body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f4f9;
    background-image: url('https://raw.githubusercontent.com/bebegenial/imagenes-varias/refs/heads/main/Otros/fondo.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-attachment: fixed;
}

.container {
    background: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    width: 350px;
    transition: transform 0.3s ease;
}

.container:hover {
    transform: translateY(-5px);
}

h1 {
    text-align: center;
    margin-bottom: 25px;
    color: #333;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
    transition: color 0.3s ease;
}

input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 16px;
    transition: all 0.3s ease;
    background-color: #f9f9f9;
}

input:focus {
    outline: none;
    border-color: #007BFF;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
    background-color: white;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

button:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

button:active {
    transform: translateY(0);
}

.error-message {
    color: #dc3545;
    font-size: 14px;
    margin-top: 5px;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

#login-screen, #form-screen {
    animation: fadeIn 0.5s ease;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
/*
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}*/

/* Estilos para el formulario de registro */
#form-screen {
    padding: 20px;
    border-radius: 10px;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Estilos para los campos de entrada */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"] {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus {
    border-color: #007BFF;
    outline: none;
}

/* Estilos para el estado de carga del botón */
button:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
    opacity: 0.7;
}

.button-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.spinner {
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 2px solid white;
    width: 16px;
    height: 16px;
    animation: spin 1s linear infinite;
    display: none;
}

/* Mostrar el spinner cuando el botón esté en estado de carga */
button.loading .spinner {
    display: inline-block;
}

button.loading .button-text {
    display: none;
}