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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #16a34a;
  --success-light: #f0fdf4;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --sidebar-w: 240px;
  --header-h: 56px;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body { font-family: var(--font); font-size: 14px; color: var(--gray-800); background: var(--gray-50); }

/* ─── Layout ────────────────────────────────────────────────────────────────── */
#app { min-height: 100vh; }

.app-layout { display: flex; min-height: 100vh; }

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

.sidebar-logo {
  padding: 16px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-logo span { font-size: 22px; }

.sidebar-section { padding: 8px 0; }
.sidebar-label {
  padding: 4px 16px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--gray-400);
  margin-top: 8px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  color: var(--gray-300);
  text-decoration: none;
  font-size: 13.5px;
  transition: background .15s, color .15s;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.sidebar-link:hover { background: rgba(255,255,255,.08); color: #fff; }
.sidebar-link.active { background: var(--primary); color: #fff; }
.sidebar-link .icon { font-size: 16px; width: 20px; text-align: center; }

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

.topbar {
  height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-title { font-size: 16px; font-weight: 600; color: var(--gray-800); }

.topbar-user {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-600);
  font-size: 13px;
}

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

/* ─── Cards ─────────────────────────────────────────────────────────────────── */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title { font-size: 15px; font-weight: 600; color: var(--gray-800); }
.card-body { padding: 20px; }

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

.kpi-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.kpi-label { font-size: 12px; color: var(--gray-500); font-weight: 500; text-transform: uppercase; letter-spacing: .04em; }
.kpi-value { font-size: 26px; font-weight: 700; color: var(--gray-900); margin: 4px 0; }
.kpi-sub { font-size: 12px; color: var(--gray-400); }
.kpi-card.danger .kpi-value { color: var(--danger); }
.kpi-card.warning .kpi-value { color: var(--warning); }
.kpi-card.success .kpi-value { color: var(--success); }

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

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--gray-200);
  background: var(--gray-50);
}
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 td { background: var(--gray-50); }
tbody tr { cursor: pointer; }

.text-right { text-align: right; }
.text-center { text-align: center; }
.mono { font-family: monospace; font-size: 13px; }

/* ─── Badges / Status ───────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.badge-draft     { background: var(--gray-100);    color: var(--gray-600); }
.badge-confirmed { background: var(--primary-light); color: var(--primary); }
.badge-issued    { background: var(--primary-light); color: var(--primary); }
.badge-invoiced  { background: #f0fdf4; color: #15803d; }
.badge-paid      { background: var(--success-light); color: var(--success); }
.badge-cancelled { background: var(--danger-light); color: var(--danger); }
.badge-active    { background: var(--success-light); color: var(--success); }
.badge-depleted  { background: var(--gray-100); color: var(--gray-500); }
.badge-expired   { background: var(--danger-light); color: var(--danger); }
.badge-quarantine { background: var(--warning-light); color: var(--warning); }
.badge-sent      { background: #fef9c3; color: #854d0e; }
.badge-received  { background: var(--success-light); color: var(--success); }
.badge-partially_received { background: var(--warning-light); color: var(--warning); }
.badge-partially_paid { background: var(--warning-light); color: var(--warning); }

/* ─── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .15s;
  text-decoration: none;
}

.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); }
.btn-secondary { background: #fff; color: var(--gray-700); border-color: var(--gray-300); }
.btn-secondary:hover:not(:disabled) { background: var(--gray-50); }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover:not(:disabled) { background: #b91c1c; }
.btn-success { background: var(--success); color: #fff; border-color: var(--success); }
.btn-success:hover:not(:disabled) { background: #15803d; }
.btn-warning { background: var(--warning); color: #fff; border-color: var(--warning); }
.btn-warning:hover:not(:disabled) { background: #b45309; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-icon { padding: 6px; }

kbd {
  display: inline-block;
  padding: 1px 5px;
  border: 1px solid var(--gray-300);
  border-radius: 3px;
  background: var(--gray-100);
  font-size: 11px;
  font-family: monospace;
  color: var(--gray-600);
  line-height: 1.4;
}

/* ─── Forms ─────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; color: var(--gray-700); margin-bottom: 5px; }
.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 14px;
  color: var(--gray-800);
  background: #fff;
  transition: border-color .15s;
  font-family: var(--font);
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.form-control.error { border-color: var(--danger); }
.form-hint { font-size: 12px; color: var(--gray-400); margin-top: 4px; }
.form-error { font-size: 12px; color: var(--danger); margin-top: 4px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 30px; }

/* ─── Modal ─────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}

.modal {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-lg { max-width: 800px; }
.modal-xl { max-width: 1000px; }

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title { font-size: 15px; font-weight: 600; }
.modal-close { background: none; border: none; cursor: pointer; color: var(--gray-400); font-size: 20px; padding: 2px; }
.modal-close:hover { color: var(--gray-700); }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer { padding: 14px 20px; border-top: 1px solid var(--gray-200); display: flex; gap: 8px; justify-content: flex-end; }

/* ─── Pagination ────────────────────────────────────────────────────────────── */
.pagination { display: flex; align-items: center; gap: 4px; justify-content: center; margin-top: 20px; }
.page-btn {
  padding: 5px 10px;
  border: 1px solid var(--gray-300);
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
  color: var(--gray-600);
  min-width: 34px;
  text-align: center;
}
.page-btn:hover:not(:disabled) { background: var(--gray-50); }
.page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-btn:disabled { opacity: .4; cursor: not-allowed; }

/* ─── Toast ─────────────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  font-size: 13.5px;
  max-width: 360px;
  animation: slideIn .2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast-success { background: var(--success); color: #fff; }
.toast-error   { background: var(--danger);  color: #fff; }
.toast-info    { background: var(--primary);  color: #fff; }
.toast-warning { background: var(--warning);  color: #fff; }

@keyframes slideIn { from { transform: translateX(110%); opacity: 0; } to { transform: none; opacity: 1; } }

/* ─── Loading ───────────────────────────────────────────────────────────────── */
.loading-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-row td { text-align: center; color: var(--gray-400); padding: 40px !important; }
.empty-row td { text-align: center; color: var(--gray-400); padding: 40px !important; font-style: italic; }

/* ─── Search bar ────────────────────────────────────────────────────────────── */
.search-bar { position: relative; }
.search-bar input { padding-left: 32px; }
.search-bar::before {
  content: '🔍';
  position: absolute;
  left: 9px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  pointer-events: none;
}

/* ─── Filters bar ───────────────────────────────────────────────────────────── */
.filters { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.filters .form-control { width: auto; min-width: 160px; }

/* ─── Alert boxes ───────────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13.5px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.alert-warning { background: var(--warning-light); color: #78350f; border: 1px solid #fde68a; }
.alert-danger  { background: var(--danger-light);  color: #7f1d1d; border: 1px solid #fca5a5; }
.alert-info    { background: var(--primary-light);  color: #1e3a8a; border: 1px solid #bfdbfe; }

/* ─── Section title ─────────────────────────────────────────────────────────── */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.page-title { font-size: 20px; font-weight: 700; color: var(--gray-900); }
.page-subtitle { font-size: 13px; color: var(--gray-500); margin-top: 2px; }

/* ─── Detail layout ─────────────────────────────────────────────────────────── */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.detail-item label { font-size: 11px; font-weight: 600; color: var(--gray-400); text-transform: uppercase; letter-spacing: .04em; }
.detail-item p { font-size: 14px; color: var(--gray-800); margin-top: 2px; }

/* ─── Login page ────────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
}

.login-box {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo h1 { font-size: 24px; font-weight: 800; color: var(--primary); }
.login-logo p { color: var(--gray-500); font-size: 13px; margin-top: 4px; }

/* ─── Items table in forms ──────────────────────────────────────────────────── */
.items-table { width: 100%; border-collapse: collapse; margin-bottom: 12px; }
.items-table th { padding: 8px 10px; font-size: 11px; font-weight: 600; text-transform: uppercase; color: var(--gray-500); background: var(--gray-50); border-bottom: 1px solid var(--gray-200); }
.items-table td { padding: 6px 10px; border-bottom: 1px solid var(--gray-100); }
.items-table input, .items-table select { width: 100%; padding: 5px 8px; border: 1px solid var(--gray-300); border-radius: 4px; font-size: 13px; }
.items-table input:focus, .items-table select:focus { outline: none; border-color: var(--primary); }
.items-table .btn-remove { background: none; border: none; color: var(--danger); cursor: pointer; padding: 4px; font-size: 16px; }

/* ─── Totals row ────────────────────────────────────────────────────────────── */
.totals-block { text-align: right; padding: 12px 0; border-top: 1px solid var(--gray-200); }
.totals-row { display: flex; justify-content: flex-end; gap: 20px; align-items: center; margin-bottom: 4px; }
.totals-row.total-final { font-weight: 700; font-size: 16px; }
.totals-label { color: var(--gray-600); font-size: 13px; min-width: 100px; text-align: right; }
.totals-value { min-width: 100px; text-align: right; font-size: 13px; }

/* ─── Tabs ──────────────────────────────────────────────────────────────────── */
.tabs { display: flex; border-bottom: 1px solid var(--gray-200); margin-bottom: 20px; }
.tab-btn { padding: 10px 18px; border: none; background: none; cursor: pointer; font-size: 13.5px; color: var(--gray-500); border-bottom: 2px solid transparent; margin-bottom: -1px; font-family: var(--font); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-btn:hover:not(.active) { color: var(--gray-700); }

/* ─── TomSelect Tweaks ──────────────────────────────────────────────────────── */
.ts-control {
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  padding: 8px 12px;
  font-family: var(--font);
  font-size: 14px;
  box-shadow: none;
  min-height: 38px;
}
.ts-control.focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37,99,235,0.1);
}
.ts-dropdown {
  font-family: var(--font);
  font-size: 13.5px;
  border-radius: 6px;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-md);
  margin-top: 4px;
}
.ts-dropdown .option {
  padding: 8px 12px;
}
.ts-dropdown .active {
  background-color: var(--primary-light);
  color: var(--primary-dark);
}

/* ─── Scrollable sidebar on mobile ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s; }
  .sidebar.open { transform: none; }
  .main-content { margin-left: 0; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
}