:root{
    --primary:#FF6B47; --primary-dark:#E55A3C; --secondary:#FF8766; --accent:#696969;
    --bg-primary:#ffffff; --bg-secondary:#fafafa; --bg-tertiary:#f5f5f5;
    --text-primary:#2c2c2c; --text-secondary:#696969; --text-tertiary:#999;
    --border:#e5e5e5; --shadow:rgba(44,44,44,.08); --shadow-lg:rgba(44,44,44,.12)
  }
  [data-theme="dark"]{
    --bg-primary:#1a1a1a; --bg-secondary:#2a2a2a; --bg-tertiary:#3a3a3a;
    --text-primary:#fff; --text-secondary:#ccc; --text-tertiary:#999;
    --border:#404040; --shadow:rgba(0,0,0,.3); --shadow-lg:rgba(0,0,0,.4)
  }
  *{margin:0;padding:0;box-sizing:border-box}
  body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;transition:background .3s,color .3s}
  .container{max-width:1200px;margin:0 auto;padding:0 20px}

  .theme-toggle{position:fixed;bottom:30px;right:30px;z-index:1000;background:var(--primary);border:none;border-radius:50%;width:56px;height:56px;color:#fff;font-size:20px;cursor:pointer;box-shadow:0 4px 16px var(--shadow-lg);transition:.2s}
  .theme-toggle:hover{background:var(--primary-dark)}

  .header{position:sticky;top:0;z-index:999;background:var(--bg-primary);border-bottom:1px solid var(--border);padding:16px 0;transition:.2s}
  .header.scrolled{box-shadow:0 2px 8px var(--shadow)}
  .nav{display:flex;justify-content:space-between;align-items:center}
  .logo{display:flex;align-items:center;gap:12px;text-decoration:none}
  .logo-icon{width:40px;height:40px;background:var(--primary);border-radius:8px;display:grid;place-items:center;color:#fff;font-weight:700;font-size:18px}
  .logo-text .small{font-size:11px;font-weight:500;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.1em}
  .logo-text .large{font-size:20px;font-weight:800;color:var(--text-primary);margin-top:-2px}
  .nav-links{display:flex;gap:32px;list-style:none}
  .nav-links a{text-decoration:none;color:var(--text-secondary);font-weight:500;font-size:14px;transition:.2s;position:relative}
  .nav-links a:hover{color:var(--primary)}
  .nav-buttons{display:flex;gap:12px;align-items:center}
  .btn{padding:10px 20px;border-radius:6px;text-decoration:none;font-weight:500;font-size:14px;display:inline-flex;align-items:center;justify-content:center;border:none;cursor:pointer;transition:.2s}
  .btn-outline{border:1px solid var(--border);color:var(--text-primary);background:var(--bg-primary)}
  .btn-outline:hover{background:var(--bg-secondary);border-color:var(--primary);color:var(--primary)}
  .btn-primary{background:var(--primary);color:#fff;border:none}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}

  .hero{padding:100px 0 80px}
  .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
  .hero-content h1{font-size:52px;font-weight:800;color:var(--text-primary);line-height:1.1;margin-bottom:24px;letter-spacing:-.02em}
  .hero-content .highlight{color:var(--primary)}
  .hero-content p{font-size:20px;color:var(--text-secondary);margin-bottom:40px}
  .hero-buttons{display:flex;gap:16px;margin-bottom:24px;flex-wrap:wrap;}
  .hero-features{list-style:none}
  .hero-features li{font-size:15px;color:var(--text-secondary);margin-bottom:10px;position:relative;padding-left:24px}
  .hero-features li::before{content:'•';position:absolute;left:0;color:var(--primary);font-weight:bold;font-size:20px}
  .hero-image{display:flex;justify-content:center}
  .hero-logo{width:500px;height:410px;background:var(--bg-secondary);border:2px solid var(--border);border-radius:12px;display:grid;place-items:center;box-shadow:0 8px 32px var(--shadow-lg);transition:.2s}
  .hero-logo:hover{transform:scale(1.05)}
  .hero-logo-content{color:var(--primary);text-align:center}
  .hero-logo-content .big{font-size:56px;font-weight:800;margin-bottom:8px;letter-spacing:-.02em}
  .hero-logo-content .small{font-size:18px;color:var(--text-secondary);font-weight:500}

  .section{padding:80px 0}
  .section-alt{background:var(--bg-secondary)}
  .section-title{font-size:44px;font-weight:800;color:var(--text-primary);text-align:center;margin-bottom:16px;letter-spacing:-.02em}
  .section-subtitle{text-align:center;max-width:700px;margin:0 auto 60px;color:var(--text-secondary);font-size:18px}

  .cards-grid{display:grid;gap:24px}
  .cards-grid.cols-4{grid-template-columns:repeat(4,1fr)}
  .cards-grid.cols-3{grid-template-columns:repeat(3,1fr)}
  .card{background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;padding:32px;transition:.2s}
  .card:hover{box-shadow:0 4px 16px var(--shadow-lg);transform:translateY(-2px);border-color:var(--primary)}
  .card-step{font-size:14px;font-weight:600;color:var(--primary);margin-bottom:12px;text-transform:uppercase;letter-spacing:.05em}
  .card-title{font-size:20px;font-weight:700;color:var(--text-primary);margin-bottom:12px}
  .card-desc{font-size:15px;color:var(--text-secondary)}

  .pricing-card{background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;padding:32px;box-shadow:0 2px 8px var(--shadow);transition:.2s;display:flex;flex-direction:column}
  .pricing-card.featured{border-color:var(--primary);border-width:2px}
  .pricing-title{font-size:20px;font-weight:700;color:var(--text-primary);margin-bottom:8px}
  .pricing-desc{font-size:15px;color:var(--text-secondary);margin-bottom:20px}
  .pricing-price{font-size:28px;font-weight:800;color:var(--primary);margin-bottom:20px}
  .pricing-features{list-style:none;margin-bottom:28px}
  .pricing-features li{font-size:14px;color:var(--text-secondary);margin-bottom:10px;position:relative;padding-left:20px}
  .pricing-features li::before{content:'•';position:absolute;left:0;color:var(--primary);font-weight:bold;font-size:16px}
  .pricing-cta{margin-top:auto}

  .faq-container{max-width:800px;margin:0 auto}
  .faq-item{background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;margin-bottom:12px;overflow:hidden;transition:.2s}
  .faq-item:hover{box-shadow:0 2px 8px var(--shadow)}
  .faq-question{padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:var(--text-primary);border:none;background:none;width:100%;text-align:left;font-size:16px}
  .faq-question:hover{color:var(--primary)}
  .faq-plus{font-size:18px;transition:transform .2s;color:var(--primary);font-weight:300}
  .faq-answer{padding:0 24px 20px;color:var(--text-secondary);display:none;font-size:15px}
  .faq-item.active .faq-answer{display:block}
  .faq-item.active .faq-plus{transform:rotate(45deg)}

  .cta-section{padding:80px 0;background:var(--primary)}
  .cta-box{text-align:center;color:#fff}
  .cta-title{font-size:36px;font-weight:800;margin-bottom:12px;letter-spacing:-.02em}
  .cta-desc{opacity:.9;margin-bottom:24px;font-size:18px}
  .btn-white{background:#fff;color:var(--primary);padding:12px 28px;border-radius:6px;text-decoration:none;font-weight:600;box-shadow:0 2px 8px rgba(0,0,0,.1);transition:.2s}
  .btn-white:hover{background:#f8f8f8;transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,0,0,.15)}

  .contact-section{padding:80px 0;background:var(--bg-primary)}
  .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
  .contact-info h3{font-size:28px;font-weight:800;color:var(--text-primary);margin-bottom:16px}
  .contact-info p{color:var(--text-secondary);margin-bottom:24px;font-size:16px}
  .contact-details{font-size:15px;color:var(--text-secondary)}
  .contact-details p{margin-bottom:10px;display:flex;align-items:center;gap:10px}
  .contact-details p::before{content:'•';color:var(--primary);font-weight:bold}
  .contact-form{background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;padding:32px;box-shadow:0 4px 16px var(--shadow)}
  .form-group{margin-bottom:18px}
  .form-control{width:100%;padding:14px 16px;border:1px solid var(--border);border-radius:6px;font:inherit;color:var(--text-primary);background:var(--bg-primary);transition:.2s}
  .form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,107,71,.1)}
  .form-control::placeholder{color:var(--text-tertiary)}
  textarea.form-control{resize:vertical;min-height:120px}

  .footer{padding:40px 0;background:var(--bg-secondary);border-top:1px solid var(--border)}
  .footer-content{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--text-tertiary)}
  .footer-left{display:flex;align-items:center;gap:12px}
  .footer-logo{width:28px;height:28px;background:var(--primary);border-radius:4px;display:grid;place-items:center;color:#fff;font-weight:700;font-size:14px}

  @media (max-width:1100px){
    .nav-links{display:none}
    .hero-grid{grid-template-columns:1fr;gap:40px}
    .hero-features {display:none}
    .hero-content h1{font-size:40px}
    .hero-content {text-align:center}
    .hero-buttons{justify-content:center}
    .hero {padding:60px 0 10px 0}
    .cards-grid.cols-4,.cards-grid.cols-3{grid-template-columns:1fr}
    .contact-grid{grid-template-columns:1fr;gap:40px}
    .footer-content{flex-direction:column;gap:16px;text-align:center}
    .hero-logo{width:240px;height:220px}
    .hero-logo-content .big{font-size:44px}
    .theme-toggle{bottom:20px;right:20px;width:48px;height:48px;font-size:18px}
  }

  @media (max-width:1100px){
    .hero-logo{display:none}
    .hero-logo-content .big{font-size:44px}
    .theme-toggle{bottom:20px;right:20px;width:48px;height:48px;font-size:18px}
  }