:root {
  --bg: #0e1116;
  --surface: #161b22;
  --surface-2: #1f2630;
  --border: #2a313c;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #4f8cff;
  --accent-hover: #6aa0ff;
  --danger: #f85149;
  --bug: #ff6b6b;
  --feature: #66bb6a;
  --prio-high: #ff7043;
  --prio-low: #78909c;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topbar .brand {
  font-weight: 700;
  color: var(--text);
  font-size: 16px;
}

.topbar nav a {
  margin-left: 16px;
  color: var(--muted);
}
.topbar nav a:hover { color: var(--text); }

.container {
  margin: 0 auto;
  padding: 24px;
}
.container.narrow { max-width: 720px; }
.container.wide { max-width: 1400px; }

h1 { font-size: 24px; margin: 0 0 12px; }
h2 { font-size: 18px; margin: 0 0 12px; }

.muted { color: var(--muted); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.stack > * + * { margin-top: 16px; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; color: var(--muted); font-weight: 500; }

input[type="text"], input[type="password"], textarea, select {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--text);
  font: inherit;
  width: 100%;
}
textarea { resize: vertical; font-family: inherit; }
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

.radio-row { display: flex; gap: 16px; }
.radio { display: flex; align-items: center; gap: 6px; cursor: pointer; }

.btn {
  display: inline-block;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 16px;
  color: var(--text);
  font: inherit;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--border); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn.danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
}
.btn.danger:hover { background: var(--danger); color: #fff; }
.btn.link {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 0;
  font-size: 12px;
}
.btn.link:hover { color: var(--danger); }

.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: 1fr 1fr; }
.grid.three { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 600px) {
  .grid.two, .grid.three { grid-template-columns: 1fr; }
}

.row { display: flex; gap: 12px; align-items: center; }
.row.spread { justify-content: space-between; }

.alert {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
}
.alert.success { background: rgba(102, 187, 106, 0.15); border: 1px solid var(--feature); color: var(--feature); }
.alert.error { background: rgba(248, 81, 73, 0.15); border: 1px solid var(--danger); color: var(--danger); }

.footnote {
  text-align: center;
  padding: 24px;
  font-size: 12px;
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.tag.bug { background: rgba(255, 107, 107, 0.15); color: var(--bug); }
.tag.feature { background: rgba(102, 187, 106, 0.15); color: var(--feature); }
.tag.prio-high { background: rgba(255, 112, 67, 0.15); color: var(--prio-high); }
.tag.prio-low { background: rgba(120, 144, 156, 0.15); color: var(--prio-low); }
.tag.project-desktop { background: rgba(79, 140, 255, 0.15); color: var(--accent); }
.tag.project-ios_external { background: rgba(255, 167, 38, 0.18); color: #ffa726; }
.tag.project-ios_internal { background: rgba(171, 71, 188, 0.18); color: #ce93d8; }
.tag.project-android { background: rgba(165, 214, 167, 0.18); color: #a5d6a7; }
.tag.project-carplay { background: rgba(38, 198, 218, 0.18); color: #4dd0e1; }
.tag.project-android_auto { background: rgba(255, 213, 79, 0.18); color: #ffd54f; }
.tag.muted-tag { background: var(--surface-2); color: var(--muted); }

.radio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 16px;
}
@media (max-width: 600px) {
  .radio-grid { grid-template-columns: 1fr; }
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.filter-label {
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-right: 4px;
}
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* Board */
.board-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.board-toolbar h1 { margin-bottom: 4px; }
.board-toolbar p { margin: 0; }
.filters { display: flex; gap: 16px; }
.checkbox {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.board {
  display: grid;
  grid-template-columns: repeat(4, minmax(240px, 1fr));
  gap: 16px;
  align-items: start;
}
@media (max-width: 1100px) {
  .board { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .board { grid-template-columns: 1fr; }
}

.column {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  min-height: 200px;
}
.column header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 4px 12px;
}
.column h2 { margin: 0; font-size: 14px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--muted); }
.count {
  background: var(--surface-2);
  color: var(--muted);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 12px;
}

.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 60px;
}

.card-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: 6px;
  padding: 10px 12px;
  cursor: grab;
  transition: transform 0.06s ease, box-shadow 0.06s ease;
}
.card-item:active { cursor: grabbing; }
.card-item:hover { box-shadow: var(--shadow); transform: translateY(-1px); }

.board.readonly .card-item { cursor: default; }
.board.readonly .card-item:hover { transform: none; }

.card-item.is-private {
  background: linear-gradient(180deg, rgba(255, 213, 79, 0.06), var(--surface-2));
  border-color: rgba(255, 213, 79, 0.35);
}
.card-item .lock {
  font-size: 11px;
  margin-right: 2px;
  filter: grayscale(0.2);
}
.card-empty {
  list-style: none;
  padding: 12px;
  text-align: center;
  font-size: 12px;
  font-style: italic;
}
.card-item.type-bug { border-left-color: var(--bug); }
.card-item.type-feature { border-left-color: var(--feature); }
.card-item.priority-high { box-shadow: inset 3px 0 0 var(--prio-high); }
.card-item .title {
  display: block;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 6px;
}
.card-item .title:hover { color: var(--accent); }
.card-item .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 11px;
}
.card-item.hidden { display: none; }

.card-ghost { opacity: 0.4; }
.card-drag { transform: rotate(1.5deg); }

/* Comments */
.comments {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.comments li {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
}
.comment-body { white-space: pre-wrap; }
.comment-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 12px;
}
.inline { display: inline; }