:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --panel: #ffffff;
  --text: #18212f;
  --muted: #667085;
  --line: #d7dde8;
  --accent: #0f766e;
  --warning: #b7791f;
  --danger: #b42318;
  --success: #16803c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 20px 28px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

h1, h2, p {
  margin: 0;
}

h1 {
  font-size: 24px;
}

h2 {
  font-size: 17px;
  margin-bottom: 14px;
}

.topbar p {
  margin-top: 6px;
  color: var(--muted);
}

nav,
.toolbar,
.monthly {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

button,
a,
select,
input {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 12px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

button,
a {
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

button.active,
button:hover,
a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

main {
  padding: 24px 28px 48px;
}

.summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.summary-card,
.panel,
.task-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.summary-card {
  padding: 14px;
}

.summary-card span {
  color: var(--muted);
  font-size: 13px;
}

.summary-card strong {
  display: block;
  margin-top: 6px;
  font-size: 24px;
}

.task-list {
  display: grid;
  gap: 12px;
}

.task-card {
  padding: 16px;
}

.task-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.task-title {
  font-weight: 700;
}

.task-meta,
.task-grid span,
.task-actions {
  color: var(--muted);
  font-size: 13px;
}

.task-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.task-grid strong {
  display: block;
  margin-top: 4px;
}

.badge {
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 12px;
  background: #eef2f7;
}

.badge.overdue {
  color: var(--danger);
  background: #fff1f0;
}

.badge.warning {
  color: var(--warning);
  background: #fff8e6;
}

.badge.completed,
.badge.exempted {
  color: var(--success);
  background: #ecfdf3;
}

.task-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.panel {
  margin-top: 20px;
  padding: 16px;
}

pre {
  overflow: auto;
  margin: 14px 0 0;
  padding: 12px;
  background: #101828;
  color: #e8eef7;
  border-radius: 6px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: #101828;
  color: #fff;
  padding: 10px 14px;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}

.toast.show {
  opacity: 1;
}

@media (max-width: 720px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    padding: 16px;
  }
}