:root {
  --bg: #0a0a0f;
  --bg2: #12121a;
  --bg3: #1a1a2e;
  --neon: #00f5ff;
  --neon2: #ff00ff;
  --neon3: #00ff88;
  --text: #e0e0ff;
  --muted: #666680;
  --danger: #ff4466;
  --card: #16162a;
  --border: #2a2a4a;
  --radius: 12px;
  --font: 'Segoe UI', system-ui, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
}

a { color: var(--neon); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.5px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--neon), #0088ff);
  color: #000;
}
.btn-primary:hover { filter: brightness(1.15); transform: translateY(-1px); }
.btn-secondary {
  background: transparent;
  border: 1.5px solid var(--neon);
  color: var(--neon);
}
.btn-secondary:hover { background: rgba(0,245,255,0.1); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.2); }
.btn-sm { padding: 6px 14px; font-size: 12px; }

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

/* Form */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; }
.form-control {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 14px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
.form-control:focus { border-color: var(--neon); box-shadow: 0 0 0 3px rgba(0,245,255,0.1); }
textarea.form-control { resize: vertical; min-height: 100px; }

/* Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: rgba(10,10,15,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.navbar-brand {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--neon), var(--neon2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}
.navbar-links { display: flex; gap: 16px; align-items: center; }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(4px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.modal-title { font-size: 20px; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--muted); font-size: 24px; cursor: pointer; line-height: 1; }
.modal-close:hover { color: var(--text); }

/* Tabs */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.tab {
  padding: 10px 18px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}
.tab.active, .tab:hover { color: var(--neon); }
.tab.active { border-bottom-color: var(--neon); }

/* Badge */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-master { background: rgba(255,0,255,0.15); color: var(--neon2); border: 1px solid var(--neon2); }
.badge-player { background: rgba(0,245,255,0.1); color: var(--neon); border: 1px solid var(--neon); }
.badge-quiz { background: rgba(0,255,136,0.1); color: var(--neon3); border: 1px solid var(--neon3); }
.badge-game { background: rgba(0,136,255,0.1); color: #0088ff; border: 1px solid #0088ff; }

/* Glow effects */
.glow { text-shadow: 0 0 20px var(--neon), 0 0 40px rgba(0,245,255,0.3); }
.glow-border { box-shadow: 0 0 20px rgba(0,245,255,0.15); }

/* Alert */
.alert { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 16px; }
.alert-error { background: rgba(255,68,102,0.1); border: 1px solid var(--danger); color: var(--danger); }
.alert-success { background: rgba(0,255,136,0.1); border: 1px solid var(--neon3); color: var(--neon3); }

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--neon);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Key-value editor */
.kv-row { display: flex; gap: 8px; margin-bottom: 8px; }
.kv-row input { flex: 1; }

/* Games grid */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.game-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}
.game-card:hover { border-color: var(--neon); transform: translateY(-2px); }
.game-card-body { padding: 20px; }
.game-card-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.game-card-meta { font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.game-card-actions { display: flex; gap: 8px; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }