/* Страница «Система» — кастомные контролы и логи */

.system-page {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 100%;
}

.system-page .card {
  background: linear-gradient(145deg, rgba(18, 26, 40, 0.95), rgba(12, 18, 30, 0.98));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.system-page .card-title {
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.card-header-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

/* Воркер */
.system-worker-card .system-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.system-worker-status {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 0.85rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin: 0.5rem 0 1rem;
}

.system-worker-status .lamp {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.system-action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.system-page .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.system-page .btn-primary {
  background: linear-gradient(135deg, #3b82f6, #6366f1);
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.system-page .btn-primary:hover:not(:disabled) {
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.45);
  transform: translateY(-1px);
}

.system-page .btn-ghost {
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
}

.system-page .btn-ghost:hover:not(:disabled) {
  border-color: rgba(99, 102, 241, 0.5);
  background: var(--accent-soft);
}

.system-feedback {
  min-height: 1.25rem;
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.system-feedback.is-ok {
  color: var(--ok);
}

.system-feedback.is-err {
  color: var(--err);
}

/* Метрики */
.system-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.65rem;
}

.system-page .metric-tile {
  position: relative;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.85rem;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}

.system-page .metric-tile::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.6;
}

.system-page .metric-tile:hover {
  border-color: rgba(59, 130, 246, 0.35);
  transform: translateY(-1px);
}

.system-page .metric-tile span {
  color: var(--text-dim);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.system-page .metric-tile strong {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.system-backend-hint {
  margin-top: 0.85rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  background: rgba(59, 130, 246, 0.06);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}

/* Панель логов */
.system-logs-card .logs-toolbar {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.85rem 1rem;
  padding: 1rem;
  margin-bottom: 0.75rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.sys-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.sys-field-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

/* Select */
.sys-select-wrap {
  position: relative;
  display: block;
}

.sys-select-wrap::after {
  content: "";
  position: absolute;
  right: 0.75rem;
  top: 50%;
  width: 0.45rem;
  height: 0.45rem;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: translateY(-65%) rotate(45deg);
  pointer-events: none;
}

.sys-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  padding: 0.55rem 2rem 0.55rem 0.75rem;
  font: inherit;
  font-size: 0.875rem;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.sys-select:hover {
  border-color: rgba(148, 163, 184, 0.4);
}

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

/* Toggle (чекбоксы Live / внизу) */
.sys-toggles {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  padding-top: 0.25rem;
}

.sys-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  user-select: none;
}

.sys-toggle-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.sys-toggle-track {
  position: relative;
  width: 2.5rem;
  height: 1.35rem;
  flex-shrink: 0;
  background: rgba(51, 65, 85, 0.8);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.sys-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1rem;
  height: 1rem;
  background: #cbd5e1;
  border-radius: 50%;
  transition: transform var(--transition), background var(--transition);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

.sys-toggle-input:checked + .sys-toggle-track {
  background: linear-gradient(135deg, #3b82f6, #6366f1);
  border-color: transparent;
  box-shadow: 0 0 12px var(--accent-glow);
}

.sys-toggle-input:checked + .sys-toggle-track .sys-toggle-thumb {
  transform: translateX(1.15rem);
  background: #fff;
}

.sys-toggle-input:focus-visible + .sys-toggle-track {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.sys-toggle-label {
  font-size: 0.875rem;
  color: var(--text);
  font-weight: 500;
}

/* Подсказки логов */
.system-logs-meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.65rem;
}

.system-logs-meta .muted {
  font-size: 0.78rem;
}

#logs-file-hint {
  font-family: ui-monospace, monospace;
  color: #94a3b8;
}

/* Список логов + скролл */
.system-page .log-list {
  max-height: min(52vh, 480px);
  overflow: auto;
  background: #060a12;
  border: 1px solid rgba(30, 41, 59, 0.9);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.5rem 0.65rem 0.75rem;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  scrollbar-width: thin;
  scrollbar-color: rgba(99, 102, 241, 0.55) rgba(15, 23, 42, 0.9);
}

.system-page .log-list::-webkit-scrollbar {
  width: 10px;
}

.system-page .log-list::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.8);
  border-radius: 5px;
  margin: 4px 0;
}

.system-page .log-list::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.5), rgba(59, 130, 246, 0.45));
  border-radius: 5px;
  border: 2px solid rgba(15, 23, 42, 0.8);
}

.system-page .log-list::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(129, 140, 248, 0.75), rgba(59, 130, 246, 0.65));
}

.system-page .log-row {
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  border-left: 2px solid transparent;
}

.system-page .log-error {
  border-left-color: #f87171;
}

.system-page .log-warn {
  border-left-color: #fbbf24;
}

.system-page .log-info {
  border-left-color: #60a5fa;
}

.system-logs-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

@media (max-width: 640px) {
  .system-logs-card .logs-toolbar {
    grid-template-columns: 1fr 1fr;
  }

  .sys-toggles {
    flex-direction: column;
    gap: 0.75rem;
  }
}