:root {
      --bg-primary: #0a0a0a;
      --bg-secondary: #111111;
      --bg-tertiary: #1a1a1a;
      --bg-glass: rgba(255, 255, 255, 0.08);
      --bg-glass-hover: rgba(255, 255, 255, 0.14);
      --border-glass: rgba(255, 255, 255, 0.28);
      --shadow-glass: 
          0 20px 40px rgba(0, 0, 0, 0.25),
          inset 0 1px 1px rgba(255, 255, 255, 0.35);
      --text-primary: #ffffff;
      --text-secondary: #a0a0a0;
      --text-muted: #666666;
      --accent-primary: #00d9ff;
      --accent-secondary: #ff006e;
      --accent-tertiary: #8338ec;
      --accent-quaternary: #3a86ff;
      --accent-success: #06ffa5;
      --accent-warning: #ffbe0b;
      --accent-error: #fb5607;
      --border-glass: rgba(255, 255, 255, 0.1);
      --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.3);
      --gradient-primary: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-quaternary) 100%);
      --gradient-secondary: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-tertiary) 100%);
      --gradient-success: linear-gradient(135deg, var(--accent-success) 0%, var(--accent-primary) 100%);
    }

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

    html { scroll-behavior: smooth; }

    body {
      font-family: 'Inter', sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.6;
      overflow-x: hidden;
      position: relative;
    }

   
    .bg-animation {
      position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; opacity: 0.4;
    }
    .bg-animation::before {
      content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
      background: 
        radial-gradient(ellipse 80% 80% at 50% -20%, rgba(0, 217, 255, 0.15), transparent),
        radial-gradient(ellipse 80% 80% at 20% 60%, rgba(255, 0, 110, 0.1), transparent),
        radial-gradient(ellipse 80% 80% at 80% 40%, rgba(131, 56, 236, 0.1), transparent);
      animation: gradientShift 20s ease-in-out infinite;
    }
    @keyframes gradientShift { 0%, 100% { opacity: 0.4; } 50% { opacity: 0.6; } }

    .particles { position: fixed; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: -1; }
    .particle {
      position: absolute; width: 2px; height: 2px; background: var(--accent-primary);
      border-radius: 50%; animation: float 15s infinite linear; opacity: 0.3;
    }
    @keyframes float {
      0% { transform: translateY(100vh) translateX(0) rotate(0deg); opacity: 0; }
      10% { opacity: 0.3; } 90% { opacity: 0.3; }
      100% { transform: translateY(-100px) translateX(100px) rotate(360deg); opacity: 0; }
    }

    
    .navbar {
      position: fixed;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
    
      background:
        linear-gradient(
          180deg,
          rgba(255,255,255,0.35),
          rgba(255,255,255,0.05)
        ),
        var(--bg-glass);
    
      backdrop-filter: blur(1px) saturate(180%);
      -webkit-backdrop-filter: blur(1px) saturate(180%);
    
      border: 1px solid var(--border-glass);
      border-radius: 50px;
    
      padding: 12px 26px;
      max-width: 90%;
    
      display: flex;
      align-items: center;
      justify-content: center;
    
      box-shadow:
        0 25px 50px rgba(0, 0, 0, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        inset 0 -1px 0 rgba(255, 255, 255, 0.08);
    
      transition:
        background 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
      z-index: 1000;
    }
    
    
    .navbar::before {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: inherit;
    
      background: radial-gradient(
        120% 80% at 50% -20%,
        rgba(255,255,255,0.55),
        transparent 60%
      );
    
      opacity: 0.6;
      pointer-events: none;
    }

    .navbar:hover {
      background:
        linear-gradient(
          180deg,
          rgba(255,255,255,0.45),
          rgba(255,255,255,0.12)
        ),
        var(--bg-glass-hover);
    
      box-shadow:
        0 30px 70px rgba(0, 0, 0, 0.45),
        inset 0 1px 1px rgba(255, 255, 255, 0.45);
    
      transform: translateX(-50%) translateY(-1px);
    }
    
    @media (prefers-color-scheme: dark) {
      .navbar {
        --bg-glass: rgba(20, 20, 20, 0.55);
        --bg-glass-hover: rgba(30, 30, 30, 0.7);
        --border-glass: rgba(255, 255, 255, 0.15);
      }
    }

    
    .navbar.scrolled {
      backdrop-filter: blur(22px) saturate(200%);
    }


    .nav-links { display: flex; list-style: none; gap: 30px; align-items: center; margin: 0; padding: 0; }
    
    .nav-link {
      color: var(--text-secondary); text-decoration: none; font-weight: 500; font-size: 14px;
      transition: all 0.3s ease; position: relative; padding: 8px 16px; border-radius: 20px;
      white-space: nowrap; 
    }
    .nav-link:hover { color: var(--text-primary); background: var(--bg-glass); }
    .nav-link.active { color: var(--accent-primary); background: rgba(0, 217, 255, 0.1); }

   
    .menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
    .bar { width: 20px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: 0.3s; }

    
    .hero {
      min-height: 100vh; display: flex; flex-direction: column;
      justify-content: center; align-items: center; text-align: center;
      padding: 0 20px; position: relative;
    }

    .hero-badge {
      display: inline-flex; align-items: center; gap: 8px;
      background: var(--bg-glass); border: 1px solid var(--border-glass);
      border-radius: 50px; padding: 8px 20px; font-size: 14px; font-weight: 500;
      margin-bottom: 50px; 
      margin-top: 160px; 
      animation: slideUp 1s ease-out; letter-spacing: 1.5px;
    }

    .badge-dot {
      width: 8px; height: 8px; background: var(--accent-success); border-radius: 50%;
      animation: pulse 2s ease-in-out infinite;
    }
    @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

    .hero-title {
      font-size: clamp(2.5rem, 8vw, 6rem); 
      font-weight: 900; background: var(--gradient-primary);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
      margin-bottom: 24px; animation: slideUp 1s ease-out 0.1s both; letter-spacing: -0.02em;
    }

    .hero-subtitle {
      font-size: clamp(1.1rem, 3vw, 1.5rem);
      color: var(--text-secondary); max-width: 900px; margin-bottom: 50px;
      animation: slideUp 1s ease-out 0.2s both; line-height: 1.5;
    }

    .hero-cta {
      display: flex; gap: 20px; flex-wrap: wrap; justify-content: center;
      animation: slideUp 1s ease-out 0.4s both;
    }

    
    .btn {
      padding: 18px 36px; border-radius: 50px; text-decoration: none; font-weight: 600; font-size: 16px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); border: none; cursor: pointer;
      display: inline-flex; align-items: center; gap: 10px; position: relative; overflow: hidden;
    }
    .btn-primary { background: var(--gradient-primary); color: var(--text-primary); }
    .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 20px 40px rgba(0, 217, 255, 0.4); }
    .btn-secondary { background: var(--bg-glass); color: var(--text-primary); border: 1px solid var(--border-glass); backdrop-filter: blur(10px); }
    .btn-secondary:hover { background: var(--bg-glass-hover); transform: translateY(-3px); box-shadow: var(--shadow-glass); }

    
    .section { padding: 120px 20px; max-width: 1400px; margin: 0 auto; }
    .section-header { text-align: center; margin-bottom: 80px; }
    .section-badge { display: inline-block; color: var(--accent-primary); font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 16px; }
    .section-title {
      font-size: clamp(2rem, 5vw, 4.5rem); font-weight: 800; margin-bottom: 20px;
      background: var(--gradient-secondary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    }
    .section-subtitle { font-size: 1.4rem; color: var(--text-secondary); max-width: 700px; margin: 0 auto; }

   
    .features-grid {
      display: grid; 
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
      gap: 30px; margin: 60px 0;
    }

    .feature-card {
      background: var(--bg-glass); backdrop-filter: blur(20px); border: 1px solid var(--border-glass);
      border-radius: 24px; padding: 40px; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative; overflow: hidden;
    }
    .feature-card::before {
      content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
      background: var(--gradient-primary); opacity: 0; transition: opacity 0.3s ease;
    }
    .feature-card:hover { background: var(--bg-glass-hover); transform: translateY(-8px); box-shadow: var(--shadow-glass); }
    .feature-card:hover::before { opacity: 1; }

    .feature-icon {
      width: 64px; height: 64px; background: var(--gradient-primary); border-radius: 16px;
      display: flex; align-items: center; justify-content: center; font-size: 2rem; margin-bottom: 24px;
    }
    .feature-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 16px; color: var(--text-primary); }
    .feature-description { color: var(--text-secondary); line-height: 1.7; font-size: 1.05rem; }

    .stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; margin: 80px 0; }
    .stat-card { text-align: center; padding: 20px; }
    .stat-number {
      font-size: 4rem; font-weight: 900; background: var(--gradient-success);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
      margin-bottom: 12px; line-height: 1;
    }
    .stat-label { font-size: 1.1rem; color: var(--text-secondary); font-weight: 500; }

    .cta-section {
      background: var(--bg-glass); backdrop-filter: blur(20px); border: 1px solid var(--border-glass);
      border-radius: 32px; padding: 80px 40px; text-align: center; position: relative; overflow: hidden; margin: 80px 0;
    }
    .cta-section::before {
      content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
      background: var(--gradient-primary); opacity: 0.05;
    }
    .cta-title { font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 800; margin-bottom: 24px; position: relative; z-index: 1; }
    .cta-description { font-size: 1.3rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto 40px; position: relative; z-index: 1; }

    .footer { border-top: 1px solid var(--border-glass); padding: 40px 20px; text-align: center; color: var(--text-muted); font-size: 14px; }

    @keyframes slideUp { from { opacity: 0; transform: translateY(50px); } to { opacity: 1; transform: translateY(0); } }
    .fade-in { opacity: 0; transform: translateY(30px); transition: all 0.6s ease; }
    .fade-in.visible { opacity: 1; transform: translateY(0); }
    
    .progress-bar {
      position: fixed; top: 0; left: 0; width: 0%; height: 3px;
      background: var(--gradient-primary); z-index: 1001; transition: width 0.1s ease;
    }

    
    @media (max-width: 1024px) {
        .section { padding: 80px 20px; }
        .features-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .navbar {
        left: auto;
        transform: none;
        right: 20px;
        width: 50px; 
        height: 50px;
        border-radius: 50%; 
        padding: 0;
        flex-direction: column; 
        overflow: hidden;
      }
      
      
      .navbar.active {
        width: 90%; height: auto;
        border-radius: 24px;
        padding: 20px 20px 30px 20px;
        background: rgba(10, 10, 10, 0.95);
        left: 50%;
        right: auto;
        transform: translateX(-50%);
      }

      .menu-toggle { display: flex; z-index: 2; margin: 15px 0; }
      .navbar.active .menu-toggle { margin: 0 0 20px 0; align-self: flex-end; }
      
      .nav-links { 
        display: none; 
        flex-direction: column; 
        width: 100%; 
        gap: 20px; 
        opacity: 0;
        transition: opacity 0.3s ease;
      }
      
      .navbar.active .nav-links { display: flex; opacity: 1; }

      
      .navbar.active .bar:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
      .navbar.active .bar:nth-child(2) { opacity: 0; }
      .navbar.active .bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

      .nav-link { font-size: 16px; padding: 10px; display: block; text-align: center; }
      
      .hero { justify-content: flex-start; padding-top: 75px; }
      .hero-badge { margin-top: 20px; margin-bottom: 20px; }
      .hero-title { line-height: 1.1; }
      .hero-cta { flex-direction: column; width: 100%; max-width: 400px; margin: 0 auto; }
      
      .btn { width: 100%; justify-content: center; }
      
      .features-grid { grid-template-columns: 1fr; gap: 20px; margin: 40px 0; }
      .feature-card { padding: 30px; }
      
      .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; margin: 40px 0; }
      .stat-number { font-size: 2.5rem; }
      .stat-label { font-size: 0.9rem; }

      .cta-section { padding: 40px 20px; border-radius: 24px; }
      .cta-description { font-size: 1rem; }
    }

    @media (max-width: 480px) {
      .hero-badge { margin-bottom: 30px; }
      .section-header { margin-bottom: 40px; }
      .stats-grid { grid-template-columns: 1fr; } 
      .feature-title { font-size: 1.3rem; }
    }