:root {
  --bg-color: #0b0f19;
  --surface: #131b2e;
  --surface-hover: #1c2640;
  --border: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

[data-theme="light"] {
  --bg-color: #f8fafc;
  --surface: #ffffff;
  --surface-hover: #f1f5f9;
  --border: rgba(0, 0, 0, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-family);
  min-height: 100vh;
  line-height: 1.5;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 40px 20px;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  font-size: 1.7rem;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-domain {
  background-color: rgba(99, 102, 241, 0.15);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  margin-left: 4px;
}

.icon-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-main);
  padding: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.icon-btn:hover {
  background-color: var(--surface-hover);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Hero Section */
.hero {
  padding: 48px 0 32px 0;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background-color: rgba(99, 102, 241, 0.12);
  color: var(--accent);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.hero-title {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  line-height: 1.15;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* Filter Bar */
.filter-bar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

.search-box {
  position: relative;
  width: 100%;
  max-width: 440px;
}

.search-icon {
  position: absolute;
  top: 50%;
  left: 14px;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  fill: var(--text-muted);
  pointer-events: none;
}

#search-input {
  width: 100%;
  padding: 12px 14px 12px 42px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-main);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s;
}

#search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.category-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.pill-btn {
  background-color: var(--surface);
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.pill-btn:hover {
  color: var(--text-main);
  background-color: var(--surface-hover);
}

.pill-btn.active {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* Games Grid */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-focus);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.card-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.bg-green { background: linear-gradient(135deg, #10b981, #059669); }
.bg-orange { background: linear-gradient(135deg, #f97316, #ea580c); }
.bg-blue { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.bg-emerald { background: linear-gradient(135deg, #22c55e, #16a34a); }
.bg-amber { background: linear-gradient(135deg, #f59e0b, #d97706); }
.bg-purple { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }

.card-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background-color: var(--surface-hover);
  padding: 4px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.card-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 24px;
  flex-grow: 1;
}

.card-footer {
  margin-top: auto;
}

.play-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--accent);
  transition: gap 0.2s ease, color 0.2s ease;
}

.play-btn:hover {
  gap: 12px;
  color: var(--accent-hover);
}

/* Footer */
.footer {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

@media (max-width: 640px) {
  .hero-title { font-size: 2.2rem; }
  .grid-container { grid-template-columns: 1fr; }
}