/* Composition for the Momentum kanban board. Every value is a token from
   styles/system.css :root — no raw hex, no invented shadow, one elevation. */

/* The sprite svg carries no size of its own — give every referenced icon an
   explicit box or it renders at the svg default (huge). Base size 20px, small
   for the dense card actions. */
.ax-i{width:20px;height:20px;flex:none}
.ax-i-sm{width:16px;height:16px}
.ax-icon-btn .ax-i{width:20px;height:20px}

/* Only the three column tints are bespoke, and each is a soft tonal wash that
   keeps text readable (≥4.5:1 on the ink tokens). The dot repeats the tint. */
.column[data-col="todo"]      {--col:#4f6ef7; --col-bg:color-mix(in oklab, var(--surface) 92%, #4f6ef7)}
.column[data-col="progress"] {--col:#0f766e; --col-bg:color-mix(in oklab, var(--surface) 92%, #0f766e)}
.column[data-col="done"]     {--col:#16a34a; --col-bg:color-mix(in oklab, var(--surface) 92%, #16a34a)}

.board-head{padding-block:var(--space-8);display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);flex-wrap:wrap}
.brand-row{display:flex;align-items:center;gap:var(--space-3)}
.mark{display:grid;place-items:center;width:2.75rem;aspect-ratio:1;border-radius:var(--radius);background:var(--surface-raised);border:1px solid var(--line);color:var(--accent);font-size:var(--step-1)}
.brand-text h1{margin-bottom:var(--space-1);font-size:var(--step-2)}
.brand-text p{margin:0;font-size:var(--step--1)}
.head-actions{gap:var(--space-3)}
.ax-btn.small,.ax-icon-btn.small{padding:var(--space-1) var(--space-3)}

/* The board: three columns sit in a responsive row that wraps to a vertical
   stack on phones. Generous negative space so the cards read as the focus. */
.board{padding-block:var(--space-6) var(--space-8);min-width:0;overflow-x:clip}
.columns{display:grid;gap:var(--space-4);grid-template-columns:repeat(auto-fit,minmax(min(100%,16rem),1fr));align-items:start;min-width:0}
@media (max-width:760px){.columns{grid-template-columns:1fr}}

.column{background:var(--col-bg);border:1px solid var(--line);border-radius:var(--radius-lg);display:flex;flex-direction:column;min-height:12rem;min-width:0;max-width:100%}
.column[data-col="done"]{background:color-mix(in oklab, var(--col-bg) 96%, var(--ok))}
.col-head{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--line)}
.col-dot{width:10px;aspect-ratio:1;border-radius:999px;background:var(--col)}
.col-title{font-size:var(--step-0);font-weight:600;margin:0;font-family:var(--font-text);color:var(--ink)}
.col-count{font-size:var(--step--1);color:var(--ink-muted);font-variant-numeric:tabular-nums}
.col-add{margin-left:auto;width:44px;height:44px;color:var(--ink-muted);border:1px solid var(--line)}
.col-add .ax-i{width:20px;height:20px;color:var(--col)}

.cards{flex:1;padding:var(--space-3);min-height:4rem}
.card{background:var(--surface-raised);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:var(--space-3) var(--space-3) var(--space-2);min-width:0;display:flex;align-items:flex-start;gap:var(--space-2)}
.card p{flex:1;margin:0;white-space:pre-wrap;overflow-wrap:anywhere}
.card .card-actions{display:flex;align-items:center;gap:var(--space-1)}
.card .grip{color:var(--ink-muted);opacity:.45;cursor:grab}
.card .del{color:var(--danger);padding:var(--space-2)}
.card .del:hover{background:var(--surface-raised)}

/* Drag-and-drop: the dragged card lifts one elevation step, the column it
   hovers over gains a faint ring, and the exact drop point gets an inset line. */
.column.drop-target .cards{outline:1px dashed var(--col);outline-offset:-2px;background:var(--surface-raised)}
.card.dragging{opacity:.45;box-shadow:var(--shadow)}
.card.ghost{opacity:0;border-style:dashed;border-color:var(--col)}
.card.drop-before::before{content:"";position:absolute;inset-inline:0;top:-6px;left:var(--space-2);right:var(--space-2);height:3px;border-radius:999px;background:var(--col)}
.card{position:relative}
body.dragging{cursor:grabbing}
body.dragging .column .cards>*:not(.dragging){pointer-events:none}

/* Adding a card: the form is hidden until the column + is tapped, keeping the
   board uncluttered while the action is still one tap away. */
.add-form{display:grid;gap:var(--space-2);padding:var(--space-3)}
.add-form .ax-row{justify-content:flex-end}
.add-form.hidden{display:none}
.add-form input{min-height:44px}

#card-count{background:var(--surface-raised)}
#board-empty{margin-top:var(--space-4)}

/* Motion helpers already in acuvo-motion.js; a narrow tasteful touch is safe. */
.card.dragging{animation:var(--animation-scale-up)}
.card{transition:transform .18s var(--ease),box-shadow .18s var(--ease)}

@media (prefers-reduced-motion:reduce){
  .card{transition:none;animation:none}
}