/* --- GAME STYLES --- */
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: #0f172a;
      color: #e5e7eb;
      margin: 0;
      padding: 20px;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    h1 {
      margin-bottom: 1rem;
      font-size: 2.5rem;
      text-shadow: 0 4px 6px rgba(0,0,0,0.3);
      text-align: center;
    }

    .game-container {
      display: flex;
      flex-direction: column;
      align-items: center;
      margin-bottom: 3rem;
    }

    .controls {
      display: flex;
      gap: 1rem;
      margin-bottom: 1.5rem;
      flex-wrap: wrap;
      justify-content: center;
    }

    button {
      padding: 0.75rem 1.5rem;
      border-radius: 999px;
      border: none;
      cursor: pointer;
      font-weight: 700;
      font-size: 1rem;
      background: #3b82f6;
      color: white;
      transition: all 0.2s ease;
      box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    }

    button:hover {
      background: #2563eb;
      transform: translateY(-2px);
      box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.5);
    }

    button.secondary {
      background: #4b5563;
    }

    button.secondary:hover {
      background: #374151;
      box-shadow: 0 0 0 4px rgba(75, 85, 99, 0.5);
    }

    .status {
      margin-bottom: 1.5rem;
      font-size: 1.5rem;
      text-align: center;
      font-weight: 600;
      min-height: 2.2rem;
      color: #fbbf24;
    }

    .board {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
      background: #1f2937;
      padding: 1.5rem;
      border-radius: 1.5rem;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }

    .cell {
      width: 6.5rem;
      height: 6.5rem;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 4rem;
      border-radius: 1rem;
      background: #111827;
      cursor: pointer;
      transition: all 0.1s ease;
      user-select: none;
      border: 2px solid #374151;
    }

    .cell:hover:not(.taken) {
      background: #1f2937;
      border-color: #4b5563;
      transform: scale(1.02);
    }

    .cell.taken {
      cursor: default;
      border-color: #1f2937;
    }

    .cell.x {
      color: #3b82f6;
      text-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
    }

    .cell.o {
      color: #ef4444;
      text-shadow: 0 0 15px rgba(239, 68, 68, 0.5);
    }

    .info {
      margin-top: 1rem;
      font-size: 1rem;
      color: #9ca3af;
      text-align: center;
      max-width: 25rem;
      line-height: 1.5;
    }

    /* --- ARTICLE STYLES (Full Width) --- */
    .article-container {
      width: 100%;             /* Full width */
      max-width: 100%;         /* Removed limit for full width */
      background: #1e293b;
      padding: 40px;
      border-top: 4px solid #3b82f6; /* Top border to separate from game */
      box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
      margin-top: 20px;
      box-sizing: border-box; /* Ensures padding doesn't break width */
    }

    .article-container h2 {
      color: #60a5fa;
      font-size: 2.2rem;
      margin-top: 0;
      border-bottom: 2px solid #374151;
      padding-bottom: 15px;
    }

    .article-container h3 {
      color: #e2e8f0;
      font-size: 1.8rem;
      margin-top: 2.5rem;
    }

    .article-container p {
      font-size: 1.2rem;
      line-height: 1.8;
      color: #cbd5e1;
      margin-bottom: 1.5rem;
    }

    /* Bold Keywords Style */
    .article-container strong {
      color: #ffffff;
      font-weight: 800; /* Extra bold */
      background: rgba(59, 130, 246, 0.1); /* Subtle highlight */
      padding: 2px 4px;
      border-radius: 4px;
    }

    /* Mobile Responsive */
    @media (max-width: 768px) {
      .cell { width: 5rem; height: 5rem; font-size: 3rem; }
      .article-container { padding: 20px; }
      h1 { font-size: 2rem; }
      .article-container h2 { font-size: 1.5rem; }
      .article-container h3 { font-size: 1.3rem; }
      .article-container p { font-size: 1rem; }
    }