/* Interactive kanban demo inside the board lead card on the homepage.
   All rules are scoped to .kb-*; colors and fonts come from the design
   tokens in site.css / home.css. Behavior lives in kanban-demo.js. */

/* The wide card hosts a live demo — a hover lift would create a fixed-position
   containing block (transform) that clips dragged cards, so disable it here. */
.lead-card--wide:hover { transform: none; }

.kb {
  position: relative;
  padding: 22px 22px 0;
}

/* Visually hidden (screen-reader only) helper, local to the demo */
.kb-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

/* ── Toolbar ── */
.kb-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.kb-title {
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--text-amber);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kb-stats {
  padding: 5px 9px;
  border: 1px solid var(--win-border);
  border-radius: 999px;
  font: 500 10px/1 var(--font-mono);
  color: var(--text-faint);
  white-space: nowrap;
}
.kb-new {
  margin-left: auto;
  padding: 7px 12px;
  border: 1px dashed var(--border-amber);
  border-radius: 6px;
  background: transparent;
  color: var(--text-amber);
  font: 600 11px/1 var(--font-mono);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.kb-new:hover {
  border-color: var(--border-amber-strong);
  background: var(--accent-amber-bg);
}

/* ── New-task form ── */
.kb-form {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.kb-form[hidden] { display: none; }
.kb-input {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--border-amber);
  border-radius: 6px;
  background: var(--win-pane);
  color: var(--text-primary);
  font: 400 12px/1.2 var(--font-mono);
}
.kb-input:focus {
  outline: none;
  border-color: var(--border-amber-strong);
  box-shadow: var(--shadow-amber-glow);
}
.kb-add {
  padding: 8px 14px;
  border: 1px solid var(--border-amber);
  border-radius: 6px;
  background: var(--accent-amber-bg);
  color: var(--accent-amber);
  font: 600 11px/1 var(--font-mono);
  cursor: pointer;
}

/* ── Board and columns ── */
.kb-board {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  align-items: start;
}
.kb-col {
  display: flex;
  flex-direction: column;
  min-height: 240px;
  border: 1px solid var(--win-border);
  border-radius: 8px;
  background: var(--win-pane);
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.kb-col--over {
  border-color: var(--border-amber-strong);
  background: linear-gradient(180deg, rgba(240, 179, 75, 0.07), transparent);
}
.kb-col-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 9px 8px;
  border-bottom: 1px solid var(--win-border);
}
.kb-dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 2px;
}
.kb-col[data-status="todo"] .kb-dot { background: var(--text-faint); }
.kb-col[data-status="progress"] .kb-dot { background: var(--accent-amber); }
.kb-col[data-status="review"] .kb-dot { background: var(--accent-violet); }
.kb-col[data-status="complete"] .kb-dot { background: var(--accent-success); }
.kb-col[data-status="cancelled"] .kb-dot { background: var(--accent-rose); }
.kb-col-name {
  font: 600 9px/1 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kb-count {
  margin-left: auto;
  min-width: 16px;
  padding: 3px 4px;
  border-radius: 4px;
  background: rgba(244, 244, 241, 0.06);
  font: 600 9px/1 var(--font-mono);
  color: var(--text-faint);
  text-align: center;
}
.kb-cards {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 8px;
}
.kb-empty {
  margin: auto;
  padding: 18px 0;
  font: 400 10px/1 var(--font-mono);
  color: var(--text-faint);
}

/* ── Cards ── */
.kb-card {
  padding: 9px 10px;
  border: 1px solid var(--win-border);
  border-radius: 6px;
  background: var(--bg-elevated);
  cursor: grab;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}
.kb-card:focus-visible {
  outline: none;
  border-color: var(--border-amber-strong);
  box-shadow: var(--shadow-amber-glow);
}
.kb-card-title {
  margin: 0 0 4px;
  font: 600 11px/1.35 var(--font-sans);
  color: var(--text-primary);
}
.kb-card-snippet {
  margin: 0;
  font: 400 10px/1.5 var(--font-mono);
  color: var(--text-muted);
}
.kb-card--review { border-left: 2px solid var(--accent-amber); }

.kb-agent {
  display: flex;
  gap: 6px;
  margin-top: 7px;
  padding: 6px 7px;
  border: 1px solid rgba(89, 212, 226, 0.18);
  border-radius: 5px;
  background: rgba(89, 212, 226, 0.06);
}
.kb-agent-avatar {
  color: var(--accent-cyan);
  font-size: 10px;
  line-height: 1.4;
}
.kb-agent-text {
  margin: 0;
  font: 400 9.5px/1.5 var(--font-mono);
  color: var(--text-muted);
}
.kb-chips {
  display: flex;
  gap: 5px;
  margin-top: 7px;
}
.kb-chip {
  padding: 3px 6px;
  border: 1px solid var(--win-border);
  border-radius: 999px;
  font: 500 8.5px/1 var(--font-mono);
  color: var(--text-faint);
}

/* ── Drag states ── */
.kb-card--drag {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 60;
  margin: 0;
  pointer-events: none;
  cursor: grabbing;
  border-color: var(--border-amber-strong);
  box-shadow: var(--shadow-amber-glow), 0 18px 40px rgba(0, 0, 0, 0.5);
}
.kb-card--ghost {
  opacity: 0.35;
  border-style: dashed;
}
/* Clone used by the scripted intro drag */
.kb-card--fly {
  position: fixed;
  z-index: 60;
  margin: 0;
  pointer-events: none;
  border-color: var(--border-amber-strong);
  box-shadow: var(--shadow-amber-glow), 0 18px 40px rgba(0, 0, 0, 0.5);
  transition: transform 0.9s var(--ease);
}

/* ── Mobile: horizontally scroll-snapped columns ── */
@media (max-width: 760px) {
  .kb { padding: 18px 16px 0; }
  .kb-toolbar { flex-wrap: wrap; }
  .kb-board {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 6px;
    mask-image: linear-gradient(90deg, #000 92%, transparent);
    -webkit-mask-image: linear-gradient(90deg, #000 92%, transparent);
  }
  .kb-col {
    flex: 0 0 74%;
    scroll-snap-align: start;
    min-height: 200px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .kb-new, .kb-col, .kb-card--fly { transition: none; }
}