:root {
  --bg-top: #ffe8f3;
  --bg-bottom: #fff9d9;
  --card: rgba(255, 255, 255, 0.82);
  --card-border: #ffc7de;
  --text-main: #6b4768;
  --text-soft: #9e6f86;
  --pink: #ff7eb6;
  --pink-deep: #ff4c9b;
  --yellow: #ffd968;
  --mint: #b7f4d4;
  --mint-deep: #3fb67e;
  --shadow: 0 24px 50px rgba(231, 113, 164, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.7), transparent 22%),
    radial-gradient(circle at 85% 18%, rgba(255, 255, 255, 0.65), transparent 18%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  filter: blur(8px);
  opacity: 0.45;
  pointer-events: none;
}

body::before {
  top: 40px;
  left: -40px;
  background: rgba(255, 182, 214, 0.52);
}

body::after {
  right: -70px;
  bottom: 50px;
  background: rgba(255, 229, 140, 0.45);
}

.app-shell {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 36px;
}

.page-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.page-nav a,
.page-footer a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
}

.page-nav a {
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  border: 2px solid rgba(255, 205, 226, 0.82);
  box-shadow: 0 10px 18px rgba(231, 113, 164, 0.1);
}

.hero-card,
.game-panel {
  background: var(--card);
  backdrop-filter: blur(14px);
  border: 2px solid rgba(255, 255, 255, 0.65);
  border-radius: 32px;
  box-shadow: var(--shadow);
}

.hero-card {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 24px 26px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-soft);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1;
}

.subtitle {
  margin: 10px 0 0;
  font-size: 1rem;
  color: var(--text-soft);
}

.hero-stickers {
  display: flex;
  gap: 12px;
  font-size: clamp(1.8rem, 5vw, 3rem);
}

.sticker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.7);
  animation: float 3.2s ease-in-out infinite;
}

.sticker:nth-child(2) {
  animation-delay: 0.35s;
}

.sticker:nth-child(3) {
  animation-delay: 0.7s;
}

.game-panel {
  padding: 22px;
}

.status-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.status-pill {
  min-width: 120px;
  padding: 12px 16px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 246, 252, 0.95));
  border: 2px solid rgba(255, 199, 222, 0.72);
}

.label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-soft);
  margin-bottom: 4px;
}

.status-pill strong {
  font-size: 1.4rem;
}

.restart-button,
.control-button {
  border: 0;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, filter 0.16s ease;
}

.restart-button {
  padding: 14px 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, var(--pink), var(--pink-deep));
  color: white;
  font-size: 1rem;
  font-weight: 700;
  box-shadow: 0 14px 24px rgba(255, 76, 155, 0.28);
}

.restart-button:hover,
.control-button:hover {
  transform: translateY(-2px) scale(1.01);
}

.restart-button:active,
.control-button:active {
  transform: scale(0.97);
}

.board-wrap {
  position: relative;
  display: grid;
  place-items: center;
  padding: 18px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 251, 255, 0.9), rgba(255, 245, 228, 0.9)),
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.5) 0,
      rgba(255, 255, 255, 0.5) 22px,
      rgba(255, 246, 252, 0.7) 22px,
      rgba(255, 246, 252, 0.7) 44px
    );
  border: 2px solid rgba(255, 223, 176, 0.9);
}

#game-board {
  width: min(100%, 480px);
  aspect-ratio: 1;
  border-radius: 24px;
  box-shadow:
    inset 0 0 0 4px rgba(255, 255, 255, 0.82),
    0 24px 40px rgba(194, 139, 163, 0.2);
  background:
    linear-gradient(180deg, #fff8fc, #fef7dc);
}

.message-card {
  position: absolute;
  width: min(280px, calc(100% - 48px));
  padding: 18px 20px;
  border-radius: 24px;
  text-align: center;
  background: rgba(255, 255, 255, 0.82);
  border: 2px solid rgba(255, 199, 222, 0.82);
  box-shadow: 0 16px 30px rgba(231, 113, 164, 0.15);
}

.message-card.hidden {
  display: none;
}

.message-card h2 {
  margin: 0 0 8px;
  font-size: 1.25rem;
}

.message-card p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.45;
}

.tips-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin: 16px 0 20px;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.controls-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(70px, 86px));
  grid-template-areas:
    ". up ."
    "left down right";
  justify-content: center;
  gap: 12px;
  padding: 12px;
}

.control-button {
  min-height: 74px;
  border-radius: 22px;
  font-size: 1.9rem;
  background: linear-gradient(180deg, #ffffff, #ffe7f1);
  color: var(--text-main);
  box-shadow: 0 14px 24px rgba(231, 113, 164, 0.14);
}

.control-button.up { grid-area: up; }
.control-button.left { grid-area: left; }
.control-button.down { grid-area: down; }
.control-button.right { grid-area: right; }

.info-panel {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.info-card {
  padding: 20px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.8);
  border: 2px solid rgba(255, 214, 231, 0.88);
  box-shadow: var(--shadow);
}

.info-label {
  margin: 0 0 8px;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.info-card h2 {
  margin: 0 0 12px;
}

.info-card p,
.info-card li {
  color: var(--text-soft);
  line-height: 1.6;
}

.info-card ul {
  margin: 0;
  padding-left: 20px;
}

.info-card li + li {
  margin-top: 8px;
}

.page-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
  padding: 2px 4px 0;
  color: var(--text-soft);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 20px, 560px);
    padding-top: 14px;
  }

  .hero-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-stickers {
    align-self: stretch;
    justify-content: space-between;
  }

  .game-panel {
    padding: 16px;
  }

  .page-footer {
    padding-left: 2px;
    padding-right: 2px;
  }
}