.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.25rem;
    padding: 0 0.85rem;
    font-size: 0.8rem;
    border-radius: 8px;
    text-decoration: none;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--primary);
    cursor: pointer;
    font-family: inherit;
    transition: border-color 0.15s, color 0.15s, background 0.15s, transform 0.05s ease;
    box-sizing: border-box;
    white-space: nowrap;
    margin-bottom: 3px;
  }

 .btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(48, 108, 134, 0.06);
  }

  .btn:active {
    transform: translateY(1px);
  }

  .btn.primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
  }

  .btn.primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #fff;
  }
.classes-wrap {
  margin-top: 1.5rem;
  max-width: 720px;
}

.classes-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.classes-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
}

.classes-subtitle {
  margin: 0.35rem 0 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.classes-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.class-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.class-row:hover {
  box-shadow: var(--shadow);
  border-color: rgba(48, 108, 134, 0.25);
}

.class-row__main {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
}

.class-row__name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text);
  margin: 0;
  letter-spacing: 0.2px;
}

.class-row__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-muted);
  font-size: 1.05rem;
  border: 1px dashed var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}


@media (max-width: 768px) {
  .classes-wrap {
    margin-top: 1rem;
  }

  .classes-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .classes-title {
    font-size: 1.15rem;
  }

  .classes-subtitle {
    font-size: 0.9rem;
  }

  .class-row {
    padding: 0.9rem 1rem;
    gap: 0.6rem;
  }

  .class-row__name {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .class-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .class-row__main,
  .class-row__actions {
    width: 100%;
  }

  .empty-state {
    padding: 1.5rem 1rem;
    font-size: 0.95rem;
  }
}