@font-face{font-family:'Arial';src:url('arial.ttf') format('truetype');font-weight:normal;font-style:normal}*{margin:0;padding:0;box-sizing:border-box}body{background-image:url('https://images.unsplash.com/photo-1506744038136-46273834b3fb?auto=format&blur=40&fit=crop&w=1920&q=80');background-size:cover;background-position:center;background-attachment:fixed;font-family:'Arial',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',sans-serif;margin:0;padding:0;min-height:100vh;display:flex;align-items:center;justify-content:center}.container{background:rgba(255,255,255,0.9);border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,0.1);padding:2rem;width:100%;max-width:400px;text-align:center;backdrop-filter:blur(10px);animation:slideIn 0.5s ease-out}@keyframes slideIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}h1{color:#333;font-size:1.5rem;font-weight:bold;margin-bottom:0.5rem;font-family:'Arial',sans-serif}.subtitle{color:#666;font-size:0.875rem;margin-bottom:1.5rem;font-family:'Arial',sans-serif}.captcha-container{margin:1.5rem 0;position:relative}#captcha-canvas{border:2px solid #e0e0e0;border-radius:8px;background:white;cursor:pointer;transition:border-color 0.3s ease;display:block;margin:0 auto}#captcha-canvas:hover{border-color:#3b82f6}.refresh-btn{background:none;border:none;color:#3b82f6;cursor:pointer;font-size:0.75rem;margin-top:0.5rem;text-decoration:underline;font-family:'Arial',sans-serif}.refresh-btn:hover{color:#2563eb}.form-container{margin-top:1rem}.captcha-input{width:100%;padding:0.75rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1.125rem;font-family:'Arial','Courier New',monospace;text-align:center;letter-spacing:5px;text-transform:uppercase;margin-bottom:1rem;transition:border-color 0.3s ease}.captcha-input:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,0.1)}.submit-btn{width:100%;background:#3b82f6;color:white;border:none;border-radius:8px;padding:0.75rem;font-size:1rem;font-weight:500;cursor:pointer;transition:all 0.3s ease;font-family:'Arial',sans-serif}.submit-btn:hover{background:#2563eb;transform:translateY(-1px);box-shadow:0 4px 12px rgba(59,130,246,0.4)}.submit-btn:disabled{background:#9ca3af;cursor:not-allowed;transform:none;box-shadow:none}.message{margin-top:1rem;padding:0.75rem;border-radius:8px;font-size:0.875rem;font-weight:500;animation:fadeIn 0.3s ease-in;font-family:'Arial',sans-serif}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}.message.error{background:#fef2f2;color:#dc2626;border:1px solid #fecaca}.message.hidden{display:none}@media (max-width:480px){.container{margin:1rem;padding:1.5rem}#captcha-canvas{width:180px;height:60px}.captcha-input{font-size:1rem;letter-spacing:3px}}.loading{opacity:0.7;pointer-events:none}.spinner{display:inline-block;width:16px;height:16px;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin 1s linear infinite;margin-right:8px}@keyframes spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}