/* Neon Solitaire — DOM cards, neon spec: #0a0a18 space, cyan/pink/violet,
 * fake glow via layered translucent borders (no shadowBlur). */
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; }
body {
  background: #0a0a18;
  color: #dfe6ff;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
  overscroll-behavior: none;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}
:root { --cw: 48px; --ch: 68px; --gap: 4px; --cy: #00e5ff; --pk: #ff2d95; --vi: #7c4dff; }
#stage {
  height: 100dvh;
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  padding: 6px var(--gap) calc(6px + env(safe-area-inset-bottom));
  gap: 5px;
}

/* topbar + hud */
#topbar { display: flex; gap: 6px; align-items: center; }
.tab, .pill, .chip {
  font: inherit; color: #9fb2d8; background: #12122a;
  border: 1px solid #23234a; border-radius: 8px;
  min-height: 32px; padding: 4px 12px; cursor: pointer; font-size: 13px;
}
.tab.on {
  color: #00e5ff; border-color: #00e5ff66;
  box-shadow: 0 0 0 1px #00e5ff22, inset 0 0 12px #00e5ff1a;
}
.chip { margin-left: auto; font-size: 12px; border-color: #ff2d9566; color: #ffb3d4; }
#hud { display: flex; gap: 8px; align-items: center; flex-wrap: nowrap; }
.stat { display: flex; flex-direction: column; line-height: 1.1; min-width: 46px; }
.stat .lb { font-size: 9px; letter-spacing: .08em; color: #6f7ea8; }
.stat b { font-size: 14px; color: #eaf2ff; font-variant-numeric: tabular-nums; }
.hudbtns { margin-left: auto; display: flex; gap: 4px; }
.pill { min-width: 36px; min-height: 32px; padding: 4px 6px; font-size: 13px; }
.pill.hide, .hide { display: none !important; }

/* board */
#board { flex: 1; display: flex; flex-direction: column; gap: 8px; min-height: 0; }
#rowTop { display: grid; grid-template-columns: repeat(7, 1fr); gap: var(--gap); }
#rowTab { flex: 1; display: grid; grid-template-columns: repeat(7, 1fr); gap: var(--gap); min-height: 0; }
.colWrap { position: relative; }
.pile { position: relative; width: 100%; height: var(--ch); }
.pile.foundP, .pile.stockP { cursor: pointer; }
.ph {
  width: 100%; height: var(--ch); border-radius: calc(var(--cw) * .12);
  border: 1.5px dashed #2a2a55; display: flex; align-items: center; justify-content: center;
  color: #2f3f6e; font-size: calc(var(--cw) * .4); font-weight: 700;
}
.phA { border-color: #00e5ff44; color: #00e5ff55; }
.phK { border-color: #7c4dff55; color: #7c4dff88; }
.phS { border-color: #7c4dff55; color: #7c4dff88; }
.phS::after { content: "↻"; }
.phK::after { content: "K"; }
.phA::after { content: "A"; }

/* cards */
.card {
  position: absolute; left: 0; width: 100%; height: var(--ch);
  border-radius: calc(var(--cw) * .12);
  touch-action: none;
  cursor: grab;
}
.card.up {
  background: linear-gradient(160deg, #f7f9ff 0%, #dfe6f5 100%);
  border: 1px solid #b9c4e0;
  box-shadow: 0 1px 0 #ffffff88 inset, 0 2px 5px #00000066;
}
.card.up.dark { border-color: #00e5ff; box-shadow: 0 0 0 1px #00e5ff33, 0 0 9px #00e5ff22, 0 2px 5px #00000066; }
.card.up.red { border-color: #ff2d95; box-shadow: 0 0 0 1px #ff2d9533, 0 0 9px #ff2d9522, 0 2px 5px #00000066; }
.card .cr {
  position: absolute; top: 2px; left: 4px;
  font-size: calc(var(--cw) * .3); font-weight: 800; line-height: 1;
}
.card .cr.b { top: auto; left: auto; bottom: 2px; right: 4px; transform: rotate(180deg); }
.card .cs {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: calc(var(--cw) * .52);
}
.card.up.dark .cr, .card.up.dark .cs { color: #071318; text-shadow: 0 0 6px #00e5ff88; }
.card.up.red .cr, .card.up.red .cs { color: #3d0418; text-shadow: 0 0 6px #ff2d9588; }
.card.down {
  background: #141433;
  border: 1px solid #7c4dff;
  background-image: repeating-linear-gradient(45deg, #7c4dff22 0 5px, transparent 5px 10px),
    repeating-linear-gradient(-45deg, #7c4dff1a 0 5px, transparent 5px 10px);
  box-shadow: 0 0 8px #7c4dff2a inset;
}
.card.sel { outline: 2px solid #00e5ff; outline-offset: -1px; box-shadow: 0 0 12px #00e5ff88; z-index: 5; }
.card.selrun { outline: 1px dashed #00e5ff66; outline-offset: -1px; }
.card.kbf { outline: 2px dashed #ffd54a; outline-offset: 2px; z-index: 5; }
.card.pop { animation: pop .2s ease-out; }
@keyframes pop { 0% { transform: scale(1.12); } 100% { transform: scale(1); } }
.card.shake, .pile.shake { animation: shake .3s; }
@keyframes shake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
.hintf { animation: hintf 1.3s ease-in-out; }
@keyframes hintf { 0%,100% { filter: none; } 20%,60% { filter: drop-shadow(0 0 8px #ffd54a) brightness(1.3); } }
.pile.pulse { animation: fpulse .5s ease-out; }
@keyframes fpulse { 0% { box-shadow: 0 0 0 0 #00e5ff00; } 30% { box-shadow: 0 0 18px 2px #00e5ffaa; border-radius: 8px; } 100% { box-shadow: 0 0 0 0 #00e5ff00; } }
.selzone { outline: 2px solid #00e5ff66; outline-offset: 2px; border-radius: 8px; }
.ghost { z-index: 200; box-shadow: 0 8px 18px #000a, 0 0 14px #00e5ff55; cursor: grabbing; }
#dragLayer { position: fixed; inset: 0; pointer-events: none; z-index: 200; }
#dragLayer .ghost { transform: scale(1.05); }

/* msg toast */
#msg {
  position: absolute; left: 50%; bottom: 12px; transform: translateX(-50%) translateY(20px);
  background: #12122add; border: 1px solid #00e5ff44; color: #cfe9ff;
  padding: 6px 14px; border-radius: 16px; font-size: 12px; opacity: 0;
  transition: .25s; pointer-events: none; white-space: nowrap; max-width: 94%;
}
#msg.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* win overlay */
.overlay {
  position: fixed; inset: 0; background: #0a0a18d9;
  display: flex; align-items: center; justify-content: center; z-index: 300;
}
.panel {
  background: #101030; border: 1px solid #00e5ff55; border-radius: 14px;
  padding: 20px 24px; min-width: 260px; max-width: 86vw; text-align: center;
  box-shadow: 0 0 30px #00e5ff33;
}
.panel h2 { color: #00e5ff; font-size: 20px; margin-bottom: 6px; }
#wpStars { color: #ffd54a; font-size: 18px; margin-bottom: 10px; letter-spacing: .1em; }
#wpRows > div { display: flex; justify-content: space-between; gap: 24px; padding: 3px 0; font-size: 14px; }
#wpRows span { color: #8fa1cc; }
#wpRows .note { color: #6f7ea8; font-size: 12px; margin-top: 8px; }
.panel button {
  display: block; width: 100%; margin-top: 10px; font: inherit; cursor: pointer;
  background: #12122a; color: #dfe6ff; border: 1px solid #2a2a55;
  border-radius: 8px; min-height: 44px; padding: 8px;
}
.panel button.primary { background: linear-gradient(135deg, #00b8d4, #7c4dff); border: none; color: #fff; }

/* confetti + card rain */
.cf {
  position: fixed; top: -12px; width: 9px; height: 14px; z-index: 400; pointer-events: none;
  animation: cfall 1.6s ease-in forwards;
}
@keyframes cfall { to { transform: translateY(105vh) translateX(var(--dx, 0)) rotate(720deg); opacity: .8; } }
.rain {
  position: fixed; top: -80px; width: 46px; height: 66px; z-index: 399; pointer-events: none;
  border-radius: 6px; border: 1px solid #7c4dff; background: #141433;
  background-image: repeating-linear-gradient(45deg, #7c4dff22 0 5px, transparent 5px 10px);
  animation: rfall 2.4s ease-in forwards;
}
@keyframes rfall { to { transform: translateY(110vh) rotate(var(--spin, 540deg)); } }