/* --- General Layout & Variables --- */
:root {
    --primary-color: #3498db; /* Un azul moderno */
    --primary-color-dark: #2980b9;
    --background-color: #f4f6f9;
    --surface-color: #ffffff;
    --text-color: #333333;
    --text-color-light: #777777;
    --border-color: #e0e0e0;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.gps-frontend-dashboard {
    background-color: var(--background-color);
    padding: 15px;
    border-radius: 8px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

/* --- Navigation --- */
.gps-nav {
    display: flex;
    flex-wrap: wrap;
    background-color: var(--surface-color);
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    padding: 10px;
}

.gps-nav a {
    padding: 10px 15px;
    text-decoration: none;
    color: var(--text-color-light);
    font-weight: 500;
    border-radius: 6px;
    transition: background-color 0.3s, color 0.3s;
}

.gps-nav a:hover {
    color: var(--primary-color);
}

.gps-nav a.active {
    background-color: var(--primary-color);
    color: #fff;
}

/* --- Cards --- */
.gps-card {
    background-color: var(--surface-color);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 20px;
}

.gps-card h2 {
    margin-top: 0;
    font-size: 1.5em;
    color: var(--primary-color);
}

/* --- Forms (Material Design Inspired) --- */
.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 10px 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: transparent;
    font-size: 1em;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group label {
    position: absolute;
    top: 10px;
    left: 10px;
    color: var(--text-color-light);
    pointer-events: none;
    transition: all 0.2s ease-out;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    top: -8px;
    left: 8px;
    font-size: 0.75em;
    color: var(--primary-color);
    background-color: var(--surface-color);
    padding: 0 5px;
}

/* --- Buttons --- */
.gps-btn {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 12px 20px;
    font-size: 1em;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
    text-transform: uppercase;
    box-shadow: 0 2px 2px 0 rgba(0,0,0,0.14), 0 3px 1px -2px rgba(0,0,0,0.12), 0 1px 5px 0 rgba(0,0,0,0.2);
}

.gps-btn:hover {
    background-color: var(--primary-color-dark);
    box-shadow: 0 3px 3px 0 rgba(0,0,0,0.14), 0 1px 7px 0 rgba(0,0,0,0.12), 0 3px 1px -1px rgba(0,0,0,0.2);
}

.gps-btn-secondary {
    background-color: #ecf0f1;
    color: var(--text-color);
}

.gps-btn-secondary:hover {
    background-color: #bdc3c7;
}

/* --- Table / List --- */
.gps-list-table {
    width: 100%;
    border-collapse: collapse;
}

.gps-list-table th, .gps-list-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.gps-list-table th {
    font-weight: 600;
    color: var(--text-color);
}

/* --- Responsive --- */
@media (max-width: 600px) {
    .gps-list-table thead {
        display: none; /* Ocultar encabezados en móvil */
    }

    .gps-list-table, .gps-list-table tbody, .gps-list-table tr, .gps-list-table td {
        display: block;
        width: 100%;
    }

    .gps-list-table tr {
        margin-bottom: 15px;
        border: 1px solid var(--border-color);
        border-radius: 4px;
    }

    .gps-list-table td {
        text-align: right; /* Alinear a la derecha */
        padding-left: 50%; /* Espacio para la etiqueta */
        position: relative;
        border-bottom: none;
    }

    .gps-list-table td::before {
        content: attr(data-label);
        position: absolute;
        left: 10px;
        width: calc(50% - 20px);
        padding-right: 10px;
        text-align: left;
        font-weight: bold;
    }
}