:root {
  --ink: #1d2733;
  --muted: #667085;
  --line: #d9e0e8;
  --panel: #ffffff;
  --bg: #f6f8fb;
  --brand: #0f766e;
  --brand-dark: #115e59;
  --warn: #b45309;
  --done: #15803d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 32px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

h1, h2, p { margin: 0; }
h1 { font-size: 24px; }
h2 { font-size: 18px; margin-bottom: 16px; }
#subtitle { color: var(--muted); margin-top: 4px; }

nav { display: flex; gap: 8px; flex-wrap: wrap; }

button {
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button:hover { background: var(--brand-dark); }
button.secondary, button.tab { background: #e8eef4; color: var(--ink); }
button.secondary:hover, button.tab:hover, button.tab.active { background: #cbd8e4; }
button.danger { background: #b42318; }
button.danger:hover { background: #912018; }
button:disabled { cursor: not-allowed; opacity: 0.45; }

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px;
}

.view { display: none; }
.view.active { display: block; }

.band, .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 18px;
}

.settings-grid, .workspace, .child-band, .report-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.workspace { grid-template-columns: 1fr 360px; }

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  color: var(--ink);
  background: #fff;
  font-size: 15px;
}

.children-settings {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 14px;
}

.status-line {
  color: var(--muted);
  font-size: 14px;
  margin-top: 12px;
  overflow-wrap: anywhere;
}

.task-list, .child-tasks, .log { display: grid; gap: 10px; }

.task-row, .child-row, .report-card, .log-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.task-row {
  display: grid;
  grid-template-columns: 90px 1fr 96px 84px;
  align-items: center;
  gap: 12px;
}

.pill {
  display: inline-flex;
  width: fit-content;
  padding: 4px 8px;
  border-radius: 999px;
  background: #edf6f4;
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 700;
}

.muted { color: var(--muted); font-size: 13px; }
form { display: grid; gap: 12px; }
.checkrow { display: flex; align-items: center; gap: 10px; }
.checkrow input { width: 18px; height: 18px; }

.child-row {
  display: grid;
  grid-template-columns: 26px 1fr auto;
  align-items: center;
  gap: 12px;
}

.child-row.done {
  border-color: #b8dec6;
  background: #f2fbf5;
}

.child-row input { width: 22px; height: 22px; }
.due { font-weight: 700; }
.overdue { color: var(--warn); }
.complete { color: var(--done); }
.report-card h3 { margin: 0 0 10px; }
.report-list { display: grid; gap: 8px; }
.log-row { display: grid; gap: 5px; }
.log-row pre { margin: 0; white-space: pre-wrap; font-family: inherit; }

@media (max-width: 820px) {
  .topbar { align-items: flex-start; flex-direction: column; padding: 18px; }
  main { padding: 14px; }
  .settings-grid, .workspace, .children-settings, .child-band, .report-grid { grid-template-columns: 1fr; }
  .task-row { grid-template-columns: 1fr; }
}