/* ==========================================================================
   Gin Rummy — game shell styles
   Scoped with .grm-* 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 {
  /* Card-room palette: deep emerald felt, warm brass accents. */
  --grm-bg-0:        #071a12;
  --grm-bg-1:        #0d2a1c;
  --grm-bg-2:        #123c28;
  --grm-felt:        #164a30;
  --grm-gold:        #e8c468;
  --grm-gold-soft:   #f3dd9e;
  --grm-mint:        #5fd6a8;
  --grm-red:         #ff6b6b;
  --grm-ink:         #f3f8f4;
  --grm-ink-dim:     #b9ccc0;
  --grm-panel:       rgba(7, 26, 18, 0.92);
  --grm-panel-line:  rgba(232, 196, 104, 0.22);
  --grm-chip:        rgba(4, 14, 10, 0.6);

  /* 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. */
  --grm-card-bg:     #fbf8ef;
  --grm-card-black:  #1c2420;
  --grm-card-red:    #b91c3a;

  /* Card geometry — one source of truth, everything else derives from
     these via calc(), never a %-of-self trick. */
  --grm-card-w:      clamp(38px, 10.4vw, 64px);
  --grm-card-h:      calc(var(--grm-card-w) * 1.4);
  --grm-card-w-sm:   clamp(22px, 6vw, 38px);
  --grm-card-h-sm:   calc(var(--grm-card-w-sm) * 1.4);
  --grm-overlap:     calc(var(--grm-card-w) * 0.56);
  --grm-overlap-sm:  calc(var(--grm-card-w-sm) * 0.5);

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

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

/* --------------------------------------------------------------------------
   Shared site header — visible on the menu/help, hidden during play.
   -------------------------------------------------------------------------- */
.grm-site-header {
  position: relative;
  z-index: 40;
  font-size: 13px;
}
.grm-site-header header {
  padding: 10px calc(16px + var(--grm-safe-r)) 10px calc(16px + var(--grm-safe-l));
  padding-top: calc(10px + var(--grm-safe-t));
  background: rgba(5, 16, 11, .78);
  border-bottom: 1px solid var(--grm-panel-line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.grm-site-header a { color: var(--grm-ink-dim); text-decoration: none; padding: 5px 9px; border-radius: 8px; }
.grm-site-header a:hover { color: var(--grm-ink); background: rgba(255,255,255,.07); }
.grm-site-header a.active { color: var(--grm-gold); background: rgba(232,196,104,.14); }

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

.grm-root {
  position: relative;
  min-height: 100vh;
  background:
    radial-gradient(60vw 60vw at 15% -10%, rgba(95, 214, 168, .12), transparent 60%),
    radial-gradient(70vw 70vw at 110% 10%, rgba(232, 196, 104, .08), transparent 60%),
    linear-gradient(180deg, var(--grm-bg-1), var(--grm-bg-0) 60%);
}
.grm-root.is-playing { height: 100vh; overflow: hidden; }

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

.grm-panel {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--grm-panel);
  border: 1px solid var(--grm-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;
}
.grm-panel-narrow { max-width: 340px; }
.grm-panel-wide { max-width: 760px; text-align: left; }

.grm-logo {
  margin: 6px 0 4px;
  font-size: 38px;
  font-weight: 800;
  letter-spacing: .3px;
  background: linear-gradient(135deg, var(--grm-mint), var(--grm-gold) 60%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.grm-menu-glyphs { font-size: 26px; letter-spacing: 10px; margin-bottom: 4px; filter: drop-shadow(0 2px 8px rgba(0,0,0,.4)); }
.grm-menu-glyphs .grm-red { color: var(--grm-red); }
.grm-tagline { color: var(--grm-ink-dim); margin: 0 0 18px; font-size: 14px; }
.grm-muted { color: var(--grm-ink-dim); }

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

.grm-actions { display: flex; flex-direction: column; gap: 10px; margin: 18px 0 8px; }
.grm-actions-secondary { margin-top: 4px; }
.grm-btn {
  appearance: none; border: none; cursor: pointer;
  padding: 14px 20px; border-radius: 14px; font-size: 16px; font-weight: 700;
  font-family: inherit; color: var(--grm-ink);
  transition: transform .12s ease, filter .12s ease, opacity .12s ease;
}
.grm-btn:active { transform: scale(.97); }
.grm-btn-primary { background: linear-gradient(135deg, var(--grm-mint), #1f9d6f); box-shadow: 0 10px 24px rgba(95,214,168,.3); color: #062015; }
.grm-btn-primary:hover { filter: brightness(1.08); }
.grm-btn-primary:disabled { opacity: .4; cursor: not-allowed; box-shadow: none; filter: none; }
.grm-btn-cash { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); color: var(--grm-ink-dim); }
.grm-btn-cash.is-disabled, .grm-btn-cash:disabled { opacity: .55; cursor: not-allowed; }
.grm-btn-ghost { background: rgba(255,255,255,.05); border: 1px solid var(--grm-panel-line); color: var(--grm-ink); }
.grm-btn-ghost:hover { background: rgba(255,255,255,.09); }
.grm-btn-ghost:disabled { opacity: .4; cursor: not-allowed; }

.grm-record-strip {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
  margin: 14px 0 6px;
}
.grm-record-item {
  padding: 10px 8px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(95,214,168,.12), rgba(232,196,104,.06));
  border: 1px solid rgba(95,214,168,.22);
  display: flex; flex-direction: column; gap: 2px;
}
.grm-record-label { font-size: 10px; text-transform: uppercase; letter-spacing: .06em; color: var(--grm-gold-soft); }
.grm-record-value { font-size: 17px; font-weight: 800; color: var(--grm-ink); font-variant-numeric: tabular-nums; }

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

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

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

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

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

.grm-play {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: calc(10px + var(--grm-safe-t)) calc(10px + var(--grm-safe-r)) calc(14px + var(--grm-safe-b)) calc(10px + var(--grm-safe-l));
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  overflow-y: auto;
  box-sizing: border-box;
}

.grm-topbar { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.grm-chip {
  display: flex; align-items: baseline; gap: 6px; padding: 7px 11px;
  border-radius: 12px; background: var(--grm-chip); border: 1px solid var(--grm-panel-line);
}
.grm-chip-label { font-size: 10px; text-transform: uppercase; letter-spacing: .06em; color: var(--grm-ink-dim); }
.grm-chip-value { font-size: 15px; font-weight: 800; font-variant-numeric: tabular-nums; }
.grm-chip-target { opacity: .8; }

.grm-topbar-right { display: flex; gap: 6px; margin-left: auto; }
.grm-icon-btn {
  width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--grm-panel-line);
  background: var(--grm-chip); color: var(--grm-ink); font-size: 15px; cursor: pointer;
}
.grm-icon-btn:active { transform: scale(.94); }
.grm-icon-btn:disabled { opacity: .4; cursor: not-allowed; }

.grm-status {
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--grm-gold-soft);
  min-height: 18px;
  padding: 2px 4px;
}

/* Opponent's face-down hand — a compact fanned row, count implied by the
   number of card backs actually rendered. */
.grm-opponent-row {
  display: flex;
  justify-content: center;
  min-height: calc(var(--grm-card-h-sm) + 6px);
}
.grm-opponent-hand {
  display: flex;
  padding-left: var(--grm-overlap-sm);
}
.grm-opponent-hand .grm-card-back-sm {
  width: var(--grm-card-w-sm);
  height: var(--grm-card-h-sm);
  margin-left: calc(-1 * var(--grm-overlap-sm));
  border-radius: 5px;
  background: repeating-linear-gradient(135deg, #1f5c3c, #1f5c3c 4px, #164a30 4px, #164a30 8px);
  border: 1px solid rgba(232,196,104,.35);
  box-shadow: 0 2px 4px rgba(0,0,0,.35);
}

/* Stock + discard table. */
.grm-table {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(16px, 6vw, 40px);
  padding: 6px 0;
}
.grm-pile {
  position: relative;
  width: var(--grm-card-w);
  height: var(--grm-card-h);
  appearance: none;
  border: none;
  background: transparent;
  padding: 0;
  cursor: pointer;
  color: inherit;
  font-family: inherit;
}
.grm-pile:disabled { cursor: default; }
.grm-pile-stock .grm-card-back {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  background: repeating-linear-gradient(135deg, #1f5c3c, #1f5c3c 5px, #164a30 5px, #164a30 10px);
  border: 1.5px solid rgba(232,196,104,.4);
  box-shadow: 0 3px 8px rgba(0,0,0,.4);
}
.grm-pile-stock:not(:disabled):active .grm-card-back { transform: translateY(2px); }
.grm-pile-count {
  position: absolute;
  bottom: -20px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 11px;
  color: var(--grm-ink-dim);
  font-variant-numeric: tabular-nums;
}
.grm-pile-empty-outline {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  border: 1.5px dashed rgba(255,255,255,.22);
  background: rgba(255,255,255,.03);
}
.grm-pile-discard:disabled .grm-pile-empty-outline,
.grm-pile-discard:disabled .grm-card {
  opacity: .55;
}

.grm-hand-wrap {
  flex: 0 0 auto;
  overflow-x: auto;
  overflow-y: visible;
  padding: 10px 4px 6px;
}
.grm-hand {
  display: flex;
  justify-content: center;
  width: max-content;
  min-width: 100%;
  padding-left: var(--grm-overlap);
}

.grm-deadwood-readout {
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--grm-ink-dim);
  min-height: 18px;
}
.grm-deadwood-readout[hidden] { display: none; }
.grm-deadwood-readout.is-knockable { color: var(--grm-mint); }
.grm-deadwood-readout.is-gin { color: var(--grm-gold); }

.grm-actions-play { flex-direction: row; justify-content: center; gap: 12px; margin: 6px 0 4px; }
.grm-actions-play .grm-btn { flex: 0 1 160px; padding: 12px 18px; font-size: 15px; }

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.grm-card {
  position: relative;
  width: var(--grm-card-w);
  height: var(--grm-card-h);
  margin-left: calc(-1 * var(--grm-overlap));
  border-radius: 7px;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease;
  box-shadow: 0 2px 4px rgba(0,0,0,.35);
  flex: 0 0 auto;
}
.grm-card:first-child { margin-left: 0; }
.grm-card-face {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 7px;
  background: var(--grm-card-bg);
  border: 1px solid rgba(0,0,0,.15);
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.grm-card[data-color="red"] .grm-card-rank,
.grm-card[data-color="red"] .grm-card-suit,
.grm-card[data-color="red"] .grm-card-pip { color: var(--grm-card-red); }
.grm-card[data-color="black"] .grm-card-rank,
.grm-card[data-color="black"] .grm-card-suit,
.grm-card[data-color="black"] .grm-card-pip { color: var(--grm-card-black); }

.grm-card-corner {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
  font-weight: 800;
}
.grm-card-corner-tl { top: 3%; left: 8%; }
.grm-card-corner-br { bottom: 3%; right: 8%; transform: rotate(180deg); }
.grm-card-rank { font-size: calc(var(--grm-card-w) * 0.24); }
.grm-card-suit { font-size: calc(var(--grm-card-w) * 0.2); }
.grm-card-pip { font-size: calc(var(--grm-card-w) * 0.46); opacity: .9; }

.grm-card.is-selected { transform: translateY(calc(var(--grm-card-h) * -0.22)); z-index: 50; }
.grm-card.is-selected .grm-card-face { box-shadow: 0 0 0 3px var(--grm-gold), 0 8px 18px rgba(0,0,0,.4); }

.grm-card.is-melded .grm-card-face { box-shadow: 0 0 0 2px rgba(95,214,168,.55); }
.grm-card.is-selected.is-melded .grm-card-face { box-shadow: 0 0 0 3px var(--grm-gold), 0 8px 18px rgba(0,0,0,.4); }

/* --------------------------------------------------------------------------
   Hand result screen
   -------------------------------------------------------------------------- */
.grm-hr-cols { display: grid; grid-template-columns: 1fr; gap: 20px; margin: 6px 0 14px; }
@media (min-width: 640px) {
  .grm-hr-cols { grid-template-columns: 1fr 1fr; }
}
.grm-hr-side { padding: 12px; border-radius: 14px; background: rgba(255,255,255,.03); border: 1px solid var(--grm-panel-line); }
.grm-hr-melds { display: flex; flex-direction: column; gap: 8px; margin-bottom: 8px; }
.grm-hr-meld-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.grm-hr-meld-label { font-size: 10px; text-transform: uppercase; letter-spacing: .05em; color: var(--grm-ink-dim); width: 34px; flex: 0 0 34px; }
.grm-hr-mini-cards { display: flex; }
.grm-hr-deadwood { font-size: 12px; color: var(--grm-ink-dim); margin: 4px 0 0; }
.grm-hr-deadwood b { color: var(--grm-ink); }

.grm-mini-card {
  width: var(--grm-card-w-sm);
  height: var(--grm-card-h-sm);
  margin-left: calc(-1 * var(--grm-overlap-sm));
  border-radius: 5px;
  background: var(--grm-card-bg);
  border: 1px solid rgba(0,0,0,.15);
  box-shadow: 0 1px 3px rgba(0,0,0,.35);
  display: flex; align-items: center; justify-content: center;
  font-size: calc(var(--grm-card-w-sm) * 0.4);
  font-weight: 800;
  line-height: 1;
}
.grm-mini-card:first-child { margin-left: 0; }
.grm-mini-card.grm-red { color: var(--grm-card-red); }
.grm-mini-card.grm-black { color: var(--grm-card-black); }
.grm-mini-card.is-layoff { outline: 2px dashed var(--grm-mint); outline-offset: 1px; }

.grm-hr-score {
  text-align: center;
  font-size: 17px;
  font-weight: 800;
  color: var(--grm-gold-soft);
  padding: 10px;
  border-radius: 12px;
  background: rgba(232,196,104,.08);
  border: 1px solid rgba(232,196,104,.22);
  margin-bottom: 4px;
}

/* --------------------------------------------------------------------------
   Match end celebration
   -------------------------------------------------------------------------- */
#screen-matchend.grm-screen {
  background: radial-gradient(circle at 50% 40%, rgba(95,214,168,.2), rgba(7,26,18,.96) 65%);
}
.grm-win-celebrate { text-align: center; max-width: 380px; }
.grm-win-glyphs { font-size: 36px; letter-spacing: 10px; margin-bottom: 6px; animation: grm-glyph-bounce 1s ease-in-out infinite; }
.grm-win-glyphs .grm-red { color: var(--grm-red); }
@keyframes grm-glyph-bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.grm-win-title {
  font-size: clamp(30px, 8vw, 48px); font-weight: 900; margin: 0;
  background: linear-gradient(135deg, var(--grm-gold), #fff 50%, var(--grm-mint));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: grm-shimmer 1.4s linear infinite;
  background-size: 200% auto;
}
@keyframes grm-shimmer { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }

.grm-win-stats { display: flex; justify-content: center; gap: 20px; margin: 18px 0 6px; }
.grm-stat { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.grm-stat-label { font-size: 11px; color: var(--grm-ink-dim); text-transform: uppercase; letter-spacing: .05em; }
.grm-stat-value { font-size: 20px; font-weight: 800; color: var(--grm-gold-soft); font-variant-numeric: tabular-nums; }

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

@media (min-width: 480px) {
  .grm-record-strip { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 720px) {
  .grm-record-strip { grid-template-columns: repeat(6, 1fr); }
}