/* ==========================================================================
   Egyptian Ratscrew — game shell styles
   Scoped with .ers-* so the shared site stylesheet can't leak in and we
   can't leak out. Mobile-first, single file, no image assets — every
   visual is CSS (gradients, shadows, borders) plus text/emoji glyphs.
   ========================================================================== */

:root {
  /* Deep felt-table palette with a warm gold accent. */
  --ers-bg-0:        #071f1a;
  --ers-bg-1:        #0e2f28;
  --ers-bg-2:        #164039;
  --ers-felt:        #1c5c4e;
  --ers-gold:        #ffd23f;
  --ers-gold-soft:   #ffe9a3;
  --ers-mint:        #4ce0b3;
  --ers-red:         #ff5d6c;
  --ers-ink:         #f4fbf7;
  --ers-ink-dim:     #b9d8cd;
  --ers-panel:       rgba(7, 31, 26, 0.92);
  --ers-panel-line:  rgba(255, 210, 63, 0.22);
  --ers-chip:        rgba(4, 16, 13, 0.6);
  --ers-cell:        rgba(255, 255, 255, 0.06);

  /* Playing-card faces are always cream/white, independent of the felt
     theme above — that's the one deliberately "unthemed" part, same as a
     real deck. */
  --ers-card-bg:      #fbf8ef;
  --ers-card-black:   #1c2420;
  --ers-card-red:     #c81e3a;
  --ers-card-back-a:  #1c5c4e;
  --ers-card-back-b:  #0e2f28;

  /* Card geometry — one source of truth, everything else (corner sizes,
     the fan offsets) derives from these via calc(), never a
     percent-of-own-width trick. */
  --ers-card-w:       clamp(46px, 13vw, 78px);
  --ers-card-h:       calc(var(--ers-card-w) * 1.4);
  --ers-back-w:       clamp(28px, 7vw, 44px);
  --ers-back-h:       calc(var(--ers-back-w) * 1.4);
  --ers-back-offset:  calc(var(--ers-back-w) * 0.3);

  --ers-radius:       16px;
  --ers-font:         'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  --ers-safe-t:       env(safe-area-inset-top, 0px);
  --ers-safe-b:       env(safe-area-inset-bottom, 0px);
  --ers-safe-l:       env(safe-area-inset-left, 0px);
  --ers-safe-r:       env(safe-area-inset-right, 0px);
}

html, body.ers-body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--ers-bg-0);
  color: var(--ers-ink);
  font-family: var(--ers-font);
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

.ers-red { color: var(--ers-red); }

/* --------------------------------------------------------------------------
   Shared site header — visible on the menu/help, hidden during play.
   -------------------------------------------------------------------------- */
.ers-site-header {
  position: relative;
  z-index: 40;
  font-size: 13px;
}
.ers-site-header header {
  padding: 10px calc(16px + var(--ers-safe-r)) 10px calc(16px + var(--ers-safe-l));
  padding-top: calc(10px + var(--ers-safe-t));
  background: rgba(4, 16, 13, .78);
  border-bottom: 1px solid var(--ers-panel-line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.ers-site-header a { color: var(--ers-ink-dim); text-decoration: none; padding: 5px 9px; border-radius: 8px; }
.ers-site-header a:hover { color: var(--ers-ink); background: rgba(255,255,255,.07); }
.ers-site-header a.active { color: var(--ers-gold); background: rgba(255,210,63,.14); }

body:has(.ers-root.is-playing) .ers-site-header,
body:has(.ers-root.is-playing) #footer { display: none; }

.ers-root {
  position: relative;
  min-height: 100vh;
  background:
    radial-gradient(60vw 60vw at 15% -10%, rgba(76, 224, 179, .12), transparent 60%),
    radial-gradient(70vw 70vw at 110% 10%, rgba(255, 210, 63, .1), transparent 60%),
    linear-gradient(180deg, var(--ers-bg-1), var(--ers-bg-0) 60%);
}
.ers-root.is-playing { height: 100vh; overflow: hidden; }

/* --------------------------------------------------------------------------
   Generic dialog-style screens (loading / menu / help / round-over)
   -------------------------------------------------------------------------- */
.ers-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(20px + var(--ers-safe-t)) calc(16px + var(--ers-safe-r)) calc(20px + var(--ers-safe-b)) calc(16px + var(--ers-safe-l));
  opacity: 0;
  transform: scale(.98);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
  z-index: 20;
  overflow-y: auto;
}
.ers-screen.is-open { opacity: 1; transform: none; pointer-events: auto; z-index: 30; }

.ers-panel {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--ers-panel);
  border: 1px solid var(--ers-panel-line);
  border-radius: 22px;
  padding: 28px 24px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.02) inset;
}
.ers-panel-narrow { max-width: 340px; }
.ers-panel-wide { max-width: 720px; text-align: left; }

.ers-logo {
  margin: 6px 0 4px;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: .2px;
  background: linear-gradient(135deg, var(--ers-gold), var(--ers-mint) 65%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ers-menu-glyphs { font-size: 26px; letter-spacing: 10px; margin-bottom: 4px; filter: drop-shadow(0 2px 8px rgba(0,0,0,.4)); }
.ers-tagline { color: var(--ers-ink-dim); margin: 0 0 18px; font-size: 14px; font-style: italic; }
.ers-muted { color: var(--ers-ink-dim); }

.ers-progress { width: 100%; height: 8px; border-radius: 8px; background: rgba(255,255,255,.08); overflow: hidden; margin-top: 18px; }
.ers-progress-bar { height: 100%; width: 40%; background: linear-gradient(90deg, var(--ers-mint), var(--ers-gold)); border-radius: 8px; animation: ers-load 1.1s ease-in-out infinite; }
@keyframes ers-load { 0% { transform: translateX(-100%); } 100% { transform: translateX(250%); } }

.ers-actions { display: flex; flex-direction: column; gap: 10px; margin: 18px 0 8px; }
.ers-actions-secondary { margin-top: 4px; }
.ers-btn {
  appearance: none; border: none; cursor: pointer;
  padding: 14px 20px; border-radius: 14px; font-size: 16px; font-weight: 700;
  font-family: inherit; color: var(--ers-ink);
  transition: transform .12s ease, filter .12s ease, opacity .12s ease;
}
.ers-btn:active { transform: scale(.97); }
.ers-btn-primary { background: linear-gradient(135deg, var(--ers-gold), #ffb23f); box-shadow: 0 10px 24px rgba(255,210,63,.3); color: #2a1400; }
.ers-btn-primary:hover { filter: brightness(1.08); }
.ers-btn-cash { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); color: var(--ers-ink-dim); }
.ers-btn-cash.is-disabled, .ers-btn-cash:disabled { opacity: .55; cursor: not-allowed; }
.ers-btn-ghost { background: rgba(255,255,255,.05); border: 1px solid var(--ers-panel-line); color: var(--ers-ink); }
.ers-btn-ghost:hover { background: rgba(255,255,255,.09); }
.ers-btn-danger { background: rgba(255,93,108,.12); border: 1px solid rgba(255,93,108,.4); color: var(--ers-red); }
.ers-btn-danger:hover { background: rgba(255,93,108,.2); }

.ers-record-strip {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
  margin: 14px 0 6px;
}
.ers-record-item {
  padding: 10px 8px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(255,210,63,.1), rgba(76,224,179,.08));
  border: 1px solid rgba(255,210,63,.22);
  display: flex; flex-direction: column; gap: 2px;
}
.ers-record-label { font-size: 10px; text-transform: uppercase; letter-spacing: .06em; color: var(--ers-gold-soft); }
.ers-record-value { font-size: 16px; font-weight: 800; color: var(--ers-ink); font-variant-numeric: tabular-nums; }

.ers-fineprint { margin-top: 14px; font-size: 11px; color: var(--ers-ink-dim); opacity: .8; line-height: 1.5; }
.ers-version::before { content: 'v' attr(data-v); }

.ers-close {
  position: absolute; top: 14px; right: 14px; width: 34px; height: 34px;
  border-radius: 50%; border: 1px solid var(--ers-panel-line); background: rgba(255,255,255,.06);
  color: var(--ers-ink); font-size: 20px; line-height: 1; cursor: pointer;
}

.ers-h2 { margin: 0 0 14px; font-size: 22px; font-weight: 800; color: var(--ers-ink); }
.ers-h3 { margin: 18px 0 8px; font-size: 15px; color: var(--ers-gold-soft); text-transform: uppercase; letter-spacing: .06em; }
.ers-h3:first-child { margin-top: 0; }
.ers-body { font-size: 14px; line-height: 1.6; color: var(--ers-ink-dim); margin: 0 0 10px; }
.ers-list { margin: 0; padding-left: 18px; color: var(--ers-ink-dim); font-size: 14px; line-height: 1.7; }
.ers-list b { color: var(--ers-ink); }

.ers-help-cols { display: grid; grid-template-columns: 1fr; gap: 22px; }
@media (min-width: 720px) {
  .ers-help-cols { grid-template-columns: 1fr 1fr; }
}

/* --------------------------------------------------------------------------
   Play screen
   -------------------------------------------------------------------------- */
#screen-play.ers-screen {
  align-items: stretch;
  justify-content: stretch;
  padding: 0;
  display: none;
  background: transparent;
}
#screen-play.ers-screen.is-open { display: flex; opacity: 1; transform: none; }

.ers-play {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: calc(10px + var(--ers-safe-t)) calc(12px + var(--ers-safe-r)) calc(14px + var(--ers-safe-b)) calc(12px + var(--ers-safe-l));
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
  overflow-y: auto;
  box-sizing: border-box;
}

.ers-topbar { display: flex; align-items: center; gap: 8px; }
.ers-chip {
  display: flex; align-items: baseline; gap: 6px; padding: 7px 12px;
  border-radius: 12px; background: var(--ers-chip); border: 1px solid var(--ers-panel-line);
}
.ers-chip-label { font-size: 10px; text-transform: uppercase; letter-spacing: .06em; color: var(--ers-ink-dim); }
.ers-chip-value { font-size: 15px; font-weight: 800; font-variant-numeric: tabular-nums; }

.ers-topbar-right { display: flex; gap: 6px; margin-left: auto; }
.ers-icon-btn {
  width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--ers-panel-line);
  background: var(--ers-chip); color: var(--ers-ink); font-size: 15px; cursor: pointer;
}
.ers-icon-btn:active { transform: scale(.94); }

/* --------------------------------------------------------------------------
   The table
   -------------------------------------------------------------------------- */
.ers-table {
  position: relative;
  border-radius: 18px;
  padding: 14px 10px 18px;
  background: radial-gradient(120% 100% at 50% 0%, var(--ers-felt), var(--ers-bg-2) 70%);
  border: 1px solid var(--ers-panel-line);
  box-shadow: inset 0 0 40px rgba(0,0,0,.35);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.ers-opp { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.ers-opp-avatar {
  width: 40px;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  background: rgba(255,255,255,.08);
  border: 1px solid var(--ers-panel-line);
}
.ers-opp-name { font-size: 12px; font-weight: 700; color: var(--ers-ink); }

.ers-opp-fan, .ers-you-fan {
  position: relative;
  width: calc(var(--ers-back-w) + 7 * var(--ers-back-offset));
  height: var(--ers-back-h);
  max-width: 100%;
}
.ers-cardback {
  position: absolute;
  top: 0;
  left: calc(var(--i, 0) * var(--ers-back-offset));
  width: var(--ers-back-w);
  height: var(--ers-back-h);
  border-radius: 5px;
  background: repeating-linear-gradient(135deg, var(--ers-card-back-a) 0 5px, var(--ers-card-back-b) 5px 10px);
  border: 1px solid rgba(0,0,0,.35);
  box-shadow: 0 2px 4px rgba(0,0,0,.35);
}

.ers-challenge-banner {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 7px 14px; border-radius: 12px; font-size: 13px; font-weight: 700;
  background: linear-gradient(90deg, rgba(255,210,63,.2), rgba(255,93,108,.16));
  border: 1px solid rgba(255,210,63,.4); color: var(--ers-gold-soft);
  animation: ers-pulse-glow 1.6s ease-in-out infinite;
}
.ers-challenge-banner[hidden] { display: none; }
@keyframes ers-pulse-glow { 0%, 100% { box-shadow: 0 0 0 rgba(255,210,63,0); } 50% { box-shadow: 0 0 16px rgba(255,210,63,.4); } }
.ers-challenge-glyph {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: 7px;
  background: var(--ers-card-bg); color: var(--ers-card-black);
  font-size: 15px; font-weight: 900;
}

.ers-pile-area { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.ers-pile {
  position: relative;
  width: var(--ers-card-w);
  height: var(--ers-card-h);
  margin: 6px 0;
}
.ers-pile-count { font-size: 11px; color: var(--ers-ink-dim); font-variant-numeric: tabular-nums; }

.ers-status {
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--ers-gold-soft);
  min-height: 1.4em;
}

/* --------------------------------------------------------------------------
   The SLAP button + its countdown
   -------------------------------------------------------------------------- */
.ers-slap-wrap { display: flex; justify-content: center; min-height: 56px; align-items: center; }
.ers-slap-btn {
  position: relative;
  overflow: hidden;
  appearance: none; border: none; cursor: pointer;
  padding: 14px 46px; border-radius: 999px;
  font-size: 20px; font-weight: 900; letter-spacing: .06em;
  color: #2a0400;
  background: linear-gradient(135deg, var(--ers-red), #ff8a3d);
  box-shadow: 0 10px 26px rgba(255,93,108,.45);
  transition: transform .1s ease;
}
.ers-slap-btn[hidden] { display: none; }
.ers-slap-btn.is-live { animation: ers-slap-pop .35s ease; }
.ers-slap-btn:active { transform: scale(.94); }
@keyframes ers-slap-pop { from { transform: scale(.7); opacity: 0; } to { transform: none; opacity: 1; } }

.ers-slap-timer {
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 5px;
  background: rgba(0,0,0,.4);
  transform-origin: left center;
  transform: scaleX(1);
}
.ers-slap-timer.is-counting {
  animation: ers-slap-countdown var(--ers-slap-dur, 2500ms) linear forwards;
}
@keyframes ers-slap-countdown { from { transform: scaleX(1); } to { transform: scaleX(0); } }

/* --------------------------------------------------------------------------
   Your side + play button
   -------------------------------------------------------------------------- */
.ers-you { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.ers-play-btn {
  appearance: none; border: none; cursor: pointer;
  padding: 14px 36px; border-radius: 14px; font-size: 16px; font-weight: 800; letter-spacing: .03em;
  color: #052018;
  background: linear-gradient(135deg, var(--ers-mint), var(--ers-gold));
  box-shadow: 0 10px 22px rgba(76,224,179,.3);
  transition: transform .1s ease, filter .1s ease, opacity .15s ease;
}
.ers-play-btn:active { transform: scale(.96); }
.ers-play-btn:disabled { opacity: .45; cursor: not-allowed; filter: grayscale(.3); }

/* --------------------------------------------------------------------------
   Cards (pile)
   -------------------------------------------------------------------------- */
.ers-card {
  position: absolute;
  left: 0; top: 0;
  width: var(--ers-card-w);
  height: var(--ers-card-h);
  border-radius: 7px;
  box-shadow: 0 3px 6px rgba(0,0,0,.4);
  transform: translate(calc(var(--ers-depth, 0) * 3px), calc(var(--ers-depth, 0) * -2px)) rotate(var(--ers-rot, 0deg));
  transition: transform .2s ease;
}
.ers-card-top { z-index: 5; box-shadow: 0 6px 14px rgba(0,0,0,.5); }
.ers-card-face {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 7px;
  background: var(--ers-card-bg);
  border: 1px solid rgba(0,0,0,.15);
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.ers-card[data-color="red"] .ers-card-rank,
.ers-card[data-color="red"] .ers-card-suit,
.ers-card[data-color="red"] .ers-card-pip { color: var(--ers-card-red); }
.ers-card[data-color="black"] .ers-card-rank,
.ers-card[data-color="black"] .ers-card-suit,
.ers-card[data-color="black"] .ers-card-pip { color: var(--ers-card-black); }

.ers-card-corner {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
  font-weight: 800;
}
.ers-card-corner-tl { top: 4%; left: 8%; }
.ers-card-corner-br { bottom: 4%; right: 8%; transform: rotate(180deg); }
.ers-card-rank { font-size: calc(var(--ers-card-w) * 0.22); }
.ers-card-suit { font-size: calc(var(--ers-card-w) * 0.18); }
.ers-card-pip { font-size: calc(var(--ers-card-w) * 0.42); opacity: .9; }

/* --------------------------------------------------------------------------
   Event log
   -------------------------------------------------------------------------- */
.ers-log {
  display: flex;
  flex-direction: column;
  gap: 3px;
  max-height: 108px;
  overflow-y: auto;
  font-size: 12px;
  padding: 2px 2px;
}
.ers-log:empty { display: none; }
.ers-log-row {
  padding: 5px 10px;
  border-radius: 8px;
  background: var(--ers-cell);
  color: var(--ers-ink-dim);
}
.ers-log-row:last-child { color: var(--ers-ink); }

/* --------------------------------------------------------------------------
   Round over
   -------------------------------------------------------------------------- */
#screen-round.ers-screen {
  background: radial-gradient(circle at 50% 40%, rgba(255,210,63,.2), rgba(7,31,26,.96) 65%);
}
.ers-result { text-align: center; max-width: 380px; }
.ers-result-title {
  font-size: clamp(30px, 9vw, 46px); font-weight: 900; margin: 0;
  background: linear-gradient(135deg, var(--ers-gold), #fff 50%, var(--ers-mint));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ers-result-sub { color: var(--ers-ink-dim); margin: 8px 0 4px; font-size: 14px; }

.ers-result-stats { display: flex; justify-content: center; gap: 20px; margin: 16px 0 6px; }
.ers-stat { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.ers-stat-label { font-size: 11px; color: var(--ers-ink-dim); text-transform: uppercase; letter-spacing: .05em; }
.ers-stat-value { font-size: 20px; font-weight: 800; color: var(--ers-gold-soft); font-variant-numeric: tabular-nums; }

.ers-result-best {
  margin: 6px 0 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--ers-mint);
}
.ers-result-best[hidden] { display: none; }

@media (min-width: 480px) {
  .ers-record-strip { grid-template-columns: repeat(3, 1fr); }
}