:root {
  --bg: #f3f4f7;
  --surface: #ffffff;
  --column: #e9ebf0;
  --text: #1b1e25;
  --muted: #667085;
  --border: #d8dbe3;
  --accent: #2f6fed;
  --accent-text: #ffffff;
  --danger: #d43c3c;
  --shadow: 0 1px 2px rgb(20 24 40 / 8%), 0 2px 8px rgb(20 24 40 / 6%);
  --todo: #8a93a6;
  --doing: #2f6fed;
  --review: #d98a00;
  --done: #2e9e5b;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161b;
    --surface: #23262e;
    --column: #1b1e25;
    --text: #e8eaf0;
    --muted: #98a0b3;
    --border: #343946;
    --accent: #5b8cff;
    --accent-text: #0d1220;
    --danger: #ff6b6b;
    --shadow: 0 1px 2px rgb(0 0 0 / 40%);
  }
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

[hidden] { display: none !important; }

h1, h2, p { margin: 0; }
h1 { font-size: 18px; letter-spacing: -0.01em; }
h2 { font-size: 17px; }

.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.error { color: var(--danger); min-height: 1.4em; }

input, textarea, select, button { font: inherit; color: inherit; }

input, textarea, select {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font-size: 16px; /* iOS inak pri fokuse zoomuje */
}

textarea { resize: vertical; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.btn {
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  white-space: nowrap;
}
.btn.primary { background: var(--accent); color: var(--accent-text); font-weight: 600; }
.btn.ghost { border-color: var(--border); }
.btn.danger { color: var(--danger); border-color: var(--border); }
.btn:hover { filter: brightness(1.06); }

/* Prihlásenie */
#login {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 16px;
}
.login-card {
  width: min(340px, 100%);
  display: grid;
  gap: 12px;
  padding: 24px;
  background: var(--surface);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

/* Tabuľa */
#app {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 16px;
  padding-top: max(10px, env(safe-area-inset-top));
}
.topbar-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.toggle { display: flex; align-items: center; gap: 6px; cursor: pointer; user-select: none; margin-right: 4px; }
.toggle input { width: auto; }

.board {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(250px, 1fr));
  gap: 12px;
  padding: 4px 16px max(16px, env(safe-area-inset-bottom));
  overflow-x: auto;
  scroll-snap-type: x proximity;
}

.column {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--column);
  border-radius: 12px;
  border-top: 3px solid var(--c);
  scroll-snap-align: center;
}
.column[data-status="todo"] { --c: var(--todo); }
.column[data-status="doing"] { --c: var(--doing); }
.column[data-status="review"] { --c: var(--review); }
.column[data-status="done"] { --c: var(--done); }

.column-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px 6px;
  font-weight: 650;
}
.count {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  background: var(--surface);
  border-radius: 99px;
  padding: 1px 8px;
}

.add { padding: 0 8px 8px; }
.add input { padding: 7px 10px; background: transparent; border-style: dashed; }
.add input:focus { background: var(--surface); border-style: solid; }

.list {
  flex: 1;
  min-height: 60px;
  overflow-y: auto;
  padding: 0 8px 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card {
  background: var(--surface);
  border-radius: 10px;
  border-left: 3px solid var(--c);
  padding: 10px 12px;
  box-shadow: var(--shadow);
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}
.card-title { font-weight: 550; overflow-wrap: anywhere; }
.card-desc {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow-wrap: anywhere;
}
.card-foot { margin-top: 8px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.card-id { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.column[data-status="done"] .card-title { text-decoration: line-through; color: var(--muted); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 600;
  max-width: 100%;
}
.chip i {
  flex: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-style: normal;
  font-size: 11px;
}
.chip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.take {
  padding: 3px 10px;
  font-size: 12.5px;
  border: 1px dashed var(--border);
  border-radius: 99px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.take:hover { color: var(--accent); border-color: var(--accent); }

.ghost-card { opacity: 0.35; }
.drag-card { transform: rotate(2deg); }

/* Dialógy */
dialog {
  width: min(480px, calc(100% - 24px));
  padding: 0;
  border: 0;
  border-radius: 14px;
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 12px 40px rgb(0 0 0 / 30%);
}
dialog::backdrop { background: rgb(10 12 18 / 55%); }
.dlg { display: grid; gap: 12px; padding: 20px; }
.dlg label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
.dlg label > * { color: var(--text); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.dlg-actions { display: flex; gap: 8px; align-items: center; margin-top: 4px; }
.spacer { flex: 1; }

.toast {
  position: fixed;
  left: 50%;
  bottom: max(20px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  max-width: calc(100% - 32px);
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--text);
  color: var(--bg);
  box-shadow: var(--shadow);
  z-index: 10;
}

@media (max-width: 700px) {
  .board { grid-template-columns: repeat(4, 84vw); scroll-snap-type: x mandatory; }
  .topbar h1 { font-size: 16px; }
}

/* Honeypot – mimo obrazovky, človek ho nevidí */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.me { font-weight: 600; }