;
  padding: 11px;
  font-size: 15px;
  margin-top: 4px;
}

/* ─── Dashboard specifics ────────────────────────────────────────────────── */
.supplier-group { margin-bottom: 28px; }
.supplier-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--navy);
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px 8px 0 0;
  flex-wrap: wrap;
  gap: 12px;
}
.supplier-group-name { font-weight: 700; font-size: 15px; }
.supplier-group-body {
  background: var(--white);
  border: 1px solid #ddd;
  border-top: none;
  border-radius: 0 0 8px 8px;
  overflow: hidden;
}
.qty-input {
  width: 90px;
  padding: 5px 8px;
  border: 1px solid var(--gray);
  border-radius: 4px;
  font-size: 13px;
  text-align: right;
}

/* ─── PO Detail ──────────────────────────────────────────────────────────── */
.po-header-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.po-meta-item { }
.po-meta-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--gray-dk);
  font-weight: 600;
  margin-bottom: 4px;
}
.po-meta-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
}
.action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px 20px;
  background: var(--gray-lt);
  border-bottom: 1px solid #eee;
}

/* ─── Filter tabs ────────────────────────────────────────────────────────── */
.filter-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.filter-tab {
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-dk);
  background: var(--white);
  border: 1px solid var(--gray);
  text-decoration: none;
  transition: all 0.15s;
}
.filter-tab:hover { background: var(--cream); text-decoration: none; }
.filter-tab.active {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

/* ─── Tracking inline form ───────────────────────────────────────────────── */
.tracking-form {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.tracking-form input {
  padding: 6px 10px;
  border: 1px solid var(--gray);
  border-radius: 4px;
  font-size: 13px;
  min-width: 200px;
}

/* ─── Users table ────────────────────────────────────────────────────────── */
.role-badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.role-admin    { background: #f0d1d1; color: var(--red-dk); }
.role-finance  { background: #d1e4f0; color: var(--status-ordered); }
.role-buyer    { background: #fde9c9; color: var(--status-unpaid); }
.role-receiver { background: #e0e0e0; color: #555; }

/* ─── Misc ────────────────────────────────────────────────────────────────── */
.text-muted  { color: var(--gray-dk); }
.text-right  { text-align: right; }
.text-center { text-align: center; }
.text-mono   { font-family: 'Courier New', monospace; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.gap-8 { gap: 8px; }
.flex  { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--gray-dk);
}
.empty-state-icon { font-size: 40px; margin-bottom: 12px; }
.empty-state-text { font-size: 15px; }
.divider { border: none; border-top: 1px solid #eee; margin: 20px 0; }

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .form-row-2, .form-row-3, .form-row-4 { grid-template-columns: 1fr; }
  .navbar { padding: 0 16px; }
  .navbar-nav { display: none; }
  .page-wrapper { padding: 16px 12px; }
  .po-header-grid { grid-template-columns: 1fr 1fr; }
  .card-header { flex-direction: column; align-items: flex-start; }
  .modal-box { margin: 10px; }
}
@media (max-width: 480px) {
  .login-box { padding: 28px 24px; }
  .po-header-grid { grid-template-columns: 1fr; }
}