/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue: #2563eb;
  --blue-hover: #1d4ed8;
  --dark: #0f172a;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg: #f8fafc;
  --card-bg: #fff;
  --radius: 12px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: 60px;
  display: flex;
  align-items: center;
  padding: 0 24px;
}
.navbar-inner {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--dark);
}
.nav-logo-icon {
  width: 34px; height: 34px;
  background: var(--blue);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 15px;
}
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  transition: color .15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--blue); }

/* Hero */
.hero {
  text-align: center;
  padding: 90px 24px 80px;
  max-width: 700px;
  margin: 0 auto;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero h1 span { color: var(--blue); }
.hero p {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 32px;
}
.btn-primary {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 36px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background .15s, transform .1s;
}
.btn-primary:hover { background: var(--blue-hover); transform: translateY(-1px); }

/* Section */
.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
}
.section-title { font-size: 1.6rem; font-weight: 800; color: var(--dark); }
.section-subtitle { font-size: 14px; color: var(--muted); margin-top: 4px; }
.view-all { font-size: 14px; color: var(--blue); font-weight: 500; white-space: nowrap; }
.view-all:hover { text-decoration: underline; }

.section-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 24px;
  max-width: 1152px;
  margin: 0 auto 0 auto;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

/* Game Card */
.game-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: box-shadow .15s, transform .1s;
  cursor: pointer;
}
.game-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,.08); transform: translateY(-2px); }
.card-tag {
  display: inline-block;
  background: #f1f5f9;
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  width: fit-content;
  margin-bottom: 4px;
}
.card-title { font-size: 16px; font-weight: 700; color: var(--dark); }
.card-desc { font-size: 13px; color: var(--muted); flex: 1; }
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
}
.card-date { font-size: 12px; color: var(--muted); }
.card-link { font-size: 13px; color: var(--blue); font-weight: 600; }
.card-link:hover { text-decoration: underline; }

/* Explore Page */
.explore-header {
  padding: 48px 24px 32px;
  max-width: 1200px;
  margin: 0 auto;
}
.explore-header h1 { font-size: 2.2rem; font-weight: 800; color: var(--dark); margin-bottom: 8px; }
.explore-header p { font-size: 15px; color: var(--muted); }

.explore-controls {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.search-wrap {
  position: relative;
  flex: 1;
  min-width: 220px;
  max-width: 340px;
}
.search-wrap svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
}
.search-input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px 10px 38px;
  font-size: 14px;
  outline: none;
  transition: border-color .15s;
  background: #fff;
}
.search-input:focus { border-color: var(--blue); }

.filter-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-btn {
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text);
  transition: all .15s;
}
.filter-btn:hover { border-color: var(--blue); color: var(--blue); }
.filter-btn.active { background: var(--blue); color: #fff; border-color: var(--blue); }

.results-count {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 16px;
  font-size: 13px;
  color: var(--muted);
}

/* Game Page */
.game-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}
.game-page-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 28px;
  transition: color .15s;
}
.game-page-back:hover { color: var(--blue); }
.game-page-tag { margin-bottom: 12px; }
.game-page h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
}
.game-page-meta {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 20px;
}
.game-page-desc {
  font-size: 15px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.codes-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--dark);
}
.codes-list { display: flex; flex-direction: column; gap: 10px; }
.no-active-codes { color: var(--muted); font-style: italic; padding: 12px 0; }
.code-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  gap: 12px;
}
.code-text {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
  word-break: break-all;
}
.copy-btn {
  flex-shrink: 0;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.copy-btn:hover { background: var(--blue-hover); }
.copy-btn.copied { background: #16a34a; }

/* No results */
.no-results {
  text-align: center;
  padding: 60px 24px;
  color: var(--muted);
  font-size: 15px;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  margin-top: 40px;
}

/* Responsive */
@media (max-width: 640px) {
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 60px 16px 50px; }
  .section { padding: 28px 16px; }
  .explore-header { padding: 32px 16px 20px; }
  .explore-controls { padding: 0 16px 16px; }
}
@media (max-width: 400px) {
  .cards-grid { grid-template-columns: 1fr; }
}