:root {
  --bg: #16181d;
  --card: #1f232b;
  --card-border: #2b303a;
  --text: #e7e9ee;
  --text-dim: #9aa1ad;
  --accent: #4f8cff;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --radius: 14px;
}

* { box-sizing: border-box; }

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

body {
  padding: 14px 16px 28px;
}

h1, h2, h3 { margin: 0 0 8px; font-weight: 600; }
h1 { font-size: 1.3rem; }
h2 { font-size: 1rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .04em; margin-top: 22px; }

a { color: var(--accent); }

.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  margin: 10px 0 16px;
  padding-bottom: 2px;
}
.tab {
  flex: 0 0 auto;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text-dim);
  font-size: .85rem;
  cursor: pointer;
  white-space: nowrap;
}
.tab.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.section { margin-bottom: 4px; }

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

.task-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.task-check {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--text-dim);
  background: transparent;
  color: transparent;
  font-size: 1rem;
  cursor: pointer;
}
.task-check:active { transform: scale(0.92); }
.task-check.done { border-color: var(--green); background: var(--green); color: white; }

.task-body { flex: 1; min-width: 0; }
.task-title { font-size: .95rem; font-weight: 500; }
.task-meta { font-size: .78rem; color: var(--text-dim); margin-top: 2px; display: flex; gap: 8px; flex-wrap: wrap; }

.badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: .72rem;
  color: white;
}

.overdue { color: var(--red); font-weight: 600; }
.due-today { color: var(--amber); font-weight: 600; }

.empty-state {
  color: var(--text-dim);
  font-size: .85rem;
  padding: 18px 4px;
  text-align: center;
}

form.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 18px;
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

label { font-size: .85rem; color: var(--text-dim); display: block; margin-bottom: 5px; }

input[type=text], input[type=date], select, textarea {
  width: 100%;
  background: #12141a;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  color: var(--text);
  padding: 9px 10px;
  font-size: .95rem;
}
textarea { resize: vertical; min-height: 60px; }

.radio-row { display: flex; flex-wrap: wrap; gap: 8px; }
.radio-row label {
  display: flex; align-items: center; gap: 6px;
  background: #12141a; border: 1px solid var(--card-border);
  padding: 7px 10px; border-radius: 999px; font-size: .82rem; color: var(--text);
  margin-bottom: 0; cursor: pointer;
}
.radio-row input { accent-color: var(--accent); }

button.submit {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 11px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
}
button.submit:active { opacity: .85; }

.toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--green);
  color: white;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: .85rem;
  opacity: 0;
  transition: opacity .25s;
  pointer-events: none;
}
.toast.show { opacity: 1; }