:root {
  --brand: #0256d1;
  --brand-dark: #082e63;
  --brand-darker: #061f45;
  --brand-light: #eaf1ff;
  --bg: #f4f6fa;
  --card: #ffffff;
  --text: #1a2233;
  --muted: #64748b;
  --border: #e3e8f0;
  --success: #16a34a;
  --success-bg: #e7f8ee;
  --warning: #d97706;
  --warning-bg: #fdf3e3;
  --danger: #dc2626;
  --danger-bg: #fdeaea;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(10, 30, 70, 0.07), 0 1px 2px rgba(10, 30, 70, 0.05);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0; height: 100%;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

button, input, select, textarea { font-family: inherit; font-size: 14px; }

.app-shell {
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
  width: 232px;
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--brand-dark), var(--brand-darker));
  color: #fff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 20;
  transition: width 0.18s ease;
}

.sidebar.collapsed { width: 64px; }

.sidebar-toggle {
  position: absolute;
  left: -13px;
  top: 20px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  border: 2px solid var(--brand-darker);
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 21;
}
.sidebar-toggle:hover { background: #0447ac; }

/* ---------- Mobile hamburger + backdrop ---------- */
.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 38px;
  height: 38px;
  font-size: 18px;
  cursor: pointer;
  color: var(--text);
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8, 20, 45, 0.45);
  z-index: 15;
}
.sidebar-backdrop.show { display: block; }

.brand {
  padding: 22px 18px 16px;
  display: flex;
  justify-content: center;
}

.brand-logo {
  width: 100%;
  max-width: 170px;
  height: auto;
  background: #fff;
  border-radius: 8px;
  padding: 8px;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.8);
  text-align: right;
  padding: 11px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14.5px;
  transition: background 0.15s, color 0.15s;
}

.nav-item:hover { background: rgba(255,255,255,0.08); color: #fff; }

.nav-item.active {
  background: var(--brand);
  color: #fff;
  font-weight: 600;
}

.nav-icon { font-size: 15px; opacity: 0.9; flex-shrink: 0; }

.nav-item.hidden { display: none; }

.sidebar.collapsed .nav-item { justify-content: center; padding: 11px 8px; }
.sidebar.collapsed .nav-label,
.sidebar.collapsed .brand-logo,
.sidebar.collapsed .sidebar-user .u-name,
.sidebar.collapsed .sidebar-user .u-role,
.sidebar.collapsed .sidebar-footer,
.sidebar.collapsed .logout-btn span.lbl { display: none; }
.sidebar.collapsed .brand { padding: 22px 6px 16px; }
.sidebar.collapsed .sidebar-user { text-align: center; padding: 12px 6px; }
.sidebar.collapsed .logout-btn { font-size: 15px; padding: 6px; }

.sidebar-footer {
  padding: 14px 18px;
  font-size: 11.5px;
  color: rgba(255,255,255,0.45);
  border-top: 1px solid rgba(255,255,255,0.1);
}

/* ---------- Main content ---------- */
.content {
  margin-right: 232px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-right 0.18s ease;
}

.content.sidebar-collapsed { margin-right: 64px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
}

.topbar h1 { font-size: 19px; margin: 0; font-weight: 700; }

.view-root { padding: 24px 28px 60px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
  transition: all 0.15s;
}
.btn:hover { border-color: var(--brand); color: var(--brand); }

.btn:disabled, .btn:disabled:hover {
  opacity: 0.5;
  cursor: not-allowed;
  border-color: var(--border);
  color: var(--muted);
  background: #f1f2f5;
}
.btn-primary:disabled, .btn-primary:disabled:hover {
  background: #c7d2e0;
  border-color: #c7d2e0;
  color: #fff;
  opacity: 0.7;
}

.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.btn-primary:hover { background: #0447ac; color: #fff; }

.btn-danger { color: var(--danger); }
.btn-danger:hover { border-color: var(--danger); background: var(--danger-bg); }

.btn-sm { padding: 5px 10px; font-size: 12.5px; }

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

.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  border-top: 3px solid var(--brand);
}

.stat-card .stat-value { font-size: 28px; font-weight: 800; color: var(--brand-dark); }
.stat-card .stat-label { font-size: 13px; color: var(--muted); margin-top: 4px; }

.panel {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}
.panel h3 { margin: 0 0 14px; font-size: 15px; }

/* ---------- Tables ---------- */
.table-wrap {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

table { width: 100%; border-collapse: collapse; }

thead th {
  text-align: right;
  font-size: 12.5px;
  color: var(--muted);
  text-transform: none;
  padding: 12px 16px;
  background: #fafbfd;
  border-bottom: 1px solid var(--border);
  font-weight: 700;
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafcff; }

.empty-row td { text-align: center; color: var(--muted); padding: 40px; }

/* ---------- Toolbar / search ---------- */
.toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 220px;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}
.search-input:focus { outline: none; border-color: var(--brand); }

select.filter-select {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: var(--brand-light);
  color: var(--brand);
}
.badge.success { background: var(--success-bg); color: var(--success); }
.badge.warning { background: var(--warning-bg); color: var(--warning); }
.badge.muted { background: #f1f2f5; color: var(--muted); }

/* ---------- Forms ---------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.form-grid.full { grid-template-columns: 1fr; }

.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.field input, .field select, .field textarea {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--brand); }
.field textarea { resize: vertical; min-height: 70px; }
.field.checkbox { flex-direction: row; align-items: center; gap: 8px; }
.field.checkbox label { font-size: 13px; color: var(--text); }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(8, 20, 45, 0.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 50;
}
.modal-backdrop.hidden { display: none; }

.modal {
  background: #fff;
  border-radius: 14px;
  width: 560px;
  max-width: calc(100vw - 32px);
  max-height: calc(100vh - 60px);
  overflow-y: auto;
  padding: 24px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}

.modal h2 { margin: 0 0 18px; font-size: 17px; }

.modal-actions {
  display: flex; justify-content: flex-end; gap: 10px;
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border);
}

/* ---------- Detail / WO view ---------- */
.detail-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 20px;
}
@media (max-width: 980px) { .detail-grid { grid-template-columns: 1fr; } }

.kv-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 13.5px; }
.kv-row:last-child { border-bottom: none; }
.kv-row .k { color: var(--muted); }
.kv-row .v { font-weight: 600; }

.mini-table td, .mini-table th { padding: 8px 10px; font-size: 13px; }

.link-btn { background: none; border: none; color: var(--brand); cursor: pointer; font-weight: 700; padding: 0; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--brand-darker); color: #fff;
  padding: 12px 22px; border-radius: 999px; font-size: 13.5px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25); z-index: 100;
}
.toast.error { background: var(--danger); }
.toast.hidden { display: none; }

.text-muted { color: var(--muted); font-size: 13px; }
.mt-16 { margin-top: 16px; }

/* ---------- Login screen ---------- */
.login-screen {
  position: fixed; inset: 0;
  background: linear-gradient(160deg, var(--brand-dark), var(--brand-darker));
  display: flex; align-items: center; justify-content: center;
  z-index: 200;
}
.login-screen.hidden { display: none; }

.login-box {
  background: #fff;
  border-radius: 16px;
  padding: 36px 34px;
  width: 360px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
  text-align: center;
}
.login-logo { max-width: 170px; margin-bottom: 18px; }
.login-box h2 { margin: 0 0 20px; font-size: 18px; }
.login-box form { text-align: right; }
.login-btn { width: 100%; justify-content: center; margin-top: 20px; padding: 11px; font-size: 14.5px; }
.track-link {
  display: block; text-align: center; margin-top: 18px; font-size: 13px;
  color: var(--brand); text-decoration: none; font-weight: 600;
}
.track-link:hover { text-decoration: underline; }
.login-error {
  background: var(--danger-bg); color: var(--danger);
  padding: 9px 12px; border-radius: 8px; font-size: 13px; margin-top: 14px;
}
.login-error.hidden { display: none; }

.app-shell.hidden { display: none; }

/* ---------- Sidebar user block ---------- */
.sidebar-user {
  padding: 12px 18px;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
  font-size: 12.5px;
}
.sidebar-user .u-name { font-weight: 700; font-size: 13.5px; color: #fff; }
.sidebar-user .u-role { color: rgba(255,255,255,0.55); margin-top: 1px; }
.sidebar-user .logout-btn {
  margin-top: 8px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  color: #fff; padding: 6px 10px; border-radius: 6px; cursor: pointer; font-size: 12px; width: 100%;
}
.sidebar-user .logout-btn:hover { background: rgba(255,255,255,0.16); }

/* ============================================================
   الاستجابة للموبايل (Responsive)
   ============================================================ */
@media (max-width: 900px) {
  .mobile-menu-btn { display: flex; }
  .sidebar-toggle { display: none; }

  .sidebar {
    width: 250px;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    box-shadow: -8px 0 24px rgba(0,0,0,0.2);
  }
  .sidebar.mobile-open { transform: translateX(0); }
  .sidebar.collapsed { width: 250px; }
  .sidebar.collapsed .nav-label,
  .sidebar.collapsed .brand-logo,
  .sidebar.collapsed .sidebar-user .u-name,
  .sidebar.collapsed .sidebar-user .u-role,
  .sidebar.collapsed .sidebar-footer,
  .sidebar.collapsed .logout-btn span.lbl { display: initial; }
  .sidebar.collapsed .nav-item { justify-content: flex-start; padding: 11px 14px; }
  .sidebar.collapsed .brand { padding: 22px 18px 16px; }
  .sidebar.collapsed .sidebar-user { text-align: right; padding: 12px 18px; }

  .content { margin-right: 0; }

  .topbar {
    padding: 14px 16px;
    gap: 10px;
  }
  .topbar h1 { font-size: 16.5px; }
  .topbar-actions { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; }

  .view-root { padding: 14px 14px 50px; }

  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-card { padding: 14px 14px; }
  .stat-card .stat-value { font-size: 21px; }

  .form-grid { grid-template-columns: 1fr; }

  .toolbar { flex-direction: column; align-items: stretch; }

  table { font-size: 12.5px; }
  th, td { padding: 8px 9px; white-space: nowrap; }
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

  .modal {
    width: calc(100vw - 20px);
    max-width: calc(100vw - 20px);
    max-height: calc(100vh - 40px);
    padding: 18px;
    border-radius: 12px;
  }

  .detail-grid { grid-template-columns: 1fr; }

  .login-box { padding: 28px 22px; width: calc(100vw - 32px); }
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .topbar h1 { font-size: 15px; }
  .btn { padding: 8px 12px; font-size: 12.5px; }
  .brand-logo { max-width: 130px; }
}