:root {
  --bg: #0a0b17; --panel: rgba(24, 27, 48, .78); --line: rgba(255, 255, 255, .09);
  --text: #eef0ff; --dim: #8d93b8; --gold: #ffc233; --gold2: #ff8a1f; --cyan: #37e0ff; --pink: #ff4fa3;
  --good: #3ddc84; --bad: #ff5c6c; --radius: 18px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100dvh; background: var(--bg); color: var(--text); font: 16px/1.45 ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, sans-serif; overflow-x: hidden; }
[hidden] { display: none !important; }
code { font: 12px/1.4 ui-monospace, Menlo, Consolas, monospace; word-break: break-all; color: var(--dim); }
a { color: var(--cyan); }

/* Slow-drifting glow behind everything. */
.sky { position: fixed; inset: -20%; z-index: -1; pointer-events: none;
  background: radial-gradient(40% 35% at 20% 15%, rgba(255, 138, 31, .22), transparent 70%),
    radial-gradient(45% 40% at 85% 25%, rgba(55, 224, 255, .16), transparent 70%),
    radial-gradient(50% 45% at 50% 100%, rgba(255, 79, 163, .16), transparent 70%);
  animation: drift 26s ease-in-out infinite alternate; }
@keyframes drift { to { transform: translate3d(3%, -4%, 0) scale(1.08); } }
#fx { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 50; }

.top, main { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.top { display: flex; align-items: center; justify-content: space-between; padding-top: max(14px, env(safe-area-inset-top)); padding-bottom: 10px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 900; font-size: 20px; letter-spacing: 4px; }
.logo span { margin-left: 6px; background: linear-gradient(90deg, var(--gold), var(--gold2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.chip { width: 26px; height: 26px; border-radius: 8px; background: linear-gradient(135deg, var(--gold), var(--gold2)); box-shadow: 0 0 18px rgba(255, 170, 40, .6); position: relative; }
.chip::after { content: ""; position: absolute; inset: 7px; border-radius: 3px; background: var(--bg); }
.top-right { display: flex; align-items: center; gap: 10px; }
.mini-pot { padding: 6px 12px; border-radius: 99px; background: rgba(255, 194, 51, .12); border: 1px solid rgba(255, 194, 51, .35); font-size: 13px; color: var(--gold); font-variant-numeric: tabular-nums; }
.icon { width: 38px; height: 38px; border-radius: 12px; border: 1px solid var(--line); background: rgba(255, 255, 255, .05); color: var(--text); font-size: 16px; cursor: pointer; }
.icon:hover { background: rgba(255, 255, 255, .12); }
main { padding-bottom: 40px; }
section { animation: rise .45s cubic-bezier(.2, .8, .2, 1); }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }

/* ---- lobby ---- */
.hero { position: relative; text-align: center; padding: 26px 16px 20px; border-radius: 26px; overflow: hidden;
  background: linear-gradient(160deg, rgba(255, 194, 51, .16), rgba(255, 79, 163, .07) 55%, rgba(55, 224, 255, .08));
  border: 1px solid rgba(255, 194, 51, .32); box-shadow: 0 20px 60px -20px rgba(255, 150, 30, .45), inset 0 1px 0 rgba(255, 255, 255, .1); }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 35%, rgba(255, 255, 255, .13) 50%, transparent 65%); transform: translateX(-100%); animation: sheen 6s ease-in-out infinite; }
@keyframes sheen { 55%, 100% { transform: translateX(100%); } }
.eyebrow { font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: var(--gold); opacity: .9; }
.pot-line { display: flex; align-items: baseline; justify-content: center; gap: 10px; margin: 2px 0 8px; }
.pot-num { font-size: clamp(52px, 15vw, 92px); font-weight: 900; line-height: 1; font-variant-numeric: tabular-nums; letter-spacing: -2px;
  background: linear-gradient(180deg, #fff3c4, var(--gold) 45%, var(--gold2)); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 6px 22px rgba(255, 160, 30, .45)); display: inline-block; }
.pot-num.bump { animation: bump .5s cubic-bezier(.3, 1.6, .5, 1); }
@keyframes bump { 40% { transform: scale(1.12); } }
.pot-unit { font-weight: 800; letter-spacing: 3px; color: var(--gold); font-size: 16px; }
.hero-stats, .stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 6px; }
.stats { grid-template-columns: repeat(4, 1fr); margin: 14px 0; }
.hero-stats div, .stats div { background: rgba(10, 11, 23, .45); border: 1px solid var(--line); border-radius: 14px; padding: 8px 4px; }
.hero-stats b, .stats b { display: block; font-size: 18px; font-variant-numeric: tabular-nums; }
.hero-stats span, .stats span { font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: 1px; }
.champ { margin-top: 12px; font-size: 14px; color: var(--text); min-height: 1.4em; }
.champ b { color: var(--gold); }

.panel { margin-top: 14px; padding: 18px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
h2 { margin: 0 0 12px; font-size: 17px; }
h2 small { display: block; color: var(--dim); font-weight: 400; font-size: 12px; margin-top: 2px; }
label { display: block; color: var(--dim); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
input { width: 100%; padding: 13px 14px; border-radius: 14px; border: 1px solid var(--line); background: rgba(10, 11, 23, .6); color: var(--text); font: inherit; font-size: 17px; outline: none; transition: border-color .2s, box-shadow .2s; }
input:focus { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(55, 224, 255, .15); }
.modes { display: grid; grid-template-columns: 1fr 1.25fr; gap: 10px; margin-top: 14px; }
.btn { position: relative; cursor: pointer; padding: 14px 16px; border-radius: 16px; border: 1px solid var(--line); color: var(--text); font: inherit; text-align: center; transition: transform .12s, box-shadow .2s, filter .2s; overflow: hidden; }
.btn:hover { transform: translateY(-2px); filter: brightness(1.08); }
.btn:active { transform: translateY(1px) scale(.98); }
.btn:focus-visible, .icon:focus-visible, .card:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }
.btn-title { display: block; font-weight: 800; font-size: 17px; }
.btn small { display: block; font-size: 12px; opacity: .8; margin-top: 2px; }
.btn.ghost { background: rgba(255, 255, 255, .06); }
.btn.gold { background: linear-gradient(135deg, var(--gold), var(--gold2)); color: #2a1600; border-color: transparent; box-shadow: 0 10px 30px -8px rgba(255, 150, 30, .7); animation: breathe 2.6s ease-in-out infinite; }
@keyframes breathe { 50% { box-shadow: 0 10px 44px -4px rgba(255, 150, 30, .95); } }
.btn.wide { width: 100%; margin-top: 12px; }
.btn:disabled { opacity: .5; pointer-events: none; }
#pay { margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--line); animation: rise .3s; }
#invoice { margin-top: 12px; padding: 12px; border-radius: 14px; background: rgba(10, 11, 23, .5); border: 1px solid var(--line); }
#invoice p { margin: 0 0 8px; }
.waiting { color: var(--dim); display: flex; align-items: center; gap: 8px; }
.spinner { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--line); border-top-color: var(--gold); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.msg { min-height: 1.4em; margin: 10px 0 0; color: var(--bad); font-size: 14px; }
.msg.ok { color: var(--good); }
.best { margin: 4px 0 0; font-size: 13px; color: var(--dim); }
.best b { color: var(--text); }

#board { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
#board li { display: grid; grid-template-columns: 36px 1fr auto auto; gap: 10px; align-items: center; padding: 10px 12px; border-radius: 14px; background: rgba(255, 255, 255, .04); border: 1px solid transparent; font-variant-numeric: tabular-nums; animation: rise .35s backwards; }
#board li:nth-child(1) { background: linear-gradient(90deg, rgba(255, 194, 51, .22), rgba(255, 194, 51, .04)); border-color: rgba(255, 194, 51, .4); }
#board li.me { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(55, 224, 255, .12); }
#board .pos { font-weight: 800; text-align: center; color: var(--dim); }
#board li:nth-child(-n+3) .pos { font-size: 20px; }
#board .who { font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#board .meta { color: var(--dim); font-size: 12px; }
#board .pts { font-weight: 800; color: var(--gold); }
.empty { color: var(--dim); text-align: center; margin: 8px 0; }
.steps { margin: 0; padding-left: 20px; color: var(--dim); display: grid; gap: 6px; }
.steps b { color: var(--text); }
details { margin-top: 12px; color: var(--dim); font-size: 14px; }
summary { cursor: pointer; color: var(--cyan); font-weight: 700; }

/* ---- game ---- */
.hud { display: flex; align-items: stretch; gap: 8px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 6px 12px; min-width: 62px; }
.stat.grow { flex: 1; }
.stat span { display: block; font-size: 10px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--dim); }
.stat b { font-size: 22px; font-weight: 900; font-variant-numeric: tabular-nums; }
#hud-score { color: var(--gold); }
#hud-score.bump, #hud-level.bump { animation: bump .35s; display: inline-block; }
.pips { display: flex; gap: 4px; height: 26px; align-items: center; }
.pips i { width: 10px; height: 18px; border-radius: 4px; background: rgba(255, 255, 255, .1); transition: background .2s, transform .2s, box-shadow .2s; }
.pips i.on { background: linear-gradient(180deg, var(--cyan), #5b7cff); box-shadow: 0 0 10px rgba(55, 224, 255, .8); transform: scaleY(1.2); }
.pips.max i.on { background: linear-gradient(180deg, var(--gold), var(--pink)); box-shadow: 0 0 12px rgba(255, 120, 80, .9); animation: flame .5s ease-in-out infinite alternate; }
@keyframes flame { to { transform: scaleY(1.45); } }
.hud .icon { height: auto; align-self: stretch; }
.timebar { height: 8px; margin: 10px 0 0; border-radius: 99px; background: rgba(255, 255, 255, .08); overflow: hidden; }
.timebar i { display: block; height: 100%; width: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--good), var(--cyan)); transition: width .1s linear; }
.timebar.preview i { background: linear-gradient(90deg, var(--gold), var(--pink)); }
.timebar.low i { background: linear-gradient(90deg, var(--bad), var(--pink)); animation: blink .5s steps(2) infinite; }
@keyframes blink { 50% { opacity: .55; } }
#banner { text-align: center; min-height: 26px; margin: 10px 0 8px; font-weight: 800; letter-spacing: 1px; color: var(--gold); }
#stage { position: relative; }
#grid { position: relative; width: 100%; margin: 0 auto; perspective: 1200px; }
#grid.hurry { animation: hurry 1s ease-in-out infinite; }
@keyframes hurry { 50% { filter: drop-shadow(0 0 14px rgba(255, 92, 108, .55)); } }
.card { position: absolute; padding: 5px; border: 0; background: none; cursor: pointer; container-type: size; transition: left .6s cubic-bezier(.5, 0, .2, 1), top .6s cubic-bezier(.5, 0, .2, 1); -webkit-tap-highlight-color: transparent; animation: deal .4s cubic-bezier(.2, .9, .3, 1.2) backwards; }
@keyframes deal { from { opacity: 0; transform: translateY(-18px) scale(.7) rotate(-6deg); } }
.inner { display: block; position: relative; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform .38s cubic-bezier(.3, .9, .3, 1.15); }
.card.up .inner { transform: rotateY(180deg); }
.face { position: absolute; inset: 0; border-radius: 16%; display: grid; place-items: center; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.back { background: linear-gradient(145deg, #3a2f8f, #1f1b55 60%, #161341); border: 2px solid rgba(140, 130, 255, .45); box-shadow: inset 0 0 0 4px rgba(255, 255, 255, .04), 0 6px 14px rgba(0, 0, 0, .35); }
.back::after { content: ""; width: 34%; aspect-ratio: 1; border-radius: 28%; border: 3px solid rgba(255, 194, 51, .75); box-shadow: 0 0 14px rgba(255, 194, 51, .45); transform: rotate(45deg); }
.card:hover:not(.up) .back { border-color: var(--cyan); box-shadow: 0 0 18px rgba(55, 224, 255, .5); }
.front { transform: rotateY(180deg); background: linear-gradient(160deg, #ffffff, #dfe4ff); border: 2px solid #fff; font-size: 44px; font-size: 58cqmin; line-height: 1; box-shadow: 0 6px 18px rgba(0, 0, 0, .35); user-select: none; }
.card.done { cursor: default; animation: pop .45s cubic-bezier(.3, 1.7, .5, 1); }
.card.done .front { background: linear-gradient(160deg, #eafff2, #b9f5d2); border-color: var(--good); box-shadow: 0 0 22px rgba(61, 220, 132, .55); }
@keyframes pop { 45% { transform: scale(1.14); } }
.card.miss { animation: shake .4s; }
.card.miss .front { background: linear-gradient(160deg, #fff0f1, #ffc9cf); border-color: var(--bad); }
@keyframes shake { 20%, 60% { transform: translateX(-7%); } 40%, 80% { transform: translateX(7%); } }
.card.moving { z-index: 3; }
.card.moving .back { border-color: var(--gold); box-shadow: 0 0 24px rgba(255, 194, 51, .8); }
#grid.locked .card { cursor: default; }
#grid.locked .card:hover:not(.up) .back { border-color: rgba(140, 130, 255, .45); box-shadow: inset 0 0 0 4px rgba(255, 255, 255, .04), 0 6px 14px rgba(0, 0, 0, .35); }
.float { position: absolute; z-index: 5; pointer-events: none; font-weight: 900; font-size: 22px; color: var(--gold); text-shadow: 0 2px 10px rgba(0, 0, 0, .7); transform: translate(-50%, -50%); animation: floatup .9s ease-out forwards; white-space: nowrap; }
.float.neg { color: var(--bad); }
@keyframes floatup { to { transform: translate(-50%, -190%); opacity: 0; } }
#overlay { position: absolute; inset: -6px; z-index: 6; display: grid; place-items: center; text-align: center; border-radius: 22px; background: rgba(10, 11, 23, .82); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); animation: fade .25s; min-height: 220px; }
@keyframes fade { from { opacity: 0; } }
#overlay .ov-kicker { font-size: 12px; letter-spacing: 4px; text-transform: uppercase; color: var(--cyan); }
#overlay .ov-title { font-size: clamp(40px, 12vw, 72px); font-weight: 900; line-height: 1.05; background: linear-gradient(180deg, #fff, var(--gold)); -webkit-background-clip: text; background-clip: text; color: transparent; animation: zoom .5s cubic-bezier(.2, 1.5, .4, 1); }
@keyframes zoom { from { transform: scale(.5); opacity: 0; } }
#overlay .ov-tags { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-top: 10px; }
#overlay .ov-tags span { padding: 5px 12px; border-radius: 99px; background: rgba(255, 255, 255, .08); border: 1px solid var(--line); font-size: 13px; }
#overlay .ov-tags span.hot { border-color: var(--pink); color: #ffd0e6; }
#overlay .ov-lines { margin-top: 10px; display: grid; gap: 2px; font-weight: 700; font-variant-numeric: tabular-nums; }
#overlay .ov-lines b { color: var(--gold); }
.fine { color: var(--dim); font-size: 12px; margin: 14px 0 0; text-align: center; }

/* ---- result ---- */
.result { text-align: center; padding: 26px 18px; }
.badge { display: inline-block; padding: 6px 14px; border-radius: 99px; font-size: 12px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; background: rgba(255, 255, 255, .08); border: 1px solid var(--line); margin-bottom: 8px; }
.badge.win { background: linear-gradient(135deg, var(--gold), var(--gold2)); color: #2a1600; border-color: transparent; box-shadow: 0 0 30px rgba(255, 170, 40, .7); }
.rank { font-size: 17px; font-weight: 700; margin: 4px 0; min-height: 1.4em; }
.rank b { color: var(--gold); }
.sub { color: var(--dim); font-size: 13px; margin: 0; }
.actions { display: grid; gap: 10px; margin-top: 16px; }

@media (max-width: 520px) {
  .modes { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 5px 9px; min-width: 0; }
  .stat b { font-size: 19px; }
  .card { padding: 3px; }
  .logo { font-size: 17px; letter-spacing: 3px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .inner { transition-duration: .01ms; }
}
#stage { min-height: 220px; }

/* ---- capture shield ---- */
#grid, .card, .face { -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
#grid.shield .front { visibility: hidden; }
#grid.shield .card:not(.done) .inner { transform: none; }
#shield-note { position: absolute; inset: 0; z-index: 7; display: grid; place-items: center; text-align: center; padding: 20px; border-radius: 22px;
  background: rgba(10, 11, 23, .92); color: var(--gold); font-weight: 800; }
@media print { body * { display: none !important; } body::after { content: "Memory Sats boards cannot be printed."; } }

/* ---- invoice ---- */
.qr { display: block; width: min(240px, 70%); margin: 4px auto 12px; padding: 12px; border-radius: 16px; background: #fff; box-shadow: 0 0 30px rgba(255, 194, 51, .35); }
.qr svg { display: block; width: 100%; height: auto; }
.addr-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.addr-row code { flex: 1; padding: 10px; border-radius: 10px; background: rgba(255, 255, 255, .06); color: var(--text); font-size: 13px; }
.fine.left { text-align: left; margin-top: 8px; }