:root {
  color-scheme: dark;
  --ink: #fff9ef;
  --muted: #ead9d0;
  --soft: rgba(255, 249, 239, 0.72);
  --gold: #f2c46d;
  --aqua: #85d7cf;
  --rose: #f08d91;
  --plum: #381d34;
  --panel: rgba(29, 15, 34, 0.7);
  --panel-strong: rgba(29, 15, 34, 0.93);
  --line: rgba(255, 249, 239, 0.22);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  overflow: hidden;
  background: #130f1f;
  color: var(--ink);
}

button {
  font: inherit;
}

.game-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

#memoryCanvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
}

.hud {
  position: fixed;
  z-index: 2;
  top: 22px;
  left: 22px;
  right: 22px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--aqua);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  max-width: 640px;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(2rem, 5.4vw, 5.2rem);
  line-height: 0.93;
  transition: font-size 220ms ease, opacity 220ms ease, max-width 220ms ease;
}

.game-shell[data-playing="true"] h1 {
  max-width: 380px;
  font-size: clamp(1.45rem, 3vw, 2.8rem);
  opacity: 0.72;
}

.counter {
  min-width: 90px;
  padding: 12px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 249, 239, 0.09);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
  color: var(--ink);
  font-weight: 900;
  text-align: center;
}

.intro,
.memory-card,
.final-letter {
  position: fixed;
  z-index: 4;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 22px;
  background:
    radial-gradient(circle at 44% 48%, rgba(240, 141, 145, 0.18), transparent 34%),
    radial-gradient(circle at 68% 42%, rgba(242, 196, 109, 0.1), transparent 28%),
    rgba(9, 8, 14, 0.38);
  backdrop-filter: blur(8px);
}

.intro[data-hidden="true"],
.memory-card,
.final-letter {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 220ms ease, transform 220ms ease;
}

.memory-card[data-visible="true"],
.final-letter[data-visible="true"] {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.intro-copy,
.memory-card,
.final-letter > div {
  width: min(720px, 100%);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 26px 90px rgba(0, 0, 0, 0.42), inset 0 1px 0 rgba(255, 249, 239, 0.08);
}

.intro-copy,
.final-letter > div {
  padding: clamp(24px, 5vw, 52px);
}

.intro-copy h2,
.final-letter h2,
.memory-card h2 {
  margin-bottom: 16px;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(2.1rem, 6vw, 5.2rem);
  line-height: 0.96;
}

.intro-copy p,
.final-letter p,
.memory-line {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.primary-action {
  min-height: 52px;
  margin-top: 12px;
  padding: 0 22px;
  border: 0;
  background: var(--gold);
  color: #24180b;
  cursor: pointer;
  font-weight: 900;
  box-shadow: 0 14px 38px rgba(242, 196, 109, 0.26);
  transition: transform 160ms ease, background 160ms ease;
}

.primary-action:hover {
  transform: translateY(-1px);
  background: #ffdc8e;
}

.memory-card {
  inset: auto auto 32px 32px;
  display: block;
  place-items: initial;
  max-width: min(620px, calc(100vw - 64px));
  padding: 24px;
  background: var(--panel-strong);
}

.memory-date {
  margin-bottom: 10px;
  color: var(--aqua);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.memory-card h2 {
  font-size: clamp(2rem, 4vw, 3.7rem);
}

.memory-place {
  margin-bottom: 16px;
  color: var(--gold);
  font-weight: 900;
}

.memory-line {
  min-height: 92px;
  font-size: 1.12rem;
}

.final-letter {
  overflow: auto;
}

.final-letter > div {
  background: var(--panel-strong);
}

.hint {
  position: fixed;
  z-index: 3;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 249, 239, 0.1);
  color: var(--soft);
  font-size: 0.88rem;
  font-weight: 800;
  backdrop-filter: blur(12px);
  transition: opacity 180ms ease;
}

.hint[data-hidden="true"] {
  opacity: 0;
}

@media (max-width: 760px) {
  .hud {
    top: 16px;
    left: 16px;
    right: 16px;
  }

  h1 {
    max-width: 280px;
    font-size: clamp(1.8rem, 9vw, 3.4rem);
  }

  .counter {
    min-width: 74px;
    padding: 10px 12px;
  }

  .intro,
  .final-letter {
    padding: 14px;
  }

  .intro-copy,
  .final-letter > div {
    padding: 24px;
  }

  .memory-card {
    left: 14px;
    right: 14px;
    bottom: 14px;
    max-width: none;
    padding: 18px;
  }

  .memory-line {
    min-height: 110px;
  }

  .hint {
    width: calc(100vw - 28px);
    text-align: center;
  }
}