.page-container {
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
  font-family: "Open Sans", Arial, sans-serif;
  color: #1a1a1a;
}

h1 {
  font-weight: 700;
  font-size: 2.5rem;
  margin-bottom: 8px;
}

.subtitle {
  font-style: italic;
  margin-bottom: 24px;
  font-size: 1.1rem;
  color: #555;
}

.sections-nav {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.section-btn {
  background: none;
  border: 1.5px solid #0073e6;
  border-radius: 20px;
  padding: 8px 20px;
  font-size: 1rem;
  font-weight: 600;
  color: #0073e6;
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
}
.section-btn:hover {
  background-color: #0073e6;
  color: #fff;
}
.section-btn.active {
  background-color: #0073e6;
  color: #fff;
  cursor: default;
}

.documents {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.doc-card {
  display: flex;
  align-items: center;
  background: #f9f9f9;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0,115,230,0.07);
  padding: 16px 20px;
  cursor: pointer;
  transition: box-shadow 0.3s;
}
.doc-card:hover {
  box-shadow: 0 4px 24px rgba(0,115,230,0.13);
}

.doc-icon {
  font-size: 32px;
  color: #0073e6;
  margin-right: 16px;
  flex-shrink: 0;
}

.doc-info {
  display: flex;
  flex-direction: column;
}

.doc-date {
  font-size: 13px;
  color: #888;
  margin-bottom: 6px;
}

.doc-title {
  font-weight: 700;
  font-size: 1rem;
  color: #1a1a1a;
}

@media (max-width: 600px) {
  .sections-nav {
    flex-wrap: wrap;
    gap: 12px;
  }
  .section-btn {
    flex: 1 1 45%;
    padding: 10px 0;
    font-size: 0.95rem;
  }
  .documents {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}