/* ============================================
   Reusable Component Styles
   ============================================ */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--color-text-on-primary);
}
.btn-danger:hover {
  background: var(--color-danger-dark);
}

.btn-ghost {
  background: transparent;
  color: var(--navbar-text);
}
.btn-ghost:hover {
  background: var(--sidebar-hover);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* --- Inputs --- */
.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.input-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--sidebar-text-secondary);
}

.input-field {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--sidebar-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  color: var(--navbar-text);
  background: var(--color-bg-white);
  transition: border-color var(--transition-fast);
}

.input-field:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-alpha-10);
}

.input-field::placeholder {
  color: var(--sidebar-text-secondary);
}

/* --- Search Input with Icon --- */
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box .search-icon {
  position: absolute;
  left: var(--spacing-sm);
  color: var(--sidebar-text-secondary);
  font-size: var(--font-size-md);
  pointer-events: none;
}

.search-box .input-field {
  padding-left: var(--spacing-xxl);
  width: 100%;
}

/* --- Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxs) var(--spacing-sm);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  min-width: 20px;
}

.badge-primary {
  background: var(--color-primary-alpha-20);
  color: var(--color-primary-dark);
}

.badge-danger {
  background: var(--color-danger-light);
  color: var(--color-danger-dark);
}

.badge-success {
  background: #C8E6C9;
  color: var(--color-success-dark);
}

.badge-warning {
  background: #FFE0B2;
  color: var(--color-warning-dark);
}

/* --- Status Dot --- */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-round);
  display: inline-block;
  flex-shrink: 0;
}

.status-dot.online { background: var(--color-success); }
.status-dot.offline { background: var(--color-danger); }
.status-dot.idle { background: var(--color-warning); }
.status-dot.no-signal { background: var(--color-text-muted); }

/* --- Card --- */
.card {
  background: var(--color-bg-white);
  border: 1px solid var(--sidebar-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-divider);
}

.card-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--navbar-text);
}

/* --- Table --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  text-align: left;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--sidebar-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--sidebar-border);
  background: #fafafa;
}

.data-table td {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--navbar-text);
  border-bottom: 1px solid var(--color-divider);
}

.data-table tr:hover td {
  background: var(--sidebar-hover);
}

/* --- Modal --- */
.modal-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  min-width: 400px;
  max-width: 90vw;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-backdrop.active .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.modal-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: var(--font-size-lg);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.modal-close:hover {
  background: var(--sidebar-hover);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--sidebar-border);
}

/* --- Toast Notification --- */
.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  background: var(--navbar-text);
  color: white;
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s ease;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.toast.success { border-left: 3px solid var(--color-success); }
.toast.error { border-left: 3px solid var(--color-danger); }
.toast.info { border-left: 3px solid var(--color-info); }

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* --- Tooltip --- */
.tooltip-wrap {
  position: relative;
}

.tooltip-wrap::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--navbar-text);
  color: white;
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.tooltip-wrap:hover::after {
  opacity: 1;
  visibility: visible;
}

/* --- Loading Spinner --- */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--sidebar-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-round);
  animation: spin 0.6s linear infinite;
}

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

.loading-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.8);
  z-index: 50;
}

/* --- Empty State --- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxxl);
  color: var(--sidebar-text-secondary);
  text-align: center;
  gap: var(--spacing-md);
}

.empty-state-icon {
  font-size: 48px;
  opacity: 0.3;
}

/* ============================================
   Responsive Components
   ============================================ */

/* --- Mobile: Tables scroll horizontally --- */
@media (max-width: 768px) {
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 calc(-1 * var(--spacing-md));
    padding: 0 var(--spacing-md);
  }

  .data-table {
    min-width: 600px;
  }

  .data-table th,
  .data-table td {
    padding: var(--spacing-sm) var(--spacing-sm);
    font-size: var(--font-size-xs);
    white-space: nowrap;
  }
}

/* --- Mobile: Modal full-screen --- */
@media (max-width: 768px) {
  .modal-backdrop {
    align-items: flex-end;
  }

  .modal {
    min-width: 100%;
    max-width: 100%;
    max-height: 90vh;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--spacing-lg);
  }

  .modal-footer {
    flex-direction: column;
  }

  .modal-footer .btn {
    width: 100%;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
  }
}

/* --- Mobile: Toasts full width --- */
@media (max-width: 768px) {
  .toast-container {
    left: var(--spacing-sm);
    right: var(--spacing-sm);
    top: calc(var(--navbar-height, 52px) + var(--spacing-sm));
  }

  .toast {
    width: 100%;
  }
}

/* --- Mobile: Hide tooltips on touch --- */
@media (max-width: 768px) {
  .tooltip-wrap::after {
    display: none;
  }
}