body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 2em;
    margin: 0;
    background-color: #f4f6f8;
    color: #333;
}

.input {
    display: flex;
    gap: 0.75em;
    margin-top: 2em;
    align-items: center;
}

input {
    flex: 1;
    padding: 0.6em;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1em;
    background-color: #fff;
    transition: border-color 0.3s ease;
}

input:focus {
    border-color: #007bff;
    outline: none;
}

button {
    padding: 0.6em 1.5em;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 123, 255, 0.2);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

button:hover {
    background-color: #0056b3;
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.3);
}

.download {
    margin-top: 2em;
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    padding: 1.5em;
    border-radius: 10px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.06);
}

#progress-text {
    margin-bottom: 0.5em;
    font-weight: 500;
    color: #444;
}

#progress-bar {
    width: 100%;
    height: 20px;
    appearance: none;
    border-radius: 10px;
    overflow: hidden;
}

#progress-bar::-webkit-progress-bar {
    background-color: #e6e6e6;
    border-radius: 10px;
}

#progress-bar::-webkit-progress-value {
    background-color: #007bff;
}

#download-speed {
    margin-top: 1em;
    font-size: 0.95em;
    color: #555;
    font-style: italic;
}

.mensaje-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}