/* ============================================
   Components — Panels, Buttons, Inputs, etc.
   ============================================ */

/* === Panel card === */
.panel {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.panel:hover {
  border-color: var(--color-border-subtle);
}

.panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border-subtle);
}

.panel__title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-base);
  font-weight: 600;
}

.panel__icon {
  width: 18px;
  height: 18px;
  opacity: 0.7;
}

.panel__body {
  padding: var(--space-lg);
}

.panel__footer {
  padding: var(--space-sm) var(--space-lg);
  border-top: 1px solid var(--color-border-subtle);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* === Status dot === */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot--connected { background: var(--color-success); box-shadow: 0 0 6px var(--color-success); }
.status-dot--disconnected { background: var(--color-error); }
.status-dot--connecting { background: var(--color-warning); animation: pulse-dot 1.5s ease infinite; }
.status-dot--idle { background: var(--color-text-muted); }

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
}

.btn--primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn--secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-text-muted);
  background: var(--color-bg-surface-hover);
}

.btn--danger {
  background: transparent;
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.btn--danger:hover {
  background: rgba(255, 82, 82, 0.1);
}

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

.btn--icon {
  padding: var(--space-sm);
  border-radius: var(--radius-md);
}

/* === Inputs === */
.input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-input);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast);
}

.input:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.input::placeholder {
  color: var(--color-text-muted);
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.input-group__label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.input-row {
  display: flex;
  gap: var(--space-sm);
}

.input-row > * {
  flex: 1;
}

/* === Badge === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
  background: var(--color-accent-dim);
  color: var(--color-accent-text);
}

.badge--warning {
  background: rgba(255, 193, 7, 0.15);
  color: var(--color-warning);
}

.badge--error {
  background: rgba(255, 82, 82, 0.15);
  color: var(--color-error);
}

/* === Table === */
.table-wrap {
  overflow-x: auto;
}

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

th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  user-select: none;
}

th:hover {
  color: var(--color-text-secondary);
}

td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border-subtle);
  font-size: var(--font-size-sm);
}

tr:hover td {
  background: var(--color-bg-surface-hover);
}

/* === Empty state === */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-2xl);
  text-align: center;
  color: var(--color-text-muted);
}

.empty-state__icon {
  width: 48px;
  height: 48px;
  opacity: 0.3;
}

.empty-state__message {
  font-size: var(--font-size-sm);
  max-width: 280px;
}

/* === Breadcrumbs === */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding-bottom: var(--space-md);
  flex-wrap: wrap;
}

.breadcrumbs__item {
  cursor: pointer;
  transition: color var(--transition-fast);
}

.breadcrumbs__item:hover {
  color: var(--color-accent-text);
}

.breadcrumbs__separator {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.breadcrumbs__current {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* === Toast === */
.toast-container {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 1000;
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-sm);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toast-in var(--transition-base) ease forwards;
}

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

.toast--exit {
  animation: toast-out var(--transition-fast) ease forwards;
}

/* === Modal / Lightbox === */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fade-in var(--transition-fast) ease;
}

.modal {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
  box-shadow: var(--shadow-lg);
  animation: scale-in var(--transition-base) ease;
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border-subtle);
}

.modal__body {
  padding: var(--space-lg);
}

.modal__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.modal__close:hover {
  background: var(--color-bg-surface-hover);
  color: var(--color-text-primary);
}

/* Lightbox mode */
.modal--lightbox {
  background: transparent;
  border: none;
}

.modal--lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

/* === Drag/Drop Zone === */
.drop-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.drop-zone--active {
  border-color: var(--color-accent);
  background: var(--color-accent-dim);
  color: var(--color-accent-text);
}

/* === Progress bar === */
.progress {
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress__bar {
  height: 100%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

/* === Link Card === */
.link-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-surface-hover);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  color: var(--color-text-primary);
}

.link-card:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-dim);
  color: var(--color-text-primary);
}

.link-card__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.link-card__icon svg {
  width: 20px;
  height: 20px;
  fill: var(--color-accent);
}

.link-card__label {
  font-weight: 500;
  font-size: var(--font-size-sm);
}

.link-card__desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}