:root {
  --bg: #12151a;
  --panel: #191d24;
  --panel-2: #1f242c;
  --border: #262c36;
  --text: #e7e9ec;
  --text-dim: #8b94a0;
  --text-faint: #5b6270;
  --teal: #24c0a0;
  --amber: #f2a73b;
  --coral: #e2574c;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, sans-serif;
  --display: 'Space Grotesk', var(--sans);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  font-family: var(--mono);
  color: var(--teal);
  font-size: 18px;
}
.brand h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 17px;
  margin: 0;
  letter-spacing: -0.01em;
}

.status-row { display: flex; gap: 8px; flex: 1; }

.pill {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.pill-ok { color: var(--teal); border-color: rgba(36,192,160,0.35); background: rgba(36,192,160,0.08); }
.pill-bad { color: var(--coral); border-color: rgba(226,87,76,0.35); background: rgba(226,87,76,0.08); }
.pill-muted { color: var(--text-faint); }

.btn {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 13px;
  padding: 9px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { border-color: var(--text-faint); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn-primary { border-color: rgba(36,192,160,0.4); color: var(--teal); }
.btn-primary:hover { background: rgba(36,192,160,0.1); }
.btn-accent {
  background: var(--teal);
  border-color: var(--teal);
  color: #06231d;
  width: 100%;
  margin-top: 14px;
  padding: 10px 16px;
}
.btn-accent:hover { background: #2dd6b3; }

.layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1px;
  background: var(--border);
  min-height: calc(100vh - 65px);
}

.board, .simulate {
  background: var(--bg);
  padding: 20px 24px;
  overflow-y: auto;
}

.board-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.tabs { display: flex; gap: 4px; }
.tab {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  background: none;
  border: none;
  padding: 7px 12px;
  border-radius: 6px;
  cursor: pointer;
}
.tab:hover { color: var(--text); }
.tab.active { background: var(--panel-2); color: var(--text); }

.select {
  font-family: var(--sans);
  font-size: 13px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
}
.select-full { width: 100%; margin-bottom: 14px; }

.field-label {
  display: block;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-faint);
  margin: 14px 0 6px;
}

.textarea {
  width: 100%;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  resize: vertical;
}
.textarea::placeholder { color: var(--text-faint); }

.task-list { display: flex; flex-direction: column; gap: 8px; }

.task-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--text-faint);
  border-radius: 6px;
  padding: 12px 14px;
}
.task-card.urgent { border-left-color: var(--amber); }

.task-id {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
  min-width: 28px;
  padding-top: 2px;
}

.task-body { flex: 1; min-width: 0; }
.task-summary { font-size: 13.5px; margin: 0 0 4px; }
.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
}
.chip {
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--panel-2);
  border: 1px solid var(--border);
}
.chip.urgent { color: var(--amber); border-color: rgba(242,167,59,0.35); }

.task-actions { display: flex; gap: 6px; }
.icon-btn {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--text-dim);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 5px 9px;
  cursor: pointer;
}
.icon-btn:hover { color: var(--text); border-color: var(--text-faint); }

.empty { color: var(--text-faint); font-size: 13px; }

.simulate { border-left: 1px solid var(--border); }
.simulate-head h2 {
  font-family: var(--display);
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 6px;
}
.hint { color: var(--text-dim); font-size: 12.5px; margin: 0; }
.hint code {
  font-family: var(--mono);
  background: var(--panel-2);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 11.5px;
}

.feed {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.feed-item {
  font-family: var(--mono);
  font-size: 12px;
  padding: 9px 11px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel);
}
.feed-item .tag { color: var(--teal); }
.feed-item .tag.update { color: var(--amber); }
.feed-item .err { color: var(--coral); }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .simulate { border-left: none; border-top: 1px solid var(--border); }
  .topbar { flex-wrap: wrap; }
}