* {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
}
 body {
     font-family: 'Verdana', Tahoma, Geneva, sans-serif;
     background: linear-gradient(135deg, #8c8c8c 0%, #000 100%);
     min-height: 100vh;
     display: flex;
     align-items: center;
     justify-content: center;
     padding: 20px;
}
 body h1 , body h2, body h3 {
     text-transform:uppercase;
}
 .login-container {
     background: white;
     padding: 3rem;
     border-radius: 20px;
     box-shadow: 0 20px 40px rgba(0,0,0,0.1);
     width: 100%;
     max-width: 400px;
}

 .login-header {
     text-align: center;
     margin-bottom: 2rem;
}

 .login-header h1 {
     color: #333;
     margin-bottom: 0.5rem;
}

 .login-header p {
     color: #666;
}

 .login-back {
     text-align: center;
     margin-top: 2rem;
}

 .form-group {
     margin-bottom: 1.5rem;
}
 label {
     display: block;
     margin-bottom: 0.5rem;
     color: #333;
     font-weight: 500;
}
 input[type="text"], input[type="password"] {
     width: 100%;
     padding: 12px 15px;
     border: 2px solid #e1e1e1;
     border-radius: 10px;
     font-size: 16px;
     transition: border-color 0.3s ease;
}
 input[type="text"]:focus, input[type="password"]:focus {
     outline: none;
     border-color: #667eea;
}
 .btn-login {
     width: 100%;
     padding: 15px;
     background: linear-gradient(135deg, #8c8c8c 0%, #000 100%);
     color: white;
     border: none;
     border-radius: 10px;
     font-size: 16px;
     font-weight: 600;
     cursor: pointer;
     transition: transform 0.3s ease;
}
 .btn-login:hover {
     transform: translateY(-2px);
}
 .error {
     background: #ff6b6b;
     color: white;
     padding: 10px 15px;
     border-radius: 5px;
     margin-bottom: 1rem;
     text-align: center;
}
 .debug {
     background: #ffeaa7;
     color: #2d3436;
     padding: 10px 15px;
     border-radius: 5px;
     margin-bottom: 1rem;
     font-size: 0.9em;
}
 .back-link {
     text-align: center;
     margin-top: 1.5rem;
}
 .back-link a {
     color: #8c8c8c;
     text-decoration: none;
}
 .back-link a:hover {
     text-decoration: underline;
}
 small {
     display: block;
     margin-top: 0.5rem;
     color: #666;
     font-size: 0.9em;
}