:root {
  color-scheme: light;
  --color-cream: #f5f0e6;
  --color-ivory: #faf7f0;
  --color-forest: #17352a;
  --color-burgundy: #641f2a;
  --color-gold: #b89b5e;
  --color-dark: #1e211d;
  --color-muted: #777367;
  --color-border: #d8cebc;
  font-family: "Trebuchet MS", "Gill Sans", sans-serif;
  color: var(--color-dark);
  background: var(--color-cream);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(ellipse at 50% 10%, rgba(255, 255, 255, 0.56), transparent 48%),
    var(--color-cream);
}

button {
  font: inherit;
}

.page-shell {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  align-items: center;
  padding: 24px 20px 18px;
}

.masthead {
  display: flex;
  width: min(100%, 280px);
  align-items: center;
  gap: 12px;
  color: var(--color-muted);
}

.masthead .eyebrow {
  margin: 0;
  white-space: nowrap;
}

.masthead-rule,
.footer-rule {
  height: 1px;
  flex: 1;
  background: var(--color-border);
}

.eyebrow {
  color: var(--color-muted);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.19em;
  line-height: 1.6;
  text-transform: uppercase;
}

.screen {
  width: 100%;
  flex: 1;
}

.intro-screen,
.celebration-screen {
  display: grid;
  place-items: center;
  padding: 38px 0;
}

.intro-card,
.celebration-card {
  position: relative;
  width: min(100%, 540px);
  padding: clamp(34px, 8vw, 66px) 24px;
  border: 1px solid var(--color-border);
  background: rgba(250, 247, 240, 0.82);
  box-shadow: 0 16px 44px rgba(49, 43, 31, 0.06);
  text-align: center;
}

.intro-card::before,
.celebration-card::before {
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(184, 155, 94, 0.35);
  content: "";
  pointer-events: none;
}

h1 {
  margin: 0;
  color: var(--color-forest);
  font-family: "Cormorant Garamond", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: clamp(2.5rem, 9vw, 4.2rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
}

.intro-card .eyebrow,
.celebration-card .eyebrow {
  margin: 0 0 23px;
}

.ornament {
  display: block;
  margin: 20px 0 14px;
  color: var(--color-gold);
  font-size: 1rem;
}

.intro-copy,
.game-instructions,
.celebration-copy {
  color: var(--color-muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1rem;
  line-height: 1.7;
}

.intro-copy {
  max-width: 300px;
  margin: 18px auto 25px;
}

.setup-message {
  max-width: 390px;
  margin: 0 auto 18px;
  color: var(--color-burgundy);
  font-size: 0.84rem;
  line-height: 1.6;
}

.setup-message:empty {
  display: none;
}

.missing-assets {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 0 auto 18px;
}

.missing-asset {
  width: 72px;
  text-align: center;
}

.missing-asset-placeholder {
  display: grid;
  aspect-ratio: 1 / 1;
  place-items: center;
  border: 1px solid var(--color-gold);
  background: var(--color-forest);
  box-shadow: inset 0 0 0 4px var(--color-forest), inset 0 0 0 5px rgba(226, 208, 160, 0.5);
  color: #e2d0a0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1rem;
}

.missing-asset-name {
  display: block;
  margin-top: 5px;
  overflow-wrap: anywhere;
  color: var(--color-muted);
  font-size: 0.6rem;
  line-height: 1.35;
}

.button {
  position: relative;
  min-height: 48px;
  padding: 12px 25px;
  border: 1px solid var(--color-gold);
  border-radius: 2px;
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button:focus-visible,
.memory-card:focus-visible {
  outline: 3px solid var(--color-burgundy);
  outline-offset: 4px;
}

.button-primary {
  background: var(--color-forest);
  color: var(--color-ivory);
}

.button-primary:hover:not(:disabled) {
  background: #214638;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.game-screen {
  max-width: 760px;
  padding: 40px 0 25px;
}

.game-heading {
  text-align: center;
}

.game-heading .eyebrow {
  margin: 0 0 12px;
}

.game-heading h1 {
  font-size: clamp(2.35rem, 8vw, 3.5rem);
}

.game-instructions {
  margin: 12px 0 24px;
  font-size: 0.94rem;
}

.progress-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 0 auto 14px;
  color: var(--color-muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.progress-row p {
  margin: 0;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(8px, 2.2vw, 14px);
  width: 100%;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .board {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.memory-card {
  position: relative;
  aspect-ratio: 1 / 1;
  min-width: 0;
  padding: 0;
  overflow: hidden;
  border: 0;
  background: transparent;
  cursor: pointer;
  perspective: 900px;
  -webkit-tap-highlight-color: transparent;
}

.memory-card[aria-disabled="true"] {
  cursor: default;
}

.card-inner {
  position: absolute;
  inset: 0;
  border-radius: 2px;
  transform-style: preserve-3d;
  transition: transform 420ms cubic-bezier(0.2, 0.7, 0.25, 1);
}

.memory-card.is-revealed .card-inner,
.memory-card.is-matched .card-inner {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  inset: 0;
  display: grid;
  overflow: hidden;
  place-items: center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.card-back {
  border: 1px solid var(--color-gold);
  background-color: var(--color-forest);
  box-shadow: 0 4px 11px rgba(30, 33, 29, 0.12);
}

.card-back::before {
  position: absolute;
  inset: 5px;
  border: 1px solid rgba(226, 208, 160, 0.48);
  content: "";
}

.card-emblem {
  display: grid;
  width: 34%;
  height: 34%;
  place-items: center;
  border: 1px solid rgba(226, 208, 160, 0.7);
  color: #e2d0a0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(0.85rem, 4vw, 1.5rem);
}

.card-front {
  border: 1px solid var(--color-gold);
  background: var(--color-ivory);
  transform: rotateY(180deg);
}

.card-front img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-text {
  display: block;
  width: 100%;
  min-width: 0;
  max-height: 100%;
  padding: clamp(5px, 2vw, 12px);
  overflow: hidden;
  color: var(--color-forest);
  font-family: "Cormorant Garamond", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: clamp(0.5rem, 2.5vw, 1.1rem);
  line-height: 1.2;
  overflow-wrap: anywhere;
  text-align: center;
  text-wrap: pretty;
}

.memory-card.is-matched {
  z-index: 1;
  animation: match-settle 780ms cubic-bezier(0.2, 0.75, 0.25, 1);
}

.memory-card.is-matched::after {
  position: absolute;
  inset: 1px;
  border: 1px solid rgba(226, 208, 160, 0.85);
  background: linear-gradient(
    110deg,
    transparent 25%,
    rgba(255, 255, 255, 0.12) 42%,
    rgba(255, 246, 219, 0.76) 50%,
    rgba(255, 255, 255, 0.12) 58%,
    transparent 75%
  );
  content: "";
  pointer-events: none;
  animation: match-shimmer 900ms ease-out both;
}

@keyframes match-settle {
  0%, 100% { transform: scale(1); box-shadow: 0 4px 11px rgba(30, 33, 29, 0.12); }
  34% { transform: scale(1.045); box-shadow: 0 0 0 1px var(--color-gold), 0 8px 22px rgba(184, 155, 94, 0.46); }
}

@keyframes match-shimmer {
  0% { opacity: 0; background-position: 150% 0; }
  22% { opacity: 0.85; }
  100% { opacity: 0; background-position: -150% 0; }
}

.celebration-screen {
  position: relative;
  overflow: hidden;
}

.celebration-card {
  z-index: 1;
  width: min(100%, 640px);
  padding-top: clamp(50px, 12vw, 92px);
  padding-bottom: clamp(42px, 10vw, 76px);
  animation: card-appear 850ms cubic-bezier(0.2, 0.75, 0.25, 1) both;
}

.celebration-card h1 {
  color: var(--color-forest);
  font-size: clamp(3.4rem, 13vw, 6.2rem);
}

.celebration-rule {
  display: block;
  width: 54px;
  height: 1px;
  margin: 24px auto;
  background: var(--color-gold);
}

.celebration-copy {
  margin: 20px 0 0;
}

.button-secondary {
  margin-top: 8px;
  background: transparent;
  color: var(--color-forest);
}

.button-secondary:hover {
  background: rgba(184, 155, 94, 0.12);
}

.confetti {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.confetti-piece {
  position: absolute;
  top: -14px;
  width: 5px;
  height: 11px;
  background: var(--piece-color);
  opacity: 0;
  animation: confetti-fall var(--fall-duration) ease-in var(--fall-delay) both;
  transform: rotate(var(--piece-rotation));
}

@keyframes confetti-fall {
  0% { opacity: 0; transform: translate3d(0, -5vh, 0) rotate(0); }
  12% { opacity: 0.82; }
  100% { opacity: 0; transform: translate3d(var(--drift), 105vh, 0) rotate(500deg); }
}

@keyframes card-appear {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-footer {
  display: flex;
  width: min(100%, 340px);
  align-items: center;
  gap: 12px;
  color: var(--color-muted);
}

.page-footer p {
  margin: 0;
  white-space: nowrap;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.78rem;
  font-style: italic;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

[hidden] {
  display: none !important;
}

@media (min-width: 700px) {
  .page-shell {
    padding-top: 30px;
  }
}

@media (max-width: 380px) {
  .page-shell {
    padding-right: 14px;
    padding-left: 14px;
  }

  .game-screen {
    padding-top: 28px;
  }

  .progress-row {
    font-size: 0.59rem;
    letter-spacing: 0.09em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}