/* ============================================================
   COMPONENTS — Buttons, Badges, Cards, Modals, Alerts
   ============================================================ */

/* ── Buttons ───────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 7px var(--sp-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition-fast), border-color var(--transition-fast),
              color var(--transition-fast), box-shadow var(--transition-fast),
              opacity var(--transition-fast);
  line-height: 1.5;
  user-select: none;
}

.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.btn:disabled, .btn[disabled], .btn.loading {
  opacity: .6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Sizes */
.btn-sm { padding: 4px var(--sp-3); font-size: var(--font-size-xs); }
.btn-lg { padding: 10px var(--sp-6); font-size: var(--font-size-base); }
.btn-icon { padding: 7px; width: 36px; height: 36px; }
.btn-icon.btn-sm { padding: 5px; width: 28px; height: 28px; }

/* Variants */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: #fff; text-decoration: none; }

.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-text-inverse);
  border-color: var(--color-secondary);
}
.btn-secondary:hover { background: var(--color-secondary-hover); border-color: var(--color-secondary-hover); color: #fff; text-decoration: none; }

.btn-success {
  background: var(--color-success);
  color: var(--color-text-inverse);
  border-color: var(--color-success);
}
.btn-success:hover { background: #15803d; border-color: #15803d; color: #fff; text-decoration: none; }

.btn-danger {
  background: var(--color-danger);
  color: var(--color-text-inverse);
  border-color: var(--color-danger);
}
.btn-danger:hover { background: #b91c1c; border-color: #b91c1c; color: #fff; text-decoration: none; }

.btn-warning {
  background: var(--color-warning);
  color: var(--color-text-inverse);
  border-color: var(--color-warning);
}
.btn-warning:hover { background: #b45309; border-color: #b45309; color: #fff; text-decoration: none; }

.btn-outline-primary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline-primary:hover { background: var(--color-primary-light); text-decoration: none; }

.btn-outline-secondary {
  background: transparent;
  color: var(--color-secondary);
  border-color: var(--color-border-strong);
}
.btn-outline-secondary:hover { background: var(--color-page-bg); text-decoration: none; }

.btn-outline-danger {
  background: transparent;
  color: var(--color-danger);
  border-color: var(--color-danger);
}
.btn-outline-danger:hover { background: var(--color-danger-light); text-decoration: none; }

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--color-page-bg); color: var(--color-text); text-decoration: none; }

/* Loading spinner inside button */
.btn-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin .6s linear infinite;
}
.btn .btn-spinner { display: none; }
.btn.loading .btn-spinner { display: inline-block; }
.btn.loading .btn-label { opacity: .7; }

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

/* ── Badges ────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 11.5px;
  font-weight: 700;
  border-radius: var(--radius-full);
  white-space: nowrap;
  gap: 4px;
  letter-spacing: .01em;
}

.badge-primary  { background: var(--color-primary-light); color: var(--color-primary); }
.badge-success  { background: var(--color-success-light); color: var(--color-success); }
.badge-warning  { background: var(--color-warning-light); color: var(--color-warning); }
.badge-danger   { background: var(--color-danger-light);  color: var(--color-danger);  }
.badge-info     { background: var(--color-info-light);    color: var(--color-info);    }
.badge-muted    { background: var(--color-page-bg);       color: var(--color-text-muted); }

/* ── Cards ─────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 8px rgba(15,23,42,.08), 0 0 0 1px rgba(15,23,42,.04);
  overflow: hidden;
}

.card-header {
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
  position: relative;
}

.card-header::before {
  content: '';
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 4px;
  height: 100%;
  background: var(--color-primary);
  border-radius: 0;
}

.card-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
  padding-inline-start: var(--sp-3);
}

.card-body { padding: var(--sp-5); }
.card-body-sm { padding: var(--sp-4); }
.card-footer {
  padding: var(--sp-4) var(--sp-5);
  border-top: 1px solid var(--color-border);
  background: var(--color-page-bg);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* KPI card */
.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5) var(--sp-6);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
}

.kpi-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.kpi-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: var(--sp-1);
}

.kpi-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

.kpi-change {
  font-size: var(--font-size-xs);
  margin-top: var(--sp-1);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── Alert / flash messages ────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-md);
  border: 1px solid;
  font-size: var(--font-size-sm);
  margin-bottom: var(--sp-4);
}

.alert-success {
  background: var(--color-success-light);
  border-color: #86efac;
  color: #14532d;
}
.alert-warning {
  background: var(--color-warning-light);
  border-color: #fcd34d;
  color: #78350f;
}
.alert-danger {
  background: var(--color-danger-light);
  border-color: #fca5a5;
  color: #7f1d1d;
}
.alert-info {
  background: var(--color-info-light);
  border-color: #7dd3fc;
  color: #0c4a6e;
}
.alert-primary {
  background: var(--color-primary-light);
  border-color: #93c5fd;
  color: #1e3a8a;
}

.alert-icon { flex-shrink: 0; font-size: 18px; margin-top: 1px; }
.alert-body { flex: 1; }
.alert-title { font-weight: 600; margin-bottom: 2px; }
.alert-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  color: currentColor;
  opacity: .6;
  padding: 0;
  line-height: 1;
  flex-shrink: 0;
}
.alert-close:hover { opacity: 1; }

/* Stub / warning banner */
.stub-banner {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--color-warning-light);
  border: 1px solid #fcd34d;
  border-radius: var(--radius-md);
  color: #78350f;
  font-size: var(--font-size-sm);
  margin-bottom: var(--sp-4);
}

/* ── Toast ─────────────────────────────────────── */
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: var(--font-size-sm);
  min-width: 280px;
  animation: toast-in var(--transition-base) forwards;
}

.toast.toast-success { border-left: 4px solid var(--color-success); }
.toast.toast-danger  { border-left: 4px solid var(--color-danger);  }
.toast.toast-warning { border-left: 4px solid var(--color-warning); }
.toast.toast-info    { border-left: 4px solid var(--color-info);    }

.toast-icon  { flex-shrink: 0; font-size: 18px; margin-top: 1px; }
.toast-body  { flex: 1; }
.toast-title { font-weight: 600; margin-bottom: 2px; }
.toast-close { background: none; border: none; cursor: pointer; color: var(--color-text-muted); padding: 0; font-size: 16px; }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

.toast.removing {
  animation: toast-out var(--transition-base) forwards;
}
@keyframes toast-out {
  from { opacity: 1; transform: translateX(0); max-height: 100px; margin-bottom: 8px; }
  to   { opacity: 0; transform: translateX(20px); max-height: 0; margin-bottom: 0; overflow: hidden; }
}

/* ── Dropdown menus ────────────────────────────── */
.dropdown-menu {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--sp-2) 0;
  min-width: 180px;
  font-size: var(--font-size-sm);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  color: var(--color-text);
  text-decoration: none;
  background: none;
  border: none;
  width: 100%;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.dropdown-item:hover { background: var(--color-page-bg); color: var(--color-text); text-decoration: none; }
.dropdown-item.danger { color: var(--color-danger); }
.dropdown-item.danger:hover { background: var(--color-danger-light); }

.dropdown-divider { border-top: 1px solid var(--color-border); margin: var(--sp-2) 0; }
.dropdown-header { padding: var(--sp-2) var(--sp-4); font-size: var(--font-size-xs); font-weight: 700; color: var(--color-text-muted); text-transform: uppercase; }

/* ── Modal ─────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
  animation: fade-in var(--transition-base);
}

.modal-box {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 480px;
  width: 100%;
  animation: modal-in var(--transition-base);
}

.modal-header {
  padding: var(--sp-4) var(--sp-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title { font-size: var(--font-size-lg); font-weight: 600; margin: 0; }
.modal-close { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--color-text-muted); padding: 0; line-height: 1; }
.modal-close:hover { color: var(--color-text); }

.modal-body { padding: var(--sp-6); }
.modal-footer {
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-3);
}

@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes modal-in { from { opacity: 0; transform: scale(.95) translateY(-10px); } to { opacity: 1; transform: scale(1) translateY(0); } }

/* ── Empty state ───────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--sp-10) var(--sp-6);
  text-align: center;
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--sp-4);
  opacity: .4;
}
.empty-state-title { font-size: var(--font-size-lg); font-weight: 600; color: var(--color-text); margin-bottom: var(--sp-2); }
.empty-state-desc  { font-size: var(--font-size-sm); color: var(--color-text-muted); margin-bottom: var(--sp-5); max-width: 360px; }

/* ── Skeleton loader ───────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--color-border) 25%, var(--color-surface-hover) 50%, var(--color-border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-md);
}

.skeleton-text { height: 14px; margin-bottom: var(--sp-2); }
.skeleton-text:last-child { width: 60%; }
.skeleton-rect { height: 40px; }
.skeleton-avatar { width: 40px; height: 40px; border-radius: var(--radius-full); }
.skeleton-kpi { height: 80px; border-radius: var(--radius-lg); }

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ── Language switcher ─────────────────────────── */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: var(--color-page-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

.lang-btn {
  padding: 2px var(--sp-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}
.lang-btn.active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* ── Select2 overrides ─────────────────────────── */
.select2-container--default .select2-selection--single {
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: 0 8px;
}
.select2-container--default .select2-selection--single .select2-selection__rendered {
  line-height: 34px;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  padding: 0;
}
.select2-container--default .select2-selection--single .select2-selection__arrow {
  height: 34px;
}
.select2-container--default.select2-container--focus .select2-selection--single {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(47,101,167,.12);
}
.select2-dropdown {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}
.select2-container--default .select2-results__option--highlighted.select2-results__option--selectable {
  background: var(--color-primary);
}
.select2-search--dropdown .select2-search__field {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 5px 8px;
  font-size: var(--font-size-sm);
}

/* ── Divider with label ────────────────────────── */
.divider-label {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin: var(--sp-5) 0;
}
.divider-label::before, .divider-label::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--color-border);
}

/* ============================================================
   GLOBAL CARD STYLE — consistent across ALL screens
   Targets: .card, .table-card, .kpi-card, .filter-card,
            .form-section-card, .invoice-header-card,
            .invoice-lines-card, .dashboard-card, .stat-card,
            .report-card, .info-card, .summary-card
   ============================================================ */
.card,
.table-card,
.filter-card,
.form-section-card,
.invoice-header-card,
.invoice-lines-card,
.dashboard-card,
.stat-card,
.report-card,
.info-card,
.summary-card {
  background: #fff !important;
  border-radius: 16px !important;
  box-shadow: 0 2px 16px rgba(0, 0, 0, .06) !important;
  border: 1px solid #f1f5f9 !important;
  margin-bottom: 1.5rem !important;
  overflow: hidden !important;
}

/* KPI cards get the same base but no forced bottom margin
   (they live inside a grid with its own gap) */
.kpi-card {
  background: #fff !important;
  border-radius: 16px !important;
  box-shadow: 0 2px 16px rgba(0, 0, 0, .06) !important;
  border: 1px solid #f1f5f9 !important;
  overflow: hidden;
}

/* Preserve hover lift on interactive cards */
.card:hover,
.kpi-card:hover,
.dashboard-card:hover,
.stat-card:hover {
  box-shadow: 0 8px 28px rgba(0, 0, 0, .10) !important;
  transform: translateY(-2px);
  transition: box-shadow .2s, transform .2s;
}

/* card-body padding */
.card .card-body { padding: 1.5rem; }
.card .card-header {
  padding: .875rem 1.5rem;
  background: transparent;
  border-bottom: 1px solid #f1f5f9;
  font-weight: 600;
}

/* ── Global Loading Overlay ────────────────────────────────────── */
.global-loader-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65); /* Sleek slate glassmorphism */
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 999999; /* Higher than everything */
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  gap: 1.25rem;
}

.global-loader-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.global-loader-spinner {
  width: 56px;
  height: 56px;
  border: 4.5px solid rgba(255, 255, 255, 0.15);
  border-top-color: #fff;
  border-radius: 50%;
  animation: global-spinner-spin 0.85s linear infinite;
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.global-loader-text {
  color: #fff;
  font-family: 'Cairo', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
  letter-spacing: 0.02em;
}

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

.text-white-75 { color: rgba(255, 255, 255, 0.88) !important; }
.text-white-50 { color: rgba(255, 255, 255, 0.65) !important; }
.hover-text-white:hover { color: #ffffff !important; }

.fs-8 { font-size: 0.75rem !important; }
.fs-9 { font-size: 0.6875rem !important; }
.py-1-5 { padding-top: 0.375rem !important; padding-bottom: 0.375rem !important; }
.tracking-wider { letter-spacing: 0.05em !important; }
.bg-gradient-primary { background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%) !important; }
.hover-bg-dark:hover { background: rgba(255, 255, 255, 0.06) !important; }
.transition-transform { transition: transform 0.25s ease !important; }