:root {
      --bg: #0e0e0e;            /* Dark black background */
      --surface: #181818;
      --card: #070707;
      --accent: #0055ff;
      --accent-hover: #3377ff;
      --text: #e6e6e6;
      --text-muted: #a0a0a0;
      --shadow: rgba(0, 0, 0, 0.5);
      --border-radius: 12px;
      --font-family: 'Helvetica Neue', Arial, sans-serif;
      --transition: all 0.3s ease;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: var(--font-family);
    }

    body {
      background-color: var(--bg);
      color: var(--text);
      line-height: 1.6;
      min-height: 100vh;
    }

main, .hero, .features, .download-page, .doc-page, .status-page {
  flex: 1 0 auto;
}

.logo img {
  height: 40px;
  width: auto;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 999;
  backdrop-filter: blur(12px);
  background-color: rgba(0, 0, 0, 0.65);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--accent);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  position: relative;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  padding: 0.3rem 0;
  transition: color 0.2s;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a:hover {
  color: #fff;
}

@media (max-width: 768px) {
  .nav-links {
    flex-direction: column;
    position: absolute;
    top: 70px;
    right: 2rem;
    background-color: rgba(0, 0, 0);
    padding: 1rem;
    border-radius: 0.5rem;
    display: none;
  }

  .nav-links.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text);
  }
}

    .menu-toggle {
      display: none;
      font-size: 1.5rem;
      color: var(--accent);
      cursor: pointer;
    }

    /* Container */
    .container {
      max-width: 1000px;
      margin: 3rem auto;
      padding: 0 1.5rem;
    }

    /* Support Article */
    .support-article {
      background-color: var(--surface);
      padding: 2rem;
      border-radius: var(--border-radius);
      box-shadow: 0 4px 12px var(--shadow);
      margin-bottom: 2rem;
    }

    .support-article h1 {
      color: var(--accent);
      font-size: 2rem;
      margin-bottom: 1rem;
    }

    .support-article h3 {
      color: var(--accent);
      font-size: 1.25rem;
      margin: 1.5rem 0 0.75rem;
      cursor: pointer;
      transition: var(--transition);
    }

    .support-article h3:hover {
      color: var(--accent-hover);
    }

    .support-article p,
    .support-article ol,
    .support-article ul {
      color: var(--text-muted);
      font-size: 1rem;
      margin-bottom: 1rem;
      padding-left: 1.5rem;
    }

    .article-content {
      max-height: 0;
      overflow: hidden;
      padding: 0 1.5rem;
      border-left: 4px solid var(--accent);
      transition: max-height 0.4s ease, padding 0.4s ease;
    }

    .article-content.expanded {
      max-height: 1000px;
      padding: 1.5rem;
    }

    /* Chat Widget */
    .chat-container {
      position: fixed;
      bottom: 20px;
      right: 20px;
      width: 360px;
      height: 480px;
      background: var(--surface);
      border-radius: var(--border-radius);
      box-shadow: 0 8px 24px var(--shadow);
      display: flex;
      flex-direction: column;
      z-index: 10000;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .chat-container.minimized {
      transform: translateY(100%) translateY(-60px);
      opacity: 0;
    }

    .chat-toggle {
      position: fixed;
      bottom: 20px;
      right: 20px;
      width: 60px;
      height: 60px;
      background: var(--accent);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 12px var(--shadow);
      transition: var(--transition);
      z-index: 10001;
    }

    .chat-toggle:hover {
      background: var(--accent-hover);
      transform: scale(1.1);
    }

    .chat-toggle img {
      width: 32px;
      height: 32px;
    }

    .chat-header {
      background: var(--accent);
      color: white;
      padding: 1rem;
      display: flex;
      align-items: center;
      gap: 0.75rem;
      border-top-left-radius: var(--border-radius);
      border-top-right-radius: var(--border-radius);
      cursor: move;
    }

    .chat-header img {
      width: 24px;
      height: 24px;
    }

    .chat-header .minimize-btn {
      margin-left: auto;
      background: none;
      border: none;
      color: white;
      font-size: 1.2rem;
      cursor: pointer;
      transition: var(--transition);
    }

    .chat-header .minimize-btn:hover {
      color: var(--text-muted);
    }

    .chat-box {
      flex: 1;
      overflow-y: auto;
      padding: 1rem;
      background: var(--card);
      scrollbar-width: thin;
      scrollbar-color: var(--accent) transparent;
    }

    .chat-box::-webkit-scrollbar {
      width: 6px;
    }

    .chat-box::-webkit-scrollbar-thumb {
      background: var(--accent);
      border-radius: 3px;
    }

    .message {
      margin-bottom: 1rem;
      max-width: 80%;
    }

    .message.bot {
      align-self: flex-start;
    }

    .message.user {
      align-self: flex-end;
    }

    .sender {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--accent);
      margin-bottom: 0.25rem;
    }

    .bubble {
      padding: 0.75rem 1rem;
      border-radius: var(--border-radius);
      font-size: 0.95rem;
      line-height: 1.4;
      user-select: text;
    }

    .message.bot .bubble {
      background: var(--surface);
      color: var(--text);
      border-bottom-left-radius: 2px;
    }

    .message.user .bubble {
      background: var(--accent);
      color: white;
      border-bottom-right-radius: 2px;
    }

    .bubble.typing {
      font-style: italic;
      opacity: 0.7;
    }

    .bubble.typing::after {
      content: '...';
      animation: typingDots 1.5s infinite;
    }

    @keyframes typingDots {
      0% { content: '.'; }
      33% { content: '..'; }
      66% { content: '...'; }
    }

    .quick-options {
      padding: 0.75rem;
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      background: var(--surface);
      border-top: 1px solid var(--card);
    }

    .quick-options button {
      flex: 1 1 45%;
      background: var(--accent);
      color: white;
      border: none;
      padding: 0.5rem;
      border-radius: 8px;
      cursor: pointer;
      font-size: 0.9rem;
      font-weight: 500;
      transition: var(--transition);
    }

    .quick-options button:hover {
      background: var(--accent-hover);
    }

    .chat-input {
      display-flex: flex;
      padding: 0.75rem;
      background: var(--surface);
      border-top: 1px solid var(--card);
      gap: 0.5rem;
    }

    .chat-input input {
      flex: 1;
      padding: 0.5rem 0.75rem;
      border: none;
      border-radius: 8px;
      background: var(--card);
      color: var(--text);
      font-size: 0.95rem;
    }

    .chat-input input:focus {
      outline: 2px solid var(--accent);
    }

    .chat-input button {
      padding: 0.5rem 1rem;
      background: var(--accent);
      color: white;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      font-weight: 500;
      transition: var(--transition);
    }

    .chat-input button:hover {
      background: var(--accent-hover);
    }

    /* Responsive */
    @media (max-width: 768px) {
      .navbar {
        padding: 1rem;
      }

      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        right: 1rem;
        background: var(--surface);
        padding: 1rem;
        border-radius: var(--border-radius);
        box-shadow: 0 4px 12px var(--shadow);
      }

      .nav-links.active {
        display: flex;
      }

      .menu-toggle {
        display: block;
      }

      .chat-container {
        width: 90vw;
        max-width: 340px;
        height: 420px;
      }

      .container {
        margin: 2rem auto;
        padding: 0 1rem;
      }
    }