/* ======= Layout dasar ======= */
body {
  background-color: #f0f2f5;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: #1c1e21;
  font-size: 16px;
  line-height: 1.6;
}

/* ======= Header ======= */
.pkp_structure_head {
  background-color: #1877F2;
  color: white;
  padding: 30px 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.pkp_structure_head h1,
.pkp_structure_head h2 {
  color: white;
  font-size: 2.4rem;
  font-weight: 700;
  margin: 0;
}

/* ======= Link ======= */
a {
  color: #1877F2;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #145db2;
  text-decoration: underline;
}

/* ======= Button ======= */
button,
input[type="submit"],
.pkp_button {
  background-color: #1877F2;
  border: none;
  color: white;
  padding: 0.6em 1.4em;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover,
input[type="submit"]:hover,
.pkp_button:hover {
  background-color: #145db2;
}

/* ======= Artikel List / Card ======= */
.obj_article_summary {
  background: white;
  border-radius: 6px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.1);
  padding: 20px;
  margin-bottom: 20px;
  transition: box-shadow 0.3s ease;
}

.obj_article_summary:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* ======= Footer ======= */
.pkp_structure_footer {
  background-color: #4267B2;
  color: #e4e6eb;
  padding: 20px 0;
  text-align: center;
  font-size: 0.9rem;
}

/* ======= Heading Artikel ======= */
.obj_article_title {
  font-size: 1.4rem;
  color: #1877F2;
  margin-bottom: 10px;
}

/* ======= Responsive Header ======= */
@media (max-width: 768px) {
  .pkp_structure_head h1,
  .pkp_structure_head h2 {
    font-size: 1.6rem;
  }
}