* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', 'Noto Sans KR', sans-serif;
  background: linear-gradient(135deg, #e0f0ff 0%, #f0e6ff 50%, #ffe6f0 100%);
  min-height: 100vh;
  padding: 0 0 60px;
}

/* Header */
header {
  background: linear-gradient(135deg, #4f46e5, #7c3aed, #db2777);
  color: white;
  text-align: center;
  padding: 48px 24px 40px;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='20'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

header h1 {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
  position: relative;
}

header h1 span {
  display: inline-block;
}

header p {
  font-size: clamp(0.95rem, 2.5vw, 1.15rem);
  opacity: 0.9;
  position: relative;
}

/* Badge strip */
.badge-strip {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 20px 24px;
  background: white;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
}

.badge {
  background: #f0f4ff;
  color: #4f46e5;
  border: 1.5px solid #c7d2fe;
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.82rem;
  font-weight: 600;
}

/* Main grid */
main {
  max-width: 1100px;
  margin: 48px auto 0;
  padding: 0 24px;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #1e1b4b;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 2px;
  background: linear-gradient(to right, #c7d2fe, transparent);
  border-radius: 2px;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

/* Game card */
.game-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
  text-decoration: none;
  display: block;
  color: inherit;
}

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.15);
}

.game-card:hover .play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* Thumbnail */
.thumbnail {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}

.game-card:hover .thumbnail img {
  transform: scale(1.05);
}

.thumbnail-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4.5rem;
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.85);
  background: rgba(255, 255, 255, 0.92);
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.play-btn svg {
  width: 24px;
  height: 24px;
  fill: #4f46e5;
  margin-left: 3px;
}

/* Tag badge on thumbnail */
.tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255,255,255,0.92);
  color: #4f46e5;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.3px;
}

/* Card body */
.card-body {
  padding: 18px 20px 20px;
}

.card-body h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #1e1b4b;
  margin-bottom: 6px;
}

.card-body p {
  font-size: 0.84rem;
  color: #6b7280;
  line-height: 1.55;
}

.card-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid #f3f4f6;
}

.card-footer span {
  font-size: 0.76rem;
  color: #9ca3af;
}

.dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Individual card colors */
.card-halloween .thumbnail-fallback { background: linear-gradient(135deg, #1a0a2e, #3d1a6e); }
.card-cricket .thumbnail-fallback   { background: linear-gradient(135deg, #064e3b, #065f46); }
.card-valentine .thumbnail-fallback { background: linear-gradient(135deg, #9d174d, #db2777); }
.card-pony .thumbnail-fallback      { background: linear-gradient(135deg, #78350f, #b45309); }
.card-typing .thumbnail-fallback    { background: linear-gradient(135deg, #1e3a5f, #1d4ed8); }

.card-halloween .dot  { background: #a855f7; }
.card-cricket .dot    { background: #10b981; }
.card-valentine .dot  { background: #f43f5e; }
.card-pony .dot       { background: #f59e0b; }
.card-typing .dot     { background: #3b82f6; }

/* Footer */
.site-footer {
  text-align: center;
  margin-top: 60px;
  padding: 0 24px;
  color: #9ca3af;
  font-size: 0.82rem;
}

.footer-links {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  gap: 10px;
  align-items: center;
}

.footer-links a {
  color: #9ca3af;
  text-decoration: none;
  font-size: 0.82rem;
}

.footer-links a:hover {
  color: #6b7280;
  text-decoration: underline;
}

/* Sub pages */
.sub-header {
  background: linear-gradient(135deg, #4f46e5, #7c3aed, #db2777);
  color: white;
  padding: 36px 24px 32px;
  text-align: center;
}

.sub-header h1 {
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 800;
  margin-bottom: 8px;
}

.sub-header a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 0.9rem;
}

.sub-header a:hover { text-decoration: underline; }

.sub-content {
  max-width: 760px;
  margin: 48px auto;
  padding: 0 24px;
  line-height: 1.8;
  color: #374151;
}

.sub-content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #1e1b4b;
  margin: 32px 0 10px;
  padding-left: 12px;
  border-left: 4px solid #7c3aed;
}

.sub-content p {
  font-size: 0.92rem;
  margin-bottom: 12px;
}

.sub-content ul {
  padding-left: 20px;
  font-size: 0.92rem;
  margin-bottom: 12px;
}

.sub-content ul li { margin-bottom: 6px; }

.sub-content .updated {
  font-size: 0.8rem;
  color: #9ca3af;
  margin-bottom: 32px;
}

/* Responsive */
@media (max-width: 600px) {
  .game-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  main {
    margin-top: 32px;
  }
}