/* ============================================================
   SimulateIT — Sandbox-terminal (xterm.js in browser)
   Voor Docker-backed CLI labs: linux, network, python
   ============================================================ */

.sandbox {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.sandbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.sandbox-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.sandbox-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.sandbox-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  background: var(--bg-panel-2);
  color: var(--text-muted);
}

.sandbox-status::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
}

.sandbox-status.stopped::before { background: var(--text-dim); }
.sandbox-status.starting {
  color: var(--amber);
  border-color: rgba(251, 191, 36, 0.4);
  background: var(--amber-dim);
}
.sandbox-status.starting::before {
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber);
  animation: pulse 1.2s ease-in-out infinite;
}
.sandbox-status.running {
  color: var(--green);
  border-color: rgba(74, 222, 128, 0.4);
  background: var(--green-dim);
}
.sandbox-status.running::before {
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.sandbox-status.expired,
.sandbox-status.error {
  color: var(--red);
  border-color: rgba(251, 113, 133, 0.4);
  background: var(--red-dim);
}
.sandbox-status.expired::before,
.sandbox-status.error::before { background: var(--red); }

.sandbox-countdown {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
}
.sandbox-countdown.warn { color: var(--amber); border-color: rgba(251, 191, 36, 0.4); }
.sandbox-countdown.danger { color: var(--red); border-color: rgba(251, 113, 133, 0.4); }

.sandbox-term-wrap {
  background: #000;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px;
  min-height: 340px;
  position: relative;
}

.sandbox-term {
  width: 100%;
  height: 100%;
  min-height: 324px;
}

.sandbox-term .xterm,
.sandbox-term .xterm-viewport,
.sandbox-term .xterm-screen { width: 100% !important; }

.sandbox-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 324px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  padding: 24px;
}

.sandbox-placeholder strong {
  color: var(--text-muted);
  font-size: 14px;
  text-transform: none;
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}

.sandbox-error {
  padding: 10px 14px;
  background: rgba(251, 113, 133, 0.08);
  border: 1px solid rgba(251, 113, 133, 0.35);
  border-left: 3px solid var(--red);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--red);
  line-height: 1.5;
  display: none;
}
.sandbox-error.show { display: block; }

.sandbox-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.sandbox-footer span { display: inline-flex; gap: 6px; align-items: center; }
.sandbox-footer code {
  font-family: var(--font-mono);
  color: var(--cyan);
  background: var(--bg-panel-2);
  padding: 1px 6px;
  border-radius: 3px;
  border: 1px solid var(--border);
  text-transform: none;
}

/* Opdrachten panel — checklist met shell-commands */
.cmd-checklist { display: flex; flex-direction: column; gap: 10px; }
.cmd-task {
  display: flex;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-panel-2);
}
.cmd-task input[type="checkbox"] { margin-top: 3px; flex-shrink: 0; cursor: pointer; }
.cmd-task .cmd-task-body { flex: 1; min-width: 0; }
.cmd-task .cmd-task-title {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text);
  line-height: 1.5;
  margin: 0 0 6px;
}
.cmd-task code {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bg-input);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--cyan);
  border: 1px solid var(--border);
}
.cmd-task .cmd-task-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-top: 4px;
}
.cmd-task.done .cmd-task-title { color: var(--text-muted); text-decoration: line-through; }
.cmd-task.done {
  opacity: 0.55;
  padding: 6px 12px;
  background: transparent;
}
.cmd-task.done .cmd-task-hint { display: none; }
.cmd-task.done .cmd-task-title { font-size: 12px; margin-bottom: 0; }

/* ============================================================
   Split-layout: terminal links, opdrachten rechts (desktop)
   Stacked op smaller screens.
   ============================================================ */
.lab-split {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  margin-bottom: 16px;
}
.lab-split > .panel { margin: 0; min-width: 0; }
.lab-split .cmd-checklist {
  max-height: 540px;
  overflow-y: auto;
  padding-right: 4px;
}
.lab-split .cmd-checklist::-webkit-scrollbar { width: 6px; }
.lab-split .cmd-checklist::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

@media (max-width: 1100px) {
  .lab-split { grid-template-columns: 1fr; }
  .lab-split .cmd-checklist { max-height: none; }
}