/* HOM-157: My chess stack page. Theme tokens only; text never below 12px. */
.stack-nav{white-space:nowrap}
.stack-nav-short{display:none}
body.stack-active .stack-nav{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-text)}
body.stack-active .sidebar{display:none}
body.stack-active .layout{grid-template-columns:minmax(0,1fr)}
.stack-view{max-width:1320px;margin:0 auto}
.stack-glyphs,.stack-sq-piece,.stack-group-glyph,.stack-legend span{font-family:"Segoe UI Symbol","Apple Symbols","Noto Sans Symbols 2","DejaVu Sans",serif}

/* Hero: what this page is, what to do next, and the stack on the board. */
.stack-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,400px);gap:36px;align-items:center;padding:10px 0 26px}
.stack-eyebrow{display:flex;align-items:center;gap:6px;margin:0 0 10px;color:var(--accent-text);font-size:var(--fs-sm);font-weight:700;letter-spacing:.02em}
.stack-hero h1{margin:0 0 12px}
.stack-sub{max-width:62ch;margin:0 0 18px;color:var(--ink-2);font-size:var(--fs-lg);line-height:1.6}
.stack-flow{display:flex;flex-wrap:wrap;align-items:flex-start;gap:8px 12px;margin:4px 0 18px;padding:0;list-style:none}
.stack-flow-step{display:grid;justify-items:center;gap:8px;width:108px;color:var(--ink-2);font-size:var(--fs-sm);font-weight:650;line-height:1.3;text-align:center}
.stack-flow-icon{display:grid;place-items:center;width:58px;height:58px;border-radius:18px;background:var(--accent-soft);color:var(--accent-text);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--accent) 18%,transparent)}
.stack-flow-icon .icon{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.stack-flow-arrow{align-self:center;margin-top:-26px;color:var(--muted);font-size:20px}
.stack-flow.is-summary .stack-flow-step{width:84px}
.stack-flow.is-summary .stack-flow-icon{width:50px;height:50px;border-radius:50%;background:var(--surface-3);color:var(--ink);box-shadow:none}
.stack-flow.is-summary .stack-flow-arrow{display:none}
.stack-chips{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 20px}
.stack-chips ul{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.stack-chips li{display:flex;align-items:center;gap:6px;padding:5px 10px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink-2);font-size:var(--fs-sm);font-weight:600}
.stack-chips .icon{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;color:var(--accent-text)}
.stack-chips-lead{color:var(--muted);font-size:var(--fs-sm);font-weight:600}
.stack-chips-lead:empty{display:none}
.stack-hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.stack-hero-actions .button{min-height:44px;padding:11px 18px;font-size:var(--fs-md)}
.stack-note{margin:0 0 16px;padding:10px 12px;border:1px solid var(--warn-line);border-radius:var(--r-md);background:var(--warn-soft);color:var(--warn);font-size:var(--fs-sm)}
.stack-preview-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin:0 0 14px;padding:10px 14px;border:1px solid var(--gold-line);border-radius:var(--r-md);background:var(--gold-soft);color:var(--ink-2);font-size:var(--fs-sm)}
.stack-preview-bar strong{color:var(--gold)}

/* The army: pawns on rank 2, pieces on rank 1, as a player sees their own side. */
.stack-board{margin:0}
.stack-army{width:100%;border:7px solid var(--board-frame);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-md)}
.stack-rank{display:grid;grid-template-columns:repeat(8,minmax(0,1fr))}
.stack-sq{position:relative;display:grid;place-items:center;aspect-ratio:1}
.stack-sq.light{background:var(--board-light)}
.stack-sq.dark{background:var(--board-dark)}
.stack-sq .tile{display:grid;place-items:center;width:76%;aspect-ratio:1;overflow:hidden;border-radius:22%;background:var(--tile);box-shadow:var(--tile-shadow)}
.stack-sq .tile img{width:82%;height:82%;object-fit:contain}
.stack-sq .tile b{color:var(--tile-ink);font-size:12px}
.stack-sq-piece{color:var(--muted);font-size:clamp(18px,4.6vw,32px);line-height:1;opacity:.6}
.stack-sq.filled .stack-sq-piece{position:absolute;right:1px;bottom:1px;display:grid;place-items:center;min-width:18px;height:18px;padding:0 1px;border-radius:5px;background:var(--surface);box-shadow:var(--tile-shadow);color:var(--ink);font-size:13px;opacity:1}
.stack-legend{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 14px;margin:12px 0 0;padding:0;list-style:none;color:var(--muted);font-size:var(--fs-xs)}
.stack-legend span{color:var(--ink);font-size:15px}

/* Share: one obvious place to copy the link; Clear is red and sits apart. */
.stack-share{display:grid;gap:12px;margin:0 0 28px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow-sm)}
.stack-share.is-empty{border-style:dashed;box-shadow:none;background:transparent}
.stack-share h2{margin:0 0 4px;font-family:var(--font-ui);font-size:var(--fs-xl);font-weight:700}
.stack-share p{margin:0;color:var(--muted);font-size:var(--fs-sm);line-height:1.5}
.stack-link{display:flex;gap:8px}
.stack-link input{flex:1;min-width:0;padding:10px 12px;border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--surface-2);color:var(--ink);font-size:var(--fs-md)}
.stack-link .button{min-height:42px}
.stack-share-more{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.button.stack-danger{margin-left:auto;border:1px solid var(--reset);background:var(--reset);color:var(--paper)}
.button.stack-danger:hover{border-color:var(--reset);background:var(--reset);color:var(--paper);filter:brightness(.9)}

/* Pieces: each group shows its apps as full directory rows. */
.stack-table-heading{margin-top:4px}
.stack-group{margin:0 0 22px}
.stack-group-head{display:flex;align-items:center;gap:12px;margin:0 0 10px;padding:0 4px}
.stack-group-glyph{display:grid;place-items:center;width:40px;height:40px;flex:0 0 40px;border-radius:12px;background:var(--surface-3);color:var(--ink);font-size:24px;line-height:1}
.stack-group-head h2{margin:0;font-family:var(--font-ui);font-size:var(--fs-lg);font-weight:700;line-height:1.2}
.stack-group-role{display:block;color:var(--muted);font-size:var(--fs-sm)}
.stack-group-count{margin-left:auto;color:var(--muted);font-size:var(--fs-sm)}
.stack-view .app-row .stack-row-piece{color:var(--ink);font-family:"Segoe UI Symbol","Apple Symbols","Noto Sans Symbols 2","DejaVu Sans",serif;font-size:22px;font-weight:400;line-height:1;text-align:center}
.stack-entry .app-row{margin-bottom:0;border-bottom-left-radius:0;border-bottom-right-radius:0}
.stack-entry{margin-bottom:10px}
.stack-entry-tools{display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px 16px;padding:7px 14px;border:1px solid var(--line);border-top:0;border-radius:0 0 var(--r-md) var(--r-md);background:var(--surface-2);color:var(--muted);font-size:var(--fs-sm)}
.stack-entry-tools label{display:flex;align-items:center;gap:8px}
.stack-entry-tools select{padding:6px 8px;border:1px solid var(--line-strong);border-radius:var(--r-sm);background:var(--surface);color:var(--ink);font-size:var(--fs-sm)}
.stack-remove{padding:6px 4px;color:var(--reset);font-size:var(--fs-sm);font-weight:650}
.stack-remove:hover{text-decoration:underline}
.stack-empty-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 16px;padding:14px 16px;border:1px dashed var(--line-strong);border-radius:var(--r-md);color:var(--muted);font-size:var(--fs-sm)}
.stack-group>.stack-add{margin-top:2px}

/* Adding: search plus suggestion cards with a one-line summary. */
.stack-picker{margin:4px 0 0;padding:14px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface-2)}
.stack-picker-head{display:flex;gap:8px}
.stack-search{flex:1;min-width:0}
.stack-search input{width:100%;padding:10px 12px;border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--surface);color:var(--ink);font-size:16px}
.stack-picker .fine{margin:8px 2px}
.stack-options{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px;margin:0;padding:0;list-style:none}
.stack-option{display:grid;grid-template-columns:36px minmax(0,1fr);gap:10px;align-items:start;width:100%;height:100%;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);text-align:left}
.stack-option:hover,.stack-option:focus-visible{border-color:var(--accent);box-shadow:var(--shadow-sm)}
.stack-option .app-logo{width:36px;height:36px;flex-basis:36px;border-radius:9px}
.stack-option>span{display:grid;gap:2px;min-width:0}
.stack-option strong{overflow:hidden;color:var(--ink);font-size:var(--fs-md);text-overflow:ellipsis;white-space:nowrap}
.stack-option small{color:var(--muted);font-size:var(--fs-xs)}
.stack-option-summary{display:-webkit-box;overflow:hidden;color:var(--ink-2);font-size:var(--fs-xs);line-height:1.45;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.stack-none{padding:6px 2px;color:var(--muted);font-size:var(--fs-sm)}

.stack-cta{margin:30px 0 10px;padding:30px 24px;border-radius:var(--r-lg);background:var(--accent-soft);text-align:center}
.stack-cta h2{margin:0 0 8px;font-size:var(--fs-2xl)}
.stack-cta p{max-width:52ch;margin:0 auto 16px;color:var(--ink-2);line-height:1.55}
.stack-cta .button{min-height:44px;padding:11px 18px;font-size:var(--fs-md)}

.stack-toast{position:fixed;z-index:70;left:50%;bottom:24px;display:flex;align-items:center;gap:14px;max-width:calc(100vw - 32px);padding:12px 16px;border-radius:var(--r-md);background:var(--ink);box-shadow:var(--shadow-md);color:var(--paper);font-size:var(--fs-sm);transform:translateX(-50%)}
.stack-toast[hidden]{display:none}
/* Like the page toast, a stack notice takes priority over the floating Ko-fi button (HOM-159). */
body:has(.stack-toast:not([hidden])) .support-button{display:none}
.stack-toast button{color:var(--paper);font-size:var(--fs-sm);font-weight:700;text-decoration:underline}

@media (max-width:960px){
 .stack-hero{grid-template-columns:minmax(0,1fr);gap:22px}
 .stack-board{max-width:440px}
}
@media (max-width:800px){
 .stack-nav-long{display:none}
 .stack-nav-short{display:inline}
 .stack-share{padding:16px}
 .stack-flow{flex-wrap:nowrap;gap:4px}
 .stack-flow-step{flex:1 1 0;width:auto;min-width:0}
 .stack-flow-arrow{flex:0 0 auto}
 .stack-link{flex-direction:column}
 .button.stack-danger{margin-left:0}
 .stack-hero-actions .button{flex:1 1 auto;justify-content:center}
 .stack-toast{bottom:16px;width:calc(100vw - 32px);justify-content:space-between}
}