.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.layout {
  display: flex;
  gap: 0;
  min-height: 100vh;
  background-color: var(--light-green);
}

.sidebar {
  width: 300px;
  flex-shrink: 0;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.main-content {
  flex: 1;
  padding: 20px;
  min-width: 0;
  background:
    radial-gradient(ellipse 50% 40% at 100% 0%, rgba(168, 213, 186, 0.35), transparent 60%),
    var(--light-green);
}

.content-grid {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.center-area {
  flex: 1;
}

.news-column {
  flex: 0 0 360px;
}

.news-column.hidden {
  display: none;
}

.static-info {
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 30px;
}

.static-placeholder {
  color: var(--primary-color);
  font-weight: 600;
}

.static-placeholder h3 {
  margin-top: 1.2rem;
  margin-bottom: 0.4rem;
}

.static-placeholder ul {
  list-style: disc;
  display: inline-block;
  text-align: left;
  margin: 0.5rem auto;
  padding-left: 1.2rem;
}

.card {
  background-color: var(--white);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--secondary-color);
}

.card-header {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 10px;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 10px;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--secondary-color);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--white);
}

.btn-secondary:hover {
  background-color: var(--primary-color);
}

.btn-danger {
  background-color: var(--error-color);
  color: var(--white);
}

.btn-danger:hover {
  background-color: #d32f2f;
}

.btn-success {
  background-color: var(--success-color);
  color: var(--white);
}

.btn-success:hover {
  background-color: #388e3c;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 600;
  color: var(--primary-color);
}

.tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--gray-medium);
}

.tab {
  padding: 10px 20px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-color);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.tab:hover {
  border-bottom-color: var(--accent-color);
}

.tab.active {
  border-bottom-color: var(--primary-color);
  color: var(--primary-color);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}

.message {
  padding: 15px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.message-success {
  background-color: #c8e6c9;
  color: #2e7d32;
  border-left: 4px solid var(--success-color);
}

.message-error {
  background-color: #ffcdd2;
  color: #c62828;
  border-left: 4px solid var(--error-color);
}

.loading {
  text-align: center;
  padding: 40px;
  color: var(--primary-color);
  font-weight: bold;
}

@media (max-width: 768px) {
  .layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .tabs {
    flex-wrap: wrap;
  }

  .tab {
    padding: 8px 15px;
    font-size: 0.9rem;
  }

  .content-grid {
    flex-direction: column;
  }

  .news-column {
    order: -1;
    width: 100%;
    flex: none;
  }

  .center-area {
    order: 0;
  }
}