/* 🔥 FONDO GENERAL */
body {
    margin: 0;
    padding: 0;
    background: #0f1c2e;
    color: white;
    font-family: Arial, Helvetica, sans-serif;
}

/* 🔥 NAVBAR */
nav {
    background: #1f3b5c;
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin-left: 15px;
    font-weight: bold;
}

nav a:hover {
    color: #00d4ff;
}

/* 🔥 GRID DASHBOARD */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

/* 🔥 TARJETAS */
.card {
    background: #1f3b5c;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    transition: 0.3s;
}

.card:hover {
    transform: scale(1.05);
}

/* 🔥 TITULOS */
h2, h3 {
    color: #00d4ff;
}

/* 🔥 ALERTAS */
.alert {
    background: #1f3b5c;
    border-left: 5px solid #00d4ff;
    padding: 15px;
    margin: 20px 0;
    border-radius: 6px;
}

/* 🔥 TABLAS */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

table th {
    background: #1f3b5c;
    padding: 10px;
}

table td {
    padding: 10px;
    border-bottom: 1px solid #2c4a6e;
}

/* 🔥 BOTONES */
button, a.button {
    background: #00d4ff;
    color: #0f1c2e;
    padding: 10px 15px;
    border-radius: 5px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-weight: bold;
}

button:hover, a.button:hover {
    background: #00aacc;
}