* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: #0f172a; /* Azul muy oscuro */
    color: #f8fafc;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    margin-top: 20px;
}

header h1 {
    font-size: 2.5rem;
    color: #38bdf8; /* Azul brillante */
}

.dashboard-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    width: 100%;
    max-width: 1000px;
}

.card {
    background: #1e293b;
    border: 1px solid #334155;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    border-color: #38bdf8;
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.card h2 {
    margin-bottom: 10px;
}

.card p {
    font-size: 0.9rem;
    color: #94a3b8;
    margin-bottom: 25px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #38bdf8;
    color: #0f172a;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #7dd3fc;
}

/* Diferenciación de colores para botones opcional */
.btn-server { background-color: #f59e0b; } /* Naranja */
.btn-client { background-color: #10b981; } /* Verde */

footer {
    margin-top: auto;
    padding: 20px;
    font-size: 0.8rem;
    color: #475569;
}