/* ==========================
   RESET & GLOBAL
========================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: #f8f6f0;
  color: #3B2F2F;
  line-height: 1.5;
}

/* ==========================
   HEADER
========================== */
.kegiatan-header {
  text-align: center;
  padding: 35px 15px 20px 15px;
}

.kegiatan-header h2 {
  font-size: 1.8rem;
  margin-bottom: 6px;
}

.kegiatan-header p {
  font-size: 0.95rem;
  color: #555;
  max-width: 700px;
  margin: 0 auto;
}

/* ==========================
   FILTER BUTTONS
========================== */
.filter-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin: 10px 0 20px 0;
}

.filter-btn {
  background-color: #fff;
  border: 2px solid #3B2F2F;
  padding: 5px 10px;
  cursor: pointer;
  border-radius: 5px;
  font-size: 0.75rem; /* lebih kecil */
  transition: 0.3s;
  white-space: nowrap; /* supaya teks tidak wrap */
}

.filter-btn.active,
.filter-btn:hover {
  background-color: #3B2F2F;
  color: #fff;
}

/* ==========================
   GRID KEGIATAN
========================== */
.activities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  padding: 0 15px 35px 15px;
}

.activity-card {
  background-color: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s, box-shadow 0.3s;
}

.activity-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.12);
}

.activity-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.activity-content {
  padding: 10px;
  flex-grow: 1;
}

.activity-category {
  font-size: 0.7rem; /* lebih kecil */
  font-weight: bold;
  color: #3B2F2F;
  display: inline-block;
  margin-bottom: 3px;
}

.activity-content h3 {
  font-size: 0.9rem;
  margin-bottom: 5px;
}

.activity-date,
.activity-author,
.activity-description {
  font-size: 0.7rem; /* lebih kecil */
  color: #555;
  margin-bottom: 3px;
}

.read-more {
  display: inline-block;
  margin-top: 6px;
  color: #3B2F2F;
  font-weight: bold;
  font-size: 0.7rem; /* lebih kecil */
  text-decoration: none;
  transition: 0.3s;
}

.read-more:hover {
  color: #1a73e8;
}

/* ==========================
   MEDIA QUERIES
========================== */

/* MOBILE: <= 480px */
@media (max-width: 480px) {
  .kegiatan-header h2 {
    font-size: 1.5rem;
  }
  .kegiatan-header p {
    font-size: 0.8rem;
  }
  .filter-btn {
    font-size: 0.65rem;
    padding: 4px 8px;
  }
  .activity-card img {
    height: 120px;
  }
  .activity-category, 
  .activity-content h3,
  .activity-date, 
  .activity-author, 
  .activity-description,
  .read-more {
    font-size: 0.65rem;
  }
}

/* TABLET: 481px - 768px */
@media (min-width: 481px) and (max-width: 768px) {
  .kegiatan-header h2 {
    font-size: 1.7rem;
  }
  .kegiatan-header p {
    font-size: 0.85rem;
  }
  .filter-btn {
    font-size: 0.7rem;
    padding: 4px 10px;
  }
  .activity-card img {
    height: 130px;
  }
  .activity-category, 
  .activity-content h3,
  .activity-date, 
  .activity-author, 
  .activity-description,
  .read-more {
    font-size: 0.7rem;
  }
}

/* LAPTOP: 769px - 1200px */
@media (min-width: 769px) and (max-width: 1200px) {
  .kegiatan-header h2 {
    font-size: 1.9rem;
  }
  .kegiatan-header p {
    font-size: 0.95rem;
  }
  .activity-card img {
    height: 140px;
  }
  .activity-category, 
  .activity-content h3,
  .activity-date, 
  .activity-author, 
  .activity-description,
  .read-more {
    font-size: 0.75rem;
  }
}

/* TV / DESKTOP BESAR: > 1200px */
@media (min-width: 1201px) {
  .activities-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .kegiatan-header h2 {
    font-size: 2.2rem;
  }
  .kegiatan-header p {
    font-size: 1rem;
  }
  .activity-card img {
    height: 160px;
  }
  .activity-category, 
  .activity-content h3,
  .activity-date, 
  .activity-author, 
  .activity-description,
  .read-more {
    font-size: 0.8rem;
  }
}