/* LeC2 light theme — palette mirrors body.light-mode in the main app. */
:root {
  --bg-primary:   #f5f5f5;
  --bg-secondary: #ffffff;
  --bg-tertiary:  #e8e8e8;
  --bg-hover:     #f0f0f0;
  --text-primary:   #2a2a2a;
  --text-secondary: #666;
  --text-tertiary:  #888;
  --border-primary:   #d0d0d0;
  --border-secondary: #c0c0c0;
  --accent:         #00aa55;
  --accent-hover:   #009248;
  --accent-soft:    #e6f7ef;
  --accent-border:  #c5e8d4;
  --danger:         #d93025;
  --danger-hover:   #b9251c;
  --danger-soft:    #fde8e6;
  --danger-border:  #f4b8b3;
  --warning:        #f4a100;
  --warning-soft:   #fff4d6;
  --warning-border: #f0d27a;
  --info:           #2196f3;
  --info-soft:      #e3f2fd;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow:    0 2px 8px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  min-height: 100vh;
}

/* ---- Top bar ---------------------------------------------------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.counts { font-size: 13px; color: var(--text-secondary); margin-right: 8px; }
.counts strong { color: var(--text-primary); font-weight: 600; }
.counts .dim { color: var(--text-tertiary); }

/* ---- Buttons ---------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border-secondary);
  border-radius: 5px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 120ms, border-color 120ms, color 120ms;
  white-space: nowrap;
}
.btn:hover:not(:disabled) { background: var(--bg-hover); border-color: #999; }
.btn:disabled { cursor: not-allowed; opacity: 0.85; }
.btn-icon { font-size: 10px; line-height: 1; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
}

.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #ffffff;
}
.btn-danger:hover:not(:disabled) {
  background: var(--danger-hover);
  border-color: var(--danger-hover);
  color: #fff;
}

.btn-warn {
  background: var(--warning);
  border-color: var(--warning);
  color: #fff;
}
.btn-warn:disabled { opacity: 1; }

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
  padding: 7px 10px;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--border-primary);
  color: var(--text-primary);
}
.btn-ghost .caret { font-size: 10px; opacity: 0.7; }

/* The single per-sim action button has a fixed minimum width so it
   doesn't visually jump as the label changes (Start ⇄ Stop ⇄ Stopping…). */
.action-btn { min-width: 110px; justify-content: center; }

/* ---- Main layout ------------------------------------------------------ */

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 24px 48px;
}

.banner {
  margin: 0 0 16px;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  background: var(--danger-soft);
  border: 1px solid var(--danger-border);
  color: #7a1c14;
}
.banner.warn { background: var(--warning-soft); border-color: var(--warning-border); color: #7a5a00; }
.banner.info { background: var(--info-soft); border-color: #b9dafc; color: #0d3a73; }

.sim-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(440px, 1fr));
  /* align-items: stretch is the default — same-row cards equal height. */
  gap: 14px;
}

/* ---- Sim card --------------------------------------------------------- */

.sim-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  padding: 16px 18px 0;          /* zero bottom — action footer hugs the edge */
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 360px;             /* keeps short-arg cards from looking stubby */
  transition: box-shadow 120ms, border-color 120ms;
  overflow: hidden;
}
.sim-card[data-status="running"] {
  border-color: var(--accent-border);
  box-shadow: 0 0 0 2px var(--accent-soft), var(--shadow);
}
.sim-card[data-status="stopping"],
.sim-card[data-status="starting"] {
  border-color: var(--warning-border);
  box-shadow: 0 0 0 2px var(--warning-soft), var(--shadow);
}
.sim-card[data-status="exited"] {
  /* Clean stop — neutral, lightly dimmed background. */
  border-color: var(--border-primary);
  background: #fafafa;
}
.sim-card[data-status="crashed"] {
  border-color: var(--danger-border);
  background: #fffafa;
}

/* Title row -------------------------------------------------------------- */

.card-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.card-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.card-title-spacer { flex: 1; }
.card-status-pill {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
  border: 1px solid var(--border-primary);
  flex-shrink: 0;
  white-space: nowrap;
}
.sim-card[data-status="running"] .card-status-pill {
  background: var(--accent-soft);
  color: var(--accent-hover);
  border-color: var(--accent-border);
}
.sim-card[data-status="starting"] .card-status-pill,
.sim-card[data-status="stopping"] .card-status-pill {
  background: var(--warning-soft);
  color: #7a5a00;
  border-color: var(--warning-border);
}
.sim-card[data-status="exited"] .card-status-pill {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-color: var(--border-primary);
}
.sim-card[data-status="crashed"] .card-status-pill {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: var(--danger-border);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-tertiary);
  display: inline-block;
  flex-shrink: 0;
}
.sim-card[data-status="running"] .status-dot {
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  animation: pulse 1.6s ease-in-out infinite;
}
.sim-card[data-status="starting"] .status-dot,
.sim-card[data-status="stopping"] .status-dot {
  background: var(--warning);
  animation: pulse-warn 1s ease-in-out infinite;
}
.sim-card[data-status="exited"]  .status-dot { background: var(--text-tertiary); }
.sim-card[data-status="crashed"]  .status-dot { background: var(--danger); }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(0,170,85,0.18); }
  50%      { box-shadow: 0 0 0 6px rgba(0,170,85,0.05); }
}
@keyframes pulse-warn {
  0%, 100% { box-shadow: 0 0 0 3px rgba(244,161,0,0.25); }
  50%      { box-shadow: 0 0 0 6px rgba(244,161,0,0.08); }
}

.badge {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 7px;
  border-radius: 3px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  font-weight: 600;
  flex-shrink: 0;
}

.card-desc {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-secondary);
}

/* Args form ------------------------------------------------------------- */

.args {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 14px;
}
.args .field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.args .field.full { grid-column: span 2; }
.args .field.bool-field {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}
.args label {
  font-size: 11.5px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.args label .flag {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-tertiary);
}
.args input[type="text"],
.args input[type="number"],
.args select {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-secondary);
  border-radius: 4px;
  padding: 6px 9px;
  font: inherit;
  font-size: 13px;
  width: 100%;
  min-width: 0;
  transition: border-color 120ms, box-shadow 120ms;
}
.args input:focus, .args select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}
.args input.conflict {
  border-color: var(--danger);
  background: var(--danger-soft);
}
.args input:disabled, .args select:disabled {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
  cursor: not-allowed;
}
.args .bool-field input { width: auto; }
.args .bool-field label { padding: 0; }

/* Runtime info ---------------------------------------------------------- */

.card-runtime {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 10px;
  background: var(--bg-tertiary);
  border-radius: 5px;
  font-size: 12.5px;
}
.runtime-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.meta-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  min-width: 56px;
}
.runtime-text { color: var(--text-secondary); font-family: var(--mono); font-size: 11.5px; }

.ports {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
}
.port-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--bg-secondary);
  border: 1px solid var(--accent-border);
  color: var(--accent-hover);
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  user-select: all;
  transition: background 120ms;
}
.port-chip:hover { background: var(--accent-soft); }
.port-chip.conflict {
  background: var(--bg-secondary);
  border-color: var(--danger-border);
  color: var(--danger);
}
.port-chip.conflict:hover { background: var(--danger-soft); }

.conflict-warning {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 5px;
  background: var(--danger-soft);
  border: 1px solid var(--danger-border);
  color: #7a1c14;
}

/* Action footer — pinned to the card bottom so all cards in a row share
   the same vertical position. The negative side margins let the row
   stretch edge-to-edge with a top border. */
.card-actions {
  margin: auto -18px 0;
  padding: 10px 16px;
  border-top: 1px solid var(--border-primary);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.actions-spacer { flex: 1; }
.sim-card[data-status="running"] .card-actions { background: var(--accent-soft); }
.sim-card[data-status="crashed"] .card-actions { background: #fff5f4; }

/* Logs ------------------------------------------------------------------ */

.logs-wrap {
  margin: 0 -18px;
  border-top: 1px solid #2a2a2a;
}
.logs {
  margin: 0;
  padding: 10px 18px;
  background: #1e1e1e;
  color: #d2d6df;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.55;
  max-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.logs:empty::before {
  content: 'Waiting for output…';
  color: #6c7588;
  font-style: italic;
}
.logs .stderr { color: #ff9c8f; }
.logs .system { color: #7fbcdf; font-style: italic; }
.logs .stdout { color: #d2d6df; }

/* Responsive ------------------------------------------------------------ */

@media (max-width: 720px) {
  .topbar { flex-direction: column; align-items: stretch; gap: 10px; }
  .topbar-actions { justify-content: flex-end; }
  .sim-list { grid-template-columns: 1fr; }
  .args { grid-template-columns: 1fr; }
  .args .field.full { grid-column: span 1; }
}