:root {
      --bg-dark: #0f0f0f;
      --youtube-red: #ff0000;
      --red-hover: #cc0000;
      --bg-light: #f9f9f9;
      --card-white: #ffffff;
      --text-dark: #0f0f0f;
      --muted: #606060;
      --border-color: #e5e5e5;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
      --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --container: 1200px;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
   
    body {
      font-family: Roboto, Arial, sans-serif;
      background-color: var(--bg-light);
      color: var(--text-dark);
    }
    a { text-decoration: none; color: inherit; }
    .container { width: min(100% - 32px, var(--container)); margin: 0 auto; }

    /* Skip Link */
    .skip-link {
      position: absolute; left: -999px; top: 12px; background: var(--youtube-red);
      color: #fff; padding: 10px 14px; border-radius: var(--radius-sm); z-index: 1000;
    }
    .skip-link:focus { left: 16px; }

    /* ==================== HEADER - BLACK ==================== */
    header {
      position: sticky; top: 0; z-index: 100;
      background: rgba(15, 15, 15, 0.98);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid #282828;
      color: #fff;
    }
    .nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
    .brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.3rem; letter-spacing: -0.5px; }

    /* ==================== HERO - LIGHT ==================== */
    .hero {
      background: linear-gradient(180deg, #ffffff 0%, #f5f5f5 100%);
      color: var(--text-dark); 
      padding: 60px 0; 
      border-bottom: 1px solid #e5e5e5;
    }
    .hero-grid { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: 40px; align-items: center; }
    h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1.2; margin-bottom: 16px; letter-spacing: -0.5px; }
    .lead { font-size: 1.1rem; color: var(--muted); line-height: 1.5; margin-bottom: 24px; }

    /* Search Bar - Light */
    .search-container { max-width: 600px; }
    .search-box {
      display: flex; 
      background: #ffffff; 
      border: 1px solid #d0d0d0;
      border-radius: 40px; 
      padding: 2px 2px 2px 20px; 
      align-items: center;
      box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    }
    .search-box:focus-within { border-color: #1c62b9; }
    .search-box input {
      flex: 1; background: transparent; border: 0; outline: none;
      color: var(--text-dark); font-size: 1rem; padding: 12px 0;
    }
    .search-box input::placeholder { color: #888; }

    .btn {
      border: 0; border-radius: 40px; padding: 12px 24px; font-weight: 500;
      font-size: 0.95rem; cursor: pointer; transition: all 0.2s ease;
    }
    .btn-primary { background: var(--youtube-red); color: #fff; }
    .btn-primary:hover { background: var(--red-hover); }
    .btn-search { 
      background: #f1f1f1; 
      color: #333; 
      border-left: 1px solid #e0e0e0; 
      border-radius: 0 40px 40px 0; 
      padding: 12px 30px; 
    }
    .btn-search:hover { background: #e5e5e5; }

    /* Hero Card - Light */
    .hero-card { 
      background: #ffffff; 
      border: 1px solid #e0e0e0; 
      border-radius: var(--radius-lg); 
      padding: 24px; 
      box-shadow: var(--shadow-sm);
    }
    .hero-card h2 { font-size: 1.2rem; margin-bottom: 12px; font-weight: 500; }
    .hero-card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 20px; line-height: 1.4; }
    .stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .stat { 
      background: #f8f8f8; 
      border: 1px solid #eee;
      border-radius: var(--radius-md); 
      padding: 12px; 
      text-align: center; 
    }
    .stat strong { display: block; font-size: 1.3rem; color: var(--text-dark); margin-bottom: 2px; }
    .stat span { font-size: 0.8rem; color: var(--muted); }

    /* Main Section */
    .section { padding: 40px 0 60px; }
    .section-head { margin-bottom: 24px; }
    .section-head h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 4px; }
    .section-head p { color: var(--muted); font-size: 0.95rem; }
    .category-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
    .chip {
      padding: 8px 16px; border-radius: 8px; border: 0; 
      background: rgba(0,0,0,0.05);
      color: var(--text-dark); cursor: pointer; font-weight: 500; font-size: 0.9rem; transition: 0.2s;
    }
    .chip:hover { background: rgba(0,0,0,0.1); }
    .chip.active { background: var(--text-dark); color: #fff; }

    /* Tools Grid */
    .tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
    .card {
      background: var(--card-white); 
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md); 
      padding: 20px; 
      display: flex; 
      flex-direction: column;
      box-shadow: var(--shadow-sm); 
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card:hover {
      transform: translateY(-4px); 
      box-shadow: var(--shadow-md); 
      border-color: #ccc;
    }

    .card-meta { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 12px; }
    .icon {
      width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
      font-size: 0.85rem; font-weight: bold; color: #fff; background: #606060; flex-shrink: 0;
    }
    .card[data-category="downloader"] .icon { background: #ff0000; }
    .card[data-category="editor"] .icon { background: #1c62b9; }
    .card[data-category="productivity"] .icon { background: #0f9d58; }
    .card[data-category="fun"] .icon { background: #f4b400; }

    .card-title-wrap { flex: 1; }
    .card h4 { font-size: 1rem; font-weight: 500; color: var(--text-dark); line-height: 1.4; margin-bottom: 4px; }
    .card p { color: var(--muted); font-size: 0.85rem; line-height: 1.4; }

    .card-actions { margin-top: auto; padding-top: 16px; display: flex; justify-content: space-between; align-items: center; }
    .pill { font-size: 0.75rem; color: var(--muted); background: rgba(0,0,0,0.05); padding: 4px 8px; border-radius: 4px; font-weight: 500; }
    .btn-sm { padding: 6px 14px; font-size: 0.85rem; border-radius: 4px; font-weight: 500; }

    /* Footer - Light */
    footer {
      background: #f1f1f1;
      color: var(--text-dark);
      border-top: 1px solid var(--border-color);
      padding: 40px 0 20px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 30px;
    }
    .footer-col {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
    }
    .footer-grid h5 {
      font-size: 0.95rem;
      margin-bottom: 14px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .footer-grid a {
      color: var(--muted);
      display: block;
      margin-bottom: 10px;
      font-size: 0.9rem;
    }
    .footer-grid a:hover { color: var(--text-dark); }
    .footer-grid p { color: var(--muted); font-size: 0.9rem; line-height: 1.4; max-width: 320px; }

    .social-links {
      display: flex;
      gap: 16px;
      margin-top: 18px;
      justify-content: center;
    }
    .social-icon {
      font-size: 1.4rem !important;
      color: var(--muted) !important;
      transition: color 0.2s, transform 0.2s;
    }
    .social-icon:hover { transform: scale(1.1); }

    .newsletter {
      display: flex;
      gap: 8px;
      margin-top: 12px;
      width: 100%;
      max-width: 340px;
    }
    .newsletter input {
      flex: 1; padding: 10px 14px; border-radius: var(--radius-sm);
      border: 1px solid var(--border-color); background: #fff; outline: none; font-size: 0.9rem;
    }

    .copyright {
      border-top: 1px solid #ddd;
      padding-top: 20px;
      color: var(--muted);
      font-size: 0.85rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 6px;
      text-align: center;
    }

    /* Responsive */
    @media (max-width: 992px) {
      .hero-grid { grid-template-columns: 1fr; gap: 30px; }
      .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    }
    @media (max-width: 576px) {
      .search-box { border-radius: var(--radius-md); padding-left: 12px; }
      .btn-search { border-radius: 0 var(--radius-md) var(--radius-md) 0; }
      .newsletter { flex-direction: column; gap: 10px; }
    }