/* =====================================================================
   .qk-lobby — unified Versus lobby component
   Hoisted from design-imports/qk-lobby.html. Conceptually replaces three
   per-game lobby implementations once Phase 2 refactors land:
     - .rps-*  in /games/rps.html
     - .pong-* in /games/pong.html
     - .bs-*   in /games/battleship.html
   For Phase 1 the file is loaded by all three pages (so the new classes
   are AVAILABLE) but the per-game lobbies still render with their own
   .rps-*, .pong-*, .bs-* CSS — no behaviour change yet. The qk-lobby-*
   prefix avoids any collisions.
   Tokens come from stake.css; this file deliberately has NO :root block.
   ===================================================================== */

/* Layout: create card on the left, open-lobbies panel on the right. */
.qk-lobby {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(320px, 1fr);
  gap: 20px;
  align-items: start;

  /* Per-game accent. Override .qk-lobby[data-accent="..."] below. */
  --qk-accent:        var(--qk-cyan);
  --qk-accent-soft:   rgba(102,255,229,.35);
  --qk-accent-ring:   rgba(102,255,229,.12);
  --qk-accent-alt:    var(--qk-red);
  --qk-accent-alt-s:  rgba(255,69,103,.55);
}
@media (max-width: 900px) {
  .qk-lobby { grid-template-columns: 1fr; }
}

/* ---- Create card ---- */
.qk-lobby-create-card {
  position: relative;
  background: var(--s-bg-2);
  border: 1px solid var(--s-line);
  border-radius: 14px;
  padding: 22px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
  isolation: isolate;
}
.qk-lobby-create-card::before {
  content: "";
  position: absolute; inset: -2px;
  border-radius: 16px;
  background: conic-gradient(
    from 0deg,
    var(--qk-accent-alt-s)  0%,
    rgba(255,69,103,0)     18%,
    rgba(102,255,229,0)    42%,
    rgba(102,255,229,.55)  50%,
    rgba(102,255,229,0)    58%,
    rgba(79,195,247,0)     82%,
    rgba(79,195,247,.55)  100%);
  filter: blur(12px);
  opacity: .55;
  z-index: -1;
  animation: qkLobbyGlow 9s linear infinite;
}
@keyframes qkLobbyGlow { 0%{transform:rotate(0)} 100%{transform:rotate(360deg)} }
.qk-lobby-create-card::after {
  content: "";
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    180deg,
    transparent 0 3px,
    rgba(255,255,255,.015) 3px 4px);
  border-radius: 14px;
  pointer-events: none;
  z-index: 0;
}
.qk-lobby-create-card > * { position: relative; z-index: 1; }

.qk-lobby-create-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px; margin: 0 0 14px;
}
.qk-lobby-create-head h3 {
  font-size: 16px; margin: 0; color: var(--s-text);
  letter-spacing: .04em; font-weight: 800; text-transform: uppercase;
}
.qk-lobby-create-sub {
  font-size: 11px; color: var(--s-muted); letter-spacing: .06em;
  text-transform: uppercase; font-weight: 700;
}

.qk-lobby-form { display: flex; flex-direction: column; gap: 12px; }
.qk-lobby-label {
  font-size: 12px; font-weight: 700; color: var(--s-muted);
  letter-spacing: .06em; text-transform: uppercase; margin: 0;
}
.qk-lobby-hint {
  font-size: 12px; color: var(--s-muted-2);
  margin: -4px 0 4px; line-height: 1.4;
}
.qk-lobby-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}

.qk-lobby-input {
  width: 100%;
  padding: 10px 12px;
  background: var(--s-bg);
  border: 1px solid var(--s-line);
  border-radius: 10px;
  color: var(--s-text);
  font-size: 15px; font-weight: 600;
  outline: none; font-family: inherit;
  font-variant-numeric: tabular-nums;
  transition: border-color .15s, box-shadow .15s;
}
.qk-lobby-input:focus {
  border-color: var(--qk-accent-soft);
  box-shadow: 0 0 0 3px var(--qk-accent-ring);
}

/* Picker slot — the only game-specific surface inside .qk-lobby. */
.qk-lobby-picker {
  display: flex; flex-direction: column; gap: 8px;
  margin: 2px 0 4px;
}

/* Pill group (Pong best-of, RPS mode). */
.qk-lobby-pills {
  display: inline-flex; gap: 4px; padding: 4px;
  background: var(--s-bg-3);
  border: 1px solid var(--s-line);
  border-radius: 10px;
  width: fit-content;
}
.qk-lobby-pill {
  padding: 7px 16px;
  background: transparent; border: 0; border-radius: 8px;
  color: var(--s-muted); font-weight: 700; font-size: 13px;
  cursor: pointer; font-family: inherit;
  transition: background .15s, color .15s, box-shadow .15s;
}
.qk-lobby-pill:hover { color: var(--s-text); background: var(--s-bg-4); }
.qk-lobby-pill.active {
  background: var(--s-green); color: #061108;
  box-shadow: 0 0 14px rgba(127,248,0,.45);
}

/* Toggle. */
.qk-lobby-switch {
  position: relative; display: inline-flex; align-items: center; gap: 10px;
  cursor: pointer; user-select: none;
}
.qk-lobby-switch input[type="checkbox"] {
  position: absolute; opacity: 0; pointer-events: none; width: 1px; height: 1px;
}
.qk-lobby-switch-track {
  position: relative; width: 48px; height: 24px;
  background: var(--s-bg-3); border: 1px solid var(--s-line);
  border-radius: 999px;
  transition: background .15s, border-color .15s; box-sizing: border-box;
}
.qk-lobby-switch-thumb {
  position: absolute; top: 2px; left: 2px;
  width: 18px; height: 18px;
  background: var(--s-muted); border-radius: 50%;
  transition: transform .18s cubic-bezier(.2,1.2,.3,1), background .15s;
}
.qk-lobby-switch input:checked + .qk-lobby-switch-track {
  background: rgba(127,248,0,.2);
  border-color: rgba(127,248,0,.5);
}
.qk-lobby-switch input:checked + .qk-lobby-switch-track .qk-lobby-switch-thumb {
  transform: translateX(22px);
  background: var(--s-green);
  box-shadow: 0 0 10px rgba(127,248,0,.6);
}
.qk-lobby-switch-label {
  font-size: 12px; font-weight: 800; color: var(--s-text);
  letter-spacing: .08em; min-width: 30px; text-align: left;
}

/* RPS choice tiles. */
.qk-lobby-choices { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }
.qk-lobby-choice {
  aspect-ratio: 1/1;
  background: var(--s-bg-3); border: 1px solid var(--s-line);
  border-radius: 12px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 36px; font-family: inherit;
  transition: border-color .15s, background .15s, transform .1s;
}
.qk-lobby-choice:hover {
  border-color: var(--qk-accent-soft);
  background: var(--s-bg-4);
  transform: translateY(-1px);
}
.qk-lobby-choice.selected {
  border-color: var(--qk-accent);
  background: rgba(176,97,255,.08);
  box-shadow: 0 0 18px rgba(176,97,255,.2), inset 0 0 0 1px rgba(176,97,255,.35);
}

/* Battleship fleet picker. */
.qk-lobby-fleet { display: flex; flex-direction: column; gap: 8px; }
.qk-lobby-ship-row {
  display: grid;
  grid-template-columns: 1fr auto 22px;
  align-items: center; gap: 12px;
  padding: 10px 14px;
  background: var(--s-bg-3);
  border: 1px solid var(--s-line);
  border-radius: 10px;
  color: var(--s-text);
  cursor: pointer;
  transition: border-color .15s, background .15s, transform .1s, box-shadow .15s;
  text-align: left;
  min-height: 48px;
  position: relative;
}
.qk-lobby-ship-row:hover {
  background: var(--s-bg-4);
  border-color: var(--qk-accent-soft);
}
.qk-lobby-ship-row.selected {
  border-color: var(--qk-accent);
  background: rgba(102,255,229,.08);
  box-shadow: 0 0 18px rgba(102,255,229,.2), inset 0 0 0 1px rgba(102,255,229,.35);
}
.qk-lobby-ship-silhouette {
  display: flex; align-items: center; height: 22px;
  gap: 2px; letter-spacing: 0;
  color: var(--qk-accent);
  filter: drop-shadow(0 1px 4px rgba(0,0,0,.5));
}
.qk-lobby-ship-silhouette i {
  display: block; height: 14px;
  background: currentColor;
  border-radius: 3px; opacity: .9;
}
.qk-lobby-ship-meta {
  display: flex; flex-direction: column; align-items: flex-end;
  gap: 2px; min-width: 90px;
}
.qk-lobby-ship-name {
  font-size: 14px; font-weight: 800; color: var(--s-text); letter-spacing: .02em;
}
.qk-lobby-ship-cells {
  font-size: 11px; font-weight: 700; color: var(--s-muted);
  letter-spacing: .04em; text-transform: uppercase;
}
.qk-lobby-ship-check {
  position: relative; width: 22px; height: 22px; border-radius: 6px;
  background: var(--s-bg); border: 1px solid var(--s-line);
  transition: background .15s, border-color .15s;
}
.qk-lobby-ship-row.selected .qk-lobby-ship-check {
  background: var(--qk-accent); border-color: var(--qk-accent);
  box-shadow: 0 0 10px rgba(102,255,229,.55);
}
.qk-lobby-ship-row.selected .qk-lobby-ship-check::after {
  content: ""; position: absolute;
  left: 6px; top: 2px; width: 5px; height: 11px;
  border: solid #041012; border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
}

/* ---- Open-lobbies panel ---- */
.qk-lobby-open {
  background: var(--s-bg-2);
  border: 1px solid var(--s-line);
  border-radius: 14px;
  padding: 18px;
  min-height: 260px;
  display: flex; flex-direction: column;
}
.qk-lobby-open-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin: 0 0 12px;
}
.qk-lobby-open-head h3 {
  font-size: 16px; color: var(--s-text); margin: 0;
  font-weight: 800; letter-spacing: .04em; text-transform: uppercase;
}
.qk-lobby-open-count {
  font-size: 11px; color: var(--s-muted);
  background: var(--s-bg-3);
  padding: 3px 10px; border-radius: 999px; font-weight: 700;
  border: 1px solid var(--s-line);
}
.qk-lobby-refresh {
  background: var(--s-bg-3);
  border: 1px solid var(--s-line);
  color: var(--s-muted);
  width: 32px; height: 32px;
  border-radius: 8px;
  font-size: 16px; cursor: pointer; font-family: inherit;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .12s, transform .5s, color .12s;
}
.qk-lobby-refresh:hover { background: var(--s-bg-4); color: var(--s-text); }
.qk-lobby-refresh:active { transform: rotate(180deg); }
.qk-lobby-refresh svg { width: 16px; height: 16px; }

.qk-lobby-list { display: flex; flex-direction: column; gap: 8px; }

.qk-lobby-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--s-bg-3);
  border: 1px solid var(--s-line);
  border-radius: 12px;
  transition: background .12s, border-color .12s, transform .12s;
  overflow: hidden;
}
.qk-lobby-card::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--qk-accent);
  box-shadow: 0 0 10px var(--qk-accent);
  opacity: .85;
}
.qk-lobby-card:nth-child(even)::before {
  background: var(--qk-accent-alt);
  box-shadow: 0 0 10px var(--qk-accent-alt);
}
.qk-lobby-card:hover:not(.yours) {
  background: var(--s-bg-4);
  border-color: var(--qk-accent-soft);
  transform: translateY(-1px);
}
.qk-lobby-card.yours {
  background: rgba(127,248,0,.06);
  border-color: rgba(127,248,0,.3);
}
.qk-lobby-card .bet {
  color: var(--s-green);
  font-weight: 900; font-size: 18px;
  font-variant-numeric: tabular-nums;
  padding-left: 8px;
  min-width: 72px;
}
.qk-lobby-card .who {
  display: flex; flex-direction: column; gap: 3px; min-width: 0;
}
.qk-lobby-card .who .name {
  font-weight: 700; font-size: 13px; color: var(--s-text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.qk-lobby-card .who .sub {
  font-size: 11px; color: var(--s-muted);
  letter-spacing: .06em; text-transform: uppercase; font-weight: 700;
}
.qk-lobby-card .actions { display: flex; gap: 6px; }

.qk-lobby-empty {
  padding: 24px 12px;
  color: var(--s-muted);
  font-size: 13px;
  text-align: center;
  border: 1px dashed var(--s-line);
  border-radius: 10px;
}

/* Richer empty state from qk-empty-states.html. */
.qk-lobby-empty-rich {
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 14px;
  padding: 18px 22px 22px;
  text-align: center;
  border: 1px dashed var(--s-line);
  border-radius: 12px;
  position: relative; overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(102,255,229,.05), transparent 60%),
    var(--s-bg);
}
.qk-lobby-empty-rich::after {
  content: "";
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    180deg, transparent 0 3px, rgba(255,255,255,.015) 3px 4px);
  pointer-events: none;
}
.qk-lobby-empty-rich > * { position: relative; z-index: 1; }
.qk-lobby-empty-title {
  margin: 0;
  font-size: 17px; font-weight: 800; color: var(--s-text);
  letter-spacing: -.01em; line-height: 1.25;
}
.qk-lobby-empty-body {
  margin: 0; max-width: 340px;
  font-size: 13px; color: var(--s-muted); line-height: 1.5;
}
.qk-lobby-empty-cta {
  margin-top: 4px;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12px; font-weight: 800;
  letter-spacing: .06em; text-transform: uppercase;
  color: var(--s-green);
  background: rgba(127,248,0,.08);
  border: 1px solid rgba(127,248,0,.32);
  transition: background .15s, border-color .15s, transform .15s, box-shadow .15s;
  text-decoration: none; cursor: pointer;
  font-family: inherit;
}
.qk-lobby-empty-cta:hover {
  background: rgba(127,248,0,.16);
  border-color: var(--s-green);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(127,248,0,.2);
}
.qk-lobby-empty-cta .arrow {
  display: inline-block;
  transform: translate(-1px,-1px);
  animation: qkLobbyEmptyArrow 2.4s ease-in-out infinite;
}
@keyframes qkLobbyEmptyArrow {
  0%,100% { transform: translate(-1px,-1px); }
  50%     { transform: translate(-5px,-5px); }
}

/* ---- Per-game accent overrides ---- */
.qk-lobby[data-accent="rps"] {
  --qk-accent:       var(--qk-purp);
  --qk-accent-soft:  rgba(176,97,255,.35);
  --qk-accent-ring:  rgba(176,97,255,.14);
  --qk-accent-alt:   var(--s-green);
  --qk-accent-alt-s: rgba(127,248,0,.55);
}
.qk-lobby[data-accent="rps"] .qk-lobby-choice.selected {
  border-color: var(--qk-purp);
  background: rgba(176,97,255,.08);
  box-shadow: 0 0 18px rgba(176,97,255,.2), inset 0 0 0 1px rgba(176,97,255,.35);
}

.qk-lobby[data-accent="pong"] {
  --qk-accent:       var(--qk-cyan);
  --qk-accent-soft:  rgba(102,255,229,.35);
  --qk-accent-ring:  rgba(102,255,229,.12);
  --qk-accent-alt:   var(--qk-red);
  --qk-accent-alt-s: rgba(255,69,103,.55);
}

.qk-lobby[data-accent="battleship"] {
  --qk-accent:       var(--qk-red);
  --qk-accent-soft:  rgba(255,69,103,.4);
  --qk-accent-ring:  rgba(255,69,103,.14);
  --qk-accent-alt:   var(--qk-blue);
  --qk-accent-alt-s: rgba(79,195,247,.55);
}
.qk-lobby[data-accent="battleship"] .qk-lobby-ship-row.selected {
  border-color: var(--qk-cyan);
  background: rgba(102,255,229,.08);
  box-shadow: 0 0 18px rgba(102,255,229,.2), inset 0 0 0 1px rgba(102,255,229,.35);
}
.qk-lobby[data-accent="battleship"] .qk-lobby-ship-silhouette { color: var(--qk-cyan); }