:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --text: #1f2a37;
  --muted: #52606d;
  --border: #d9e2ec;
  --accent: #0f766e;
  --danger: #b91c1c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container {
  width: min(720px, 92vw);
  margin: 2rem auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}

h1,
h2 {
  margin: 0 0 0.75rem;
}

h2 {
  margin-top: 1.25rem;
  font-size: 1.05rem;
}

.subtext {
  margin: 0 0 1rem;
  color: var(--muted);
}

.task-form {
  display: flex;
  gap: 0.5rem;
}

.task-form input {
  flex: 1;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.task-form button,
.task-actions button {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border);
  background: #f8fafc;
  border-radius: 8px;
  cursor: pointer;
}

.task-form button {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.task-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
}

.task-main {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}

.task-title {
  overflow-wrap: anywhere;
}

.completed .task-title {
  color: var(--muted);
  text-decoration: line-through;
}

.delete-btn {
  color: var(--danger);
}

.status {
  min-height: 1.2rem;
  color: var(--muted);
  margin-top: 1rem;
}