:root {
    --minedu-blue: #3478BC;
    --minedu-dark-blue: #1a365d;
    --text-gray: #4a5568;
    --bg-gray: #f4f7f9;
}

/* Cabecera Oficial */
.header {
    background: white;
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
}

    .header img {
        height: 50px; /* Ajustar según logos oficiales */
    }

.system-title {
    padding: 20px 5%;
    font-size: 1.2rem;
    font-weight: bold;
    color: #2d3748;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-gray);
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    border-top: 6px solid var(--minedu-blue);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 600px;
    width: 90%;
}

.icon {
    font-size: 60px;
    margin-bottom: 20px;
}

h1 {
    color: var(--minedu-dark-blue);
    font-size: 24px;
    margin-bottom: 10px;
}

p {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 30px;
}

.btn-primary {
    background-color: var(--minedu-blue);
    color: white;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: background 0.3s;
}

    .btn-primary:hover {
        background-color: #2c5282;
    }

/* Pie de página */
.footer {
    padding: 20px 5%;
    background: white;
    border-top: 1px solid #e2e8f0;
    font-size: 0.85rem;
    color: var(--text-gray);
    text-align: center;
}

.footer-links a {
    color: var(--minedu-blue);
    text-decoration: none;
    margin-left: 15px;
}

@media (max-width: 600px) {
    .header {
        gap: 10px;
        text-align: center;
    }

    .footer {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}