body.kanban-page {
  overflow: hidden;
  height: 100vh;
  background: var(--bg);
}
body.kanban-page > header {
  position: fixed;
  top: 0; right: 0;
  left: 64px;
  z-index: 30;
  background: var(--overlay-bg-faint);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 46px;
}
body.kanban-page > header > h1 { margin: 0; font-size: 0.95rem; font-weight: 500; color: var(--fg); }

.tabs { display: none; /* reemplazado por sidebar */ }
.tab {
  color: var(--muted); text-decoration: none;
  font-size: 0.82rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid transparent;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.tab:hover { background: var(--row-hover-bg); color: var(--fg); }
.tab.active { background: var(--accent-dim); color: var(--accent); border-color: var(--accent); font-weight: 600; }

.toolbar { display: flex; gap: 0.6rem; align-items: center; }
.toolbar .stat { font-size: 0.7rem; color: var(--muted); display: flex; flex-direction: column; align-items: flex-end; line-height: 1.1; }
.toolbar .stat b { font-size: 0.95rem; color: var(--fg); font-variant-numeric: tabular-nums; }
.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  font-size: 0.95rem;
  width: 30px; height: 30px;
  border-radius: 4px;
  cursor: pointer;
}
.theme-toggle-btn::before { content: "🌙"; }
[data-theme="light"] .theme-toggle-btn::before { content: "☀️"; }

.kanban-main {
  position: absolute;
  top: 46px; left: 64px; right: 0; bottom: 0;
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  padding: 0.5rem;
  overflow-x: auto;
  overflow-y: hidden;
  align-items: stretch;
}

.col {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  min-width: 260px;
  flex: 1 1 0;
  height: 100%;
  min-height: 0;
  transition: background 0.15s, border-color 0.15s;
}
.col > header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
  border-radius: 8px 8px 0 0;
}
.col-title { font-size: 0.82rem; font-weight: 600; letter-spacing: 0.3px; }
.col-count {
  background: var(--bg);
  color: var(--muted);
  font-size: 0.7rem;
  padding: 0.1rem 0.5rem;
  border-radius: 10px;
  font-variant-numeric: tabular-nums;
}
.col-body {
  padding: 0.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  flex: 1 1 auto;
  min-height: 0;
}
.col-body.drag-over {
  background: var(--accent-dim);
  outline: 2px dashed var(--accent);
  outline-offset: -4px;
}
.col-body::-webkit-scrollbar { width: 6px; }
.col-body::-webkit-scrollbar-track { background: transparent; }
.col-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--muted);
  border-radius: 5px;
  padding: 0.55rem 0.7rem;
  cursor: grab;
  user-select: none;
  font-size: 0.82rem;
  line-height: 1.4;
  transition: border-color 0.15s, transform 0.12s, box-shadow 0.12s;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}
.card.dragging { opacity: 0.5; cursor: grabbing; }
.card.cat-idea     { border-left-color: #F4B93A; }
.card.cat-order    { border-left-color: #FF6B6B; }
.card.cat-strategy { border-left-color: #A855F7; }
.card.cat-question { border-left-color: var(--accent); }

.card-body {
  color: var(--fg);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  word-break: break-word;
}
.card-meta {
  margin-top: 0.4rem;
  font-size: 0.65rem;
  color: var(--muted);
  display: flex;
  gap: 0.4rem;
  align-items: center;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.card-source {
  display: inline-flex;
  align-items: center;
  padding: 0.08rem 0.4rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.62rem;
}
.card-ts { margin-left: auto; font-family: "JetBrains Mono", monospace; }
.card-del {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s, background 0.15s;
}
.card:hover .card-del { opacity: 1; }
.card-del:hover { color: var(--error); background: rgba(255, 107, 107, 0.1); }
.card-empty {
  color: var(--muted);
  font-size: 0.75rem;
  text-align: center;
  padding: 1rem 0.5rem;
  font-style: italic;
  opacity: 0.7;
}

@media (max-width: 900px) {
  .col { min-width: 78vw; flex: 0 0 78vw; }
  .kanban-main { padding: 0.5rem; }
}
@media (max-width: 640px) {
  .kanban-main { top: 46px; left: 0; bottom: 54px; }
}