body {
  font-family: "Segoe UI", sans-serif;
  margin: 0;
  background: #f4f6f8;
  color: #333;
}
header {
  background: #2b8cff;
  color: white;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}
h1 {
  margin: 0;
  font-size: 1.5rem;
}
button.add {
  background: #ffb100;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
}
main {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem;
}

.agenda,
.archived {
  background: #fff8e1;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.archived {
  background: #e8eaf6;
}
.agenda h2,
.archived h2 {
  margin-top: 0;
}
.columns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.column {
  flex: 1;
  min-width: 250px;
  background: #fff;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}
.col-title {
  font-weight: bold;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
}
.task {
  background: #e9eef5;
  margin-bottom: 0.5rem;
  padding: 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.task.overdue {
  background: #ffe5e5;
}
.task .title {
  flex: 1;
  margin-right: 0.5rem;
}
.task .actions button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  margin-left: 0.3rem;
}