/* =====================================================================
   Set — styled as a warm card-table "salon": emerald felt background,
   ivory cards, brass/gold accents and a rounded display face. Deliberately
   distinct from the dark arcade theme the other games share.

   NOTE: the class/id hooks here are a contract with game.js —
   .card / .selected / .good / .bad / .hint / .dealt, #msg(.good/.bad/.info),
   and the .stat / .btn / overlay structure. Restyle freely, but keep them.
   ===================================================================== */
@import url("https://fonts.googleapis.com/css2?family=Fredoka:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap");

:root {
  --felt-1: #18745a;
  --felt-2: #0e5240;
  --felt-3: #08301f;
  --ivory: #f7f0df;
  --ivory-edge: #e4d8b8;
  --ink: #1d2a24;
  --gold: #e7c067;
  --gold-deep: #c79a3a;
  --emerald: #34c98a;
  --coral: #e8694a;
  --amber: #f3b13c;
  --line: rgba(231, 192, 103, 0.28);
}

html,
body {
  margin: 0;
  color: var(--ivory);
  font-family: "Inter", sans-serif;
  background-color: var(--felt-2);
  /* layered felt: a soft spotlight, a deep vignette, and a faint diamond
     lattice that nods to the game's shapes */
  background-image:
    repeating-linear-gradient(
      60deg,
      rgba(255, 255, 255, 0.018) 0 2px,
      transparent 2px 22px
    ),
    repeating-linear-gradient(
      -60deg,
      rgba(0, 0, 0, 0.05) 0 2px,
      transparent 2px 22px
    ),
    radial-gradient(120% 80% at 50% -10%, var(--felt-1) 0%, var(--felt-2) 48%, var(--felt-3) 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 3.3rem 1rem 1rem;
  box-sizing: border-box;
  min-height: 100vh; /* fallback */
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

/* keep the chrome at its natural height; only the board flexes to fill */
.set-header,
.hud,
#msg,
.controls,
.rules,
#byline {
  flex: 0 0 auto;
}

/* back button — brass plate, top-left */
.back-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 99999;
  font: 700 13px/1 "Fredoka", "Inter", sans-serif;
  letter-spacing: 0.02em;
  color: var(--felt-3);
  /* longhand so getComputedStyle().backgroundColor resolves to a solid color —
     the shared mute / Visual-FX toggles copy that to theme themselves. */
  background-color: var(--gold);
  background-image: linear-gradient(180deg, #f1d98f, var(--gold));
  border: 1px solid var(--gold-deep);
  border-radius: 999px;
  padding: 9px 15px;
  text-decoration: none;
  box-shadow: 0 3px 0 var(--gold-deep), 0 6px 14px rgba(0, 0, 0, 0.35);
  -webkit-tap-highlight-color: transparent;
}
.back-link:hover {
  color: var(--felt-3);
  transform: translateY(1px);
  box-shadow: 0 2px 0 var(--gold-deep), 0 4px 10px rgba(0, 0, 0, 0.35);
}

/* header */
.set-header {
  text-align: center;
  margin-bottom: 0.6rem;
}
.set-title {
  font-family: "Fredoka", "Inter", sans-serif;
  font-weight: 700;
  font-size: 2.1rem;
  line-height: 1;
  letter-spacing: 0.4em;
  margin: 0 0 0.25rem;
  padding-left: 0.4em; /* optical re-center for the tracking */
  color: var(--gold);
  text-shadow: 0 1px 0 var(--gold-deep), 0 2px 0 rgba(0, 0, 0, 0.25),
    0 6px 18px rgba(0, 0, 0, 0.4);
}
.subtitle {
  color: #d8e9df;
  font-size: 0.85rem;
  line-height: 1.3rem;
  max-width: 33rem;
  margin: 0 auto;
}
.subtitle b {
  color: var(--ivory);
}
.subtitle em {
  font-style: normal;
  color: var(--gold);
  font-weight: 600;
}

/* hud — brass-rimmed felt chips */
.hud {
  display: flex;
  justify-content: center;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin: 0.6rem 0;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 66px;
  background: rgba(6, 40, 28, 0.55);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.45rem 0.9rem;
  backdrop-filter: blur(2px);
}
.stat .k {
  font: 600 0.62rem/1 "Fredoka", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--gold);
}
.stat .v {
  margin-top: 0.18rem;
  font-family: "Fredoka", sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--ivory);
  font-variant-numeric: tabular-nums;
}

/* board — flexes to fill the leftover viewport height; it's a size container
   so the cards inside can be sized from its width AND height (no page scroll) */
#board {
  flex: 1 1 0;
  min-height: 0;
  container-type: size;
  display: grid;
  grid-template-columns: repeat(3, auto);
  justify-content: center;
  align-content: center;
  gap: var(--gap);
  --gap: 0.7rem;
  --rows: 4; /* updated live by game.js as cards are dealt/cleared */
}

/* a card — ivory stock with a soft brass edge and bottom bevel */
.card {
  position: relative;
  background: linear-gradient(180deg, #fffaf0, var(--ivory));
  border: 1px solid var(--ivory-edge);
  border-radius: 14px;
  /* Card height is the smaller of: what fits the board's height for the
     current row count, and what keeps the 5:3.2 ratio within the width. */
  --cardH: min(
    calc((100cqh - (var(--rows) - 1) * var(--gap)) / var(--rows)),
    calc((100cqw - 2 * var(--gap)) / 3 * 3.2 / 5)
  );
  width: calc(var(--cardH) * 5 / 3.2);
  height: var(--cardH);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7%;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  box-shadow: 0 2px 0 #cdbf9a, 0 6px 14px rgba(0, 0, 0, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 0 #cdbf9a, 0 12px 22px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}
/* Visual FX off (reduce motion): the FX toggle reports aria-pressed="true".
   Drop the hover lift/shadow so there's genuinely no motion on hover. */
html:has(.rm-toggle[aria-pressed="true"]) .card:hover {
  transform: none;
  box-shadow: 0 2px 0 #cdbf9a, 0 6px 14px rgba(0, 0, 0, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}
.card.selected {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold), 0 0 0 6px rgba(231, 192, 103, 0.3),
    0 8px 18px rgba(0, 0, 0, 0.4);
}
.card.good {
  border-color: var(--emerald);
  box-shadow: 0 0 0 3px var(--emerald), 0 0 22px rgba(52, 201, 138, 0.55);
  animation: pop 0.34s ease;
}
.card.bad {
  border-color: var(--coral);
  box-shadow: 0 0 0 3px var(--coral), 0 0 18px rgba(232, 105, 74, 0.5);
  animation: shake 0.34s ease;
}
.card.hint {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px var(--amber), 0 0 20px rgba(243, 177, 60, 0.6);
  animation: hintPulse 1s ease infinite;
}

.card .sym {
  width: 26%;
  height: auto;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.12));
}

/* claimed cards slide out to the right (through the imaginary right column) */
.card.exit-right {
  animation: exitRight 0.36s cubic-bezier(0.55, 0, 0.85, 0.3) forwards;
  pointer-events: none;
  z-index: 3;
}
@keyframes exitRight {
  from {
    opacity: 1;
    transform: none;
  }
  to {
    opacity: 0;
    transform: translateX(185%) scale(0.82);
  }
}

/* replacements arrive from the left (through the imaginary left column) */
.card.enter-left {
  animation: enterLeft 0.42s cubic-bezier(0.2, 0.8, 0.25, 1);
  z-index: 2;
}
@keyframes enterLeft {
  from {
    opacity: 0;
    transform: translateX(-185%) scale(0.86);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* dealt-in / feedback animations */
.card.dealt {
  animation: dealIn 0.3s ease;
}
@keyframes dealIn {
  from {
    opacity: 0;
    transform: translateY(10px) rotate(-2deg) scale(0.95);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes pop {
  0% {
    transform: scale(1);
  }
  45% {
    transform: scale(1.07);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-6px);
  }
  75% {
    transform: translateX(6px);
  }
}
@keyframes hintPulse {
  0%,
  100% {
    box-shadow: 0 0 0 3px var(--amber), 0 0 14px rgba(243, 177, 60, 0.4);
  }
  50% {
    box-shadow: 0 0 0 3px var(--amber), 0 0 26px rgba(243, 177, 60, 0.85);
  }
}

/* message line */
#msg {
  text-align: center;
  min-height: 1.35rem;
  font-family: "Fredoka", sans-serif;
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.01em;
  margin: 0.55rem 0 0.15rem;
  color: #cfe3d8;
}
#msg.good {
  color: var(--emerald);
}
#msg.bad {
  color: var(--coral);
}
#msg.info {
  color: var(--gold);
}

/* controls — brass primary, ivory secondary */
.controls {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.btn {
  cursor: pointer;
  font: 600 0.92rem "Fredoka", "Inter", sans-serif;
  letter-spacing: 0.01em;
  color: var(--ink);
  background: linear-gradient(180deg, #fffaf0, var(--ivory));
  border: 1px solid var(--ivory-edge);
  border-radius: 999px;
  padding: 0.6rem 1.15rem;
  box-shadow: 0 3px 0 #cdbf9a, 0 5px 12px rgba(0, 0, 0, 0.28);
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
}
.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.03);
  box-shadow: 0 5px 0 #cdbf9a, 0 9px 16px rgba(0, 0, 0, 0.32);
}
.btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 #cdbf9a, 0 2px 6px rgba(0, 0, 0, 0.28);
}
.btn.primary {
  color: var(--felt-3);
  background: linear-gradient(180deg, #f3dc94, var(--gold));
  border-color: var(--gold-deep);
  box-shadow: 0 3px 0 var(--gold-deep), 0 5px 12px rgba(0, 0, 0, 0.3);
}
.btn.primary:hover {
  box-shadow: 0 5px 0 var(--gold-deep), 0 9px 16px rgba(0, 0, 0, 0.34);
}
.btn.primary:active {
  box-shadow: 0 1px 0 var(--gold-deep), 0 2px 6px rgba(0, 0, 0, 0.3);
}
/* Visual FX off: no lift on the control buttons either (match the cards). */
html:has(.rm-toggle[aria-pressed="true"]) .btn:hover {
  transform: none;
  box-shadow: 0 3px 0 #cdbf9a, 0 5px 12px rgba(0, 0, 0, 0.28);
}
html:has(.rm-toggle[aria-pressed="true"]) .btn.primary:hover {
  box-shadow: 0 3px 0 var(--gold-deep), 0 5px 12px rgba(0, 0, 0, 0.3);
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: 0 3px 0 #cdbf9a;
}

/* rules */
.rules {
  margin: 0.9rem auto 0;
  max-width: 35rem;
  background: rgba(6, 40, 28, 0.5);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.4rem 1.2rem;
}
.rules summary {
  cursor: pointer;
  font-family: "Fredoka", sans-serif;
  font-weight: 600;
  color: var(--gold);
  padding: 0.6rem 0;
  list-style: none;
  width: fit-content;
  transition: transform 0.12s ease, filter 0.12s ease;
}
.rules summary:hover {
  transform: translateY(-2px);
  filter: brightness(1.12);
}
/* Visual FX off: keep the summary still on hover too. */
html:has(.rm-toggle[aria-pressed="true"]) .rules summary:hover {
  transform: none;
}
.rules summary::-webkit-details-marker {
  display: none;
}
.rules summary::before {
  content: "♦ ";
}
.rules[open] summary::before {
  content: "♦ ";
  opacity: 0.6;
}
.rules p {
  color: #cfe3d8;
  font-size: 0.9rem;
  line-height: 1.55rem;
}
.rules b {
  color: var(--ivory);
}
.rules em {
  font-style: normal;
  color: var(--gold);
}

#byline {
  color: rgba(216, 233, 223, 0.55);
  font-size: 75%;
  text-align: center;
}

/* overlay */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 24, 16, 0.78);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
  padding: 1rem;
}
.overlay[hidden] {
  display: none;
}
.overlay-card {
  background: linear-gradient(180deg, #0f5240, #0a3a2c);
  border: 1px solid var(--gold);
  border-radius: 18px;
  padding: 1.9rem 1.7rem;
  text-align: center;
  max-width: 22rem;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.55);
}
.overlay-card h2 {
  font-family: "Fredoka", sans-serif;
  color: var(--gold);
  margin: 0 0 0.6rem;
}
.overlay-card p {
  color: #d8e9df;
  line-height: 1.55rem;
  margin: 0 0 1.3rem;
}
.overlay-card p b {
  color: var(--ivory);
}

@media (max-width: 460px) {
  #board {
    gap: 0.55rem;
  }
  .set-title {
    font-size: 2.3rem;
    letter-spacing: 0.3em;
    padding-left: 0.3em;
  }
  .card .sym {
    width: 28%;
  }
}