body {
    font-family: sans-serif;
    padding: 2em;
    margin: 0;
    background-color: #121212;
    color: #f0f0f0;
}

.navegacion {
    background-color: #1e1e1e;
    border-bottom: 1px solid #333;
    padding: 1em 2em;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.navegacion ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.5em;
    flex-wrap: wrap;
    justify-content: center;
}

.navegacion li {
    cursor: pointer;
    padding: 0.5em 1em;
    transition: background-color 0.3s ease, color 0.3s ease;
    border-radius: 4px;
    white-space: nowrap;
    color: #ccc;
}

.navegacion li:hover {
    background-color: #333;
    color: #fff;
}

@media (max-width: 600px) {
    .navegacion {
        padding: 0.5em 1em;
    }

    .navegacion ul {
        gap: 0.5em;
        justify-content: center;
    }

    .navegacion li {
        padding: 0.4em 0.6em;
        font-size: 0.9em;
    }
}

.history {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 10px;
}

.history-header,
.history-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    gap: 5px;
    padding: 5px;
    align-items: center;
}

.history-header {
    font-weight: bold;
    background-color: #2a2a2a;
    border-radius: 6px;
    color: #ddd;
}

.history-row {
    background-color: #1a1a1a;
    border: 1px solid #333;
    border-radius: 6px;
    color: #ccc;
}

.history-header div,
.history-row div {
    display: flex;
    align-items: center;
    justify-content: center;
}

.delete-action {
    display: flex;
    justify-content: center;
}

.delete-btn {
    background: none;
    border: none;
    color: #aaa;
    cursor: pointer;
    font-size: 1.1em;
    transition: color 0.3s ease;
}

.delete-btn:hover {
    color: #0078d7; /* Azul moderno */
}

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