:root {
  --bg: #f1f2f4;
  --surface: #ffffff;
  --column: #e3e5e9;
  --text: #172b4d;
  --muted: #5e6c84;
  --border: #d0d4db;
  --primary: #0c66e4;
  --primary-hover: #0055cc;
  --danger: #c9372c;
  --shadow: 0 1px 2px rgba(9, 30, 66, .2);
  --c-red: #e2483d;
  --c-orange: #f38a1f;
  --c-yellow: #e2b203;
  --c-green: #22a06b;
  --c-blue: #1d7afc;
  --c-purple: #8f7ee7;
}

* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); }
h1 { font-size: 18px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 12px; }

.btn { border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 4px; padding: 6px 12px; font: inherit; cursor: pointer; }
.btn:hover { background: #f4f5f7; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.danger { color: var(--danger); border-color: var(--danger); }
.btn.link { border: 0; background: none; color: var(--muted); padding: 4px; }
.btn.link:hover { text-decoration: underline; }

/* ---------- Вход ---------- */
.login { max-width: 320px; margin: 15vh auto; padding: 24px; background: var(--surface); border-radius: 8px; box-shadow: var(--shadow); display: grid; gap: 12px; }
.login label { display: grid; gap: 4px; color: var(--muted); }
.login-error { color: var(--danger); }
input, textarea, select { font: inherit; color: inherit; padding: 6px 8px; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); width: 100%; }
textarea { resize: vertical; }

/* ---------- Шапка ---------- */
.top { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--surface); box-shadow: var(--shadow); flex-wrap: wrap; }
.top select { width: auto; }
.top form { margin: 0; }
.status { flex: 1; color: var(--muted); font-size: 13px; }
.status.error { color: var(--danger); }
.who { color: var(--muted); }

/* ---------- Доска ---------- */
.board { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; padding: 16px; align-items: start; max-width: 1400px; margin: 0 auto; }
.column { background: var(--column); border-radius: 8px; padding: 8px; min-height: 200px; transition: background .1s; }
.column.over { background: #d5d9e0; }
.column-head { display: flex; align-items: center; gap: 8px; padding: 4px 4px 8px; }
.column-title { font-weight: 600; }
.count { color: var(--muted); font-size: 12px; }
.btn.add { margin-left: auto; padding: 0 10px; font-size: 18px; line-height: 26px; }
.tasks { min-height: 60px; display: grid; gap: 8px; }

.task { background: var(--surface); border-radius: 6px; padding: 8px 10px; box-shadow: var(--shadow); cursor: pointer; border-left: 4px solid transparent; overflow-wrap: anywhere; }
.task:hover { box-shadow: 0 2px 6px rgba(9, 30, 66, .25); }
.task.dragging { opacity: .4; }
.task.c-red { border-left-color: var(--c-red); }
.task.c-orange { border-left-color: var(--c-orange); }
.task.c-yellow { border-left-color: var(--c-yellow); }
.task.c-green { border-left-color: var(--c-green); }
.task.c-blue { border-left-color: var(--c-blue); }
.task.c-purple { border-left-color: var(--c-purple); }
.task-info { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; font-size: 12px; color: var(--muted); align-items: center; }
.tag { background: #e9f2ff; color: #0055cc; border-radius: 3px; padding: 1px 6px; }
.due { padding: 1px 6px; border-radius: 3px; background: #f1f2f4; }
.due.today { background: #fff7d6; color: #7f5f01; }
.due.overdue { background: #ffeceb; color: var(--danger); font-weight: 600; }

/* ---------- Редактор ---------- */
dialog { border: 0; border-radius: 8px; padding: 20px; width: min(560px, calc(100vw - 32px)); box-shadow: 0 8px 32px rgba(9, 30, 66, .3); color: var(--text); }
dialog::backdrop { background: rgba(9, 30, 66, .45); }
#editor-form { display: grid; gap: 12px; }
#editor-form > label, .row > label { display: grid; gap: 4px; color: var(--muted); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.colors { border: 0; padding: 0; margin: 0; display: flex; gap: 6px; flex-wrap: wrap; align-items: end; }
.colors legend { color: var(--muted); padding: 0; margin-bottom: 4px; }
.swatch { position: relative; width: 28px; height: 28px; border-radius: 4px; cursor: pointer; border: 2px solid transparent; display: inline-block; }
/* Радио скрыта внутри квадратика; общий width:100% для input здесь растягивал её за край окна */
.swatch input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; padding: 0; opacity: 0; pointer-events: none; }
.swatch:has(input:checked) { border-color: var(--text); }
.swatch:has(input:focus-visible) { outline: 2px solid var(--primary); outline-offset: 1px; }
.c-none { background: repeating-linear-gradient(45deg, #fff 0 4px, #dfe1e6 4px 8px); }
.swatch.c-red { background: var(--c-red); }
.swatch.c-orange { background: var(--c-orange); }
.swatch.c-yellow { background: var(--c-yellow); }
.swatch.c-green { background: var(--c-green); }
.swatch.c-blue { background: var(--c-blue); }
.swatch.c-purple { background: var(--c-purple); }
.meta { color: var(--muted); font-size: 12px; }
.meta:empty, .editor-error:empty { display: none; }
.editor-error { color: var(--danger); }
.actions { display: flex; gap: 8px; }
.spacer { flex: 1; }

@media (max-width: 760px) {
  .board { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; }
}